1 files changed, 128 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/selectors/ResourceSelectorContainer.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/selectors/ResourceSelectorContainer.java
new file mode 100644
index 00000000..6b1c8002
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/selectors/ResourceSelectorContainer.java
@@ -0,0 +1,128 @@
+/*
+ *  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.selectors;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Stack;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Project;
+import org.apache.tools.ant.types.DataType;
+
+/**
+ * ResourceSelector container.
+ * @since Ant 1.7
+ */
+public class ResourceSelectorContainer extends DataType {
+
+    private final List<ResourceSelector> resourceSelectors = new ArrayList<ResourceSelector>();
+
+    /**
+     * Default constructor.
+     */
+    public ResourceSelectorContainer() {
+    }
+
+    /**
+     * Construct a new ResourceSelectorContainer with the specified array of selectors.
+     * @param r the ResourceSelector[] to add.
+     */
+    public ResourceSelectorContainer(ResourceSelector[] r) {
+        for (int i = 0; i < r.length; i++) {
+            add(r[i]);
+        }
+    }
+
+    /**
+     * Add a ResourceSelector to the container.
+     * @param s the ResourceSelector to add.
+     */
+    public void add(ResourceSelector s) {
+        if (isReference()) {
+            throw noChildrenAllowed();
+        }
+        if (s == null) {
+            return;
+        }
+        resourceSelectors.add(s);
+        setChecked(false);
+    }
+
+    /**
+     * Learn whether this ResourceSelectorContainer has selectors.
+     * @return boolean indicating whether selectors have been added to the container.
+     */
+    public boolean hasSelectors() {
+        if (isReference()) {
+            return ((ResourceSelectorContainer) getCheckedRef()).hasSelectors();
+        }
+        dieOnCircularReference();
+        return !resourceSelectors.isEmpty();
+    }
+
+    /**
+     * Get the count of nested selectors.
+     * @return the selector count as int.
+     */
+    public int selectorCount() {
+        if (isReference()) {
+            return ((ResourceSelectorContainer) getCheckedRef()).selectorCount();
+        }
+        dieOnCircularReference();
+        return resourceSelectors.size();
+    }
+
+    /**
+     * Return an Iterator over the nested selectors.
+     * @return Iterator of ResourceSelectors.
+     */
+    public Iterator<ResourceSelector> getSelectors() {
+        if (isReference()) {
+            return ((ResourceSelectorContainer) getCheckedRef()).getSelectors();
+        }
+        dieOnCircularReference();
+        return Collections.unmodifiableList(resourceSelectors).iterator();
+    }
+
+    /**
+     * Overrides the version from DataType to recurse on nested ResourceSelectors.
+     * @param stk the Stack of references.
+     * @param p   the Project to resolve against.
+     * @throws BuildException on error.
+     */
+    protected void dieOnCircularReference(Stack<Object> stk, Project p)
+        throws BuildException {
+        if (isChecked()) {
+            return;
+        }
+        if (isReference()) {
+            super.dieOnCircularReference(stk, p);
+        } else {
+            for (ResourceSelector resourceSelector : resourceSelectors) {
+                if (resourceSelector instanceof DataType) {
+                    pushAndInvokeCircularReferenceCheck((DataType) resourceSelector, stk, p);
+                }
+            }
+            setChecked(true);
+        }
+    }
+
+}