Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageTwinPanel.java @ 1314:4c716bec7822

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Validate selection of pairs in wdiff, show error(s) if invalid. flys-client/trunk@2952 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 12 Oct 2011 12:42:53 +0000
parents d194bee456d3
children cfbfaadf4b6f
rev   line source
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6a2ed979dfcf Added new UIProvider "DatacageTwinPanel", pass user via UIProviderFactory.
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parents:
diff changeset
1 package de.intevation.flys.client.client.ui;
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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.Map;
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6 import java.util.Set;
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7
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8 import com.google.gwt.core.client.GWT;
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9 import com.google.gwt.user.client.rpc.AsyncCallback;
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10
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11 import com.smartgwt.client.widgets.Canvas;
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12 import com.smartgwt.client.widgets.Label;
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13 import com.smartgwt.client.widgets.layout.HLayout;
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14 import com.smartgwt.client.widgets.layout.VLayout;
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15 import com.smartgwt.client.widgets.grid.ListGrid;
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16 import com.smartgwt.client.widgets.grid.ListGridField;
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17 import com.smartgwt.client.widgets.grid.ListGridRecord;
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18 import com.smartgwt.client.widgets.events.ClickEvent;
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19
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20 import de.intevation.flys.client.shared.model.Artifact;
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21 import de.intevation.flys.client.shared.model.Data;
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22 import de.intevation.flys.client.shared.model.DataItem;
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23 import de.intevation.flys.client.shared.model.DefaultData;
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24 import de.intevation.flys.client.shared.model.DefaultDataItem;
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25 import de.intevation.flys.client.shared.model.DataList;
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26 import de.intevation.flys.client.shared.model.User;
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27
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28 import de.intevation.flys.client.client.FLYSConstants;
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29 import de.intevation.flys.client.client.event.StepForwardEvent;
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30 import de.intevation.flys.client.shared.model.Recommendation;
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31 import de.intevation.flys.client.shared.model.ToLoad;
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32 import de.intevation.flys.client.shared.model.Recommendation.Facet;
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33 import de.intevation.flys.client.shared.model.Recommendation.Filter;
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34
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35 import de.intevation.flys.client.client.services.LoadArtifactService;
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36 import de.intevation.flys.client.client.services.LoadArtifactServiceAsync;
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37 import de.intevation.flys.client.client.Config;
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38
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39 // TODO Probably better to branch off AbstractUIProvider.
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40 // TODO Merge with other datacage-widget impls.
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41 /**
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42 * Panel containing a Grid and a "next" button. The Grid is fed by a
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43 * DatacagePairWidget which is put in the input-helper area.
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44 */
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45 public class DatacageTwinPanel
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46 extends TextProvider {
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47
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48 protected static FLYSConstants MSG = GWT.create(FLYSConstants.class);
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49
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50 protected String dataName;
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51
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52 protected User user;
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53
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54 protected ListGrid differencesList;
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55
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56 LoadArtifactServiceAsync loadArtifactService = GWT.create(
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57 de.intevation.flys.client.client.services.LoadArtifactService.class);
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58
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59
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60 public DatacageTwinPanel(User user) {
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61 super();
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62 this.user = user;
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63 }
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64
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65
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66 /**
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67 * Remove first occurrence of "[" and "]" (if both do occur).
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68 * @param value String to be stripped of [] (might be null).
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69 * @return input string but with [ and ] removed, or input string if no
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70 * brackets were found.
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71 * @see StringUtil.unbracket
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72 */
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73 public static final String unbracket(String value) {
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74 // null- guard.
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75 if (value == null) return value;
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76
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77 int start = value.indexOf("[");
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78 int end = value.indexOf("]");
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79
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80 if (start < 0 || end < 0) {
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81 return value;
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82 }
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83
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84 value = value.substring(start + 1, end);
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85
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86 return value;
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87 }
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88
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89
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90 /**
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91 * Create a recommendation from a string representation of it.
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92 * @TODO describe format of input string
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93 * @param from string in format as shown above.
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94 * @return recommendation from input string.
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95 */
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96 public Recommendation createRecommendationFromString(String from) {
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97 // TODO Construct "real" filter.
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98 String[] parts = unbracket(from).split(";");
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99 Recommendation.Filter filter = new Recommendation.Filter();
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100 Recommendation.Facet facet = new Recommendation.Facet(
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101 parts[1],
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102 parts[2]);
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103
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104 List<Recommendation.Facet> facets = new ArrayList<Recommendation.Facet>
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105 ();
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106 facets.add(facet);
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107 filter.add("longitudinal_section", facets);
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108 Recommendation r = new Recommendation("waterlevel", parts[0],
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109 this.artifact.getUuid(), filter);
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110 return r;
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111 }
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112
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113
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114 /**
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115 * Add RecomendationPairRecords from input String to the ListGrid.
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116 */
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117 public void populateGridFromString(String from){
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118 // Split this string.
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119 // Create according recommendations and display strings.
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120 String[] recs = from.split("#");
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121 // TODO real name
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122 if (recs.length % 2 != 0) return;
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123 for (int i = 0; i < recs.length; i+=2) {
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124 Recommendation minuend =
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125 createRecommendationFromString(recs[i+0]);
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126 Recommendation subtrahend =
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127 createRecommendationFromString(recs[i+1]);
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128 RecommendationPairRecord pr = new RecommendationPairRecord(
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129 "A", minuend, "B", subtrahend);
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130 // This Recommendation Pair comes from the data string and was thus
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131 // already cloned.
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132 pr.setIsAlreadyLoaded(true);
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133 this.differencesList.addData(pr);
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134 }
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135 }
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136
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137
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138 @Override
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139 public Canvas create(DataList dataList) {
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140 GWT.log("createData()");
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141
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142 Canvas widget = createWidget();
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143 Canvas submit = getNextButton();
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144
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145 VLayout layout = new VLayout();
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146 HLayout helperLayout = new HLayout();
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147 helperLayout.addMember(new DatacagePairWidget(this.artifact,
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148 user, "waterlevels", differencesList));
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149
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150 layout.addMember(widget);
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151 layout.addMember(submit);
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152 layout.setMembersMargin(10);
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153 this.helperContainer.addMember(helperLayout);
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154
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155 // Find old data, if any, handle "diffids".
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156 Data data = dataList.get(0);
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157 this.dataName = data.getLabel();
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158 for (int i = 0; i < dataList.size(); i++) {
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159 if (dataList.get(i) != null && dataList.get(i).getItems() != null) {
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160 if (dataList.get(i).getItems() != null) {
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161 populateGridFromString(
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162 dataList.get(i).getItems()[0].getStringValue());
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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 return layout;
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168 }
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169
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170
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171 /**
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172 * Validates the selection.
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173 */
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174 @Override
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175 public List<String> validate() {
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176 List<String> errors = new ArrayList<String>();
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177 if (differencesList.getRecords().length == 0) {
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178 errors.add(MSG.error_no_waterlevel_pair_selected());
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179 }
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180 // Check whether minuend and subtrahend are equal.
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181 for (ListGridRecord record: differencesList.getRecords()) {
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182 RecommendationPairRecord r = (RecommendationPairRecord) record;
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183 if (r.getFirst().equals(r.getSecond())) {
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184 errors.add(MSG.error_same_waterlevels_in_pair());
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185 }
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186 }
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187
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188 return errors;
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189 }
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190
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191
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192 /**
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193 * Creates layout with grid that displays selection inside.
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194 */
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195 public Canvas createWidget() {
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196 VLayout layout = new VLayout();
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197 differencesList = new ListGrid();
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198
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199 differencesList.setCanEdit(false);
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200 differencesList.setCanRemoveRecords(true);
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201 differencesList.setCanSort(false);
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202 differencesList.setHeight(150);
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203 differencesList.setShowAllRecords(true);
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204
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205 ListGridField nameField = new ListGridField("first", "Minuend");
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diff changeset
206 ListGridField capitalField = new ListGridField("second", "Subtrahend");
1266
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diff changeset
207 differencesList.setFields(new ListGridField[] {nameField,
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208 capitalField});
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209
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210 layout.addMember(differencesList);
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211
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212 return layout;
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213 }
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214
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215
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216 /**
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217 * Validates data, does nothing if invalid, otherwise clones new selected
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218 * waterlevels and add them to collection, forward the artifact.
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219 */
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220 @Override
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diff changeset
221 public void onClick(ClickEvent e) {
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diff changeset
222 GWT.log("DatacageTwinPanel.onClick");
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diff changeset
223
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224 List<String> errors = validate();
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225 if (errors != null && !errors.isEmpty()) {
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diff changeset
226 showErrors(errors);
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diff changeset
227 return;
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228 }
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229
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diff changeset
230 Config config = Config.getInstance();
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diff changeset
231 ListGridRecord[] records = differencesList.getRecords();
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232
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233 // TODO Problem when same facet participates in two diffs.
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234 //
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235 // Resolve whether "new" ones were already cloned.
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236
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diff changeset
237 List<Recommendation> ar = new ArrayList<Recommendation>();
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diff changeset
238 List<Recommendation> all = new ArrayList<Recommendation>();
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diff changeset
239 for (ListGridRecord record : records) {
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diff changeset
240 RecommendationPairRecord r =
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diff changeset
241 (RecommendationPairRecord) record;
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242 // Do not add "old" recommendations.
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243 if (!r.isAlreadyLoaded()) {
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244 ar.add(r.getFirst());
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245 ar.add(r.getSecond());
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246 }
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247 else {
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248 all.add(r.getFirst());
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249 all.add(r.getSecond());
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250 }
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251 }
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252
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253 final Recommendation[] toClone = ar.toArray(new Recommendation[ar.size()]);
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254 final Recommendation[] toUse = all.toArray(new Recommendation[all.size()]);
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255 loadArtifactService.loadMany(
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256 this.collection,
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257 toClone,
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258 "waterlevel",
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259 config.getServerUrl(),
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260 config.getLocale(),
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261 new AsyncCallback<Artifact[]>() {
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262 public void onFailure(Throwable caught) {
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263 GWT.log("Failure of cloning with waterlevelfactory!");
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264 }
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265 public void onSuccess(Artifact[] artifacts) {
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266 GWT.log("Successfully cloned " + toClone.length +
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267 " with watelevelfactory.");
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268
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269 fireStepForwardEvent(new StepForwardEvent(
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270 getData(toClone, artifacts, toUse)));
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271 }
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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 protected Data[] getData(
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277 Recommendation[] newRecommendations,
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278 Artifact[] newArtifacts,
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279 Recommendation[] oldRecommendations)
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280 {
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281 // Construct string with info about selections.
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282 String dataItemString = "";
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283 for (int i = 0; i < newRecommendations.length; i++) {
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284 Recommendation r = newRecommendations[i];
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285 Artifact newArtifact = newArtifacts[i];
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286 String uuid = newArtifact.getUuid();
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287 r.setMasterArtifact(uuid);
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288 if (i>0) dataItemString += "#";
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289
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290 dataItemString += createDataString(uuid, r.getFilter());
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291 }
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292
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293 for (int i = 0; i < oldRecommendations.length; i++) {
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294 Recommendation r = oldRecommendations[i];
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295 String uuid = r.getIDs();
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296 if (dataItemString.length() > 0) dataItemString += "#";
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297
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298 dataItemString += createDataString(uuid, r.getFilter());
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299 }
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300
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301 DataItem item = new DefaultDataItem(dataName, dataName, dataItemString);
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302 return new Data[] { new DefaultData(
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303 dataName, null, null, new DataItem[] {item}) };
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304 }
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305
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306
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307 /**
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308 * Creates part of the String that encodes minuend or subtrahend.
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309 */
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310 protected String createDataString(String artifact, Filter filter) {
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311 Facet f = null;
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312
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313 Map<String, List<Facet>> outs = filter.getOuts();
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314 Set<Map.Entry<String, List<Facet>>> entries = outs.entrySet();
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315
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316 for (Map.Entry<String, List<Facet>> entry: entries) {
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317 List<Facet> fs = entry.getValue();
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318
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319 f = fs.get(0);
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320 if (f != null) {
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321 break;
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322 }
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323 }
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324
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325 return "[" + artifact + ";" + f.getName() + ";" + f.getIndex() + "]";
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326 }
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327 }
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328 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org