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Ant example source code file (Intersect.java)
The Intersect.java source code/* * 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.List; import java.util.Iterator; import java.util.ArrayList; import java.util.Collection; import org.apache.tools.ant.BuildException; import org.apache.tools.ant.types.ResourceCollection; /** * ResourceCollection representing the intersection * of multiple nested ResourceCollections. * @since Ant 1.7 */ public class Intersect extends BaseResourceCollectionContainer { /** * Calculate the intersection of the nested ResourceCollections. * @return a Collection of Resources. */ protected Collection getCollection() { List rcs = getResourceCollections(); int size = rcs.size(); if (size < 2) { throw new BuildException("The intersection of " + size + " resource collection" + ((size == 1) ? "" : "s") + " is undefined."); } ArrayList al = new ArrayList(); Iterator rc = rcs.iterator(); al.addAll(collect(rc.next())); while (rc.hasNext()) { al.retainAll(collect(rc.next())); } return al; } private ArrayList collect(Object o) { ArrayList result = new ArrayList(); for (Iterator i = ((ResourceCollection) o).iterator(); i.hasNext();) { result.add(i.next()); } return result; } } Other Ant examples (source code examples)Here is a short list of links related to this Ant Intersect.java source code file: |
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