1 /*******************************************************************************
2  * Copyright (c) 2011 IBM Corporation and others.
3  *
4  * This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License 2.0
6  * which accompanies this distribution, and is available at
7  * https://www.eclipse.org/legal/epl-2.0/
8  *
9  * SPDX-License-Identifier: EPL-2.0
10  *
11  * Contributors:
12  *     IBM Corporation - initial API and implementation
13  *******************************************************************************/
14 package org.eclipse.equinox.http.servlet.tests.bundle;
15 
16 import org.osgi.framework.Bundle;
17 import org.osgi.framework.BundleContext;
18 import org.osgi.framework.BundleException;
19 
20 /*
21  * The BundleAdvisor is responsible for starting and stopping bundles, given
22  * a Bundle-SymbolicName. It is an OSGi dependent class.
23  */
24 public class BundleAdvisor extends Object {
25 	private final BundleContext bundleContext;
26 
BundleAdvisor(BundleContext bundleContext)27 	public BundleAdvisor(BundleContext bundleContext) {
28 		super();
29 		if (bundleContext == null)
30 			throw new IllegalArgumentException("bundleContext must not be null"); //$NON-NLS-1$
31 		this.bundleContext = bundleContext;
32 	}
33 
getBundle(String symbolicName)34 	private Bundle getBundle(String symbolicName) {
35 		if (symbolicName == null)
36 			throw new IllegalArgumentException("symbolicName must not be null"); //$NON-NLS-1$
37 		BundleContext context = getBundleContext();
38 		Bundle[] bundles = context.getBundles();
39 		for (Bundle bundle : bundles) {
40 			String bsn = bundle.getSymbolicName();
41 			boolean match = symbolicName.equals(bsn);
42 			if (match) {
43 				return bundle;
44 			}
45 		}
46 		throw new IllegalArgumentException("Failed to find bundle: " + symbolicName); //$NON-NLS-1$
47 	}
48 
getBundleContext()49 	private BundleContext getBundleContext() {
50 		return bundleContext;
51 	}
52 
startBundle(String symbolicName)53 	public void startBundle(String symbolicName) throws BundleException {
54 		Bundle bundle = getBundle(symbolicName);
55 		int state = bundle.getState();
56 		if (state == Bundle.ACTIVE) {
57 			return;
58 		}
59 		bundle.start(Bundle.START_TRANSIENT);
60 	}
61 
stopBundle(String symbolicName)62 	public void stopBundle(String symbolicName) throws BundleException {
63 		Bundle bundle = getBundle(symbolicName);
64 		bundle.stop();
65 	}
66 }
67