001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.discovery; 018 019 import java.io.IOException; 020 import java.io.InputStream; 021 import java.net.URL; 022 import java.util.Vector; 023 024 025 /** 026 * 'Resource' located by discovery. 027 * Naming of methods becomes a real pain ('getClass()') 028 * so I've patterned this after ClassLoader... 029 * 030 * I think it works well as it will give users a point-of-reference. 031 * 032 * @author Craig R. McClanahan 033 * @author Costin Manolache 034 * @author Richard A. Sitze 035 */ 036 public class Resource 037 { 038 protected final String name; 039 protected final URL resource; 040 protected final ClassLoader loader; 041 042 public Resource(String resourceName, URL resource, ClassLoader loader) { 043 this.name = resourceName; 044 this.resource = resource; 045 this.loader = loader; 046 } 047 048 /** 049 * Get the value of resourceName. 050 * @return value of resourceName. 051 */ 052 public String getName() { 053 return name; 054 } 055 056 // /** 057 // * Set the value of URL. 058 // * @param v Value to assign to URL. 059 // */ 060 // public void setResource(URL resource) { 061 // this.resource = resource; 062 // } 063 064 /** 065 * Get the value of URL. 066 * @return value of URL. 067 */ 068 public URL getResource() { 069 return resource; 070 } 071 072 /** 073 * Get the value of URL. 074 * @return value of URL. 075 */ 076 public InputStream getResourceAsStream() { 077 try { 078 return resource.openStream(); 079 } catch (IOException e) { 080 return null; // ignore 081 } 082 } 083 084 /** 085 * Get the value of loader. 086 * @return value of loader. 087 */ 088 public ClassLoader getClassLoader() { 089 return loader ; 090 } 091 092 // /** 093 // * Set the value of loader. 094 // * @param v Value to assign to loader. 095 // */ 096 // public void setClassLoader(ClassLoader loader) { 097 // this.loader = loader; 098 // } 099 100 public String toString() { 101 return "Resource[" + getName() + ", " + getResource() + ", " + getClassLoader() + "]"; 102 } 103 104 public static Resource[] toArray(ResourceIterator iterator) { 105 Vector vector = new Vector(); 106 while (iterator.hasNext()) { 107 vector.add(iterator.nextResource()); 108 } 109 Resource[] resources = new Resource[vector.size()]; 110 vector.copyInto(resources); 111 112 return resources; 113 } 114 }