Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/OutputStateBase.java @ 522:c896282c2601

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Issue 156 solved. Added width, height and points as parameter to svg and pdf output mode. Width and height have an effact on the width and height of the export, points is a boolean property which enables/disables the drawing of data points. gnv-artifacts/trunk@616 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 25 Jan 2010 09:18:31 +0000
parents cef17cc90fd0
children 6484464d2059
rev   line source
335
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.state;
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5
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6 import de.intevation.artifactdatabase.Config;
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7
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8 import de.intevation.artifacts.CallContext;
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9 import de.intevation.artifacts.CallMeta;
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10
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11 import de.intevation.gnv.artifacts.cache.CacheFactory;
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12
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13 import de.intevation.gnv.artifacts.ressource.RessourceFactory;
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14
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15 import de.intevation.gnv.geobackend.base.Result;
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16
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17 import de.intevation.gnv.geobackend.base.query.QueryExecutor;
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18 import de.intevation.gnv.geobackend.base.query.QueryExecutorFactory;
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19
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20 import de.intevation.gnv.geobackend.base.query.exception.QueryException;
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21
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22 import de.intevation.gnv.state.exception.StateException;
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23
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24 import java.io.OutputStream;
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25
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26 import java.util.ArrayList;
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27 import java.util.Collection;
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28 import java.util.Locale;
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29
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30 import org.apache.log4j.Logger;
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31
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32 import org.w3c.dom.Document;
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33 import org.w3c.dom.Element;
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34 import org.w3c.dom.Node;
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35 import org.w3c.dom.NodeList;
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36
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37 /**
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38 * @author Tim Englich <tim.englich@intevation.de>
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39 *
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40 */
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41 public abstract class OutputStateBase
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42 extends StateBase
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43 implements OutputState
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44 {
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45 public static final String XPATH_OUTPUT_MODE =
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46 "/art:action/art:out/@name";
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47
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48 public static final String XPATH_MIME_TYPE =
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49 "/art:action/art:out/art:mime-type/@value";
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50
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51 /**
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52 * The UID of this Class
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53 */
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54 private static final long serialVersionUID = -1718732895737303823L;
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55
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56 /**
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57 * the logger, used to log exceptions and additonaly information
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58 */
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59 private static Logger log = Logger.getLogger(OutputStateBase.class);
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60
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61 /**
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62 * The different Outputmodes which are provided by an OutputState
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63 */
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64 protected Collection<OutputMode> outputModes = null;
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65
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66 protected String queryODVID = null;
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67
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68 /**
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69 * Constructor
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70 */
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71 public OutputStateBase() {
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72 super();
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73 }
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74
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75 /**
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76 * @see de.intevation.gnv.state.OutputState#getOutputModes()
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77 */
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78 public Collection<OutputMode> getOutputModes() {
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79 log.debug("OutputStateBase.getOutputModes");
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80 return this.outputModes;
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81 }
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82
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83 /**
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84 * @see de.intevation.gnv.state.StateBase#setup(org.w3c.dom.Node)
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85 */
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86 @Override
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87 public void setup(Node configuration) {
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88 log.debug("OutputStateBase.setup");
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89 super.setup(configuration);
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90
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91 this.queryODVID = Config.getStringXPath(configuration,"queryID-odv");
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92
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93 NodeList outputModeList = Config.getNodeSetXPath(configuration,
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94 "outputsModes/outputsMode");
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95 if (outputModeList != null) {
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96 log.debug(outputModeList.getLength() + " were found.");
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97 this.outputModes = new ArrayList<OutputMode>(outputModeList
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98 .getLength());
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99 for (int i = 0; i < outputModeList.getLength(); i++) {
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100 Element currentNode = (Element)outputModeList.item(i);
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101 String name = currentNode.getAttribute("name");
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102 String description =currentNode.getAttribute("description");
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103 String mimeType = currentNode.getAttribute("mime-type");
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104 NodeList inputValuesList = Config.getNodeSetXPath(currentNode,
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105 "parameters/inputvalue");
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106 Collection<InputValue> inputParameters = null;
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107 if (inputValuesList != null) {
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108 inputParameters = new ArrayList<InputValue>(inputValuesList
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109 .getLength());
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110 for (int j = 0; j < inputValuesList.getLength(); j++) {
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111 Element currentInputValuesNode = (Element)inputValuesList.item(j);
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112 String inputValueName = currentInputValuesNode.getAttribute("name");
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113 String inputValueType = currentInputValuesNode.getAttribute("type");
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114 String defaultValue =currentInputValuesNode.getAttribute("value");
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115 boolean isMultiselect = false;
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116 InputValue inputValue = new DefaultInputValue(
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117 inputValueName, inputValueType, defaultValue,
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118 isMultiselect);
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119 inputParameters.add(inputValue);
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120 }
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121 }
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122
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123 OutputMode outputMode = new DefaultOutputMode(name,
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124 description, mimeType, inputParameters);
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125 log.debug(outputMode.toString());
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126 this.outputModes.add(outputMode);
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127
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128 }
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129 }
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130 }
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131
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132 /**
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133 * @see de.intevation.gnv.state.StateBase#advance()
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134 */
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135 @Override
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136 public void advance(String uuid, CallContext context)
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137 throws StateException
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138 {
335
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139 }
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140
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141 @Override
493
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142 public void initialize(String uuid, CallContext context)
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143 throws StateException
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144 {
335
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145 }
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146
480
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147 public void out(
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148 Document format,
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149 Collection<InputData> inputData,
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150 OutputStream outputStream,
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151 String uuid,
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152 CallMeta callMeta
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153 )
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154 throws StateException
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155 {
335
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156 }
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157
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158 /**
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159 * @see de.intevation.gnv.state.OutputState#out(java.lang.String,
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160 * java.util.Collection, java.io.OutputStream)
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161 */
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162 public void out(String outputMode, Collection<InputData> inputData,
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163 OutputStream outputStream) throws StateException {
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164 }
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165
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166 /**
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167 * @return
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168 */
439
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169 protected Object getChartResult(String uuid, CallContext callContext) {
335
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170 log.debug("OutputStateBase.getChartResult");
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171 Object result = null;
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172 if (CacheFactory.getInstance().isInitialized()) {
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173 String key = uuid + super.getID();
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174 log.debug("Hash for Queryelements: " + key);
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175 net.sf.ehcache.Element value = CacheFactory.getInstance().getCache().get(key);
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176 if (value != null) {
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177 result = value.getObjectValue();
335
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178 }else{
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179 result = this.getData(this.queryID);
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180 if (CacheFactory.getInstance().isInitialized()) {
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181 CacheFactory.getInstance().getCache().put(new net.sf.ehcache.Element(key, result));
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182 }
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183
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184 }
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185 }
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186 return result;
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187 }
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188
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189 protected Object getChartFromCache(String uuid, CallContext callContext) {
335
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190 log.debug("Fetch chart [" + uuid + "] from cache");
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191 CacheFactory cacheFactory = CacheFactory.getInstance();
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192 if (cacheFactory.isInitialized()) {
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193 String key = "chart_" + uuid + super.getID();
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194 net.sf.ehcache.Element object = cacheFactory.getCache().get(key);
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195
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196 if (object != null) {
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197 return object.getObjectValue();
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198 }
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199 }
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200 return null;
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201 }
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202
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203 protected Collection<Result> getODVResult(String uuid) {
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204 log.debug("OutputStateBase.getODVResult");
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205 // TODO add Caching? I think it's not nessessary
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206 Collection<Result> returnValue = null;
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207 if (this.queryODVID != null){
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208 returnValue = this.getData(this.queryODVID);
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209 }else{
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210 log.warn("No Query for ODV Data is defined.");
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211 }
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212 return returnValue;
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213 }
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214
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215 /**
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216 * @param returnValue
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217 * @return
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218 */
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219 private Collection<Result> getData(String queryID) {
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220 log.debug("OutputStateBase.getData");
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221 Collection<Result> returnValue = null;
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222 try {
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223 String[] filterValues = this.generateFilterValuesFromInputData();
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224 try {
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225 QueryExecutor queryExecutor = QueryExecutorFactory
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226 .getInstance()
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227 .getQueryExecutor();
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228 returnValue = queryExecutor.executeQuery(queryID,filterValues);
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229 } catch (RuntimeException e) {
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230 log.error(e, e);
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231 }
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232 } catch (QueryException e) {
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233 log.error(e, e);
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234 }
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235 return returnValue;
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236 }
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237
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238 protected void removeChartResult(String uuid) {
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239 log.debug("OutputStateBase.getChartResult");
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240 if (CacheFactory.getInstance().isInitialized()) {
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241 String key = uuid + super.getID();
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242 log.debug("Hash for Queryelements: " + key);
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243 net.sf.ehcache.Element value = CacheFactory.getInstance().getCache().get(key);
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244 if (value != null) {
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245 CacheFactory.getInstance().getCache().remove(key);
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246 }
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247 }
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248 }
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249
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250 protected void removeChart(String uuid) {
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251 log.debug("OutputStateBase.removeChart from cache");
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252
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253 CacheFactory cacheFactory = CacheFactory.getInstance();
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254 if (cacheFactory.isInitialized()) {
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255 String key = "chart_" + uuid + super.getID();
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256 net.sf.ehcache.Element object = cacheFactory.getCache().get(key);
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257 if (object != null)
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258 cacheFactory.getCache().remove(key);
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259 }
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260 }
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261
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262 protected void purifyChart(Object chart, String uuid) {
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263 log.debug("Prufify chart [" + uuid + "]");
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264 CacheFactory cacheFactory = CacheFactory.getInstance();
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265 if (cacheFactory.isInitialized()) {
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266 String key = "chart_" + uuid + getID();
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267 cacheFactory.getCache().put(new net.sf.ehcache.Element(key, chart));
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268 }
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269 }
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270
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271 /**
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272 * @see de.intevation.gnv.state.StateBase#putInputData(java.util.Collection, java.lang.String)
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273 */
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274 @Override
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275 public void putInputData(Collection<InputData> inputData,
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276 String uuid)
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277 throws StateException {
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278 log.debug("OutputStateBase.putInputData");
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279 this.removeChartResult(uuid);
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280 this.removeChart(uuid);
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281 super.putInputData(inputData, uuid);
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282 }
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283
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284 public void out(String outputMode, Collection<InputData> inputData,
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285 OutputStream outputStream, String uuid, CallMeta callMeta)
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286 throws StateException {
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287 }
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288
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289
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290 protected String getMessage(Locale locale, String key, String value) {
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291 return RessourceFactory.getInstance().getRessource(
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292 locale,
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293 key,
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294 value
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295 );
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296 }
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297 }
http://dive4elements.wald.intevation.org