Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/wsplgen/WSPLGENCallable.java @ 3606:2b308a5d5281

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Fix for NPE flys-artifacts/trunk@5233 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Christian Lins <christian.lins@intevation.de>
date Wed, 22 Aug 2012 12:25:28 +0000
parents 453d2d0c4258
children b87073a05f9d
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.File;
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4 import java.io.IOException;
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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 import de.intevation.flys.artifacts.model.map.WSPLGENJob;
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11
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12
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13 /**
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14 * A Callable that is used to start and observe an external Process for WSPLGEN.
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15 *
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16 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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17 */
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18 public class WSPLGENCallable implements Callable {
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19
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20 public static final String WSPLGEN_PARAMETER_FILE =
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21 "wsplgen.par";
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22
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23 public static final String WSPLGEN_BIN_PATH =
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24 System.getProperty("wsplgen.bin.path");
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25
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26
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27 private Logger logger = Logger.getLogger(WSPLGENCallable.class);
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28
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29 private Process process;
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30
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31 protected Scheduler scheduler;
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32
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33 protected WSPLGENJob job;
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34
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35 protected JobObserver logObserver;
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36 protected ProblemObserver errorObserver;
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37
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38
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39 public WSPLGENCallable(Scheduler scheduler, WSPLGENJob job) {
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40 this.scheduler = scheduler;
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41 this.job = job;
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42 this.logObserver = new JobObserver(job);
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43 this.errorObserver = new ProblemObserver(job);
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44 }
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45
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46
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47 @Override
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48 public WSPLGENJob call() {
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49 File dir = job.getWorkingDir();
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50 File parameter = new File(dir, WSPLGEN_PARAMETER_FILE);
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51
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52 String[] args = new String[] {
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53 WSPLGEN_BIN_PATH,
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54 "-PAR=\"" + parameter.getAbsolutePath() + "\""
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55 };
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56
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57 execute(args, dir);
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58
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59 return job;
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60 }
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61
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62
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63 protected void execute(String[] args, File dir) {
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64 logger.info("Start JobExecutor for artifact: " + dir.getName());
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65
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66 String errorMsg = null;
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67
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68 try {
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69 synchronized (this) {
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70 process = Runtime.getRuntime().exec(args, null, dir);
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71
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72 logObserver.setInputStream(process.getInputStream());
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73 errorObserver.setInputStream(process.getErrorStream());
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74
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75 logObserver.start();
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76 errorObserver.start();
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77
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78 try {
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79 process.waitFor();
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80 }
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81 catch (InterruptedException ie) {
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82 logger.warn("WSPLGEN job interrupted: " + ie.getMessage());
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83 }
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84
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85 try {
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86 logObserver.join();
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87 errorObserver.join();
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88 }
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89 catch (InterruptedException iee) { /* do nothing */ }
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90
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91 logger.info("WSPLGEN exit value: " + process.exitValue());
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92 logger.info(
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93 "WSPLGEN throw " +
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94 errorObserver.numErrors() + " errors.");
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95 logger.info(
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96 "WSPLGEN throw " +
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97 errorObserver.numWarnings() + " warnings.");
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98
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99 if (process.exitValue() < 2 && errorObserver.numErrors() == 0) {
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100 FacetCreator fc = job.getFacetCreator();
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101 fc.createWSPLGENFacet();
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102 fc.finish();
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103 }
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104
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105 job.getCallContext().afterBackground(CallContext.STORE);
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106
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107 scheduler.removeJob(getJob().getArtifact().identifier());
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108
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109 return;
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110 }
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111 }
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112 catch (SecurityException se) {
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113 logger.error(se);
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114 }
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115 catch (IOException ioe) {
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116 logger.error(ioe);
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117 }
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118 catch (NullPointerException npe) {
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119 logger.error(npe, npe);
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120 }
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121 catch (IndexOutOfBoundsException ioobe) {
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122 logger.error(ioobe, ioobe);
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123 }
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124 }
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125
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126
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127 public void cancelWSPLGEN() {
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128 if (process != null) {
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129 logger.debug("Cancel running WSPLGEN process.");
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130 process.destroy();
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131 }
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132 }
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133
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134
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135 public WSPLGENJob getJob() {
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136 return job;
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137 }
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138 }
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139 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
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