Package org.gudy.azureus2.pluginsimpl.local.installer

Source Code of org.gudy.azureus2.pluginsimpl.local.installer.InstallablePluginImpl

/*
* Created on 01-Dec-2004
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/

package org.gudy.azureus2.pluginsimpl.local.installer;

import org.gudy.azureus2.core3.util.AESemaphore;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.plugins.*;
import org.gudy.azureus2.plugins.installer.InstallablePlugin;
import org.gudy.azureus2.plugins.installer.PluginInstallationListener;
import org.gudy.azureus2.plugins.installer.PluginInstaller;
import org.gudy.azureus2.plugins.update.*;
import org.gudy.azureus2.pluginsimpl.update.PluginUpdatePlugin;

/**
* @author parg
*
*/

public abstract class
InstallablePluginImpl
  implements InstallablePlugin
{
  private PluginInstallerImpl    installer;
 
 
  protected
  InstallablePluginImpl(
    PluginInstallerImpl    _installer )
  {
    installer = _installer;
  }
 
  /**
   * Returns the plugin's interface if already installed, null if it isn't
   * @return
   */
 
  public boolean
  isAlreadyInstalled()
  {
    PluginInterface pi = getAlreadyInstalledPlugin();
   
    if ( pi == null ){
     
      return( false );
    }
   
    String version = getVersion();
   
    if ( version == null || version.length() == 0 ){
     
      return( false );
    }
   
    String existing_version = pi.getPluginVersion();
   
      // this is the case when running with plugin in eclipse
   
    if ( existing_version == null ){
     
      return( true );
    }
   
    return( Constants.compareVersions( existing_version, version ) >= 0);
  }
 
  public PluginInterface
  getAlreadyInstalledPlugin()
  {
    return( installer.getAlreadyInstalledPlugin( getId()));
  }
 
  public void
  install(
    boolean    shared )
 
    throws PluginException
  {
    installer.install( this, shared );
 
 
  public void
  install(
    boolean        shared,
    boolean        low_noise,
    final boolean    wait_until_done )
 
    throws PluginException
  {
    final AESemaphore sem = new AESemaphore( "FPI" );
   
    final PluginException[]  error = { null };
   
    installer.install(
      new InstallablePlugin[]{ this },
      shared,
      low_noise,
      null,
      new PluginInstallationListener()
      {
        public void
        completed()
        {
          sem.release();
        }
       
        public void
        cancelled()
        {
          failed( new PluginException( "Install cancelled" ));
        }
       
        public void
        failed(
          PluginException e )
        {
          error[0] = e;
         
          sem.release();
         
          if ( !wait_until_done ){
           
            Debug.out( "Install failed", e );
          }
        }
      });
   
    if ( wait_until_done ){
     
      sem.reserve();
     
      if ( error[0] != null ){
       
        throw( error[0] );
      }
    }
  } 
 
  public void
  uninstall()
 
    throws PluginException
  {
    installer.uninstall( this );
 
 
  public PluginInstaller
  getInstaller()
  {
    return( installer );
  }
 
  public abstract void
  addUpdate(
      UpdateCheckInstance  inst,
      PluginUpdatePlugin  plugin_update_plugin,
      Plugin        plugin,
      PluginInterface    plugin_interface );
}
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