Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DefaultState.java @ 697:b972eba2ed8a facets-slt

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Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again. flys-artifacts/branches/facets-slt@2143 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 17 Jun 2011 10:40:54 +0000
parents 06689035024c
children c09c9e05ecfa
rev   line source
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b18aebd1342f Added an abstract base class DefaultState for States.
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1 package de.intevation.flys.artifacts.states;
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2
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3 import java.text.NumberFormat;
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4 import java.util.Iterator;
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5 import java.util.Locale;
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6 import java.util.Map;
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7 import java.util.List;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Element;
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13 import org.w3c.dom.Node;
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14
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15 import de.intevation.artifacts.Artifact;
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16 import de.intevation.artifacts.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.CallContext;
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18 import de.intevation.artifacts.CallMeta;
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19
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20 import de.intevation.artifacts.common.utils.XMLUtils;
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21
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22 import de.intevation.artifactdatabase.ProtocolUtils;
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23
126
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24 import de.intevation.artifactdatabase.data.StateData;
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26 import de.intevation.artifactdatabase.state.AbstractState;
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27 import de.intevation.artifactdatabase.state.Facet;
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28
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29 import de.intevation.flys.artifacts.FLYSArtifact;
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31 import de.intevation.flys.artifacts.resources.Resources;
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32
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33
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34 /**
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35 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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36 */
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37 public abstract class DefaultState extends AbstractState {
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38
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39 /** The logger that is used in this class.*/
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40 private static Logger logger = Logger.getLogger(DefaultState.class);
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41
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42 public static enum ComputeType {
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43 FEED, ADVANCE
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44 }
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46 protected StateData getData(FLYSArtifact artifact, String name) {
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47 return artifact.getData(name);
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48 }
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49
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50
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51 public Element describeStatic(
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52 Artifact artifact,
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53 Document document,
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54 Node root,
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55 CallContext context,
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56 String uuid)
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57 {
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58 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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59 document,
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60 ArtifactNamespaceContext.NAMESPACE_URI,
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61 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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62
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63 CallMeta meta = context.getMeta();
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64
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65 String label = Resources.getMsg(meta, getID(), getID());
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66 Element ui = ProtocolUtils.createArtNode(
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67 creator, "state",
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68 new String[] { "name", "uiprovider", "label" },
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69 new String[] { getID(), getUIProvider(), label });
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70
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71 Map<String, StateData> theData = getData();
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72 if (theData == null) {
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73 return ui;
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74 }
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75
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76 Iterator<String> iter = theData.keySet().iterator();
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77 FLYSArtifact flys = (FLYSArtifact) artifact;
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78
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79 while (iter.hasNext()) {
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80 String name = iter.next();
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81 StateData data = getData(flys, name);
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82
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83 String value = data != null ? (String) data.getValue() : null;
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84
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85 if (value == null) {
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86 continue;
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87 }
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88
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89 logger.debug("Append element '" + name + "' (" + value + ")");
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90
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91 Element dataElement = creator.create("data");
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92 creator.addAttr(dataElement, "name", name, true);
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93 creator.addAttr(dataElement, "type", data.getType(), true);
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94
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95 Element itemElement = creator.create("item");
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96 creator.addAttr(itemElement, "value", value, true);
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97
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98 String attrValue = "";
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99 try {
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100 // XXX A better way to format the output would be to use the
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101 // 'type' value if the data objects.
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102 double doubleVal = Double.valueOf(value);
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103 Locale l = Resources.getLocale(meta);
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104 NumberFormat nf = NumberFormat.getInstance(l);
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105
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106 attrValue = nf.format(doubleVal);
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107 }
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108 catch (NumberFormatException nfe) {
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109 attrValue = Resources.getMsg(meta, value, value);
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110 }
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111
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112 creator.addAttr(itemElement, "label", attrValue, true);
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113
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114 dataElement.appendChild(itemElement);
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115 ui.appendChild(dataElement);
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116 }
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117
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118 return ui;
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119 }
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120
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121
126
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122 public Element describe(
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123 Artifact artifact,
126
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124 Document document,
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125 Node root,
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126 CallContext context,
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127 String uuid)
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128 {
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129 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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130 document,
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131 ArtifactNamespaceContext.NAMESPACE_URI,
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132 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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133
135
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134 Element ui = null;
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135 String uiprovider = getUIProvider();
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136 if (uiprovider != null) {
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137 ui = ProtocolUtils.createArtNode(
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138 creator, "dynamic",
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139 new String[] { "uiprovider" },
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140 new String[] { uiprovider });
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141 }
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142 else {
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143 ui = ProtocolUtils.createArtNode(creator, "dynamic", null, null);
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144 }
126
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145
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146 Map<String, StateData> theData = getData();
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147 if (theData == null) {
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148 return ui;
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149 }
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150
624
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151 Iterator<String> iter = theData.keySet().iterator();
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152 FLYSArtifact flys = (FLYSArtifact) artifact;
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153
624
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154 while (iter.hasNext()) {
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155 String name = iter.next();
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156 StateData data = getData(flys, name);
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157
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158 data = data != null ? data : getData(name);
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159
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160 Element select = createData(creator, artifact, data, context);
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161
630
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162 String defValue = (String) data.getValue();
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163 String defDesc = null;
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164
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165 if (defValue != null && defValue.length() > 0) {
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166 defDesc = Resources.getMsg(
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167 context.getMeta(),
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168 defValue,
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169 defValue);
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170 }
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171
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172 if (defValue != null && defDesc != null) {
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173 creator.addAttr(select, "defaultValue", defValue, true);
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174 creator.addAttr(select, "defaultLabel", defDesc, true);
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175 }
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176
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177 Element choices = ProtocolUtils.createArtNode(
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178 creator, "choices", null, null);
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179
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180 select.appendChild(choices);
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181 ui.appendChild(select);
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182
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183 Element[] items = createItems(creator, artifact, name, context);
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184 if (items != null) {
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185 for (Element item: items) {
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186 choices.appendChild(item);
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187 }
126
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188 }
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189 }
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190
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191 return ui;
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192 }
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193
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194
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195 /**
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196 * This method creates the root node that contains the list of selectable
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197 * items.
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198 *
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199 * @param cr The ElementCreator.
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200 * @param name The name of the amount of data.
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201 *
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202 * @return the root node of the item list.
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203 */
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204 protected Element createData(
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205 XMLUtils.ElementCreator cr,
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206 Artifact artifact,
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207 StateData data,
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208 CallContext context)
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209 {
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210 Element select = ProtocolUtils.createArtNode(
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211 cr, "select", null, null);
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212 cr.addAttr(select, "name", data.getName(), true);
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213
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214 Element label = ProtocolUtils.createArtNode(
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215 cr, "label", null, null);
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216
129
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217 select.appendChild(label);
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218
126
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219 label.setTextContent(Resources.getMsg(
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220 context.getMeta(),
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221 getID(),
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222 getID()));
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223
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224 return select;
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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 * This method creates a list of items. These items represent the amount of
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230 * input data that is possible for this state.
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231 *
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232 * @param cr The ElementCreator.
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233 * @param name The name of the amount of data.
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234 *
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235 * @return a list of items.
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236 */
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237 protected Element[] createItems(
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238 XMLUtils.ElementCreator cr,
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239 Artifact artifact,
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240 String name,
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241 CallContext context
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242 ) {
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243 return null;
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244 }
135
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245
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246
322
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247 /**
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248 * This method validates the inserted data and returns true, if everything
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249 * was correct, otherwise an exception is thrown.
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250 *
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251 * @param artifact A reference to the owner artifact.
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252 * @param context The CallContext object.
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253 *
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254 * @return true, if everything was fine.
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255 */
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256 public boolean validate(Artifact artifact, CallContext context)
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257 throws IllegalArgumentException
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258 {
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259 return true;
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260 }
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261
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
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262
135
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
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263 protected String getUIProvider() {
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264 return null;
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265 }
687
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
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266
697
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267 public Object computeAdvance(
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268 FLYSArtifact artifact,
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269 String hash,
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270 CallContext context,
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271 List<Facet> facets,
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272 Object old
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273 ) {
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274 return null;
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275 }
687
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276
697
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277 public Object computeFeed(
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278 FLYSArtifact artifact,
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279 String hash,
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280 CallContext context,
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281 List<Facet> facets,
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282 Object old
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283 ) {
687
06689035024c Added a compute() method to WINFOArtifact which acts as a dispatcher for different computations. It triggers a calculation based on ComputeCallbacks that are generated by the current states.
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284 return null;
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285 }
126
b18aebd1342f Added an abstract base class DefaultState for States.
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286 }
b18aebd1342f Added an abstract base class DefaultState for States.
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287 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org