annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/access/MapAccess.java @ 5779:ebec12def170

Datacage: Add a pool of builders to make it multi threadable. XML DOM is not thread safe. Therefore the old implementation only allowed one thread to use the builder at a time. As the complexity of the configuration has increased over time this has become a bottleneck of the whole application because it took quiet some time to build a result. Furthermore the builder code path is visited very frequent. So many concurrent requests were piled up resulting in long waits for the users. To mitigate this problem a round robin pool of builders is used now. Each of the pooled builders has an independent copy of the XML template and can be run in parallel. The number of builders is determined by the system property 'flys.datacage.pool.size'. It defaults to 4.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 21 Apr 2013 12:48:09 +0200
parents 6131b352e5e4
children
rev   line source
5307
6131b352e5e4 Data structure and factory for hws.
Raimund Renkert <rrenkert@intevation.de>
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1 package de.intevation.flys.artifacts.access;
6131b352e5e4 Data structure and factory for hws.
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2
6131b352e5e4 Data structure and factory for hws.
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3 import java.util.ArrayList;
6131b352e5e4 Data structure and factory for hws.
Raimund Renkert <rrenkert@intevation.de>
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4 import java.util.Arrays;
6131b352e5e4 Data structure and factory for hws.
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5 import java.util.List;
6131b352e5e4 Data structure and factory for hws.
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6
6131b352e5e4 Data structure and factory for hws.
Raimund Renkert <rrenkert@intevation.de>
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7 import de.intevation.artifacts.CallContext;
6131b352e5e4 Data structure and factory for hws.
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8 import de.intevation.flys.artifacts.FLYSArtifact;
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9
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10
6131b352e5e4 Data structure and factory for hws.
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11 public class MapAccess
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Raimund Renkert <rrenkert@intevation.de>
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12 extends RangeAccess
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13 {
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14
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15 public MapAccess(FLYSArtifact artifact, CallContext context) {
6131b352e5e4 Data structure and factory for hws.
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16 super(artifact, context);
6131b352e5e4 Data structure and factory for hws.
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17 }
6131b352e5e4 Data structure and factory for hws.
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18
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19 public List<String> getHWS() {
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20 String param = getString("uesk.hws");
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21 if (param != null) {
6131b352e5e4 Data structure and factory for hws.
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22 String[] split = param.split(";");
6131b352e5e4 Data structure and factory for hws.
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23 return new ArrayList<String>(Arrays.asList(split));
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24 }
6131b352e5e4 Data structure and factory for hws.
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25 return new ArrayList<String>();
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26 }
6131b352e5e4 Data structure and factory for hws.
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27 }

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