Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/wsplgen/WSPLGENCallable.java @ 2089:0da8874bd378

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Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents 368040e5c400
children 453d2d0c4258
rev   line source
1970
368040e5c400 Improved the Scheduler to be able to cancel running WSPLGEN jobs.
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1 package de.intevation.flys.wsplgen;
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2
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3 import java.io.IOException;
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4 import java.io.File;
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5 import java.util.concurrent.Callable;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import de.intevation.artifacts.CallContext;
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10
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11 import de.intevation.flys.artifacts.model.WSPLGENJob;
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12
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13
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14 /**
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15 * A Callable that is used to start and observe an external Process for WSPLGEN.
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16 *
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17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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18 */
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19 public class WSPLGENCallable implements Callable {
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20
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21 public static final String WSPLGEN_PARAMETER_FILE =
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22 "wsplgen.par";
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23
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24 public static final String WSPLGEN_BIN_PATH =
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25 System.getProperty("wsplgen.bin.path");
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26
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27
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28 private Logger logger = Logger.getLogger(WSPLGENCallable.class);
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29
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30 private Process process;
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31
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32 protected Scheduler scheduler;
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33
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34 protected WSPLGENJob job;
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35
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36 protected JobObserver logObserver;
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37 protected ProblemObserver errorObserver;
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38
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39
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40 public WSPLGENCallable(Scheduler scheduler, WSPLGENJob job) {
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41 this.scheduler = scheduler;
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42 this.job = job;
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43 this.logObserver = new JobObserver(job);
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44 this.errorObserver = new ProblemObserver(job);
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45 }
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46
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47
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48 @Override
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49 public WSPLGENJob call() {
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50 File dir = job.getWorkingDir();
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51 File parameter = new File(dir, WSPLGEN_PARAMETER_FILE);
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52
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53 String[] args = new String[] {
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54 WSPLGEN_BIN_PATH,
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55 "-PAR=\"" + parameter.getAbsolutePath() + "\""
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56 };
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57
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58 execute(args, dir);
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59
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60 return job;
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61 }
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62
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63
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64 protected void execute(String[] args, File dir) {
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65 logger.info("Start JobExecutor for artifact: " + dir.getName());
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66
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67 String errorMsg = null;
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68
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69 try {
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70 synchronized (this) {
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71 process = Runtime.getRuntime().exec(args, null, dir);
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72
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73 logObserver.setInputStream(process.getInputStream());
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74 errorObserver.setInputStream(process.getErrorStream());
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75
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76 logObserver.start();
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77 errorObserver.start();
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78
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79 try {
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80 process.waitFor();
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81 }
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82 catch (InterruptedException ie) {
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83 logger.warn("WSPLGEN job interrupted: " + ie.getMessage());
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84 }
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85
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86 try {
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87 logObserver.join();
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88 errorObserver.join();
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89 }
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90 catch (InterruptedException iee) { /* do nothing */ }
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91
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92 logger.info("WSPLGEN exit value: " + process.exitValue());
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93 logger.info(
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94 "WSPLGEN throw " +
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95 errorObserver.numErrors() + " errors.");
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96 logger.info(
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97 "WSPLGEN throw " +
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98 errorObserver.numWarnings() + " warnings.");
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99
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100 if (process.exitValue() < 2 && errorObserver.numErrors() == 0) {
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101 FacetCreator fc = job.getFacetCreator();
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102 fc.createWSPLGENFacet();
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103 fc.finish();
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104 }
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105
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106 job.getCallContext().afterBackground(CallContext.STORE);
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107
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108 scheduler.removeJob(getJob().getArtifact().identifier());
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109
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110 return;
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111 }
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112 }
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113 catch (SecurityException se) {
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114 logger.error(se);
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115 }
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116 catch (IOException ioe) {
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117 logger.error(ioe);
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118 }
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119 catch (NullPointerException npe) {
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120 logger.error(npe, npe);
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121 }
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122 catch (IndexOutOfBoundsException ioobe) {
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123 logger.error(ioobe, ioobe);
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124 }
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125 }
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126
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127
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128 public void cancelWSPLGEN() {
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129 if (process != null) {
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130 logger.debug("Cancel running WSPLGEN process.");
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131 process.destroy();
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132 }
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133 }
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134
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135
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136 public WSPLGENJob getJob() {
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137 return job;
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138 }
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139 }
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140 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
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