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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.tools.ant.types.resources;
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import org.apache.tools.ant.BuildException;
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* ResourceCollection that imposes a size limit on another ResourceCollection.
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public abstract class SizeLimitCollection extends BaseResourceCollectionWrapper {
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private static final String BAD_COUNT
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= "size-limited collection count should be set to an int >= 0";
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private int count = 1;
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* Set the number of resources to be included.
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* @param i the count as <code>int</count>.
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public synchronized void setCount(int i) {
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* Get the number of resources to be included. Default is 1.
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* @return the count as <code>int</count>.
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public synchronized int getCount() {
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* Efficient size implementation.
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public synchronized int size() {
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int sz = getResourceCollection().size();
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int ct = getValidCount();
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return sz < ct ? sz : ct;
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* Get the count, verifying it is >= 0.
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protected int getValidCount() {
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throw new BuildException(BAD_COUNT);