1 files changed, 53 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/AllButLast.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/AllButLast.java
new file mode 100644
index 00000000..a1e6a984
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/AllButLast.java
@@ -0,0 +1,53 @@
+/*
+ *  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.util.Collection;
+import java.util.List;
+
+import org.apache.tools.ant.types.Resource;
+import org.apache.tools.ant.util.CollectionUtils;
+
+/**
+ * ResourceCollection that contains all resources of another
+ * collection except for the last <code>count</code> elements, a la
+ * the UNIX head command with parameter <code>-n -count</code>.
+ * @since Ant 1.9.5
+ */
+public class AllButLast extends SizeLimitCollection {
+
+    /**
+     * Take all elements except for the last <code>count</code> elements.
+     * @return a Collection of Resources.
+     */
+    protected Collection<Resource> getCollection() {
+        int ct = getValidCount();
+        List<Resource> result =
+            (List<Resource>) CollectionUtils.asCollection(getResourceCollection()
+                                                          .iterator());
+        return result.subList(0, result.size() - ct);
+    }
+
+    @Override
+    public synchronized int size() {
+        int sz = getResourceCollection().size();
+        int ct = getValidCount();
+        return sz > ct ? sz - ct : 0;
+    }
+
+}