Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/MinMaxState.java @ 470:b7bb66440cc8

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Added mechanism for advancing to previous states. gnv-artifacts/trunk@533 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 12 Jan 2010 15:25:32 +0000
parents e964a3d8f7bc
children a6a33ef35809
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.state;
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5
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6 import java.util.ArrayList;
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7 import java.util.Collection;
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8 import java.util.List;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import de.intevation.gnv.geobackend.base.Result;
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13 import de.intevation.gnv.state.describedata.DefaultMinMaxDescribeData;
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14 import de.intevation.gnv.state.describedata.DescribeData;
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15
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16 /**
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17 * @author Tim Englich <tim.englich@intevation.de>
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18 *
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19 */
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20 public class MinMaxState extends StateBase {
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21
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22 /**
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23 * The UID of this Class
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24 */
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25 private static final long serialVersionUID = -3525903792105187408L;
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26 /**
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27 * the logger, used to log exceptions and additonaly information
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28 */
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29 private static Logger log = Logger.getLogger(MinMaxState.class);
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30
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31 /**
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32 * Constructor
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33 */
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34 public MinMaxState() {
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35 super();
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36 }
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37
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38 /**
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39 * @see de.intevation.gnv.state.StateBase#purifyResult(java.util.Collection,
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40 * java.lang.String)
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41 */
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42 @Override
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43 protected void purifyResult(Collection<Result> result, String uuid) {
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44 log.debug("MinMaxState.purifyResult");
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45 List<Object> describeData = this.getDescibeData(uuid);
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46 if (describeData == null) {
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47 describeData = new ArrayList<Object>();
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48 }
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49 if (result != null && result.size() == 1) {
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50
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51 Result value = result.iterator().next();
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52 DescribeData values = new DefaultMinMaxDescribeData(this.dataName,
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53 value.getObject("MIN"),
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54 value.getObject("MAX"));
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55 log.debug(values.toString());
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56 describeData.add(values);
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57 } else {
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58 log.warn("Result cannot be handled as MinMax Resultset");
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59 }
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60 this.setDescibeData(uuid, describeData);
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61 }
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62
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63 }
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