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/*
* 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 calculator.dosgi.test;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import org.osgi.framework.Bundle;
/**
*
* Utility class to create OSGi bundles
*
* @version $Rev: 796166 $ $Date: 2009-07-21 08:03:47 +0100 (Tue, 21 Jul 2009) $
*/
public class OSGiTestUtils {
private static class InvocationHandlerImpl implements InvocationHandler {
private Object instance;
public InvocationHandlerImpl(Object instance) {
super();
this.instance = instance;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Method m = instance.getClass().getMethod(method.getName(), method.getParameterTypes());
return m.invoke(instance, args);
}
}
/**
* Returns a string representation of the given bundle.
*
* @param b
* @param verbose
* @return
*/
public static String bundleStatus(Bundle bundle, boolean verbose) {
StringBuffer sb = new StringBuffer();
sb.append(bundle.getBundleId()).append(" ").append(bundle.getSymbolicName());
int s = bundle.getState();
if ((s & Bundle.UNINSTALLED) != 0) {
sb.append(" UNINSTALLED");
}
if ((s & Bundle.INSTALLED) != 0) {
sb.append(" INSTALLED");
}
if ((s & Bundle.RESOLVED) != 0) {
sb.append(" RESOLVED");
}
if ((s & Bundle.STARTING) != 0) {
sb.append(" STARTING");
}
if ((s & Bundle.STOPPING) != 0) {
sb.append(" STOPPING");
}
if ((s & Bundle.ACTIVE) != 0) {
sb.append(" ACTIVE");
}
if (verbose) {
sb.append(" ").append(bundle.getLocation());
sb.append(" ").append(bundle.getHeaders());
}
return sb.toString();
}
/**
* A utility to cast the object to the given interface. If the class for the object
* is loaded by a different classloader, a proxy will be created.
*
* @param <T>
* @param obj
* @param cls
* @return
*/
public static <T> T cast(Object obj, Class<T> cls) {
if (cls.isInstance(obj)) {
return cls.cast(obj);
} else {
return cls.cast(Proxy.newProxyInstance(cls.getClassLoader(),
new Class<?>[] {cls},
new InvocationHandlerImpl(obj)));
}
}
}
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