Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/FLYSArtifact.java @ 356:22e9574c8b1b

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Added a new Transition to compare values. flys-artifacts/trunk@1763 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 28 Apr 2011 11:22:45 +0000
parents d97982627596
children d79a51fc4f1d
rev   line source
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1 package de.intevation.flys.artifacts;
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2
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3 import java.util.HashMap;
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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 import java.util.Vector;
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8
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9 import javax.xml.xpath.XPathConstants;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import org.w3c.dom.Document;
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14 import org.w3c.dom.Element;
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15 import org.w3c.dom.Node;
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16 import org.w3c.dom.NodeList;
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17
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18 import de.intevation.artifacts.ArtifactFactory;
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19 import de.intevation.artifacts.CallContext;
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20
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21 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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22 import de.intevation.artifacts.common.utils.XMLUtils;
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23
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24 import de.intevation.artifactdatabase.DefaultArtifact;
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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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27 import de.intevation.artifactdatabase.state.State;
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28 import de.intevation.artifactdatabase.state.StateEngine;
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29 import de.intevation.artifactdatabase.transition.TransitionEngine;
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30
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31 import de.intevation.flys.model.Gauge;
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32 import de.intevation.flys.model.River;
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33
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34 import de.intevation.flys.artifacts.context.FLYSContext;
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35 import de.intevation.flys.artifacts.model.RiverFactory;
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36 import de.intevation.flys.artifacts.states.DefaultState;
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38
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39 /**
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40 * The defaul FLYS artifact.
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41 *
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42 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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43 */
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44 public abstract class FLYSArtifact extends DefaultArtifact {
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45
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46 /** The logger that is used in this artifact.*/
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47 private static Logger logger = Logger.getLogger(FLYSArtifact.class);
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48
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49
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50 /** The XPath that points to the input data elements of the FEED document.*/
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51 public static final String XPATH_FEED_INPUT =
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52 "/art:action/art:data/art:input";
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53
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54 /** The XPath that points to the name of the target state of ADVANCE.*/
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55 public static final String XPATH_ADVANCE_TARGET =
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56 "/art:action/art:target/@art:name";
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57
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58 /** The constant string that shows that an operation was successful.*/
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59 public static final String OPERATION_SUCCESSFUL = "SUCCESS";
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60
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61 /** The constant string that shows that an operation failed.*/
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62 public static final String OPERATION_FAILED = "FAILURE";
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65 /** The identifier of the current state. */
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66 protected String currentStateId;
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67
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68 /** The identifiers of previous states on a stack.*/
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69 protected Vector<String> previousStateIds;
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71 /** The name of the artifact.*/
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72 protected String name;
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73
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74 /** The data that have been inserted into this artifact.*/
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75 protected Map<String, StateData> data;
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76
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78 /**
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79 * The default constructor that creates an empty FLYSArtifact.
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80 */
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81 public FLYSArtifact() {
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82 data = new HashMap<String, StateData>();
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83 previousStateIds = new Vector<String>();
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84 }
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85
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86
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87 /**
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88 * Returns the name of the concrete artifact.
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89 *
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90 * @return the name of the concrete artifact.
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91 */
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92 public abstract String getName();
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93
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94
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95 /**
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96 * Returns the FLYSContext from context object.
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97 *
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98 * @param context The CallContext or the FLYSContext.
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99 *
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100 * @return the FLYSContext.
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101 */
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102 protected FLYSContext getFlysContext(Object context) {
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103 return context instanceof FLYSContext
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104 ? (FLYSContext) context
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105 : (FLYSContext) ((CallContext) context).globalContext();
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106 }
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107
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108
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109 /**
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110 * Initialize the artifact and insert new data if <code>data</code> contains
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111 * information necessary for this artifact.
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112 *
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113 * @param identifier The UUID.
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114 * @param factory The factory that is used to create this artifact.
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115 * @param context The CallContext.
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116 * @param data Some optional data.
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117 */
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118 @Override
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119 public void setup(
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120 String identifier,
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121 ArtifactFactory factory,
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122 Object context,
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123 Document data)
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124 {
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125 logger.debug("Setup this artifact with the uuid: " + identifier);
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126
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127 super.setup(identifier, factory, context, data);
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128
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129 FLYSContext flysContext = (FLYSContext) context;
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130 StateEngine engine = (StateEngine) flysContext.get(
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131 FLYSContext.STATE_ENGINE_KEY);
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132
121
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133 String name = getName();
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134
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135 logger.debug("Set initial state for artifact '" + name + "'");
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136 List<State> states = engine.getStates(name);
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137
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138 setCurrentState(states.get(0));
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139 }
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140
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141
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142 /**
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143 * Insert new data included in <code>input</code> into the current state.
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144 *
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145 * @param target XML document that contains new data.
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146 * @param context The CallContext.
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147 *
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148 * @return a document that contains a SUCCESS or FAILURE message.
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149 */
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150 @Override
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151 public Document feed(Document target, CallContext context) {
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152 logger.info("FLYSArtifact.feed()");
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153
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154 Document doc = XMLUtils.newDocument();
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155
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156 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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157 doc,
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158 ArtifactNamespaceContext.NAMESPACE_URI,
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159 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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160
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161 Element result = creator.create("result");
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162 doc.appendChild(result);
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163
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164 try {
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165 saveData(target, XPATH_FEED_INPUT, context);
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166 return describe(target, context);
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167 }
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168 catch (IllegalArgumentException iae) {
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169 creator.addAttr(result, "type", OPERATION_FAILED, true);
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170
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171 result.setTextContent(iae.getMessage());
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172 }
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173
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174 return doc;
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175 }
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176
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177
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178 /**
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179 * This method handles request for changing the current state of an
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180 * artifact. It is possible to step forward or backward.
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181 *
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182 * @param target The incoming ADVANCE document.
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183 * @param context The CallContext.
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184 *
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185 * @return a document that contains a SUCCESS or FAILURE message.
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186 */
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187 public Document advance(Document target, CallContext context) {
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188 Document doc = XMLUtils.newDocument();
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189
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190 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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191 doc,
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192 ArtifactNamespaceContext.NAMESPACE_URI,
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193 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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194
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195 Element result = ec.create("result");
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196
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197 String targetState = XMLUtils.xpathString(
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198 target, XPATH_ADVANCE_TARGET, ArtifactNamespaceContext.INSTANCE);
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199
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200 logger.info("FLYSArtifact.advance() to '" + targetState + "'");
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201
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202 if (isStateReachable(targetState, context)) {
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203 logger.info("Advance: Step forward");
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204
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205 Vector<String> prev = getPreviousStateIds();
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206 prev.add(getCurrentStateId());
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207
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208 setCurrentStateId(targetState);
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209
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210 return describe(target, context);
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211 }
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212 else if (isPreviousState(targetState, context)) {
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213 logger.info("Advance: Step back to");
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214
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215 Vector<String> prevs = getPreviousStateIds();
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216 int targetIdx = prevs.indexOf(targetState);
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217 int start = prevs.size() - 1;
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218
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219 for (int i = start; i >= targetIdx; i--) {
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220 String prev = prevs.get(i);
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221 logger.debug("Remove state id '" + prev + "'");
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222 prevs.remove(prev);
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223 }
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224
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225 setCurrentStateId(targetState);
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226
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227 return describe(target, context);
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228 }
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229
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230 logger.warn("Advance: Cannot advance to '" + targetState + "'");
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231 ec.addAttr(result, "type", OPERATION_FAILED, true);
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232
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233 doc.appendChild(result);
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234
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235 return doc;
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236 }
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237
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238
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239 /**
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240 * Returns the identifier of the current state.
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241 *
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242 * @return the identifier of the current state.
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243 */
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244 protected String getCurrentStateId() {
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245 return currentStateId;
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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 * Sets the identifier of the current state.
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251 *
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252 * @param id the identifier of a state.
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253 */
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254 protected void setCurrentStateId(String id) {
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255 currentStateId = id;
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256 }
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257
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258
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259 /**
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260 * Set the current state of this artifact. <b>NOTE</b>We don't store the
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261 * State object itself - which is not necessary - but its identifier. So
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262 * this method will just call the setCurrentStateId() method with the
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263 * identifier of <i>state</i>.
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264 *
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265 * @param state The new current state.
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266 */
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267 protected void setCurrentState(State state) {
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268 setCurrentStateId(state.getID());
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269 }
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270
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271
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272 /**
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273 * Returns the current state of the artifact.
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274 *
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275 * @return the current State of the artifact.
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276 */
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277 protected State getCurrentState(Object context) {
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278 FLYSContext flysContext = getFlysContext(context);
119
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279 StateEngine engine = (StateEngine) flysContext.get(
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280 FLYSContext.STATE_ENGINE_KEY);
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281
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282 return engine.getState(getCurrentStateId());
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283 }
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284
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285
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286 /**
122
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287 * Returns the vector of previous state identifiers.
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288 *
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289 * @return the vector of previous state identifiers.
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290 */
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291 protected Vector<String> getPreviousStateIds() {
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292 return previousStateIds;
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293 }
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294
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295
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296 /**
121
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297 * Adds a new StateData item to the data pool of this artifact.
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298 *
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299 * @param name the name of the data object.
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300 * @param data the data object itself.
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301 */
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302 protected void addData(String name, StateData data) {
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303 this.data.put(name, data);
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304 }
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305
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306
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307 /**
122
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308 * This method returns a specific StateData object that is stored in the
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309 * data pool of this artifact.
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310 *
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311 * @param name The name of the data object.
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312 *
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313 * @return the StateData object if existing, otherwise null.
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314 */
298
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315 public StateData getData(String name) {
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316 return data.get(name);
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317 }
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318
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319
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320 /**
121
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321 * This method stores the data that is contained in the FEED document.
119
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322 *
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323 * @param feed The FEED document.
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324 * @param xpath The XPath that points to the data nodes.
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325 */
322
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326 public void saveData(Document feed, String xpath, CallContext context)
121
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327 throws IllegalArgumentException
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328 {
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329 if (feed == null || xpath == null || xpath.length() == 0) {
325
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330 throw new IllegalArgumentException("error_feed_no_data");
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331 }
119
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332
121
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333 NodeList nodes = (NodeList) XMLUtils.xpath(
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334 feed,
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335 xpath,
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336 XPathConstants.NODESET,
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337 ArtifactNamespaceContext.INSTANCE);
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338
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339 if (nodes == null || nodes.getLength() == 0) {
325
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340 throw new IllegalArgumentException("error_feed_no_data");
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341 }
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342
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343 int count = nodes.getLength();
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344 logger.debug("Try to save " + count + " data items.");
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345
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346 for (int i = 0; i < count; i++) {
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347 Node node = nodes.item(i);
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348
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349 String name = XMLUtils.xpathString(
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350 node, "@art:name", ArtifactNamespaceContext.INSTANCE);
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351 String value = XMLUtils.xpathString(
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352 node, "@art:value", ArtifactNamespaceContext.INSTANCE);
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353
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354 if (name != null && value != null) {
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355 logger.debug("Save data item for '" + name + "' : " + value);
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356
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357 addData(name, new DefaultStateData(name, null, null, value));
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358 }
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359 }
322
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360
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361 State current = getCurrentState(context);
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362 DefaultState toValidate = (DefaultState) fillState(current);
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363
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364 toValidate.validate(this, context);
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365 }
122
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366
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367
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368 /**
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369 * This method fills a state object with the data that have been inserted to
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370 * this artifact. This is necessary to use the isStateReachable() method,
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371 * because the Transitions need to know about the inserted data.
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372 *
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373 * @param state The state that needs to be filled with data.
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374 *
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375 * @return the filled state.
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376 */
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377 protected State fillState(State state) {
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diff changeset
378 Map<String, StateData> stateData = state.getData();
140
43f03f6047b9 Implemented the step-back part of the advance() operation.
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diff changeset
379
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
380 if (stateData == null) {
43f03f6047b9 Implemented the step-back part of the advance() operation.
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diff changeset
381 return state;
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
382 }
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
383
122
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
384 Set<String> keys = stateData.keySet();
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
385
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
386 for (String key: keys) {
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
387 StateData tmp = getData(key);
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
388
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 121
diff changeset
389 if (tmp != null) {
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
390 StateData data = stateData.get(key);
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
391 data.setValue(tmp.getValue());
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
392 }
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
393 }
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
394
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
395 return state;
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
396 }
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
397
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 121
diff changeset
398
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
399 /**
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
400 * Determines if the state with the identifier <i>stateId</i> is reachable
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
401 * from the current state. The determination itself takes place in the
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
402 * TransitionEngine.
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
403 *
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
404 * @param stateId The identifier of a state.
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
405 * @param context The context object.
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
406 *
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
407 * @return true, if the state specified by <i>stateId</i> is reacahble,
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
408 * otherwise false.
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 121
diff changeset
409 */
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
410 protected boolean isStateReachable(String stateId, Object context) {
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
411 logger.debug("Determine if the state '" + stateId + "' is reachable.");
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
412
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
413 FLYSContext flysContext = getFlysContext(context);
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
414
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
415 State currentState = fillState(getCurrentState(context));
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
416 StateEngine sEngine = (StateEngine) flysContext.get(
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
417 FLYSContext.STATE_ENGINE_KEY);
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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diff changeset
418
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
419 TransitionEngine tEngine = (TransitionEngine) flysContext.get(
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
420 FLYSContext.TRANSITION_ENGINE_KEY);
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
421
355
d97982627596 Bugfixes: Adapted a broken method call of TransitionEngine.isStateReachable() and added the outputs of a current state to the DESCRIBE.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 325
diff changeset
422 return tEngine.isStateReachable(this, stateId, currentState, sEngine);
122
d3b8b0b1d010 Implemented the step-forward part of the advance operation.
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parents: 121
diff changeset
423 }
140
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
424
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
425
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
426 /**
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
427 * Determines if the state with the identifier <i>stateId</i> is a previous
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
428 * state of the current state.
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
429 *
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
430 * @param stateId The target state identifier.
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
431 * @param context The context object.
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
432 */
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
433 protected boolean isPreviousState(String stateId, Object context) {
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
434 logger.debug("Determine if the state '" + stateId + "' is old.");
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
435
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
436 Vector<String> prevs = getPreviousStateIds();
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
437 if (prevs.contains(stateId)) {
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
438 return true;
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
439 }
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
440
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
441 return false;
43f03f6047b9 Implemented the step-back part of the advance() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 123
diff changeset
442 }
317
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
443
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
444
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
445 /**
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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diff changeset
446 * Returns the selected River object based on the 'river' data that might
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
447 * have been inserted by the user.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
448 *
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
449 * @return the selected River or null if no river has been chosen yet.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
450 */
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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diff changeset
451 public River getRiver() {
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
452 StateData dRiver = getData("river");
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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diff changeset
453
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
454 return dRiver != null
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
455 ? RiverFactory.getRiver((String) dRiver.getValue())
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
456 : null;
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
457 }
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
458
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
459
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
460 /**
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
461 * Returns the selected distance of points.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
462 *
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
463 * @return the selected distance or points.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
464 */
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
465 public double[] getDistance() {
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
466 StateData dFrom = getData("ld_from");
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
467 StateData dTo = getData("ld_to");
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
468
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
469 double from = Double.parseDouble((String) dFrom.getValue());
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
470 double to = Double.parseDouble((String) dTo.getValue());
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
471
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
472 // TODO take point selection into account
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
473
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
474 return new double[] { from, to };
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
475 }
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
476
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
477
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
478 /**
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
479 * Returns the gauge based on the current distance and river.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
480 *
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
481 * @return the gauge.
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
482 */
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
483 public Gauge getGauge() {
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
484 River river = getRiver();
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
485 double[] dist = getDistance();
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
486
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
487 if (logger.isDebugEnabled()) {
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
488 logger.debug("Determine gauge for:");
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
489 logger.debug("... river: " + river.getName());
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
490 logger.debug("... distance: " + dist[0] + " - " + dist[1]);
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
491 }
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 298
diff changeset
492
320
a8e7c351bdf1 The getGauge() method of the FLYSArtifact returns the first gauge based on the given stationing now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 317
diff changeset
493 Gauge gauge = river.determineGauge(dist[0], dist[1]);
317
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
494
320
a8e7c351bdf1 The getGauge() method of the FLYSArtifact returns the first gauge based on the given stationing now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 317
diff changeset
495 String name = gauge != null ? gauge.getName() : "'n/a";
a8e7c351bdf1 The getGauge() method of the FLYSArtifact returns the first gauge based on the given stationing now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 317
diff changeset
496 logger.debug("Found gauge: " + name);
a8e7c351bdf1 The getGauge() method of the FLYSArtifact returns the first gauge based on the given stationing now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 317
diff changeset
497
a8e7c351bdf1 The getGauge() method of the FLYSArtifact returns the first gauge based on the given stationing now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 317
diff changeset
498 return gauge;
317
8f40a57229c3 FLYSArtifact provides methods to retrieve the real River, Gauge objects.
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parents: 298
diff changeset
499 }
119
84c0b151203e Added a FLYSArtifact that serves as the default artifact for the FLYS application.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
500 }
84c0b151203e Added a FLYSArtifact that serves as the default artifact for the FLYS application.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
501 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org