Package: OSGiHandler

OSGiHandler

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1: /*
2: * Copyright (c) 2009, 2017 Oracle and/or its affiliates. All rights reserved.
3: *
4: * This program and the accompanying materials are made available under the
5: * terms of the Eclipse Public License v. 2.0, which is available at
6: * http://www.eclipse.org/legal/epl-2.0.
7: *
8: * This Source Code may also be made available under the following Secondary
9: * Licenses when the conditions for such availability set forth in the
10: * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
11: * version 2 with the GNU Classpath Exception, which is available at
12: * https://www.gnu.org/software/classpath/license.html.
13: *
14: * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
15: */
16:
17: package org.glassfish.grizzly.osgi.httpservice;
18:
19: import java.util.concurrent.locks.ReentrantReadWriteLock;
20:
21: /**
22: * Abstract OSGi {@link org.glassfish.grizzly.http.server.HttpHandler}.
23: * <p/>
24: * Defines locking model for processing and removal of handler.
25: *
26: * @author Hubert Iwaniuk
27: */
28: public interface OSGiHandler {
29: /**
30: * Processing lock.
31: * <p/>
32: * {@link ReentrantReadWriteLock.ReadLock} can be obtained by concurrent threads at the same time.
33: *
34: * @return Processing lock.
35: */
36: ReentrantReadWriteLock.ReadLock getProcessingLock();
37:
38: /**
39: * Removal lock.
40: * <p/>
41: * {@link ReentrantReadWriteLock.WriteLock} can be obtained only by one thread, blocks {@link #getProcessingLock()}.
42: *
43: * @return Removal lock.
44: * @see #getProcessingLock()
45: * @see ReentrantReadWriteLock.WriteLock
46: */
47: ReentrantReadWriteLock.WriteLock getRemovalLock();
48: }