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

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.equinox;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.argeo.slc.SlcException;
  21 import org.argeo.slc.execution.RealizedFlow;
  22 import org.argeo.slc.osgi.OsgiExecutionModulesManager;
  23 import org.eclipse.osgi.framework.console.CommandInterpreter;
  24 import org.eclipse.osgi.framework.console.CommandProvider;
  25
  26 public class ExecutionCommandProvider implements CommandProvider {
  27         private final static Log log = LogFactory
  28                         .getLog(ExecutionCommandProvider.class);
  29
  30         private final static String SLC_WITH_REFRESH = "slc";
  31         private final static String SLC_NO_REFRESH = "slcnr";
  32
  33         private OsgiExecutionModulesManager modulesManager;
  34
  35         private RealizedFlow lastLaunch = null;
  36
  37         public Object _slc(CommandInterpreter ci) {
  38                 return exec(SLC_WITH_REFRESH, ci);
  39         }
  40
  41         public Object _slcnr(CommandInterpreter ci) {
  42                 return exec(SLC_NO_REFRESH, ci);
  43         }
  44
  45         protected Object exec(String slcCommand, CommandInterpreter ci) {
  46                 // TODO: check version
  47                 String firstArg = ci.nextArgument();
  48                 if (firstArg == null) {
  49                         if (lastLaunch != null) {
  50                                 String cmd = slcCommand + " " + lastLaunch.getModuleName()
  51                                                 + " " + lastLaunch.getFlowDescriptor().getName();
  52                                 if (log.isDebugEnabled())
  53                                         log.debug("Execute again last command: " + cmd);
  54                                 return ci.execute(cmd);
  55                         } else {
  56                                 ci.execute("help");
  57                                 throw new SlcException("Command not properly formatted");
  58                         }
  59                 }
  60                 String executionName = ci.nextArgument();
  61
  62                 launch(slcCommand, firstArg, executionName);
  63                 return "COMMAND COMPLETED";
  64         }
  65
  66         protected void launch(String slcCommand, String firstArg,
  67                         String executionName) {
  68                 lastLaunch = modulesManager.findRealizedFlow(firstArg, executionName);
  69                 if (lastLaunch == null)
  70                         throw new SlcException("Cannot find launch for " + firstArg + " "
  71                                         + executionName);
  72
  73                 // Execute
  74                 if (SLC_WITH_REFRESH.equals(slcCommand)) {
  75                         modulesManager.upgrade(lastLaunch.getModuleNameVersion());
  76                         modulesManager.execute(lastLaunch);
  77                 } else if (SLC_NO_REFRESH.equals(slcCommand))
  78                         modulesManager.execute(lastLaunch);
  79                 else
  80                         throw new SlcException("Unrecognized SLC command " + slcCommand);
  81         }
  82
  83         public String getHelp() {
  84                 StringBuffer buf = new StringBuffer();
  85                 buf.append("---SLC Execution Commands---\n");
  86                 buf
  87                                 .append("\tslc (<id>|<segment of bsn>) <execution bean>"
  88                                                 + "  - refresh the bundle, execute an execution flow (without arg, execute last)\n");
  89                 buf
  90                                 .append("\tslcnr (<id>|<segment of bsn>) <execution bean>"
  91                                                 + "  - execute an execution flow (without arg, execute last)\n");
  92                 return buf.toString();
  93
  94         }
  95
  96         public void setModulesManager(OsgiExecutionModulesManager osgiModulesManager) {
  97                 this.modulesManager = osgiModulesManager;
  98         }
  99
 100 }