runtime/org.argeo.slc.support.equinox/src/main/java/org/argeo/slc/equinox/ExecutionCommandProvider.java

   1 package org.argeo.slc.equinox;
   2
   3 import org.apache.commons.logging.Log;
   4 import org.apache.commons.logging.LogFactory;
   5 import org.argeo.slc.SlcException;
   6 import org.argeo.slc.osgi.OsgiExecutionModulesManager;
   7 import org.argeo.slc.process.RealizedFlow;
   8 import org.eclipse.core.runtime.adaptor.EclipseStarter;
   9 import org.eclipse.osgi.framework.console.CommandInterpreter;
  10 import org.eclipse.osgi.framework.console.CommandProvider;
  11
  12 @SuppressWarnings("restriction")
  13 public class ExecutionCommandProvider implements CommandProvider {
  14         private final static Log log = LogFactory
  15                         .getLog(ExecutionCommandProvider.class);
  16
  17         private final static String SLC_WITH_REFRESH = "slc";
  18         private final static String SLC_NO_REFRESH = "slcnr";
  19
  20         private OsgiExecutionModulesManager modulesManager;
  21
  22         private RealizedFlow lastLaunch = null;
  23
  24         public Object _slc(CommandInterpreter ci) {
  25                 return exec(SLC_WITH_REFRESH, ci);
  26         }
  27
  28         public Object _slcnr(CommandInterpreter ci) {
  29                 return exec(SLC_NO_REFRESH, ci);
  30         }
  31
  32         protected Object exec(String slcCommand, CommandInterpreter ci) {
  33                 // TODO: check version
  34                 String firstArg = ci.nextArgument();
  35                 if (firstArg == null) {
  36                         if (lastLaunch != null) {
  37                                 String cmd = slcCommand + " " + lastLaunch.getModuleName()
  38                                                 + " " + lastLaunch.getFlowDescriptor().getName();
  39                                 if (log.isDebugEnabled())
  40                                         log.debug("Execute again last command: " + cmd);
  41                                 return ci.execute(cmd);
  42                         } else {
  43                                 ci.execute("help");
  44                                 throw new SlcException("Command not properly formatted");
  45                         }
  46                 }
  47                 String executionName = ci.nextArgument();
  48
  49                 launch(slcCommand, firstArg, executionName);
  50                 return "COMMAND COMPLETED";
  51         }
  52
  53         protected void launch(String slcCommand, String firstArg,
  54                         String executionName) {
  55                 lastLaunch = modulesManager.findRealizedFlow(firstArg, executionName);
  56                 if (lastLaunch == null)
  57                         throw new SlcException("Cannot find launch for " + firstArg + " "
  58                                         + executionName);
  59
  60                 // Execute
  61                 if (SLC_WITH_REFRESH.equals(slcCommand))
  62                         modulesManager.updateAndExecute(lastLaunch);
  63                 else if (SLC_NO_REFRESH.equals(slcCommand))
  64                         modulesManager.execute(lastLaunch);
  65                 else
  66                         throw new SlcException("Unrecognized SLC command " + slcCommand);
  67         }
  68
  69         public String getHelp() {
  70                 StringBuffer buf = new StringBuffer();
  71                 buf.append("---SLC Execution Commands---\n");
  72                 buf
  73                                 .append("\tslc (<id>|<segment of bsn>) <execution bean>"
  74                                                 + "  - refresh the bundle, execute an execution flow (without arg, execute last)\n");
  75                 buf
  76                                 .append("\tslcnr (<id>|<segment of bsn>) <execution bean>"
  77                                                 + "  - execute an execution flow (without arg, execute last)\n");
  78                 return buf.toString();
  79
  80         }
  81
  82         public void setModulesManager(OsgiExecutionModulesManager osgiModulesManager) {
  83                 this.modulesManager = osgiModulesManager;
  84         }
  85
  86         public void init() throws Exception {
  87                 final String module = System.getProperty("slc.launch.module");
  88                 final String executionName = System.getProperty("slc.launch.execution");
  89                 if (module != null) {
  90                         new Thread() {
  91
  92                                 @Override
  93                                 public void run() {
  94                                         try {
  95                                                 launch(SLC_NO_REFRESH, module, executionName);
  96                                                 // in case of failure OSGi runtime stays up and last
  97                                                 // launch can be used to debug by calling 'slc'
  98                                         } catch (Exception e) {
  99                                                 throw new SlcException("Error when executing "
 100                                                                 + executionName + " on " + module, e);
 101                                         }
 102                                         try {
 103                                                 EclipseStarter.shutdown();
 104                                         } catch (Exception e) {
 105                                                 throw new SlcException("Cannot shutdown equinox.", e);
 106                                         }
 107                                 }
 108
 109                         }.start();
 110                 }
 111
 112         }
 113 }