OpenUrlSolver.java example

Explorer
eu.geclipse.core-master
/******************************************************************************
 * Copyright (c) 2008 g-Eclipse consortium 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Initial development of the original code was made for
 * project g-Eclipse founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributor(s):
 *    Mathias Stuempert
 *    Ariel Garcia      - extended for multiple URLs
 *****************************************************************************/

package eu.geclipse.ui.problems;

import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.browser.IWebBrowser;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;

import eu.geclipse.core.reporting.IConfigurableSolver;


/**
 * Solver for opening the system browser for a specified URL.
 */
public class OpenUrlSolver implements IConfigurableSolver {
  
  private static final String BROWSER_ID = "URL_SOLUTION_BROWSER_ID"; //$NON-NLS-1$
  
  private static final String URL_SUB_ELEMENT = "url"; //$NON-NLS-1$
  
  private static final String URL_ATTRIBUTE = "value"; //$NON-NLS-1$
  
  private static final int BROWSER_OPEN_DELAY = 3000;

  private String[] urls;


  /*
   * (non-Javadoc)
   * @see eu.geclipse.core.reporting.ISolver#solve()
   */
  public void solve() throws InvocationTargetException {
    try {
      IWorkbenchBrowserSupport browserSupport
        = PlatformUI.getWorkbench().getBrowserSupport();
      IWebBrowser browser
        = browserSupport.createBrowser( IWorkbenchBrowserSupport.AS_EXTERNAL, BROWSER_ID, null, null );
      
      for ( String url : this.urls ) {
        URL u = new URL( url );
        browser.openURL( u );
        /*
         * Firefox (at least v2.x under Linux) doesn't open all the
         * URLs if the requests come with a short delay, several seconds
         * seem to be needed!
         */
        Thread.sleep( BROWSER_OPEN_DELAY );
      }
    } catch ( MalformedURLException urlExc ) {
      throw new InvocationTargetException( urlExc );
    } catch ( PartInitException piExc ) {
      throw new InvocationTargetException( piExc );
    } catch ( InterruptedException e ) {
      // Nothing to do
    }
  }

  /*
   * (non-Javadoc)
   * @see org.eclipse.core.runtime.IExecutableExtension#setInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
   */
  public void setInitializationData( final IConfigurationElement config,
                                     final String propertyName,
                                     final Object data)
      throws CoreException {

    List< String > urlsList = new ArrayList< String >( 3 );
    IConfigurationElement[] subelements = config.getChildren( URL_SUB_ELEMENT );

    for ( IConfigurationElement subelement : subelements ) {
      String url = subelement.getAttribute( URL_ATTRIBUTE );
      if ( url != null ) {
        urlsList.add( url );
      }
    }
    
    this.urls = urlsList.toArray( new String[ urlsList.size() ] );
  }

}