org.argeo.slc.detached/src/main/java/org/argeo/slc/detached/AppLauncher.java

   1 package org.argeo.slc.detached;
   2
   3 import java.lang.reflect.Method;
   4 import java.util.List;
   5 import java.util.Properties;
   6 import java.util.Vector;
   7
   8 public class AppLauncher {
   9         private Properties systemProperties = new Properties();
  10         private String mainClass = null;
  11         private List arguments = new Vector();
  12
  13         public void launch() {
  14                 try {
  15                         if (mainClass == null)
  16                                 throw new DetachedException(
  17                                                 "A main class name muste be specified.");
  18
  19                         System.getProperties().putAll(systemProperties);
  20                         //Class clss = getClass().getClassLoader().loadClass(mainClass);
  21                         Class clss = Class.forName(mainClass);
  22
  23                         String[] args = new String[arguments.size()];
  24                         for (int i = 0; i < arguments.size(); i++) {
  25                                 args[i] = arguments.get(i).toString();
  26                         }
  27
  28                         Class[] mainArgsClasses = new Class[] { args.getClass() };
  29                         Object[] mainArgs = { args };
  30                         Method mainMethod = clss.getMethod("main", mainArgsClasses);
  31                         mainMethod.invoke(null, mainArgs);
  32
  33                 } catch (Exception e) {
  34                         throw new DetachedException("Unexpected exception while launching "
  35                                         + mainClass, e);
  36                 }
  37
  38         }
  39
  40         public void setSystemProperties(Properties systemProperties) {
  41                 this.systemProperties = systemProperties;
  42         }
  43
  44         public void setMainClass(String mainClass) {
  45                 this.mainClass = mainClass;
  46         }
  47
  48         public void setArguments(List arguments) {
  49                 this.arguments = arguments;
  50         }
  51
  52 }