| SerialDestination.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portal.kernel.messaging;
21
22 import java.util.Set;
23 import java.util.concurrent.ThreadPoolExecutor;
24
25 /**
26 * <a href="SerialDestination.java.html"><b><i>View Source</i></b></a>
27 *
28 * <p>
29 * Destination that delivers a message to a list of message listeners one at a
30 * time.
31 * </p>
32 *
33 * @author Michael C. Han
34 *
35 */
36 public class SerialDestination extends ArrayDispatcherDestination {
37
38 public SerialDestination(String name) {
39 super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
40 }
41
42 protected void dispatch(
43 final Set<MessageListener> listeners, final Message message) {
44
45 ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
46
47 Runnable runnable = new Runnable() {
48
49 public void run() {
50 for (MessageListener listener : listeners) {
51 listener.receive(message);
52 }
53 }
54
55 };
56
57 threadPoolExecutor.execute(runnable);
58 }
59
60 private static final int _WORKERS_CORE_SIZE = 1;
61
62 private static final int _WORKERS_MAX_SIZE = 1;
63
64 }