Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DefaultState.java @ 2017:e384d78ff78b

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Cosmetics. flys-artifacts/trunk@3472 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Tue, 20 Dec 2011 06:26:25 +0000
parents 61667c3a0003
children 19518116a49a
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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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 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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22
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23 import de.intevation.artifactdatabase.ProtocolUtils;
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25 import de.intevation.artifactdatabase.data.DefaultStateData;
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26 import de.intevation.artifactdatabase.data.StateData;
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28 import de.intevation.artifactdatabase.state.AbstractState;
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29 import de.intevation.artifactdatabase.state.Facet;
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31 import de.intevation.flys.artifacts.FLYSArtifact;
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33 import de.intevation.flys.artifacts.resources.Resources;
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34
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35
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36 /**
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37 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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38 */
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39 public abstract class DefaultState extends AbstractState {
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40
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41 /** The logger that is used in this class. */
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42 private static Logger logger = Logger.getLogger(DefaultState.class);
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43
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45 /** Determines, if the DESCRIBE document should contain default values or
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46 * not. */
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47 public static final boolean USE_DEFAULTS =
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48 Boolean.getBoolean("flys.use.default.values");
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50 /** The three possible compute types. */
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51 public static enum ComputeType {
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52 FEED, ADVANCE, INIT
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53 }
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54
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56 protected StateData getData(FLYSArtifact artifact, String name) {
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57 return artifact.getData(name);
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58 }
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59
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60
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61 /**
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62 * Append to a node and return xml description relevant for gui.
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63 */
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64 public Element describeStatic(
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65 Artifact artifact,
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66 Document document,
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67 Node root,
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68 CallContext context,
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69 String uuid)
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70 {
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71 ElementCreator creator = new ElementCreator(
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72 document,
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73 ArtifactNamespaceContext.NAMESPACE_URI,
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74 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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75
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76 CallMeta meta = context.getMeta();
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77
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78 String label = Resources.getMsg(meta, getID(), getID());
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79 Element ui = ProtocolUtils.createArtNode(
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80 creator, "state",
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81 new String[] { "name", "uiprovider", "label" },
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82 new String[] { getID(), getUIProvider(), label });
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83
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84 Map<String, StateData> theData = getData();
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85 if (theData == null) {
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86 return ui;
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87 }
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88
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89 Iterator<String> iter = theData.keySet().iterator();
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90 FLYSArtifact flys = (FLYSArtifact) artifact;
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91
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92 while (iter.hasNext()) {
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93 String name = iter.next();
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94 appendStaticData(flys, context, creator, ui, name);
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95 }
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96
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97 return ui;
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98 }
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99
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100
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101 protected void appendStaticData(
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102 FLYSArtifact flys,
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103 CallContext context,
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104 ElementCreator cr,
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105 Element ui,
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106 String name
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107 ) {
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108 StateData data = getData(flys, name);
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109 String value = (data != null) ? (String) data.getValue() : null;
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110
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111 if (value == null) {
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112 return;
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113 }
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114
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115 logger.debug("Append element '" + name + "' (" + value + ")");
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116
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diff changeset
117 Element e = createStaticData(
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118 flys, cr, context, name, value, data.getType());
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119
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120 ui.appendChild(e);
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121
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122 }
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123
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124
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125 /**
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126 * Creates a <i>data</i> element used in the static part of the DESCRIBE
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127 * document.
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128 *
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129 * @param creator The ElementCreator that is used to build new Elements.
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130 * @param meta The CallMeta object used for i18n.
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131 * @param name The name of the data item.
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132 * @param value The value as string.
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133 *
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134 * @return an Element.
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135 */
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136 protected Element createStaticData(
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137 FLYSArtifact flys,
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138 ElementCreator creator,
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139 CallContext cc,
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140 String name,
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141 String value,
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142 String type
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143 ) {
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144 CallMeta meta = cc.getMeta();
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145
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146 Element dataElement = creator.create("data");
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147 creator.addAttr(dataElement, "name", name, true);
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148 creator.addAttr(dataElement, "type", type, true);
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149
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150 Element itemElement = creator.create("item");
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151 creator.addAttr(itemElement, "value", value, true);
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152
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153 String attrValue = "";
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154 try {
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155 // XXX A better way to format the output would be to use the
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156 // 'type' value of the data objects.
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157 double doubleVal = Double.valueOf(value);
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158 Locale l = Resources.getLocale(meta);
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159 NumberFormat nf = NumberFormat.getInstance(l);
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160
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161 attrValue = nf.format(doubleVal);
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162 }
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163 catch (NumberFormatException nfe) {
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164 attrValue = Resources.getMsg(meta, value, value);
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165 }
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166
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167 creator.addAttr(itemElement, "label", attrValue, true);
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168 dataElement.appendChild(itemElement);
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169
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170 return dataElement;
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171 }
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172
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173
126
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174 public Element describe(
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175 Artifact artifact,
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176 Document document,
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177 Node root,
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178 CallContext context,
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179 String uuid)
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180 {
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181 ElementCreator creator = new ElementCreator(
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182 document,
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183 ArtifactNamespaceContext.NAMESPACE_URI,
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184 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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185
135
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186 Element ui = null;
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187 String uiprovider = getUIProvider();
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188 if (uiprovider != null) {
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189 ui = ProtocolUtils.createArtNode(
135
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190 creator, "dynamic",
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191 new String[] { "uiprovider" },
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192 new String[] { uiprovider });
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193 }
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194 else {
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195 ui = ProtocolUtils.createArtNode(creator, "dynamic", null, null);
135
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196 }
126
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197
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198 Map<String, StateData> theData = getData();
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199 if (theData == null) {
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200 return ui;
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201 }
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202
624
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203 Iterator<String> iter = theData.keySet().iterator();
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204 FLYSArtifact flys = (FLYSArtifact) artifact;
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205
624
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diff changeset
206 while (iter.hasNext()) {
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207 String name = iter.next();
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208 StateData data = getData(flys, name);
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209
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210 data = data != null ? data : getData(name);
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211
313
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212 Element select = createData(creator, artifact, data, context);
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213
2015
61667c3a0003 Disabled default values in Artifact's DESCRIBE document - added a system property to re-enable those default values.
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214 if (USE_DEFAULTS) {
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215 String defValue = (String) data.getValue();
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216 String defDesc = null;
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40d3039f85ac ISSUE-40 (part I/II) Write values that the user had former selected / inserted into DESCRIBE document to preselect such data in the UI.
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217
2015
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218 if (defValue != null && defValue.length() > 0) {
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219 defDesc = Resources.getMsg(
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220 context.getMeta(),
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221 defValue,
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222 defValue);
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223 }
630
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224
2015
61667c3a0003 Disabled default values in Artifact's DESCRIBE document - added a system property to re-enable those default values.
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225 if (defValue != null && defDesc != null) {
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226 creator.addAttr(select, "defaultValue", defValue, true);
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227 creator.addAttr(select, "defaultLabel", defDesc, true);
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228 }
630
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229 }
40d3039f85ac ISSUE-40 (part I/II) Write values that the user had former selected / inserted into DESCRIBE document to preselect such data in the UI.
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230
126
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231 Element choices = ProtocolUtils.createArtNode(
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232 creator, "choices", null, null);
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233
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234 select.appendChild(choices);
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235 ui.appendChild(select);
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236
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237 Element[] items = createItems(creator, artifact, name, context);
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238 if (items != null) {
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239 for (Element item: items) {
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240 choices.appendChild(item);
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241 }
126
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242 }
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243 }
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244
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245 return ui;
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246 }
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247
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248
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249 /**
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250 * This method creates the root node that contains the list of selectable
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251 * items.
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252 *
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253 * @param cr The ElementCreator.
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254 * @param name The name of the amount of data.
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255 *
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256 * @return the root node of the item list.
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257 */
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258 protected Element createData(
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259 ElementCreator cr,
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260 Artifact artifact,
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261 StateData data,
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262 CallContext context)
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263 {
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264 Element select = ProtocolUtils.createArtNode(
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265 cr, "select", null, null);
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266 cr.addAttr(select, "name", data.getName(), true);
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267
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268 Element label = ProtocolUtils.createArtNode(
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269 cr, "label", null, null);
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270
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271 select.appendChild(label);
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272
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273 label.setTextContent(Resources.getMsg(
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274 context.getMeta(),
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275 getID(),
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276 getID()));
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277
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278 return select;
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279 }
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280
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281
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282 /**
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283 * This method creates a list of items. These items represent the amount of
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284 * input data that is possible for this state.
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285 *
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286 * @param cr The ElementCreator.
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287 * @param name The name of the amount of data.
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288 *
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289 * @return a list of items.
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290 */
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291 protected Element[] createItems(
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292 ElementCreator cr,
313
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293 Artifact artifact,
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294 String name,
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295 CallContext context
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296 ) {
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297 return null;
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298 }
135
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299
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300
322
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301 /**
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302 * This method is used to create an <i>item</i> Element that contains two
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303 * further elements <i>label</i> and <i>value</i>. The label and value
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304 * elements both have text nodes.
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305 *
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306 * @param cr The ElementCreator used to build new Elements.
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307 * @param obj This implementation awaits a String array with [0] = label and
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308 * [1] = value.
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309 *
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310 * @return an Element.
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311 */
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312 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
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313 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
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314 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
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315 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
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316
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317 String[] arr = (String[]) obj;
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318
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319 label.setTextContent(arr[0]);
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320 value.setTextContent(arr[1]);
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321
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322 item.appendChild(label);
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323 item.appendChild(value);
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324
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325 return item;
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326 }
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327
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328
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329 /**
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330 * This method transform a given value into a StateData object.
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331 *
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332 * @param flys The FLYSArtifact.
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333 * @param name The name of the data object.
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334 * @param val The value of the data object.
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335 *
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336 * @return a StateData object with <i>name</i> and <i>val</i>ue.
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337 */
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338 public StateData transform(
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339 FLYSArtifact flys,
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340 CallContext cc,
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341 String name,
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342 String val
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343 ) {
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344 logger.debug("Transform data ('" + name + "','" + val + "')");
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345 return new DefaultStateData(name, null, null, val);
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346 }
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347
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348
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349 /**
322
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350 * This method validates the inserted data and returns true, if everything
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351 * was correct, otherwise an exception is thrown.
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352 *
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diff changeset
353 * @param artifact A reference to the owner artifact.
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
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354 *
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
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355 * @return true, if everything was fine.
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
356 */
1050
eccf966fb677 State engine: Removed CallContext from state validation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1029
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357 public boolean validate(Artifact artifact)
322
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
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358 throws IllegalArgumentException
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
359 {
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
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360 return true;
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
361 }
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
362
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
363
1691
17648043429f Cosmetics, docs, annotations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1180
diff changeset
364 /**
17648043429f Cosmetics, docs, annotations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1180
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365 * Returns which UIProvider shall be used to aid user input.
17648043429f Cosmetics, docs, annotations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1180
diff changeset
366 */
135
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 134
diff changeset
367 protected String getUIProvider() {
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 134
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368 return null;
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 134
diff changeset
369 }
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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
diff changeset
370
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1050
diff changeset
371
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
372 public Object computeAdvance(
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
373 FLYSArtifact artifact,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
374 String hash,
742
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 697
diff changeset
375 CallContext context,
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 697
diff changeset
376 List<Facet> facets,
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
377 Object old
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
378 ) {
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
379 return null;
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
380 }
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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
diff changeset
381
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1050
diff changeset
382
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
383 public Object computeFeed(
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
384 FLYSArtifact artifact,
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
385 String hash,
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
386 CallContext context,
742
c09c9e05ecfa Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 697
diff changeset
387 List<Facet> facets,
697
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
388 Object old
b972eba2ed8a Removed ComputeCallback because this was thought too complicated. Fixed issue with facets not be re-generated if same state is entered again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 687
diff changeset
389 ) {
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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
diff changeset
390 return null;
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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 669
diff changeset
391 }
941
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
392
1136
8da5f5a9ed3c Cosmetics, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1050
diff changeset
393
941
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
394 public Object computeInit(
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
395 FLYSArtifact artifact,
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
396 String hash,
958
ae198bef4ba0 Added configurations for river WMSe (currently for Saar, Mosel, Elbe).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 942
diff changeset
397 Object context,
941
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
398 CallMeta meta,
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
399 List<Facet> facets)
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
400 {
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
401 return null;
1b509e4cf99b Added a computeInit() method to intialize data/facets after creating new artifacts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 742
diff changeset
402 }
126
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
403 }
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
404 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org