| 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.concurrent.ThreadPoolExecutor;
23
24 /**
25 * <a href="SerialDestination.java.html"><b><i>View Source</i></b></a>
26 *
27 * <p>
28 * Destination that delivers a message to a list of message listeners one at a
29 * time.
30 * </p>
31 *
32 * @author Michael C. Han
33 *
34 */
35 public class SerialDestination extends ArrayDispatcherDestination {
36
37 public SerialDestination(String name) {
38 super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
39 }
40
41 protected void dispatch(
42 final MessageListener[] listeners, final Message message) {
43
44 ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
45
46 Runnable runnable = new Runnable() {
47
48 public void run() {
49 for (MessageListener listener : listeners) {
50 listener.receive(message);
51 }
52 }
53
54 };
55
56 threadPoolExecutor.execute(runnable);
57 }
58
59 private static final int _WORKERS_CORE_SIZE = 1;
60
61 private static final int _WORKERS_MAX_SIZE = 1;
62
63 }