Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/FLYS.java @ 605:9e30c776cbef

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Improved the exception handling. flys-client/trunk@2212 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 23 Jun 2011 09:22:54 +0000
parents 347cf4a5a486
children 854312c0528c
rev   line source
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1 package de.intevation.flys.client.client;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5 import java.util.Set;
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7 import com.google.gwt.core.client.EntryPoint;
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8 import com.google.gwt.core.client.GWT;
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9 import com.google.gwt.event.shared.UmbrellaException;
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10 import com.google.gwt.user.client.rpc.AsyncCallback;
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11 import com.google.gwt.user.client.ui.RootPanel;
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12 import com.google.gwt.xml.client.XMLParser;
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14 import com.smartgwt.client.util.SC;
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15 import com.smartgwt.client.widgets.Window;
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16 import com.smartgwt.client.widgets.HTMLPane;
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17 import com.smartgwt.client.widgets.layout.VLayout;
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18 import com.smartgwt.client.widgets.layout.HLayout;
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19 import com.smartgwt.client.widgets.events.CloseClickHandler;
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20 import com.smartgwt.client.widgets.events.CloseClientEvent;
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22 import de.intevation.flys.client.shared.model.Artifact;
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23 import de.intevation.flys.client.shared.model.Collection;
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24 import de.intevation.flys.client.shared.model.CollectionItem;
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25 import de.intevation.flys.client.shared.model.River;
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26 import de.intevation.flys.client.shared.model.User;
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28 import de.intevation.flys.client.client.services.ArtifactService;
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29 import de.intevation.flys.client.client.services.ArtifactServiceAsync;
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30 import de.intevation.flys.client.client.services.DescribeCollectionService;
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31 import de.intevation.flys.client.client.services.DescribeCollectionServiceAsync;
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32 import de.intevation.flys.client.client.services.GetArtifactService;
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33 import de.intevation.flys.client.client.services.GetArtifactServiceAsync;
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34 import de.intevation.flys.client.client.services.RiverService;
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35 import de.intevation.flys.client.client.services.RiverServiceAsync;
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36 import de.intevation.flys.client.client.services.UserService;
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37 import de.intevation.flys.client.client.services.UserServiceAsync;
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38 import de.intevation.flys.client.client.ui.CollectionView;
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39 import de.intevation.flys.client.client.ui.FLYSHeader;
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40 import de.intevation.flys.client.client.ui.FLYSView;
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41 import de.intevation.flys.client.client.ui.FLYSWorkspace;
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42 import de.intevation.flys.client.client.ui.MainMenu;
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43 import de.intevation.flys.client.client.ui.ProjectList;
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44 import de.intevation.flys.client.client.ui.FLYSFooter;
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46
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47 /**
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48 * Entry point classes define <code>onModuleLoad()</code>.
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49 *
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50 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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51 */
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52 public class FLYS implements EntryPoint {
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54 /** The message class that provides i18n strings.*/
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55 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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56
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57 /** The UserService used to retrieve information about the current user. */
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58 protected UserServiceAsync userService = GWT.create(UserService.class);
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60 /** The RiverService used to retrieve the supported rivers of the server.*/
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61 protected RiverServiceAsync riverService = GWT.create(RiverService.class);
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63 /** The ArtifactService used to communicate with the Artifact server. */
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64 protected ArtifactServiceAsync artifactService =
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65 GWT.create(ArtifactService.class);
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67 /** The ArtifactService used to communicate with the Artifact server. */
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68 protected DescribeCollectionServiceAsync describeCollectionService =
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69 GWT.create(DescribeCollectionService.class);
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71 /** The GetArtifactService used to open an existing collection. */
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72 protected GetArtifactServiceAsync getArtifactService =
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73 GWT.create(GetArtifactService.class);
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76 /** The menu bar at the top of the application.*/
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77 protected MainMenu menu;
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79 /** The content window. It takes the whole space beneath the menu bar.*/
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80 protected FLYSView view;
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82 /** The project list that displays the projects of the user.*/
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83 protected ProjectList projectList;
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85 /** The FLYSWorkspace.*/
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86 protected FLYSWorkspace workspace;
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88 /** The footer. */
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89 protected FLYSFooter footer;
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91 /** The user who is currently logged in.*/
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92 protected User currentUser;
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94 /** The list of rivers supported by the server.*/
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95 protected River[] rivers;
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97 /** This list is used to track the opened projects.*/
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98 protected List<String> openProjects;
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101 /**
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102 * This is the entry point method.
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103 */
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104 public void onModuleLoad() {
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105 openProjects = new ArrayList<String>();
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107 GWT.setUncaughtExceptionHandler(new GWT.UncaughtExceptionHandler() {
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108 public void onUncaughtException(Throwable e) {
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109 showWarning(e);
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110 }
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111 });
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112
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113 VLayout vertical = new VLayout();
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114 vertical.setLayoutMargin(1);
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115 vertical.setWidth100();
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116 vertical.setHeight100();
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117
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118 HLayout spacerBar = new HLayout();
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119 spacerBar.setWidth("100%");
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120 spacerBar.setHeight("20px");
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121 spacerBar.setStyleName("bgBlueLight");
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122
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123 menu = new MainMenu(this);
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124 view = new FLYSView();
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125 footer = new FLYSFooter(this);
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126
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127 vertical.addMember(new FLYSHeader());
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128 vertical.addMember(menu);
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129 vertical.addMember(spacerBar);
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130 vertical.addMember(view);
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131 vertical.addMember(footer);
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132
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133 RootPanel.get("app").add(vertical);
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134
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135 initConfiguration();
229
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136
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137 Config config = Config.getInstance();
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138 String url = config.getServerUrl();
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139 String locale = config.getLocale();
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140
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141 getRivers();
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142
229
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143 userService.getCurrentUser(url, locale, new AsyncCallback<User>() {
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144 public void onFailure(Throwable caught) {
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145 GWT.log("Could not find a logged in user.");
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146 SC.warn(MSG.getString(caught.getMessage()));
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147 }
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148
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149 public void onSuccess(User user) {
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150 GWT.log("Found a user. Set '"+ user.getName() + "'");
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151 setCurrentUser(user);
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152
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153 menu.setCurrentUser(user);
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154
225
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155 projectList = new ProjectList(FLYS.this, user);
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156 workspace = new FLYSWorkspace();
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157 view.setProjectList(projectList);
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158 view.setFLYSWorkspace(workspace);
217
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159
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160 readRivers();
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161 }
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162 });
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163 }
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164
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165
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166 public void showWarning(Throwable e) {
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167 StringBuilder sb = new StringBuilder();
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168 sb.append("<tt>");
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169
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170 if (e instanceof UmbrellaException) {
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171 UmbrellaException u = (UmbrellaException) e;
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172 Set<Throwable> throwables = u.getCauses();
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173
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174 for (Throwable t: throwables) {
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175 sb.append(t.getLocalizedMessage());
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176 sb.append("<br>");
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177 }
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178 }
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179 else {
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180 sb.append(e.getLocalizedMessage());
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181 }
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182
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183 sb.append("</tt>");
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184
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185 Window w = new Window();
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186 w.setTitle(MSG.unexpected_exception());
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187 w.setWidth(550);
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188 w.setHeight(300);
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189 w.centerInPage();
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190 w.setCanDragResize(true);
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191
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192 HTMLPane p = new HTMLPane();
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193 p.setContents(sb.toString());
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194
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195 w.addItem(p);
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196 w.show();
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197 }
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198
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199
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200 /**
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201 * This method should be called at system start. It initialzes the client
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202 * configuration.
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203 */
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204 protected void initConfiguration() {
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205 String xml = FLYSResources.INSTANCE.initialConfiguration().getText();
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206 Config.getInstance(XMLParser.parse(xml));
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207 }
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208
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209
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210 /**
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211 * Returns the user that is currently logged in.
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212 *
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213 * @return the current user.
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214 */
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215 public User getCurrentUser() {
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216 return currentUser;
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217 }
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218
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219
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220 /**
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221 * Sets the current user.
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222 */
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223 public void setCurrentUser(User user) {
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224 currentUser = user;
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225 }
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226
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227
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228 /**
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229 * Returns the project list.
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230 */
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231 public ProjectList getProjectList() {
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232 return projectList;
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233 }
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234
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235
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236 /**
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237 * Returns the projects workspace that contains all project windows.
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238 *
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239 * @return the FLYSWorkspace.
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240 */
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241 public FLYSWorkspace getWorkspace() {
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242 return workspace;
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243 }
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244
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245
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246 /**
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247 * Returns a list of rivers supported by the artifact server.
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248 *
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249 * @return a list of rivers supported by the artifact server.
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250 */
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251 public River[] getRivers() {
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252 return rivers;
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253 }
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254
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255
217
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256 protected void readRivers() {
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257 Config config = Config.getInstance();
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258 String url = config.getServerUrl();
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259 String locale = config.getLocale();
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260
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261 GWT.log("Fetch rivers from server '" + url + "'");
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262
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263 riverService.list(url, locale, new AsyncCallback<River[]>() {
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264 public void onFailure(Throwable caught) {
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265 GWT.log("Could not recieve a list of rivers.");
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266 SC.warn(MSG.getString(caught.getMessage()));
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267 }
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268
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269 public void onSuccess(River[] newRivers) {
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270 GWT.log("Retrieved " + newRivers.length + " new rivers.");
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271 rivers = newRivers;
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272 }
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273 });
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274 }
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275
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276
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277 /**
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278 * This method creates a new CollectionView and adds it to the workspace.
217
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279 * <b>NOTE</b>The user needs to be logged in and there need to at least one
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280 * river - otherwise a warning is displayed and no CollectionView is
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281 * created.
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282 */
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283 public void newProject() {
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284 if (getCurrentUser() == null) {
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285 SC.warn(MSG.error_not_logged_in());
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286 return;
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287 }
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288
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289 if (getRivers() == null) {
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290 SC.warn(MSG.error_no_rivers_found());
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291 readRivers();
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292
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293 return;
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294 }
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295
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296 CollectionView view = new CollectionView(this);
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297 workspace.addView("new-project", view);
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298
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299 view.addCollectionChangeHandler(getProjectList());
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300 }
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301
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302
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303 protected void lockProject(String uuid) {
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304 if (isProjectLocked(uuid)) {
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305 return;
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306 }
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307
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308 openProjects.add(uuid);
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309 }
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310
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311
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312 protected void unlockProject(String uuid) {
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313 openProjects.remove(uuid);
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314 }
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315
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316
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317 protected boolean isProjectLocked(String uuid) {
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318 return openProjects.contains(uuid);
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319 }
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320
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321
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322 public void openProject(final String collectionID) {
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323 if (collectionID == null) {
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324 return;
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325 }
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326
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327 if (isProjectLocked(collectionID)) {
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328 workspace.bringUp(collectionID);
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329 return;
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330 }
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331
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332 lockProject(collectionID);
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333
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334 GWT.log("Open existing project: " + collectionID);
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335
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336 Config config = Config.getInstance();
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337 final String url = config.getServerUrl();
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338 final String locale = config.getLocale();
225
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339
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340 describeCollectionService.describe(collectionID, url, locale,
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341 new AsyncCallback<Collection>() {
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342 public void onFailure(Throwable caught) {
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343 SC.warn(MSG.getString(caught.getMessage()));
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344 }
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345
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346 public void onSuccess(Collection c) {
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347 final Collection collection = c;
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348 final CollectionItem item = c.getItem(0);
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349
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350 if (item == null) {
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351 SC.warn(MSG.error_load_parameterization());
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352 return;
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353 }
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354
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355 getArtifactService.getArtifact(
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356 url,
229
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357 locale,
225
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358 item.identifier(),
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359 item.hash(),
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360 new AsyncCallback<Artifact>() {
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361 public void onFailure(Throwable caught) {
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362 unlockProject(collectionID);
225
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363 SC.warn(MSG.getString(caught.getMessage()));
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364 }
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365
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366 public void onSuccess(Artifact artifact) {
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367 CollectionView view = new CollectionView(
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368 FLYS.this, collection, artifact);
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369
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370 view.addCollectionChangeHandler(
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371 getProjectList());
557
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372 view.addCloseClickHandler(
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373 new CloseCollectionViewHandler(
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374 FLYS.this, collectionID));
225
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375
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376 workspace.addView(collectionID, view);
225
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377 }
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378 });
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379
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380 }
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381 });
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382 }
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383
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384
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385 /**
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386 * Create a new Artifact.
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387 */
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388 public void newArtifact(String factory) {
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389 Config config = Config.getInstance();
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390 String url = config.getServerUrl();
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391 String locale = config.getLocale();
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392
229
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393 artifactService.create(url, locale, factory,
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394 new AsyncCallback<Artifact>() {
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395 public void onFailure(Throwable caught) {
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396 GWT.log("Could not create the new artifact.");
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397 SC.warn(MSG.getString(caught.getMessage()));
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398 }
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399
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400 public void onSuccess(Artifact artifact) {
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401 GWT.log("Successfully created a new artifact.");
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402 }
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403 });
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404 }
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405
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406
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407
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408 /**
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409 * This CloseClickHandler is used to remove lock on a specific Collection so
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410 * that is might be opened again.
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411 */
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412 private class CloseCollectionViewHandler implements CloseClickHandler {
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413 protected FLYS flys;
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414 protected String uuid;
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415
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416 public CloseCollectionViewHandler(FLYS flys, String uuid) {
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417 this.flys = flys;
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418 this.uuid = uuid;
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419 }
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420
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421 public void onCloseClick(CloseClientEvent event) {
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422 flys.unlockProject(uuid);
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423 workspace.removeProject(uuid);
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424 }
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425 }
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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426 }
1
0e22a19852e7 Removed useless auto generated classes and added first ui elements with i18n support.
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427 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org