Source Code Cross Referenced for RequestHandledEvent.java in  » J2EE » spring-framework-2.0.6 » org » springframework » web » context » support » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.web.context.support 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2002-2005 the original author or authors.
003:         * 
004:         * Licensed under the Apache License, Version 2.0 (the "License");
005:         * you may not use this file except in compliance with the License.
006:         * You may obtain a copy of the License at
007:         * 
008:         *      http://www.apache.org/licenses/LICENSE-2.0
009:         * 
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS,
012:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013:         * See the License for the specific language governing permissions and
014:         * limitations under the License.
015:         */
016:
017:        package org.springframework.web.context.support;
018:
019:        import org.springframework.context.ApplicationEvent;
020:
021:        /**
022:         * Event raised when a request is handled within an ApplicationContext.
023:         *
024:         * <p>Supported by Spring's own FrameworkServlet (through a specific
025:         * ServletRequestHandledEvent subclass), but can also be raised by any
026:         * other web component. Used, for example, by Spring's out-of-the-box
027:         * PerformanceMonitorListener.
028:         *
029:         * @author Rod Johnson
030:         * @author Juergen Hoeller
031:         * @since January 17, 2001
032:         * @see ServletRequestHandledEvent
033:         * @see PerformanceMonitorListener
034:         * @see org.springframework.web.servlet.FrameworkServlet
035:         * @see org.springframework.context.ApplicationContext#publishEvent
036:         */
037:        public class RequestHandledEvent extends ApplicationEvent {
038:
039:            /** Session id that applied to the request, if any */
040:            private String sessionId;
041:
042:            /** Usually the UserPrincipal */
043:            private String userName;
044:
045:            /** Request processing time */
046:            private final long processingTimeMillis;
047:
048:            /** Cause of failure, if any */
049:            private Throwable failureCause;
050:
051:            /**
052:             * Create a new RequestHandledEvent with session information.
053:             * @param source the component that published the event
054:             * @param sessionId the id of the HTTP session, if any
055:             * @param userName the name of the user that was associated with the
056:             * request, if any (usually the UserPrincipal)
057:             * @param processingTimeMillis the processing time of the request in milliseconds
058:             */
059:            public RequestHandledEvent(Object source, String sessionId,
060:                    String userName, long processingTimeMillis) {
061:                super (source);
062:                this .sessionId = sessionId;
063:                this .userName = userName;
064:                this .processingTimeMillis = processingTimeMillis;
065:            }
066:
067:            /**
068:             * Create a new RequestHandledEvent with session information.
069:             * @param source the component that published the event
070:             * @param sessionId the id of the HTTP session, if any
071:             * @param userName the name of the user that was associated with the
072:             * request, if any (usually the UserPrincipal)
073:             * @param processingTimeMillis the processing time of the request in milliseconds
074:             * @param failureCause the cause of failure, if any
075:             */
076:            public RequestHandledEvent(Object source, String sessionId,
077:                    String userName, long processingTimeMillis,
078:                    Throwable failureCause) {
079:
080:                this (source, sessionId, userName, processingTimeMillis);
081:                this .failureCause = failureCause;
082:            }
083:
084:            /**
085:             * Return the processing time of the request in milliseconds.
086:             */
087:            public long getProcessingTimeMillis() {
088:                return processingTimeMillis;
089:            }
090:
091:            /**
092:             * Return the id of the HTTP session, if any.
093:             */
094:            public String getSessionId() {
095:                return sessionId;
096:            }
097:
098:            /**
099:             * Return the name of the user that was associated with the request
100:             * (usually the UserPrincipal).
101:             * @see javax.servlet.http.HttpServletRequest#getUserPrincipal()
102:             */
103:            public String getUserName() {
104:                return userName;
105:            }
106:
107:            /**
108:             * Return whether the request failed.
109:             */
110:            public boolean wasFailure() {
111:                return (this .failureCause != null);
112:            }
113:
114:            /**
115:             * Return the cause of failure, if any.
116:             */
117:            public Throwable getFailureCause() {
118:                return failureCause;
119:            }
120:
121:            /**
122:             * Return a short description of this event, only involving
123:             * the most important context data.
124:             */
125:            public String getShortDescription() {
126:                StringBuffer sb = new StringBuffer();
127:                sb.append("session=[").append(this .sessionId).append("]; ");
128:                sb.append("user=[").append(this .userName).append("]; ");
129:                return sb.toString();
130:            }
131:
132:            /**
133:             * Return a full description of this event, involving
134:             * all available context data.
135:             */
136:            public String getDescription() {
137:                StringBuffer sb = new StringBuffer();
138:                sb.append("session=[").append(this .sessionId).append("]; ");
139:                sb.append("user=[").append(this .userName).append("]; ");
140:                sb.append("time=[").append(this .processingTimeMillis).append(
141:                        "ms]; ");
142:                sb.append("status=[");
143:                if (!wasFailure()) {
144:                    sb.append("OK");
145:                } else {
146:                    sb.append("failed: ").append(this .failureCause);
147:                }
148:                sb.append(']');
149:                return sb.toString();
150:            }
151:
152:            public String toString() {
153:                return ("RequestHandledEvent: " + getDescription());
154:            }
155:
156:        }
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