org.conqat.lib.commons.filesystem.CanonicalFilePool Maven / Gradle / Ivy
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Provides common utility functions
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/*
* Copyright (c) CQSE GmbH
*
* Licensed 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.conqat.lib.commons.filesystem;
import java.util.HashMap;
import java.util.Map;
/**
* Pool for {@link CanonicalFile}s.
*
* @author juergens
*/
public class CanonicalFilePool {
/** Set that manages pooled files */
private final Map internedFiles = new HashMap<>();
/** Get file from pool */
public CanonicalFile intern(CanonicalFile file) {
if (!internedFiles.containsKey(file)) {
internedFiles.put(file, file);
}
return internedFiles.get(file);
}
}