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Apache Commons Compress software defines an API for working with
compression and archive formats. These include: bzip2, gzip, pack200,
lzma, xz, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4,
Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj.
/*
* 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.commons.compress.utils;
/**
* Utilities for dealing with OSGi environments.
*
* @since 1.21
*/
public class OsgiUtils {
private static final boolean inOsgiEnvironment;
static {
final ClassLoader classLoader = OsgiUtils.class.getClassLoader();
inOsgiEnvironment = classLoader != null && isBundleReference(classLoader.getClass());
}
private static boolean isBundleReference(final Class> clazz) {
Class> c = clazz;
while (c != null) {
if (c.getName().equals("org.osgi.framework.BundleReference")) {
return true;
}
for (final Class> ifc : c.getInterfaces()) {
if (isBundleReference(ifc)) {
return true;
}
}
c = c.getSuperclass();
}
return false;
}
/**
* Tests if Commons Compress running as an OSGi bundle?
*
* @return true if Commons Compress running as an OSGi bundle.
*/
public static boolean isRunningInOsgiEnvironment() {
return inOsgiEnvironment;
}
}