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PatternTesting Runtime (patterntesting-rt) is the runtime component for
the PatternTesting framework. It provides the annotations and base classes
for the PatternTesting testing framework (e.g. patterntesting-check,
patterntesting-concurrent or patterntesting-exception) but can be also
used standalone for classpath monitoring or profiling.
It uses AOP and AspectJ to perform this feat.
/**
* $Id: ClasspathHelper.java,v 1.4 2011/07/09 21:43:22 oboehm Exp $
*
* Copyright (c) 2009 by Oliver Boehm
*
* 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 orimplied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* (c)reated 27.07.2009 by oliver ([email protected])
*/
package patterntesting.runtime.util;
import java.net.*;
import org.apache.commons.lang.StringUtils;
import org.slf4j.*;
/**
* This class contains some helper classes which are used inside
* ClasspathMonitor and ClasspathDigger.
* Some of the methods were formerly placed in ClasspathMonitor but also
* needed by ClasspathDigger. To avoid dependencies from ClasspathDigger to
* ClasspathMonitor the common methods were moved to this class here.
*
* @author oliver
* @since 27.07.2009
* @version $Revision: 1.4 $
*/
public final class ClasspathHelper {
private static final Logger log = LoggerFactory.getLogger(ClasspathHelper.class);
/** to avoid instantiation */
private ClasspathHelper() {}
/**
* Don't use @ProfileMe here! This method is also used when
* ProfileStatistic is set up!
*
* @param path
* e.g. "jar:file:/a/b/c.jar!/d/e.class
* @param resource
* e.g. "/d/e.class"
* @return e.g. "jar:file:/a/b/c.jar"
*/
public static URI getParent(final URI path, final String resource) {
String p = removeTrailingSlash(path.toString());
String res = removeTrailingSlash(resource);
String parent = StringUtils.removeEnd(p, res);
parent = removeTrailingSlash(parent);
if (parent.endsWith("!")) {
parent = parent.substring(0, (parent.length() - 1));
}
try {
return new URI(parent);
} catch (URISyntaxException canthappen) {
log.error("can't extract " + resource + " from " + path,
canthappen);
return path;
}
}
private static String removeTrailingSlash(final String s) {
if (s.endsWith("/") || s.endsWith("\\")) {
return s.substring(0, (s.length() - 1));
}
return s;
}
/**
* Gets the parent of the given class.
*
* @param path
* e.g. "jar:file:/a/b/c.jar!/d/e.class
* @param clazz
* e.gl. "d.e.class"
* @return e.g. "jar:file:/a/b/c.jar"
*/
public static URI getParent(final URI path, final Class clazz) {
String resource = Converter.toResource(clazz);
return getParent(path, resource);
}
}