| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.apache.tools.ant.types.resources; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.tools.ant.types.Path; |
| |
| /** |
| * A Resource representation of something loadable via a Java classloader. |
| * @since Ant 1.7 |
| */ |
| public class JavaResource extends AbstractClasspathResource { |
| |
| /** |
| * Default constructor. |
| */ |
| public JavaResource() { |
| } |
| |
| /** |
| * Construct a new JavaResource using the specified name and |
| * classpath. |
| * |
| * @param name the resource name. |
| * @param path the classpath. |
| */ |
| public JavaResource(String name, Path path) { |
| setName(name); |
| setClasspath(path); |
| } |
| |
| /** |
| * open the inpout stream from a specific classloader |
| * @param cl the classloader to use. Will be null if the system classloader is used |
| * @return an open input stream for the resource |
| * @throws IOException if an error occurs. |
| */ |
| protected InputStream openInputStream(ClassLoader cl) throws IOException { |
| return cl == null ? ClassLoader.getSystemResourceAsStream(getName()) |
| : cl.getResourceAsStream(getName()); |
| } |
| |
| /** |
| * Compare this JavaResource to another Resource. |
| * @param another the other Resource against which to compare. |
| * @return a negative integer, zero, or a positive integer as this |
| * JavaResource is less than, equal to, or greater than the |
| * specified Resource. |
| */ |
| public int compareTo(Object another) { |
| if (isReference()) { |
| return ((Comparable) getCheckedRef()).compareTo(another); |
| } |
| if (another.getClass().equals(getClass())) { |
| JavaResource otherjr = (JavaResource) another; |
| if (!getName().equals(otherjr.getName())) { |
| return getName().compareTo(otherjr.getName()); |
| } |
| if (getLoader() != otherjr.getLoader()) { |
| if (getLoader() == null) { |
| return -1; |
| } |
| if (otherjr.getLoader() == null) { |
| return 1; |
| } |
| return getLoader().getRefId() |
| .compareTo(otherjr.getLoader().getRefId()); |
| } |
| Path p = getClasspath(); |
| Path op = otherjr.getClasspath(); |
| if (p != op) { |
| if (p == null) { |
| return -1; |
| } |
| if (op == null) { |
| return 1; |
| } |
| return p.toString().compareTo(op.toString()); |
| } |
| return 0; |
| } |
| return super.compareTo(another); |
| } |
| |
| } |