Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/Sync.java @ 4421:0b0f415203f0

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Add new Filter class to change caching Add new Filter class to avoid caching of GWT nocache files in browsers and http proxies. The new Filter class NoCacheFilter sets http headers to stop the proxies and browesers from storing the nocache files.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 06 Nov 2012 13:32:06 +0100
parents 06891562e633
children f939e1e6cfa4
rev   line source
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1 package de.intevation.aft;
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2
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3 import java.io.File;
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4
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5 import java.net.URL;
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6 import java.net.MalformedURLException;
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7
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8 import java.sql.SQLException;
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9
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.NodeList;
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12 import org.w3c.dom.Element;
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13
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14 import org.apache.log4j.Logger;
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15
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16 import javax.xml.xpath.XPathConstants;
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17
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18 import de.intevation.utils.XML;
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19
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20 import de.intevation.db.ConnectionBuilder;
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21
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22 public class Sync
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23 {
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24 private static Logger log = Logger.getLogger(Sync.class);
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25
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26 public static final String FLYS = "flys";
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27 public static final String AFT = "aft";
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28
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29 public static final String XPATH_DIPS = "/sync/dips/file/text()";
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30 public static final String XPATH_REPAIR = "/sync/dips/repair/text()";
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31
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32 public static final String XPATH_NOTIFICATIONS =
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33 "/sync/notifications/notification";
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34
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35 public static final String CONFIG_FILE =
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36 System.getProperty("config.file", "config.xml");
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37
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38 public static void sendNotifications(Document config) {
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39 NodeList notifications = (NodeList)XML.xpath(
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40 config, XPATH_NOTIFICATIONS, XPathConstants.NODESET, null, null);
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41
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42 if (notifications == null) {
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43 return;
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44 }
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45
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46 for (int i = 0, N = notifications.getLength(); i < N; ++i) {
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47 Element notification = (Element)notifications.item(i);
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48 String urlString = notification.getAttribute("url");
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49
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50 URL url;
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51 try {
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52 url = new URL(urlString);
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53 }
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54 catch (MalformedURLException mfue) {
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55 log.warn("NOTIFY: Invalid URL '" + urlString + "'. Ignored.", mfue);
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56 continue;
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57 }
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58
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59 Notification n = new Notification(notification);
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60
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61 Document result = n.sendPOST(url);
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62
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63 if (result != null) {
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64 log.info("Send notifcation to '" + urlString + "'.");
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65 log.info(XML.toString(result));
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66 }
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67 }
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68 }
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69
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70 public static void main(String [] args) {
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71
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72 File configFile = new File(CONFIG_FILE);
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73
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74 if (!configFile.isFile() || !configFile.canRead()) {
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75 log.error("cannot read config file");
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76 System.exit(1);
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77 }
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78
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79 Document config = XML.parseDocument(configFile, Boolean.FALSE);
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80
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81 if (config == null) {
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82 log.error("Cannot load config file.");
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83 System.exit(1);
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84 }
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85
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86 String dipsF = (String)XML.xpath(
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87 config, XPATH_DIPS, XPathConstants.STRING, null, null);
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88
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89 if (dipsF == null || dipsF.length() == 0) {
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90 log.error("Cannot find path to DIPS XML in config.");
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91 System.exit(1);
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92 }
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93
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94 File dipsFile = new File(dipsF);
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95
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96 if (!dipsFile.isFile() || !dipsFile.canRead()) {
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97 log.error("DIPS: Cannot find '" + dipsF + "'.");
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98 System.exit(1);
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99 }
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100
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101 Document dips = XML.parseDocument(dipsFile, Boolean.FALSE);
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102
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103 if (dips == null) {
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104 log.error("DIPS: Cannot load DIPS document.");
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105 System.exit(1);
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106 }
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107
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108 String repairF = (String)XML.xpath(
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109 config, XPATH_REPAIR, XPathConstants.STRING, null, null);
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110
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111 if (repairF != null && repairF.length() > 0) {
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112 File repairFile = new File(repairF);
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113 if (!repairFile.isFile() || !repairFile.canRead()) {
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114 log.warn("REPAIR: Cannot open DIPS repair XSLT file.");
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115 }
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116 else {
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117 Document fixed = XML.transform(dips, repairFile);
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118 if (fixed == null) {
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119 log.warn("REPAIR: Fixing DIPS failed.");
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120 }
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121 else {
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122 dips = fixed;
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123 }
44dc38ca8492 Added an optional XSL transformation to fix the raw DIPS files.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4077
diff changeset
124 }
44dc38ca8492 Added an optional XSL transformation to fix the raw DIPS files.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4077
diff changeset
125 }
4090
d556e29592f5 Create new discharge tables if needed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4089
diff changeset
126
d556e29592f5 Create new discharge tables if needed.
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diff changeset
127 int exitCode = 0;
4083
44dc38ca8492 Added an optional XSL transformation to fix the raw DIPS files.
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parents: 4077
diff changeset
128
4073
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
129 ConnectionBuilder aftConnectionBuilder =
2c70fae83d0c start syncing at river level.
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diff changeset
130 new ConnectionBuilder(AFT, config);
2c70fae83d0c start syncing at river level.
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diff changeset
131
4072
88f801888d85 load configuration an setup db connections.
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diff changeset
132 ConnectionBuilder flysConnectionBuilder =
88f801888d85 load configuration an setup db connections.
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diff changeset
133 new ConnectionBuilder(FLYS, config);
88f801888d85 load configuration an setup db connections.
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diff changeset
134
4077
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
135 SyncContext syncContext = null;
4094
b20b710aa86f Bubble up modifications up to main().
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parents: 4090
diff changeset
136
b20b710aa86f Bubble up modifications up to main().
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diff changeset
137 boolean modified = false;
4073
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
138 try {
4077
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
139 syncContext = new SyncContext(
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
140 aftConnectionBuilder.getConnectedStatements(),
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
141 flysConnectionBuilder.getConnectedStatements(),
97de7a552b79 Load DIPS XML
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4075
diff changeset
142 dips);
4089
859b4781554a Prefetch existing time intervals from FLYS db.
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parents: 4083
diff changeset
143 syncContext.init();
4075
dbd0b3b1b8b8 Sync each river.
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parents: 4073
diff changeset
144 Rivers rivers = new Rivers();
4094
b20b710aa86f Bubble up modifications up to main().
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diff changeset
145 modified = rivers.sync(syncContext);
4073
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
146 }
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
147 catch (SQLException sqle) {
4110
06891562e633 Extracted and documented the error messages of the process.
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parents: 4104
diff changeset
148 log.error("SYNC: Syncing failed.", sqle);
4090
d556e29592f5 Create new discharge tables if needed.
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diff changeset
149 exitCode = 1;
4073
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diff changeset
150 }
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
151 finally {
4077
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
152 if (syncContext != null) {
97de7a552b79 Load DIPS XML
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parents: 4075
diff changeset
153 syncContext.close();
4075
dbd0b3b1b8b8 Sync each river.
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parents: 4073
diff changeset
154 }
4073
2c70fae83d0c start syncing at river level.
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parents: 4072
diff changeset
155 }
4090
d556e29592f5 Create new discharge tables if needed.
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parents: 4089
diff changeset
156
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
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parents: 4094
diff changeset
157 if (modified) {
4104
cdcf98245e36 Commit/rollback changes if a gauge is only updated.
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parents: 4095
diff changeset
158 log.info("Modifications found.");
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
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parents: 4094
diff changeset
159 sendNotifications(config);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4094
diff changeset
160 }
4104
cdcf98245e36 Commit/rollback changes if a gauge is only updated.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4095
diff changeset
161 else {
cdcf98245e36 Commit/rollback changes if a gauge is only updated.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4095
diff changeset
162 log.info("No modifications found.");
cdcf98245e36 Commit/rollback changes if a gauge is only updated.
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parents: 4095
diff changeset
163 }
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4094
diff changeset
164
4090
d556e29592f5 Create new discharge tables if needed.
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parents: 4089
diff changeset
165 if (exitCode != 0) {
d556e29592f5 Create new discharge tables if needed.
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parents: 4089
diff changeset
166 System.exit(1);
d556e29592f5 Create new discharge tables if needed.
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parents: 4089
diff changeset
167 }
4067
d5aed044ca0d Added AFT sync module.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
168 }
d5aed044ca0d Added AFT sync module.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
169 }
d5aed044ca0d Added AFT sync module.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
170 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org