Mercurial > dive4elements > http-client

annotate src/main/java/de/intevation/artifacts/httpclient/http/HttpClientImpl.java @ 21:79a5a2455d6d

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Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents. http-client/trunk@2042 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 01 Jun 2011 14:32:24 +0000
parents 5cb8513b9e78
children c4431f39926a
rev   line source
1
c9ac6642973c Renamed GNVClient and GNVClientImpl to HttpClient and HttpClientImpl.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8 package de.intevation.artifacts.httpclient.http;
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9
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10 import java.io.InputStream;
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11 import java.io.IOException;
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12 import java.io.OutputStream;
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13 import java.util.ArrayList;
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14 import java.util.List;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import org.restlet.Client;
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19 import org.restlet.Request;
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20 import org.restlet.Response;
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21 import org.restlet.data.ClientInfo;
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22 import org.restlet.data.Language;
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23 import org.restlet.data.MediaType;
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24 import org.restlet.data.Method;
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25 import org.restlet.data.Preference;
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26 import org.restlet.data.Protocol;
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27 import org.restlet.data.Status;
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28 import org.restlet.ext.xml.DomRepresentation;
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29 import org.restlet.representation.Representation;
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30
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31 import org.w3c.dom.Document;
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32
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33 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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34 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler;
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35 import de.intevation.artifacts.httpclient.http.response.ResponseHandler;
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36 import de.intevation.artifacts.httpclient.http.response.StreamResponseHandler;
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37 import de.intevation.artifacts.httpclient.objects.Artifact;
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38 import de.intevation.artifacts.httpclient.objects.ArtifactFactory;
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39 import de.intevation.artifacts.httpclient.utils.ArtifactProtocolUtils;
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40 import de.intevation.artifacts.httpclient.utils.ArtifactCreator;
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41
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42
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43 /**
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44 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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45 */
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46 public class HttpClientImpl implements HttpClient {
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47
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48 private static final Logger logger = Logger.getLogger(HttpClient.class);
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49
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50 /** The URL part of the resource to list the existing users of the server.*/
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51 public static final String PATH_LIST_USERS = "/list-users";
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52
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53 /** The URL part of the resource to list the Collections owned by a specific
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54 * user.*/
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55 public static final String PATH_USER_COLLECTIONS = "/list-collections";
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56
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57 /** The URL part of the resource to call a specific service.*/
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58 public static final String PATH_SERVICE = "/service";
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59
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60 /** The URL path of the resource to create new artifact collections.*/
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61 public static final String PATH_CREATE_COLLECTION = "/create-collection";
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62
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63 /** The URL path of the resource to work with an artifact collections.*/
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64 public static final String PATH_ACTION_COLLECTION = "/collection";
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65
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66 /** The URL path of the resource to work with an artifact collections.*/
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67 public static final String PATH_OUT_COLLECTION = "/collection";
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68
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69 private String serverUrl;
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70
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71 private String localeString;
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72
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73 private static final ThreadLocal<Client> CLIENT =
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74 new ThreadLocal<Client>() {
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75 @Override
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76 protected Client initialValue() {
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77 logger.debug("create new HTTP client");
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78 return new Client(Protocol.HTTP);
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79 }
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80 };
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81
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82 public HttpClientImpl(String serverUrl) {
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83 this.serverUrl = serverUrl;
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84 }
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85
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86
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87 /**
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88 * This constructor might be used to modify the request's locale manually.
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89 * E.g. the localization should not be based on the configured browser
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90 * locale, but site specific configuration - than you are able to set the
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91 * locale in this constructor.
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92 *
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93 * @param serverUrl The url that is used for the request.
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94 * @param localeString The string representation of the desired locale.
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95 */
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96 public HttpClientImpl(String serverUrl, String localeString) {
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97 this(serverUrl);
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98
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99 this.localeString = localeString;
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100 }
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101
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102
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103 @Override
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104 public ArtifactFactory[] getArtifactFactories()
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105 throws ConnectionException
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106 {
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107 ResponseHandler handler = new DocumentResponseHandler();
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108
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109 try {
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110 String url = serverUrl + "/factories";
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111 Document result = (Document) handler.handle(doGet(url));
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112
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113 return ArtifactProtocolUtils.extractArtifactFactories(result);
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114 }
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115 catch (IOException ioe) {
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116 throw new ConnectionException(
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117 "Connection to server failed. No Factories recieved.");
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118 }
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119 }
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120
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121
2
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122 /**
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123 * This method creates a new artifact in the artifact server and returns
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124 * this artifact. The new artifact is created using <i>creator</i>. If no
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125 * {@link ArtifactCreator} is given (null), an {@link Artifact} is returned.
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126 *
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127 * @param doc The CREATE document.
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128 * @param creator The {@link ArtifactCreator} that is used to extract the
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129 * new artifact from response document of the server.
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130 *
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131 * @return the new artifact.
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132 */
1
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133 @Override
2
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134 public Object create(Document doc, ArtifactCreator creator)
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135 throws ConnectionException
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136 {
1
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137 ResponseHandler handler = new DocumentResponseHandler();
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138
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139 try {
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140 String url = serverUrl + "/create";
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141 Document result = (Document) handler.handle(doPost(url, doc));
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142
2
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143 return creator == null
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144 ? ArtifactProtocolUtils.extractArtifact(result)
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145 : creator.create(result);
1
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146 }
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147 catch (IOException ioe) {
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148 throw new ConnectionException(
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149 "Connection to server failed. No Artifact created.");
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150 }
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151 }
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152
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153
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154 @Override
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155 public Object describe(
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156 Artifact artifact,
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157 Document doc,
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158 ResponseHandler handler)
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159 throws ConnectionException
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160 {
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161 try {
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162 String url = serverUrl + "/artifact/" + artifact.getUuid();
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163 return handler.handle(doPost(url, doc));
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164 }
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165 catch (IOException ioe) {
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166 throw new ConnectionException(
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167 "Connection to server failed: " + ioe.getMessage());
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168 }
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169 }
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170
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171
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172 @Override
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173 public Object feed(Artifact artifact, Document doc, ResponseHandler handler)
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174 throws ConnectionException
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175 {
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176 try {
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177 String url = serverUrl + "/artifact/" + artifact.getUuid();
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178 Document result = (Document) handler.handle(doPost(url, doc));
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179
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180 return result;
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181 }
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182 catch (IOException ioe) {
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183 throw new ConnectionException(
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184 "Connection to server failed: " + ioe.getMessage());
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185 }
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186 }
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187
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188
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189 @Override
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190 public Object advance(Artifact artifact, Document doc, ResponseHandler handler)
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191 throws ConnectionException
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192 {
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193 try {
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194 String url = serverUrl + "/artifact/" + artifact.getUuid();
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195 Document result = (Document) handler.handle(doPost(url, doc));
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196
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197 return result;
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198 }
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199 catch (IOException ioe) {
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200 throw new ConnectionException(
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201 "Connection to server failed: " + ioe.getMessage());
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202 }
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203 }
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204
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205
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206 @Override
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207 public void out(
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208 Artifact artifact,
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209 Document doc,
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210 String target,
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211 OutputStream out)
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212 throws ConnectionException
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213 {
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214 try {
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215 String url =
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216 serverUrl
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217 + "/artifact/"
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218 + artifact.getUuid()
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219 + "/" + target;
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220
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221 ResponseHandler handler = new StreamResponseHandler();
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222
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223 InputStream stream = (InputStream) handler.handle(doPost(url, doc));
17
5cb8513b9e78 Improved the stream handling.
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224 try {
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225 byte[] b = new byte[4096];
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226 int i;
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227 while ((i = stream.read(b)) >= 0) {
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228 out.write(b, 0, i);
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229 }
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230 }
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231 finally {
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232 stream.close();
1
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233 }
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234 }
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235 catch (IOException ioe) {
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236 throw new ConnectionException(
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237 "Connection to server failed: " + ioe.getMessage());
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238 }
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239 }
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240
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241
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242 //==============================
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243 // HTTP specific methods
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244 //==============================
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245
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246 private Response doPost(String url, Document body) throws IOException {
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247 if (logger.isDebugEnabled()) {
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248 logger.debug("Start HTTP-POST request to: " + url);
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249 }
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250
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251 Client client = getClient();
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252 Request request = prepareRequest(Method.POST, url);
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253
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254 Representation representation = new DomRepresentation(
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255 MediaType.APPLICATION_XML,
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256 body);
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257
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258 request.setEntity(representation);
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259 Response response = client.handle(request);
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260
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261 Status status = response.getStatus();
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262 if (status.getCode() != 200) {
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263 logger.error("Response status: " + status.getCode());
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264 throw new IOException(status.getDescription());
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265 }
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266
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267 return response;
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268 }
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269
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270
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271 private static Client getClient() {
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272 return CLIENT.get();
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273 }
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274
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275
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276 private Response doGet(String url) throws IOException {
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277 if (logger.isDebugEnabled()) {
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278 logger.debug("Start HTTP-POST request to: "+ url);
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279 }
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280
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281 Client client = getClient();
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282 Request request = prepareRequest(Method.GET, url);
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283
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284 Response response = client.handle(request);
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285
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286 Status status = response.getStatus();
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287 if (status.getCode() != 200) {
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288 logger.error("Response status: " + status.getCode());
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289 throw new IOException(status.getDescription());
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290 }
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291
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292 return response;
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293 }
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294
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295
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296 /**
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297 * This method prepares the request object.
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298 *
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299 * @param method The HTTP method (GET,POST).
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300 * @param url The URL used for the request.
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301 *
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302 * @return the request object.
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303 */
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304 private Request prepareRequest(Method method, String url) {
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305 Request request = new Request(method, url);
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306
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307 ClientInfo info = request.getClientInfo();
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308
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309 setLocale(info);
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310
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311 request.setClientInfo(info);
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312
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313 return request;
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314 }
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315
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316
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317 /**
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318 * This method is called to set the request's locale.
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319 *
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320 * @param info The ClientInfo that is used to provide request information.
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321 */
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322 private void setLocale(ClientInfo info) {
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323 if (localeString == null) {
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324 return;
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325 }
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326
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327 List<Preference<Language>> accepted =
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328 new ArrayList<Preference<Language>>();
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329
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330 Language lang = Language.valueOf(localeString);
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331
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332 if (lang != null) {
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333 if (logger.isDebugEnabled()) {
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334 logger.debug(
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335 "Set locale of the request object: " + lang.toString());
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336 }
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337
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338 Preference<Language> pref = new Preference<Language>();
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339 pref.setMetadata(lang);
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340 accepted.add(pref);
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341
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342 info.setAcceptedLanguages(accepted);
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343 }
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344 }
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345
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346
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347 //==============================
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348 // Collection API
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349 //==============================
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350
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351 /**
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352 * This method triggers the artifact servers resource to create a new
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353 * artifact collection.
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354 *
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355 * @param create The CREATE document for the collection.
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356 * @param ownerId The uuid of the creator.
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357 * @param handler The handler that is used to create the result object.
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358 *
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359 * @return a result object created by <i>handler</i>.
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360 */
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361 public Object createCollection(
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362 Document create,
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
363 String ownerId,
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
364 ResponseHandler handler)
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
365 throws ConnectionException
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
366 {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
367 String url = serverUrl + PATH_CREATE_COLLECTION + "/" + ownerId;
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
368
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
369 try {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
370 return handler.handle(doPost(url, create));
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
371 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
372 catch (IOException ioe) {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
373 throw new ConnectionException(ioe.getMessage(), ioe);
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
374 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
375 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
376
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
377
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
378 /**
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
379 * This method might be used to trigger a collection specific action. The
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
380 * action that is executed depends on the document <i>actionDoc</i>.
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
381 *
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
382 * @param actionDoc The document that describes the action to be executed.
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
383 * @param uuid The uuid of the collection.
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
384 * @param handler The handler that is used to create the result object.
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
385 *
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
386 * @return a result object created by <i>handler</i>.
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
387 */
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
388 public Object doCollectionAction(
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
389 Document actionDoc,
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
390 String uuid,
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
391 ResponseHandler handler)
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
392 throws ConnectionException
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
393 {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
394 String url = serverUrl + PATH_ACTION_COLLECTION + "/" + uuid;
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
395
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
396 try {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
397 return handler.handle(doPost(url, actionDoc));
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
398 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
399 catch (IOException ioe) {
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
400 throw new ConnectionException(ioe.getMessage(), ioe);
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
401 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
402 }
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
403
09a84c6e263a Enhanced the HttpClient with a method sto trigger a collection specific action.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 5
diff changeset
404
9
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
405 /**
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
406 * This method triggers the out() operation of a Collection. The result of
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
407 * this operation is written to <i>out</i> directly - there is no return
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
408 * value.
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
409 *
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
410 * @param doc The request document for the out() operation.
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
411 * @param uuid The identifier of the Collection.
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
412 * @param type The name of the output type.
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
413 * @param out The OutputStream.
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
414 */
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
415 public void collectionOut(
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
416 Document doc,
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
417 String uuid,
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
418 String type,
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
419 OutputStream out)
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
420 throws ConnectionException
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
421 {
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
422 try {
12
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
423 InputStream stream = collectionOut(doc, uuid, type);
9
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
424
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
425 byte[] b = new byte[4096];
17
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
426 try {
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
427 int i;
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
428 while ((i = stream.read(b)) >= 0) {
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
429 out.write(b, 0, i);
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
430 }
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
431 }
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
432 finally {
5cb8513b9e78 Improved the stream handling.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 12
diff changeset
433 stream.close();
9
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
434 }
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
435 }
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
436 catch (IOException ioe) {
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
437 throw new ConnectionException(ioe.getMessage(), ioe);
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
438 }
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
439 }
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
440
072e8d488f83 Enhanced the HttpClient with a method to trigger the out() operation of Collections.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 7
diff changeset
441
12
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
442 /**
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
443 * This method triggers the out() operation of a Collection. The result of
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
444 * this operation is returned as an InputStream.
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
445 *
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
446 * @param doc The request document for the out() operation.
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
447 * @param uuid The identifier of the Collection.
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
448 * @param type The name of the output type.
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
449 *
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
450 * @return an InputStream.
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
451 */
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
452 public InputStream collectionOut(
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
453 Document doc,
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
454 String uuid,
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
455 String type)
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
456 throws ConnectionException
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
457 {
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
458 String url = serverUrl + PATH_OUT_COLLECTION + "/" + uuid + "/" + type;
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
459
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
460 ResponseHandler handler = new StreamResponseHandler();
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
461
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
462 try {
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
463 return (InputStream) handler.handle(doPost(url, doc));
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
464 }
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
465 catch (IOException ioe) {
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
466 throw new ConnectionException(ioe.getMessage(), ioe);
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
467 }
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
468 }
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
469
5b62267a1c3c The HttpClient got a new method that returns the InputStream of a Collection's OUT operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 11
diff changeset
470
4
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
471 /*******************************
5
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
472 * Service API
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
473 *******************************/
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
474
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
475 public Document callService(String url, String service, Document input)
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
476 throws ConnectionException
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
477 {
21
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
478 if (logger.isDebugEnabled()) {
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
479 logger.debug("Start service call to '" + service + "'");
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
480 }
5
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
481
21
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
482 DocumentResponseHandler handler = new DocumentResponseHandler();
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
483
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
484 try {
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
485 String serverUrl = url + PATH_SERVICE + "/" + service;
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
486 return (Document) handler.handle(doPost(serverUrl, input));
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
487 }
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
488 catch (IOException ioe) {
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
489 throw new ConnectionException(
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
490 "Connection to server failed: " + ioe.getMessage());
79a5a2455d6d Use Apache HTTP Client as the underlaying transport agent. Use thread local instances to re-use agents.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 17
diff changeset
491 }
5
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
492 }
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
493
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
494
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
495 /*******************************
4
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
496 * Users API
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
497 *******************************/
5
7917c21fad01 Enabled the HttpClient to call services that are registered at the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 4
diff changeset
498
4
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
499 public Document listUsers()
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
500 throws ConnectionException
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
501 {
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
502 ResponseHandler handler = new DocumentResponseHandler();
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
503 String url = serverUrl + PATH_LIST_USERS;
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
504
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
505 try {
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
506 return (Document) handler.handle(doGet(url));
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
507 }
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
508 catch (IOException ioe) {
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
509 throw new ConnectionException(ioe.getMessage(), ioe);
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
510 }
19b3ba7f2568 Added a method to the http client to list the existing users of the artifact database.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3
diff changeset
511 }
7
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
512
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
513
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
514 public Document listUserCollections(String userid)
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
515 throws ConnectionException
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
516 {
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
517 ResponseHandler handler = new DocumentResponseHandler();
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
518
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
519 String url = serverUrl + PATH_USER_COLLECTIONS + "/" + userid;
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
520
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
521 try {
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
522 return (Document) handler.handle(doGet(url));
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
523 }
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
524 catch (IOException ioe) {
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
525 throw new ConnectionException(ioe.getMessage(), ioe);
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
526 }
06e9e25632cd Added a method to the HttpClient to list the collection of a user.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 6
diff changeset
527 }
1
c9ac6642973c Renamed GNVClient and GNVClientImpl to HttpClient and HttpClientImpl.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
528 }
c9ac6642973c Renamed GNVClient and GNVClientImpl to HttpClient and HttpClientImpl.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
529 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org