1 files changed, 116 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/MappedResource.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/MappedResource.java
new file mode 100644
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--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/MappedResource.java
@@ -0,0 +1,116 @@
+/*
+ *  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().equals(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();
+    }
+
+}