Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java @ 15:9ad6ec2d09c3

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Implemented restoring artifacts from database. artifacts/trunk@30 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 07 Sep 2009 10:06:23 +0000
parents 0d16d1bb2df0
children 5a6b6a3debc7
rev   line source
13
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1 package de.intevation.artifactdatabase;
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2
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3 import org.w3c.dom.Document;
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4
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5 import java.util.UUID;
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6
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7 import java.sql.Connection;
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8 import java.sql.SQLException;
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9 import java.sql.PreparedStatement;
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10 import java.sql.Types;
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11 import java.sql.ResultSet;
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12 import java.sql.Timestamp;
14
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13
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14 import javax.sql.DataSource;
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15
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16 import java.io.IOException;
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17 import java.io.ByteArrayInputStream;
14
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18 import java.io.ByteArrayOutputStream;
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19 import java.io.ObjectOutputStream;
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20 import java.io.ObjectInputStream;
14
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21
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22 import java.util.zip.GZIPOutputStream;
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23 import java.util.zip.GZIPInputStream;
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24
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25 import de.intevation.artifacts.ArtifactFactory;
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26 import de.intevation.artifacts.Artifact;
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27
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28 /**
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29 * @author Sascha L. Teichmann
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30 */
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31 public class Backend
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32 {
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33 public static final String SQL_NEXT_ID =
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34 SQL.get("artifacts.id.nextval");
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35
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36 public static final String SQL_INSERT =
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37 SQL.get("artifacts.insert");
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38
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39 public static final String SQL_UPDATE =
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40 SQL.get("artifacts.update");
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41
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42 public static final String SQL_TOUCH =
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43 SQL.get("artifacts.touch");
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44
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45 public static final String SQL_LOAD_BY_GID =
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46 SQL.get("artifacts.select.gid");
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47
14
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48 /**
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49 * Used to wrap the calls to invole database actions.
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50 */
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51 public class ArtifactProxy
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52 implements Artifact
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53 {
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54 protected Artifact original;
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55 protected int id;
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56 protected boolean unwritten;
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57
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58 public ArtifactProxy() {
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59 }
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60
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61 public ArtifactProxy(Artifact original, int id, boolean unwritten) {
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62 this.original = original;
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63 this.id = id;
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64 this.unwritten = unwritten;
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65 }
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66
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67 public Artifact getOriginal() {
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68 return original;
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69 }
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70
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71 public int getId() {
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72 return id;
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73 }
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74
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75 public boolean isUnwritten() {
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76 return unwritten;
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77 }
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78
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79 public String identifier() {
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80 return original.identifier();
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81 }
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82
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83 public String hash() {
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84 return original.hash();
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85 }
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86
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87 public Document describe(Object context) {
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88 try {
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89 return original.describe(context);
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90 }
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91 finally {
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92 touch(this);
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93 }
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94 }
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95
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96 public Document advance(Document target, Object context) {
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97 try {
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98 return original.advance(target, context);
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99 }
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100 finally {
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101 store(this);
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102 }
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103 }
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104
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105 public Document feed(Document data, Object context) {
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106 try {
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107 return original.feed(data, context);
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108 }
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109 finally {
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110 store(this);
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111 }
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112 }
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113
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114 public byte [] out(Document format, Object context) {
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115 try {
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116 return original.out(format, context);
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117 }
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118 finally {
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119 touch(this);
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120 }
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121 }
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122
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123 public void setup(String identifier, Object context) {
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diff changeset
124 original.setup(identifier, context);
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125 }
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diff changeset
126
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diff changeset
127 public void endOfLife(Object context) {
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diff changeset
128 original.endOfLife(context);
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129 }
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130
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diff changeset
131 public byte [] toBytes() {
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diff changeset
132 try {
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133 ByteArrayOutputStream bos = new ByteArrayOutputStream();
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134 GZIPOutputStream gos = new GZIPOutputStream(bos);
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diff changeset
135 ObjectOutputStream oos = new ObjectOutputStream(gos);
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diff changeset
136
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diff changeset
137 oos.writeObject(original);
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diff changeset
138 oos.flush();
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diff changeset
139
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diff changeset
140 return bos.toByteArray();
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141 }
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diff changeset
142 catch (IOException ioe) {
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143 throw new RuntimeException(ioe);
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144 }
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145 }
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146 } // class ArtifactProxy
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147
13
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148 public Backend() {
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149 }
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150
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151 public Artifact getArtifact(String idenitfier) {
15
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152 UUID uuid;
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153
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154 try {
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155 uuid = UUID.fromString(idenitfier);
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156 }
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157 catch (IllegalArgumentException iae) {
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158 return null;
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159 }
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diff changeset
160
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161 return getArtifactByUUID(uuid);
13
0d6badf6af42 Added not yet working backend to artifact database.
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162 }
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163
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164 public Artifact createArtifactWithFactory(
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165 ArtifactFactory factory, Object context
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166 ) {
14
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diff changeset
167 UUID uuid = UUID.randomUUID();
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diff changeset
168 Artifact artifact = factory.createArtifact(
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diff changeset
169 uuid.toString(), context);
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170
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diff changeset
171 Long ttl = factory.timeToLiveUntouched(
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diff changeset
172 artifact, context);
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diff changeset
173
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diff changeset
174 int id = insertDatabase(uuid, ttl);
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diff changeset
175
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diff changeset
176 return new ArtifactProxy(artifact, id, true);
13
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177 }
14
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178
15
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179 protected Artifact getArtifactByUUID(UUID uuid) {
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180
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diff changeset
181 Connection connection = null;
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diff changeset
182 PreparedStatement stmnt_load = null;
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183 ResultSet load_result = null;
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diff changeset
184
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diff changeset
185 DataSource dataSource = DBConnection.getDataSource();
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diff changeset
186 try {
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187 connection = dataSource.getConnection();
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188 stmnt_load = connection.prepareStatement(SQL_LOAD_BY_GID);
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diff changeset
189 stmnt_load.setString(1, uuid.toString());
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diff changeset
190
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diff changeset
191 load_result = stmnt_load.executeQuery();
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diff changeset
192
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diff changeset
193 if (!load_result.next()) {
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194 return null;
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diff changeset
195 }
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diff changeset
196
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diff changeset
197 int id = load_result.getInt(1);
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diff changeset
198 long ttl = load_result.getLong(3);
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diff changeset
199
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diff changeset
200 if (!load_result.wasNull()) { // real time to life
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diff changeset
201 long last_access = load_result.getTimestamp(2).getTime();
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diff changeset
202 if (last_access + ttl > System.currentTimeMillis()) {
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diff changeset
203 artifactOutdated(id);
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diff changeset
204 return null;
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diff changeset
205 }
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diff changeset
206 }
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diff changeset
207
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diff changeset
208 byte [] bytes = load_result.getBytes(4);
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diff changeset
209
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diff changeset
210 if (bytes == null) {
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diff changeset
211 return null;
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diff changeset
212 }
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diff changeset
213
9ad6ec2d09c3 Implemented restoring artifacts from database.
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diff changeset
214 Artifact original = restoreArtifact(bytes);
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diff changeset
215 if (original == null) {
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diff changeset
216 return null;
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diff changeset
217 }
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diff changeset
218
9ad6ec2d09c3 Implemented restoring artifacts from database.
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diff changeset
219 return new ArtifactProxy(original, id, false);
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diff changeset
220 }
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diff changeset
221 catch (SQLException sqle) {
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diff changeset
222 sqle.printStackTrace(System.err);
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diff changeset
223 }
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diff changeset
224 finally {
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diff changeset
225 if (load_result != null) {
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diff changeset
226 try { load_result.close(); }
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diff changeset
227 catch (SQLException sqle) {}
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diff changeset
228 }
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diff changeset
229 if (stmnt_load != null) {
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diff changeset
230 try { load_result.close(); }
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parents: 14
diff changeset
231 catch (SQLException sqle) {}
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parents: 14
diff changeset
232 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
233 if (connection != null) {
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diff changeset
234 try { connection.close(); }
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parents: 14
diff changeset
235 catch (SQLException sqle) {}
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
236 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
237 }
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diff changeset
238 return null;
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
239 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
240
9ad6ec2d09c3 Implemented restoring artifacts from database.
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diff changeset
241 public static Artifact restoreArtifact(byte [] bytes) {
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diff changeset
242
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diff changeset
243 ObjectInputStream ois = null;
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diff changeset
244
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parents: 14
diff changeset
245 try {
9ad6ec2d09c3 Implemented restoring artifacts from database.
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diff changeset
246 ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
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diff changeset
247 GZIPInputStream gis = new GZIPInputStream(bis);
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diff changeset
248 ois = new ObjectInputStream(gis);
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diff changeset
249
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diff changeset
250 return (Artifact)ois.readObject();
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diff changeset
251 }
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parents: 14
diff changeset
252 catch (IOException ioe) {
9ad6ec2d09c3 Implemented restoring artifacts from database.
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diff changeset
253 ioe.printStackTrace(System.err);
9ad6ec2d09c3 Implemented restoring artifacts from database.
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parents: 14
diff changeset
254 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
255 catch (ClassNotFoundException cnfe) {
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
256 cnfe.printStackTrace(System.err);
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
257 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
258 catch (ClassCastException cce) {
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
259 cce.printStackTrace(System.err);
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
260 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
261 finally {
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
262 if (ois != null) {
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
263 try { ois.close(); }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
264 catch (IOException ioe) { }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
265 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
266 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
267
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
268 return null;
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
269 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
270
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
271 protected void artifactOutdated(int id) {
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
272 System.err.println("artifactOutdated: id = " + id);
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
273 }
9ad6ec2d09c3 Implemented restoring artifacts from database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 14
diff changeset
274
14
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
275 protected int insertDatabase(UUID uuid, Long ttl) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
276 Connection connection = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
277 PreparedStatement stmnt_next_id = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
278 PreparedStatement stmnt_insert = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
279 ResultSet res_id = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
280
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
281 DataSource dataSource = DBConnection.getDataSource();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
282 try {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
283 connection = dataSource.getConnection();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
284 try {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
285 connection.setAutoCommit(false);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
286
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
287 stmnt_next_id = connection.prepareStatement(SQL_NEXT_ID);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
288 stmnt_insert = connection.prepareStatement(SQL_INSERT);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
289
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
290 res_id = stmnt_next_id.executeQuery();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
291
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
292 if (!res_id.next()) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
293 throw new RuntimeException("No id generated");
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
294 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
295
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
296 int id = res_id.getInt(1);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
297
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
298 stmnt_insert.setInt(1, id);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
299 stmnt_insert.setString(2, uuid.toString());
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
300 if (ttl == null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
301 stmnt_insert.setNull(3, Types.BIGINT);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
302 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
303 else {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
304 stmnt_insert.setLong(3, ttl.longValue());
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
305 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
306
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
307 stmnt_insert.execute();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
308
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
309 connection.commit();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
310
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
311 return id;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
312 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
313 catch (SQLException sqle) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
314 connection.rollback();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
315 throw sqle;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
316 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
317 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
318 catch (SQLException sqle) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
319 sqle.printStackTrace(System.err);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
320 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
321 finally {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
322 if (res_id != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
323 try { res_id.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
324 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
325 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
326 if (stmnt_insert != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
327 try { stmnt_insert.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
328 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
329 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
330 if (stmnt_next_id != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
331 try { stmnt_next_id.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
332 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
333 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
334 if (connection != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
335 try { connection.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
336 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
337 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
338 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
339 throw new RuntimeException("failed insert artifact into database");
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
340 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
341
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
342 public void touch(ArtifactProxy proxy) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
343 System.err.println("touch: " + proxy);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
344 if (proxy.isUnwritten()) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
345 store(proxy);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
346 return;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
347 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
348 Connection connection = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
349 PreparedStatement stmnt_touch = null;
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
350 DataSource dataSource = DBConnection.getDataSource();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
351 try {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
352 connection = dataSource.getConnection();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
353 try {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
354 connection.setAutoCommit(false);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
355 stmnt_touch = connection.prepareStatement(SQL_UPDATE);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
356 stmnt_touch.setInt(1, proxy.getId());
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
357 stmnt_touch.execute();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
358 connection.commit();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
359 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
360 catch (SQLException sqle) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
361 connection.rollback();
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
362 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
363 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
364 catch (SQLException sqle) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
365 sqle.printStackTrace(System.err);
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
366 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
367 finally {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
368 if (stmnt_touch != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
369 try { stmnt_touch.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
370 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
371 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
372 if (connection != null) {
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
373 try { connection.close(); }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
374 catch (SQLException sqle) {}
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
375 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
376 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
diff changeset
377 }
0d16d1bb2df0 Initial checkin of artigact persistents back by database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 13
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378
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379 public void store(ArtifactProxy proxy) {
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380 System.err.println("store: " + proxy);
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381 Connection connection = null;
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382 PreparedStatement stmnt_update = null;
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383 DataSource dataSource = DBConnection.getDataSource();
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384 try {
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385 connection = dataSource.getConnection();
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386 try {
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387 connection.setAutoCommit(false);
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388 stmnt_update = connection.prepareStatement(SQL_UPDATE);
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389 stmnt_update.setInt(1, proxy.getId());
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390 stmnt_update.setBytes(2, proxy.toBytes());
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391 stmnt_update.execute();
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392 connection.commit();
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393 }
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394 catch (SQLException sqle) {
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395 connection.rollback();
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396 }
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397 }
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398 catch (SQLException sqle) {
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399 sqle.printStackTrace(System.err);
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400 }
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diff changeset
401 finally {
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parents: 13
diff changeset
402 if (stmnt_update != null) {
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parents: 13
diff changeset
403 try { stmnt_update.close(); }
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parents: 13
diff changeset
404 catch (SQLException sqle) {}
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parents: 13
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405 }
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parents: 13
diff changeset
406 if (connection != null) {
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parents: 13
diff changeset
407 try { connection.close(); }
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parents: 13
diff changeset
408 catch (SQLException sqle) {}
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parents: 13
diff changeset
409 }
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parents: 13
diff changeset
410 }
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parents: 13
diff changeset
411 }
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parents: 13
diff changeset
412
13
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parents:
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413 }
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parents:
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414 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org