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1   /**
2    * Copyright 2005-2011 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.ksb.messaging.web;
17  
18  import java.io.IOException;
19  import java.util.List;
20  
21  import javax.servlet.ServletException;
22  import javax.servlet.http.HttpServletRequest;
23  import javax.servlet.http.HttpServletResponse;
24  import javax.xml.namespace.QName;
25  
26  import org.apache.commons.lang.StringUtils;
27  import org.apache.struts.action.ActionForm;
28  import org.apache.struts.action.ActionForward;
29  import org.apache.struts.action.ActionMapping;
30  import org.apache.struts.action.ActionMessages;
31  import org.kuali.rice.core.api.config.property.ConfigContext;
32  import org.kuali.rice.ksb.api.KsbApiServiceLocator;
33  import org.kuali.rice.ksb.api.bus.Endpoint;
34  import org.kuali.rice.ksb.api.bus.ServiceBus;
35  import org.kuali.rice.ksb.messaging.service.BusAdminService;
36  import org.kuali.rice.ksb.service.KSBServiceLocator;
37  import org.kuali.rice.ksb.util.KSBConstants;
38  
39  
40  /**
41   * Struts action for interacting with the queue of messages.
42   *
43   * @author Kuali Rice Team (rice.collab@kuali.org)
44   */
45  public class ThreadPoolAction extends KSBAction {
46  
47      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ThreadPoolAction.class);
48  
49      public ActionForward start(ActionMapping mapping, ActionForm form, HttpServletRequest request,
50  	    HttpServletResponse response) throws IOException, ServletException {
51  	return mapping.findForward("basic");
52      }
53  
54      public ActionForward update(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
55  	    HttpServletResponse response) throws Exception {
56  	ThreadPoolForm form = (ThreadPoolForm)actionForm;
57  	if (form.getTimeIncrement() != null && form.getTimeIncrement().longValue() <= 0) {
58  	    form.setTimeIncrement(null);
59  	}
60  	if (form.getMaxRetryAttempts() != null && form.getMaxRetryAttempts().longValue() < 0) {
61  	    form.setMaxRetryAttempts(null);
62  	}
63  	if (form.isAllServers()) {
64  	    // if it's all servers, we need to find all of the BusAdmin services
65  	    QName serviceName = new QName(form.getApplicationId(), "busAdminService");
66  	    ServiceBus serviceBus = KsbApiServiceLocator.getServiceBus();
67  	    List<Endpoint> adminServices = serviceBus.getEndpoints(serviceName);
68  	    for (Endpoint adminEndpoint : adminServices) {
69  		try {
70  		    BusAdminService adminService = (BusAdminService)adminEndpoint.getService();
71  		    adminService.setCorePoolSize(form.getCorePoolSize());
72  		    adminService.setMaximumPoolSize(form.getMaximumPoolSize());
73  		    adminService.setConfigProperty(KSBConstants.Config.ROUTE_QUEUE_TIME_INCREMENT_KEY, (form.getTimeIncrement() == null ? null : form.getTimeIncrement().toString()));
74  		    adminService.setConfigProperty(KSBConstants.Config.ROUTE_QUEUE_MAX_RETRY_ATTEMPTS_KEY, (form.getMaxRetryAttempts() == null ? null : form.getMaxRetryAttempts().toString()));
75  		} catch (Exception e) {
76  		    LOG.error("Failed to set thread pool sizes for busAdminService at " + adminEndpoint.getServiceConfiguration().getEndpointUrl());
77  		}
78  	    }
79  	} else {
80  	    form.getThreadPool().setCorePoolSize(form.getCorePoolSize());
81  	    if (form.getMaximumPoolSize() < form.getCorePoolSize()) {
82  		form.setMaximumPoolSize(form.getCorePoolSize());
83  	    }
84  	    form.getThreadPool().setMaximumPoolSize(form.getMaximumPoolSize());
85  
86  	    if (form.getTimeIncrement() == null) {
87  		ConfigContext.getCurrentContextConfig().removeProperty(KSBConstants.Config.ROUTE_QUEUE_TIME_INCREMENT_KEY);
88  	    } else {
89  		ConfigContext.getCurrentContextConfig().putProperty(KSBConstants.Config.ROUTE_QUEUE_TIME_INCREMENT_KEY, form.getTimeIncrement().toString());
90  	    }
91  
92  	    if (form.getMaxRetryAttempts() == null) {
93  		ConfigContext.getCurrentContextConfig().removeProperty(KSBConstants.Config.ROUTE_QUEUE_MAX_RETRY_ATTEMPTS_KEY);
94  	    } else {
95  		ConfigContext.getCurrentContextConfig().putProperty(KSBConstants.Config.ROUTE_QUEUE_MAX_RETRY_ATTEMPTS_KEY, form.getMaxRetryAttempts().toString());
96  	    }
97  	}
98  	return mapping.findForward("basic");
99      }
100 
101     public ActionMessages establishRequiredState(HttpServletRequest request, ActionForm actionForm) throws Exception {
102 	ThreadPoolForm form = (ThreadPoolForm)actionForm;
103 	form.setThreadPool(KSBServiceLocator.getThreadPool());
104 	if (form.getCorePoolSize() == null) {
105 	    form.setCorePoolSize(form.getThreadPool().getCorePoolSize());
106 	}
107 	if (form.getMaximumPoolSize() == null) {
108 	    form.setMaximumPoolSize(form.getThreadPool().getMaximumPoolSize());
109 	}
110 	if (form.getTimeIncrement() == null) {
111 	    String timeIncrementValue = ConfigContext.getCurrentContextConfig().getProperty(KSBConstants.Config.ROUTE_QUEUE_TIME_INCREMENT_KEY);
112 	    if (!StringUtils.isEmpty(timeIncrementValue)) {
113 		form.setTimeIncrement(Long.parseLong(timeIncrementValue));
114 	    }
115 	}
116 	if (form.getMaxRetryAttempts() == null) {
117 	    String maxRetryAttemptsValue = ConfigContext.getCurrentContextConfig().getProperty(KSBConstants.Config.ROUTE_QUEUE_MAX_RETRY_ATTEMPTS_KEY);
118 	    if (!StringUtils.isEmpty(maxRetryAttemptsValue)) {
119 		form.setMaxRetryAttempts(Long.parseLong(maxRetryAttemptsValue));
120 	    }
121 	}
122 	return null;
123     }
124 
125 }