io.fabric8.maven.docker.config.ArchiveCompression Maven / Gradle / Ivy
package io.fabric8.maven.docker.config;
/*
*
* Copyright 2015 Roland Huss
*
* 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.
*/
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;
import org.apache.commons.compress.compressors.bzip2.BZip2CompressorOutputStream;
import org.codehaus.plexus.archiver.tar.TarArchiver;
/**
* Enumeration for determine the compression mode when creating docker
* build archives.
*
* @author roland
* @since 26/10/15
*/
public enum ArchiveCompression {
none(TarArchiver.TarCompressionMethod.none, "tar"),
gzip(TarArchiver.TarCompressionMethod.gzip,"tar.gz") {
@Override
public OutputStream wrapOutputStream(OutputStream out) throws IOException {
return new GZIPOutputStream(out);
}
},
bzip2(TarArchiver.TarCompressionMethod.bzip2,"tar.bz") {
@Override
public OutputStream wrapOutputStream(OutputStream out) throws IOException {
return new BZip2CompressorOutputStream(out);
}
};
// ====================================================================
private final TarArchiver.TarCompressionMethod tarCompressionMethod;
private final String fileSuffix;
ArchiveCompression(TarArchiver.TarCompressionMethod tarCompressionMethod, String fileSuffix) {
this.tarCompressionMethod = tarCompressionMethod;
this.fileSuffix = fileSuffix;
}
public TarArchiver.TarCompressionMethod getTarCompressionMethod() {
return tarCompressionMethod;
}
public String getFileSuffix() {
return fileSuffix;
}
public OutputStream wrapOutputStream(OutputStream outputStream) throws IOException {
return outputStream;
}
public static ArchiveCompression fromFileName(String filename) {
if (filename.endsWith(".tar.gz") || filename.endsWith(".tgz")) {
return ArchiveCompression.gzip;
}
if (filename.endsWith(".tar.bz") || filename.endsWith(".tar.bzip2") || filename.endsWith(".tar.bz2")) {
return ArchiveCompression.bzip2;
}
return ArchiveCompression.none;
}
}