org.conqat.lib.commons.filesystem.FileExtensionFilter 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.io.File;
import org.conqat.lib.commons.string.StringUtils;
/**
* This is a file filter finding only "normal" files having one of the specified extensions.
*
* @author Benjamin Hummel
* @author Florian Deissenboeck
*/
public class FileExtensionFilter extends FileOnlyFilter {
/** The extension to match. */
private final String[] extensions;
/**
* Creates a new file extension filter.
*
* @param extensions
* the extension required by the files (without the dot). Note that using an empty string
* will not find all files without extension, but rather those ending in a single dot.
*/
public FileExtensionFilter(String... extensions) {
this.extensions = new String[extensions.length];
for (int i = 0; i < extensions.length; i++) {
this.extensions[i] = "." + extensions[i];
}
}
/** {@inheritDoc} */
@Override
public boolean accept(File file) {
return super.accept(file) && StringUtils.endsWithOneOf(file.getName(), extensions);
}
}