Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/transition/ValueCompareTransition.java @ 801:d766fe2d917a

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More javadoc. gnv-artifacts/trunk@883 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 06 Apr 2010 16:53:43 +0000
parents c4156275c1e1
children 79c1db3ca7cc
rev   line source
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1 package de.intevation.gnv.transition;
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2
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3 import de.intevation.artifactdatabase.Config;
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5 import de.intevation.gnv.state.InputData;
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6 import de.intevation.gnv.state.State;
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7
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8 import de.intevation.gnv.state.exception.StateException;
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9
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10 import java.util.Iterator;
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12 import org.apache.log4j.Logger;
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13
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14 import org.w3c.dom.Node;
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16 /**
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17 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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18 *
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19 */
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20 public class ValueCompareTransition extends TransitionBase {
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21
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22 /**
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23 * the logger, used to log exceptions and additonaly information
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24 */
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25 private static Logger log = Logger.getLogger(ValueCompareTransition.class);
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26
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27 private String dataName = null;
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28 private String dataValue = null;
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29 private String operator = null;
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31 /**
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32 * The UID of this Class.
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33 */
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34 private static final long serialVersionUID = -7846722158776823205L;
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35
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36 /**
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37 * Constructor
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38 */
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39 public ValueCompareTransition() {
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40 super();
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41 }
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42
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43 /**
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44 * @see de.intevation.gnv.transition.Transition#isValid(de.intevation.gnv.state.State)
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45 */
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46 public boolean isValid(State state) {
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47
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48 try {
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49 Iterator<InputData> it = state.getInputData().iterator();
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50 while (it.hasNext()){
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51 InputData inputData = it.next();
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52 if (inputData.getName().equals(this.dataName)){
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53 boolean returnValue = false;
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54 if (operator.equals("equal")){
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55 returnValue = this.dataValue.equals(inputData.getValue());
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56 }else if (operator.equals("notequal")){
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57 returnValue = !this.dataValue.equals(inputData.getValue());
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58 }
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59 return returnValue;
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60 }
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61 }
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62 if (operator.equals("notequal")){
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63 // data is not given. So the constraint not Equals is fullfilled.
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64 return true;
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65 }
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66 } catch (StateException e) {
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67 log.error(e,e);
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68 return false;
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69 }
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70 return false;
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71 }
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72
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73 @Override
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74 public void setup(Node configuration) {
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75 super.setup(configuration);
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76 this.dataName = Config.getStringXPath(configuration,"condition/@inputvalue");
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77 this.dataValue = Config.getStringXPath(configuration,"condition/@value");
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78 this.operator = Config.getStringXPath(configuration,"condition/@operator");
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79 }
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82 }
http://dive4elements.wald.intevation.org