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Java > Open Source Codes > org > apache > commons > discovery > ant > ServiceDiscoveryTask


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57
58 package org.apache.commons.discovery.ant;
59
60 import java.util.Vector JavaDoc;
61
62 import org.apache.commons.discovery.Resource;
63 import org.apache.commons.discovery.jdk.JDKHooks;
64 import org.apache.commons.discovery.listeners.GatherResourcesListener;
65 import org.apache.commons.discovery.resource.DiscoverResources;
66
67
68 /**
69  * Small ant task that will use discovery to locate a particular impl.
70  * and display all values.
71  *
72  * You can execute this and save it with an id, then other classes can use it.
73  *
74  * @author Costin Manolache
75  */
76 public class ServiceDiscoveryTask
77 {
78     String JavaDoc name;
79     int debug=0;
80     String JavaDoc[] drivers = null;
81         
82     public void setServiceName(String JavaDoc name ) {
83         this.name=name;
84     }
85
86     public void setDebug(int i) {
87         this.debug=debug;
88     }
89
90     public String JavaDoc[] getServiceInfo() {
91         return drivers;
92     }
93
94     public void execute() throws Exception JavaDoc {
95         System.out.println("XXX ");
96         
97         GatherResourcesListener listener = new GatherResourcesListener();
98         DiscoverResources disc = new DiscoverResources();
99         disc.addClassLoader( JDKHooks.getJDKHooks().getThreadContextClassLoader() );
100         disc.addClassLoader( this.getClass().getClassLoader() );
101         disc.setListener(listener);
102         disc.find(name);
103
104         Vector JavaDoc vector = listener.getResources();
105         drivers = new String JavaDoc[vector.size()];
106         for (int i = 0; i < vector.size(); i++) {
107             drivers[i] = ((Resource)vector.get(i)).getName();
108             if( debug > 0 ) {
109                 System.out.println("Found " + drivers[i]);
110             }
111         }
112     }
113         
114 }
115
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