1 /*
2 * $Id: ProfilingActivationInterceptor.java 651946 2008-04-27 13:41:38Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 package org.apache.struts2.interceptor;
23
24 import com.opensymphony.xwork2.ActionInvocation;
25 import com.opensymphony.xwork2.inject.Inject;
26 import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
27 import com.opensymphony.xwork2.util.profiling.UtilTimerStack;
28
29 import org.apache.struts2.StrutsConstants;
30
31 /**
32 * <!-- START SNIPPET: description -->
33 *
34 * Allows profiling to be enabled or disabled via request parameters, when
35 * devMode is enabled.
36 *
37 * <!-- END SNIPPET: description -->
38 *
39 *
40 * <!-- START SNIPPET: parameters -->
41 *
42 * <ul>
43 * <li>profilingKey</li>
44 * </ul>
45 *
46 * <!-- END SNIPPET: parameters -->
47 *
48 * <!-- START SNIPPET: extending -->
49 *
50 * none
51 *
52 * <!-- END SNIPPET: extending -->
53 *
54 * <pre>
55 * <!-- START SNIPPET: example -->
56 * // to change the profiling key
57 * <action ...>
58 * ...
59 * <interceptor-ref name="profiling">
60 * <param name="profilingKey">profilingKey</param>
61 * </interceptor-ref>
62 * ...
63 * </action>
64 * <!-- END SNIPPET: example -->
65 * </pre>
66 *
67 * @version $Date: 2008-04-27 09:41:38 -0400 (Sun, 27 Apr 2008) $ $Id: ProfilingActivationInterceptor.java 651946 2008-04-27 13:41:38Z apetrelli $
68 */
69 public class ProfilingActivationInterceptor extends AbstractInterceptor {
70
71 private String profilingKey = "profiling";
72 private boolean devMode;
73
74 /**
75 * @return the profilingKey
76 */
77 public String getProfilingKey() {
78 return profilingKey;
79 }
80
81 /**
82 * @param profilingKey the profilingKey to set
83 */
84 public void setProfilingKey(String profilingKey) {
85 this.profilingKey = profilingKey;
86 }
87
88 @Inject(StrutsConstants.STRUTS_DEVMODE)
89 public void setDevMode(String mode) {
90 this.devMode = "true".equals(mode);
91 }
92
93 @Override
94 public String intercept(ActionInvocation invocation) throws Exception {
95 if (devMode) {
96 Object val = invocation.getInvocationContext().getParameters().get(profilingKey);
97 if (val != null) {
98 String sval = (val instanceof String ? (String)val : ((String[])val)[0]);
99 boolean enable = "yes".equalsIgnoreCase(sval) || "true".equalsIgnoreCase(sval);
100 UtilTimerStack.setActive(enable);
101 invocation.getInvocationContext().getParameters().remove(profilingKey);
102 }
103 }
104 return invocation.invoke();
105
106 }
107
108 }
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