1 files changed, 119 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ContainerMapper.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ContainerMapper.java
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+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/util/ContainerMapper.java
@@ -0,0 +1,119 @@
+/*
+ *  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.util;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.tools.ant.types.Mapper;
+
+/**
+ * A <code>FileNameMapper</code> that contains
+ * other <code>FileNameMapper</code>s.
+ * @see FileNameMapper
+ */
+public abstract class ContainerMapper implements FileNameMapper {
+
+    private List mappers = new ArrayList();
+
+    /**
+     * Add a <code>Mapper</code>.
+     * @param mapper the <code>Mapper</code> to add.
+     */
+    public void addConfiguredMapper(Mapper mapper) {
+        add(mapper.getImplementation());
+    }
+
+    /**
+     * An add configured version of the add method.
+     * This class used to contain an add method and an
+     * addConfiguredMapper method. Dur to ordering,
+     * the add method was always called first. This
+     * addConfigured method has been added to allow
+     * chaining to work correctly.
+     * @param fileNameMapper a <code>FileNameMapper</code>.
+     */
+    public void addConfigured(FileNameMapper fileNameMapper) {
+        add(fileNameMapper);
+    }
+
+    /**
+     * Add a <code>FileNameMapper</code>.
+     * @param fileNameMapper a <code>FileNameMapper</code>.
+     * @throws IllegalArgumentException if attempting to add this
+     *         <code>ContainerMapper</code> to itself, or if the specified
+     *         <code>FileNameMapper</code> is itself a <code>ContainerMapper</code>
+     *         that contains this <code>ContainerMapper</code>.
+     */
+    public synchronized void add(FileNameMapper fileNameMapper) {
+        if (this == fileNameMapper
+            || (fileNameMapper instanceof ContainerMapper
+            && ((ContainerMapper) fileNameMapper).contains(this))) {
+            throw new IllegalArgumentException(
+                "Circular mapper containment condition detected");
+        } else {
+            mappers.add(fileNameMapper);
+        }
+    }
+
+    /**
+     * Return <code>true</code> if this <code>ContainerMapper</code> or any of
+     * its sub-elements contains the specified <code>FileNameMapper</code>.
+     * @param fileNameMapper   the <code>FileNameMapper</code> to search for.
+     * @return <code>boolean</code>.
+     */
+    protected synchronized boolean contains(FileNameMapper fileNameMapper) {
+        boolean foundit = false;
+        for (Iterator iter = mappers.iterator(); iter.hasNext() && !foundit;) {
+            FileNameMapper next = (FileNameMapper) (iter.next());
+            foundit = (next == fileNameMapper
+                || (next instanceof ContainerMapper
+                && ((ContainerMapper) next).contains(fileNameMapper)));
+        }
+        return foundit;
+    }
+
+    /**
+     * Get the <code>List</code> of <code>FileNameMapper</code>s.
+     * @return <code>List</code>.
+     */
+    public synchronized List getMappers() {
+        return Collections.unmodifiableList(mappers);
+    }
+
+    /**
+     * Empty implementation.
+     * @param ignore ignored.
+     */
+    public void setFrom(String ignore) {
+        //Empty
+    }
+
+    /**
+     * Empty implementation.
+     * @param ignore ignored.
+     */
+    public void setTo(String ignore) {
+        //Empty
+    }
+
+}
+