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From cos...@apache.org
Subject cvs commit: jakarta-ant/proposal/embed/src/java/org/apache/tools/ant/taskdefs ServiceDiscoveryTask.java
Date Fri, 30 Aug 2002 23:10:11 GMT
costin      2002/08/30 16:10:11

  Added:       proposal/embed/src/java/org/apache/tools/ant/taskdefs
                        ServiceDiscoveryTask.java
  Log:
  Moved from discovery - it'll be the start on discovering the tasks.
  
  Revision  Changes    Path
  1.1                  jakarta-ant/proposal/embed/src/java/org/apache/tools/ant/taskdefs/ServiceDiscoveryTask.java
  
  Index: ServiceDiscoveryTask.java
  ===================================================================
  /*
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.tools.ant.taskdefs;
  
  import java.util.Vector;
  
  import org.apache.commons.discovery.ResourceName;
  import org.apache.commons.discovery.ResourceNameIterator;
  import org.apache.commons.discovery.jdk.JDKHooks;
  import org.apache.commons.discovery.resource.DiscoverResources;
  
  
  /**
   * Small ant task that will use discovery to locate a particular impl.
   * and display all values.
   *
   * You can execute this and save it with an id, then other classes can use it.
   *
   * @author Costin Manolache
   */
  public class ServiceDiscoveryTask
  {
      String name;
      int debug=0;
      ResourceName[] drivers = null;
          
      public void setServiceName(String name ) {
          this.name=name;
      }
  
      public void setDebug(int i) {
          this.debug=debug;
      }
  
      public ResourceName[] getServiceInfo() {
          return drivers;
      }
  
      public void execute() throws Exception {
          System.out.println("XXX ");
          
          DiscoverResources disc = new DiscoverResources();
          disc.addClassLoader( JDKHooks.getJDKHooks().getThreadContextClassLoader() );
          disc.addClassLoader( this.getClass().getClassLoader() );
          
          ResourceNameIterator enum = disc.findResources(name);
  
          Vector vector = new Vector();
          while (enum.hasNext()) {
              ResourceName resourceInfo = enum.nextResourceName();
              vector.add(resourceInfo);
              if( debug > 0 ) {
                  System.out.println("Found " + resourceInfo);
              }
          }
          
          drivers = new ResourceName[vector.size()];
          vector.copyInto(drivers);
      }
          
  }
  
  
  

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