Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/DefaultState.java @ 690:3481cd37e609 facets-slt

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Use enums to dispatch computeFeed() and computeAdvance(). flys-artifacts/branches/facets-slt@2130 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 16 Jun 2011 08:57:05 +0000
parents 06689035024c
children b972eba2ed8a
rev   line source
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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
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8 import org.apache.log4j.Logger;
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9
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.Element;
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12 import org.w3c.dom.Node;
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13
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14 import de.intevation.artifacts.Artifact;
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15 import de.intevation.artifacts.ArtifactNamespaceContext;
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16 import de.intevation.artifacts.CallContext;
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17 import de.intevation.artifacts.CallMeta;
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18
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19 import de.intevation.artifacts.common.utils.XMLUtils;
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20
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21 import de.intevation.artifactdatabase.ProtocolUtils;
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22 import de.intevation.artifactdatabase.data.StateData;
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23 import de.intevation.artifactdatabase.state.AbstractState;
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24
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25 import de.intevation.flys.artifacts.FLYSArtifact;
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26 import de.intevation.flys.artifacts.model.ComputeCallback;
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27 import de.intevation.flys.artifacts.resources.Resources;
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29
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30 /**
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31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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32 */
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33 public abstract class DefaultState extends AbstractState {
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34
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35 /** The logger that is used in this class.*/
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36 private static Logger logger = Logger.getLogger(DefaultState.class);
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39 protected StateData getData(FLYSArtifact artifact, String name) {
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40 return artifact.getData(name);
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41 }
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42
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43
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44 public Element describeStatic(
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45 Artifact artifact,
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46 Document document,
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47 Node root,
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48 CallContext context,
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49 String uuid)
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50 {
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51 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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52 document,
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53 ArtifactNamespaceContext.NAMESPACE_URI,
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54 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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55
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56 CallMeta meta = context.getMeta();
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57
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58 String label = Resources.getMsg(meta, getID(), getID());
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59 Element ui = ProtocolUtils.createArtNode(
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60 creator, "state",
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61 new String[] { "name", "uiprovider", "label" },
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62 new String[] { getID(), getUIProvider(), label });
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63
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64 Map<String, StateData> theData = getData();
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65 if (theData == null) {
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66 return ui;
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67 }
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69 Iterator<String> iter = theData.keySet().iterator();
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70 FLYSArtifact flys = (FLYSArtifact) artifact;
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71
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72 while (iter.hasNext()) {
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73 String name = iter.next();
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74 StateData data = getData(flys, name);
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75
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76 String value = data != null ? (String) data.getValue() : null;
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77
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78 if (value == null) {
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79 continue;
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80 }
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81
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82 logger.debug("Append element '" + name + "' (" + value + ")");
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83
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84 Element dataElement = creator.create("data");
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85 creator.addAttr(dataElement, "name", name, true);
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86 creator.addAttr(dataElement, "type", data.getType(), true);
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87
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88 Element itemElement = creator.create("item");
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89 creator.addAttr(itemElement, "value", value, true);
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90
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91 String attrValue = "";
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92 try {
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93 // XXX A better way to format the output would be to use the
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94 // 'type' value if the data objects.
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95 double doubleVal = Double.valueOf(value);
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96 Locale l = Resources.getLocale(meta);
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97 NumberFormat nf = NumberFormat.getInstance(l);
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98
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99 attrValue = nf.format(doubleVal);
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100 }
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101 catch (NumberFormatException nfe) {
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102 attrValue = Resources.getMsg(meta, value, value);
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103 }
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104
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105 creator.addAttr(itemElement, "label", attrValue, true);
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106
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107 dataElement.appendChild(itemElement);
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108 ui.appendChild(dataElement);
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109 }
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110
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111 return ui;
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112 }
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113
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114
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115 public Element describe(
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116 Artifact artifact,
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117 Document document,
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118 Node root,
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119 CallContext context,
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120 String uuid)
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121 {
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122 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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123 document,
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124 ArtifactNamespaceContext.NAMESPACE_URI,
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125 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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126
135
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127 Element ui = null;
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128 String uiprovider = getUIProvider();
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129 if (uiprovider != null) {
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130 ui = ProtocolUtils.createArtNode(
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131 creator, "dynamic",
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132 new String[] { "uiprovider" },
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133 new String[] { uiprovider });
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134 }
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135 else {
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136 ui = ProtocolUtils.createArtNode(creator, "dynamic", null, null);
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137 }
126
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138
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139 Map<String, StateData> theData = getData();
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140 if (theData == null) {
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141 return ui;
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142 }
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143
624
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144 Iterator<String> iter = theData.keySet().iterator();
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145 FLYSArtifact flys = (FLYSArtifact) artifact;
126
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146
624
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147 while (iter.hasNext()) {
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148 String name = iter.next();
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149 StateData data = getData(flys, name);
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150
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151 data = data != null ? data : getData(name);
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152
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153 Element select = createData(creator, artifact, data, context);
126
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154
630
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155 String defValue = (String) data.getValue();
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156 String defDesc = null;
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157
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158 if (defValue != null && defValue.length() > 0) {
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159 defDesc = Resources.getMsg(
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160 context.getMeta(),
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161 defValue,
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162 defValue);
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163 }
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164
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165 if (defValue != null && defDesc != null) {
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166 creator.addAttr(select, "defaultValue", defValue, true);
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167 creator.addAttr(select, "defaultLabel", defDesc, true);
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168 }
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169
126
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170 Element choices = ProtocolUtils.createArtNode(
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171 creator, "choices", null, null);
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172
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173 select.appendChild(choices);
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174 ui.appendChild(select);
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175
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176 Element[] items = createItems(creator, artifact, name, context);
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177 if (items != null) {
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178 for (Element item: items) {
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179 choices.appendChild(item);
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180 }
126
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181 }
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182 }
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183
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184 return ui;
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185 }
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186
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187
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188 /**
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189 * This method creates the root node that contains the list of selectable
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190 * items.
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191 *
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192 * @param cr The ElementCreator.
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193 * @param name The name of the amount of data.
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194 *
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195 * @return the root node of the item list.
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196 */
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197 protected Element createData(
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198 XMLUtils.ElementCreator cr,
313
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199 Artifact artifact,
126
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200 StateData data,
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201 CallContext context)
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202 {
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203 Element select = ProtocolUtils.createArtNode(
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204 cr, "select", null, null);
129
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205 cr.addAttr(select, "name", data.getName(), true);
126
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206
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207 Element label = ProtocolUtils.createArtNode(
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208 cr, "label", null, null);
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209
129
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210 select.appendChild(label);
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211
126
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212 label.setTextContent(Resources.getMsg(
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213 context.getMeta(),
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214 getID(),
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215 getID()));
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216
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217 return select;
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218 }
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219
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220
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221 /**
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222 * This method creates a list of items. These items represent the amount of
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223 * input data that is possible for this state.
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224 *
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225 * @param cr The ElementCreator.
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226 * @param name The name of the amount of data.
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227 *
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228 * @return a list of items.
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229 */
660
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230 protected Element[] createItems(
126
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231 XMLUtils.ElementCreator cr,
313
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232 Artifact artifact,
126
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233 String name,
660
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234 CallContext context
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235 ) {
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236 return null;
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237 }
135
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238
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239
322
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240 /**
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241 * This method validates the inserted data and returns true, if everything
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242 * was correct, otherwise an exception is thrown.
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243 *
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244 * @param artifact A reference to the owner artifact.
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245 * @param context The CallContext object.
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246 *
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247 * @return true, if everything was fine.
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248 */
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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249 public boolean validate(Artifact artifact, CallContext context)
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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250 throws IllegalArgumentException
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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251 {
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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252 return true;
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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253 }
448d0dc64357 The inserted ranges (distance and WQ ranges) are validated in the feed() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 313
diff changeset
254
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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255
135
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 134
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256 protected String getUIProvider() {
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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257 return null;
2d6e02787d00 Added a method to retrieve the UIProvider for a state.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 134
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258 }
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: 686
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259
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: 686
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260
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: 686
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261 public ComputeCallback createComputeCallback(
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: 686
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262 String hash, FLYSArtifact flys)
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: 686
diff changeset
263 {
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: 686
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264 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: 686
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265 }
126
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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266 }
b18aebd1342f Added an abstract base class DefaultState for States.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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267 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org