| /* |
| * 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 org.apache.tools.ant.types.Reference; |
| import org.apache.tools.ant.types.Resource; |
| import org.apache.tools.ant.util.FileNameMapper; |
| |
| /** |
| * A decorator around a different resource that uses a mapper to |
| * dynamically remap the resource's name. |
| * |
| * <p>Strips the FileProvider interface from decorated resources since |
| * it may be used to circumvent name mapping.</p> |
| * |
| * @since Ant 1.8.0 |
| */ |
| public class MappedResource extends ResourceDecorator { |
| private final FileNameMapper mapper; |
| |
| /** |
| * Wraps an existing resource. |
| * @param r Resource to wrap |
| * @param m FileNameMapper that handles mapping |
| */ |
| public MappedResource(Resource r, FileNameMapper m) { |
| super(r); |
| mapper = m; |
| } |
| |
| /** |
| * Maps the name. |
| */ |
| @Override |
| public String getName() { |
| String name = getResource().getName(); |
| if (isReference()) { |
| return name; |
| } |
| String[] mapped = mapper.mapFileName(name); |
| return mapped != null && mapped.length > 0 ? mapped[0] : null; |
| } |
| |
| /** |
| * Not really supported since mapper is never null. |
| * @param r reference to set |
| */ |
| @Override |
| public void setRefid(Reference r) { |
| if (mapper != null) { |
| throw noChildrenAllowed(); |
| } |
| super.setRefid(r); |
| } |
| |
| /** |
| * Suppress FileProvider |
| * @param clazz the type to implement |
| */ |
| @Override |
| public <T> T as(Class<T> clazz) { |
| return FileProvider.class.isAssignableFrom(clazz) |
| ? null : getResource().as(clazz); |
| } |
| |
| /** |
| * Get the hash code for this Resource. |
| * @since Ant 1.8.1 |
| */ |
| @Override |
| public int hashCode() { |
| String n = getName(); |
| return n == null ? super.hashCode() : n.hashCode(); |
| } |
| |
| /** |
| * Equality check based on the resource's name in addition to the |
| * resource itself. |
| * @since Ant 1.8.1 |
| */ |
| @Override |
| public boolean equals(Object other) { |
| if (other == null || other.getClass() != getClass()) { |
| return false; |
| } |
| MappedResource m = (MappedResource) other; |
| String myName = getName(); |
| String otherName = m.getName(); |
| return (myName == null ? otherName == null : myName.equals(otherName)) |
| && getResource().equals(m.getResource()); |
| } |
| |
| @Override |
| public String toString() { |
| if (isReference()) { |
| return getCheckedRef().toString(); |
| } |
| return getName(); |
| } |
| |
| } |