Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/FLYS.java @ 611:854312c0528c

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#21 Newly created projects cannot be opened twice. flys-client/trunk@2225 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 24 Jun 2011 09:20:22 +0000
parents 9e30c776cbef
children 4e0b73b7113b
rev   line source
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1 package de.intevation.flys.client.client;
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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.event.CollectionChangeEvent;
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29 import de.intevation.flys.client.client.event.CollectionChangeHandler;
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30 import de.intevation.flys.client.client.services.ArtifactService;
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31 import de.intevation.flys.client.client.services.ArtifactServiceAsync;
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32 import de.intevation.flys.client.client.services.DescribeCollectionService;
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33 import de.intevation.flys.client.client.services.DescribeCollectionServiceAsync;
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34 import de.intevation.flys.client.client.services.GetArtifactService;
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35 import de.intevation.flys.client.client.services.GetArtifactServiceAsync;
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36 import de.intevation.flys.client.client.services.RiverService;
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37 import de.intevation.flys.client.client.services.RiverServiceAsync;
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38 import de.intevation.flys.client.client.services.UserService;
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39 import de.intevation.flys.client.client.services.UserServiceAsync;
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40 import de.intevation.flys.client.client.ui.CollectionView;
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41 import de.intevation.flys.client.client.ui.FLYSHeader;
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42 import de.intevation.flys.client.client.ui.FLYSView;
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43 import de.intevation.flys.client.client.ui.FLYSWorkspace;
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44 import de.intevation.flys.client.client.ui.MainMenu;
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45 import de.intevation.flys.client.client.ui.ProjectList;
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46 import de.intevation.flys.client.client.ui.FLYSFooter;
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47
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48
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49 /**
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50 * Entry point classes define <code>onModuleLoad()</code>.
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51 *
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52 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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53 */
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54 public class FLYS implements EntryPoint, CollectionChangeHandler {
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56 /** The message class that provides i18n strings.*/
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57 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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58
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59 /** The UserService used to retrieve information about the current user. */
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60 protected UserServiceAsync userService = GWT.create(UserService.class);
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62 /** The RiverService used to retrieve the supported rivers of the server.*/
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63 protected RiverServiceAsync riverService = GWT.create(RiverService.class);
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65 /** The ArtifactService used to communicate with the Artifact server. */
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66 protected ArtifactServiceAsync artifactService =
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67 GWT.create(ArtifactService.class);
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69 /** The ArtifactService used to communicate with the Artifact server. */
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70 protected DescribeCollectionServiceAsync describeCollectionService =
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71 GWT.create(DescribeCollectionService.class);
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73 /** The GetArtifactService used to open an existing collection. */
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74 protected GetArtifactServiceAsync getArtifactService =
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75 GWT.create(GetArtifactService.class);
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78 /** The menu bar at the top of the application.*/
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79 protected MainMenu menu;
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81 /** The content window. It takes the whole space beneath the menu bar.*/
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82 protected FLYSView view;
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84 /** The project list that displays the projects of the user.*/
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85 protected ProjectList projectList;
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87 /** The FLYSWorkspace.*/
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88 protected FLYSWorkspace workspace;
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89
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90 /** The footer. */
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91 protected FLYSFooter footer;
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93 /** The user who is currently logged in.*/
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94 protected User currentUser;
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96 /** The list of rivers supported by the server.*/
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97 protected River[] rivers;
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99 /** This list is used to track the opened projects.*/
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100 protected List<String> openProjects;
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101
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103 /**
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104 * This is the entry point method.
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105 */
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106 public void onModuleLoad() {
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107 openProjects = new ArrayList<String>();
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108
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109 GWT.setUncaughtExceptionHandler(new GWT.UncaughtExceptionHandler() {
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110 public void onUncaughtException(Throwable e) {
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111 showWarning(e);
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112 }
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113 });
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114
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115 VLayout vertical = new VLayout();
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116 vertical.setLayoutMargin(1);
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117 vertical.setWidth100();
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118 vertical.setHeight100();
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119
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120 HLayout spacerBar = new HLayout();
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121 spacerBar.setWidth("100%");
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122 spacerBar.setHeight("20px");
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123 spacerBar.setStyleName("bgBlueLight");
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124
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125 menu = new MainMenu(this);
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126 view = new FLYSView();
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127 footer = new FLYSFooter(this);
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128
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129 vertical.addMember(new FLYSHeader());
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130 vertical.addMember(menu);
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131 vertical.addMember(spacerBar);
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132 vertical.addMember(view);
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133 vertical.addMember(footer);
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134
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135 RootPanel.get("app").add(vertical);
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136
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137 initConfiguration();
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138
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139 Config config = Config.getInstance();
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140 String url = config.getServerUrl();
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141 String locale = config.getLocale();
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142
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143 getRivers();
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144
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145 userService.getCurrentUser(url, locale, new AsyncCallback<User>() {
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146 public void onFailure(Throwable caught) {
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147 GWT.log("Could not find a logged in user.");
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148 SC.warn(MSG.getString(caught.getMessage()));
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149 }
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150
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151 public void onSuccess(User user) {
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152 GWT.log("Found a user. Set '"+ user.getName() + "'");
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153 setCurrentUser(user);
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154
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155 menu.setCurrentUser(user);
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156
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157 projectList = new ProjectList(FLYS.this, user);
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158 workspace = new FLYSWorkspace();
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159 view.setProjectList(projectList);
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160 view.setFLYSWorkspace(workspace);
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161
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162 readRivers();
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163 }
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164 });
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165 }
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166
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167
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168 public void showWarning(Throwable e) {
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169 StringBuilder sb = new StringBuilder();
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170 sb.append("<tt>");
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171
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172 if (e instanceof UmbrellaException) {
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173 UmbrellaException u = (UmbrellaException) e;
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174 Set<Throwable> throwables = u.getCauses();
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175
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176 for (Throwable t: throwables) {
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177 sb.append(t.getLocalizedMessage());
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178 sb.append("<br>");
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179 }
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180 }
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181 else {
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182 sb.append(e.getLocalizedMessage());
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183 }
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184
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185 sb.append("</tt>");
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186
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187 Window w = new Window();
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188 w.setTitle(MSG.unexpected_exception());
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189 w.setWidth(550);
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190 w.setHeight(300);
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191 w.centerInPage();
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192 w.setCanDragResize(true);
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193
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194 HTMLPane p = new HTMLPane();
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195 p.setContents(sb.toString());
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196
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197 w.addItem(p);
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198 w.show();
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199 }
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200
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201
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202 /**
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203 * This method should be called at system start. It initialzes the client
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204 * configuration.
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205 */
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206 protected void initConfiguration() {
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207 String xml = FLYSResources.INSTANCE.initialConfiguration().getText();
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208 Config.getInstance(XMLParser.parse(xml));
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209 }
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210
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211
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212 /**
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213 * Returns the user that is currently logged in.
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214 *
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215 * @return the current user.
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216 */
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217 public User getCurrentUser() {
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218 return currentUser;
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219 }
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220
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221
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222 /**
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223 * Sets the current user.
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224 */
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225 public void setCurrentUser(User user) {
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226 currentUser = user;
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227 }
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228
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229
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230 /**
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231 * Returns the project list.
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232 */
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233 public ProjectList getProjectList() {
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234 return projectList;
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235 }
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236
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237
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238 /**
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239 * Returns the projects workspace that contains all project windows.
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240 *
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241 * @return the FLYSWorkspace.
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242 */
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243 public FLYSWorkspace getWorkspace() {
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244 return workspace;
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245 }
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246
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247
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248 /**
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249 * Returns a list of rivers supported by the artifact server.
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250 *
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251 * @return a list of rivers supported by the artifact server.
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252 */
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253 public River[] getRivers() {
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254 return rivers;
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255 }
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256
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257
217
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258 protected void readRivers() {
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259 Config config = Config.getInstance();
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260 String url = config.getServerUrl();
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261 String locale = config.getLocale();
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262
217
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263 GWT.log("Fetch rivers from server '" + url + "'");
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264
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265 riverService.list(url, locale, new AsyncCallback<River[]>() {
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266 public void onFailure(Throwable caught) {
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267 GWT.log("Could not recieve a list of rivers.");
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268 SC.warn(MSG.getString(caught.getMessage()));
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269 }
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270
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271 public void onSuccess(River[] newRivers) {
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272 GWT.log("Retrieved " + newRivers.length + " new rivers.");
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273 rivers = newRivers;
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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
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279 /**
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280 * This method creates a new CollectionView and adds it to the workspace.
217
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281 * <b>NOTE</b>The user needs to be logged in and there need to at least one
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282 * river - otherwise a warning is displayed and no CollectionView is
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283 * created.
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284 */
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285 public void newProject() {
217
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286 if (getCurrentUser() == null) {
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287 SC.warn(MSG.error_not_logged_in());
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288 return;
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289 }
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290
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291 if (getRivers() == null) {
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292 SC.warn(MSG.error_no_rivers_found());
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293 readRivers();
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294
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295 return;
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296 }
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297
100
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298 CollectionView view = new CollectionView(this);
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299 workspace.addView("new-project", view);
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300
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301 view.addCollectionChangeHandler(getProjectList());
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302 }
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303
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304
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305 protected void lockProject(String uuid) {
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306 if (isProjectLocked(uuid)) {
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307 return;
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308 }
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309
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310 openProjects.add(uuid);
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311 }
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312
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313
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314 protected void unlockProject(String uuid) {
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315 openProjects.remove(uuid);
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316 }
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317
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318
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319 protected boolean isProjectLocked(String uuid) {
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320 return openProjects.contains(uuid);
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321 }
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322
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323
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324 public void openProject(final String collectionID) {
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325 if (collectionID == null) {
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326 return;
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327 }
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328
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329 if (isProjectLocked(collectionID)) {
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330 workspace.bringUp(collectionID);
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331 return;
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332 }
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333
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334 lockProject(collectionID);
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335
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336 GWT.log("Open existing project: " + collectionID);
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337
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338 Config config = Config.getInstance();
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339 final String url = config.getServerUrl();
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340 final String locale = config.getLocale();
225
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341
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342 describeCollectionService.describe(collectionID, url, locale,
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343 new AsyncCallback<Collection>() {
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344 public void onFailure(Throwable caught) {
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345 SC.warn(MSG.getString(caught.getMessage()));
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346 }
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347
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348 public void onSuccess(Collection c) {
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349 final Collection collection = c;
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350 final CollectionItem item = c.getItem(0);
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351
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352 if (item == null) {
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353 SC.warn(MSG.error_load_parameterization());
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354 return;
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355 }
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356
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357 getArtifactService.getArtifact(
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358 url,
229
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359 locale,
225
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360 item.identifier(),
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361 item.hash(),
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362 new AsyncCallback<Artifact>() {
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363 public void onFailure(Throwable caught) {
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364 unlockProject(collectionID);
225
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365 SC.warn(MSG.getString(caught.getMessage()));
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366 }
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367
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368 public void onSuccess(Artifact artifact) {
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369 CollectionView view = new CollectionView(
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370 FLYS.this, collection, artifact);
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371
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372 view.addCollectionChangeHandler(
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373 getProjectList());
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374 view.addCloseClickHandler(
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375 new CloseCollectionViewHandler(
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376 FLYS.this, collectionID));
225
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377
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378 workspace.addView(collectionID, view);
225
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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
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387 public void closeProject(String uuid) {
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388 unlockProject(uuid);
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389 workspace.destroyProject(uuid);
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390 }
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391
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392
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393 /**
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394 * Create a new Artifact.
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395 */
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396 public void newArtifact(String factory) {
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397 Config config = Config.getInstance();
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398 String url = config.getServerUrl();
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399 String locale = config.getLocale();
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400
229
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401 artifactService.create(url, locale, factory,
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402 new AsyncCallback<Artifact>() {
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403 public void onFailure(Throwable caught) {
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404 GWT.log("Could not create the new artifact.");
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405 SC.warn(MSG.getString(caught.getMessage()));
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406 }
9
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407
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408 public void onSuccess(Artifact artifact) {
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409 GWT.log("Successfully created a new artifact.");
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410 }
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411 });
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412 }
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413
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414
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415 public void onCollectionChange(CollectionChangeEvent event) {
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416 Collection oldC = event.getOldValue();
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417
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418 if (oldC == null) {
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419 Collection newC = event.getNewValue();
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420 lockProject(newC.identifier());
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421 }
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422 }
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423
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424
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425
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426 /**
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427 * This CloseClickHandler is used to remove lock on a specific Collection so
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428 * that is might be opened again.
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429 */
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430 public class CloseCollectionViewHandler implements CloseClickHandler {
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431 protected FLYS flys;
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432 protected String uuid;
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433
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434 public CloseCollectionViewHandler(FLYS flys, String uuid) {
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435 this.flys = flys;
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436 this.uuid = uuid;
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437 }
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438
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439 public void onCloseClick(CloseClientEvent event) {
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440 flys.closeProject(uuid);
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441 }
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442 }
0
4e8be5e7855f Start of a GWT based client for FLYS-3.0
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443 }
1
0e22a19852e7 Removed useless auto generated classes and added first ui elements with i18n support.
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444 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org