Source Code Cross Referenced for AbstractComponent.java in  » ESB » open-esb » com » sun » jbi » framework » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ESB » open esb » com.sun.jbi.framework 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * BEGIN_HEADER - DO NOT EDIT
003:         *
004:         * The contents of this file are subject to the terms
005:         * of the Common Development and Distribution License
006:         * (the "License").  You may not use this file except
007:         * in compliance with the License.
008:         *
009:         * You can obtain a copy of the license at
010:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
011:         * See the License for the specific language governing
012:         * permissions and limitations under the License.
013:         *
014:         * When distributing Covered Code, include this CDDL
015:         * HEADER in each file and include the License file at
016:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
017:         * If applicable add the following below this CDDL HEADER,
018:         * with the fields enclosed by brackets "[]" replaced with
019:         * your own identifying information: Portions Copyright
020:         * [year] [name of copyright owner]
021:         */
022:
023:        /*
024:         * @(#)AbstractComponent.java
025:         * Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
026:         *
027:         * END_HEADER - DO NOT EDIT
028:         */
029:        package com.sun.jbi.framework;
030:
031:        import java.util.logging.Logger;
032:
033:        import javax.jbi.component.Component;
034:        import javax.jbi.component.ComponentContext;
035:        import javax.jbi.component.ComponentLifeCycle;
036:        import javax.jbi.component.ServiceUnitManager;
037:
038:        /**
039:         * This is an abstract class that all test components can inherit from. The
040:         * purpose for this class is to minimize the impact of SPI changes to the
041:         * test components. Dummy methods can be implemented here and only components
042:         * that need real working versions of those methods need to implement them.
043:         *
044:         * @author Sun Microsystems, Inc.
045:         */
046:        public abstract class AbstractComponent implements  Component,
047:                ComponentLifeCycle, ServiceUnitManager {
048:            /**
049:             * Local copy of the component name.
050:             */
051:            protected String mComponentName;
052:
053:            /**
054:             * Type of component, defaults to "Component", but can be set by extending
055:             * class to  "Binding" or "Engine".
056:             */
057:            protected String mComponentType = "Component";
058:
059:            /**
060:             * Local handle to the ComponentContext.
061:             */
062:            protected ComponentContext mContext;
063:
064:            /**
065:             * Logger instance.
066:             */
067:            protected Logger mLog = Logger
068:                    .getLogger("com.sun.jbi.framework.test");
069:
070:            //
071:            // Component methods
072:            //
073:
074:            /**
075:             * Get the ComponentLifeCycle implementation instance for this Binding
076:             * Component.
077:             * @return the life cycle implementation instance.
078:             */
079:            public ComponentLifeCycle getLifeCycle() {
080:                mLog.info(mComponentType + " getLifeCycle called");
081:                return this ;
082:            }
083:
084:            /**
085:             * Get the ServiceUnitManager implementation instance for this Binding
086:             * Component.
087:             * @return the Service Unit manager implementation instance.
088:             */
089:            public ServiceUnitManager getServiceUnitManager() {
090:                mLog.info(mComponentType + " " + mComponentName
091:                        + " getServiceUnitManager called");
092:                return this ;
093:            }
094:
095:            /**
096:             * Resolve descriptor details for the specified reference, which is for a
097:             * service provided by this component.
098:             * @param ref the endpoint reference to be resolved.
099:             * @return the description for the specified reference.
100:             */
101:            public org.w3c.dom.Document getServiceDescription(
102:                    javax.jbi.servicedesc.ServiceEndpoint ref) {
103:                mLog.info(mComponentType + " " + mComponentName
104:                        + " getServiceDescription called");
105:                return null;
106:            }
107:
108:            /**
109:             * This method is called by JBI to check if this component, in the role of
110:             * provider of the service indicated by the given exchange, can actually 
111:             * perform the operation desired. 
112:             */
113:            public boolean isExchangeWithConsumerOkay(
114:                    javax.jbi.servicedesc.ServiceEndpoint endpoint,
115:                    javax.jbi.messaging.MessageExchange exchange) {
116:                mLog.info(mComponentType + " " + mComponentName
117:                        + " isExchangeWithConsumerOkay called");
118:                return true;
119:            }
120:
121:            /**
122:             * This method is called by JBI to check if this component, in the role of
123:             * consumer of the service indicated by the given exchange, can actually 
124:             * interact with the the provider completely. 
125:             */
126:            public boolean isExchangeWithProviderOkay(
127:                    javax.jbi.servicedesc.ServiceEndpoint endpoint,
128:                    javax.jbi.messaging.MessageExchange exchange) {
129:                mLog.info(mComponentType + " " + mComponentName
130:                        + " isExchangeWithProviderOkay called");
131:                return true;
132:            }
133:
134:            /**
135:             * Resolve the given endpoint reference, given the capabilities of the
136:             * given consumer. This is called by JBI when it is attempting to resolve
137:             * the given endpoint reference on behalf of a component.
138:             * @param epr the endpoint reference, in some XML dialect understood by the
139:             * appropriate component (usually a Binding Component).
140:             * @return the service endpoint for the endpoint reference;
141:             * <code>null</code> if the endpoint reference cannot be resolved.
142:             */
143:            public javax.jbi.servicedesc.ServiceEndpoint resolveEndpointReference(
144:                    org.w3c.dom.DocumentFragment epr) {
145:                mLog.info(mComponentType + " " + mComponentName
146:                        + " resolveEndpointReference called");
147:                return null;
148:            }
149:
150:            //
151:            // ComponentLifeCycle methods
152:            //
153:
154:            /**
155:             * Initialize the Binding Component.
156:             * @param context the JBI component context created by the JBI framework.
157:             * @throws javax.jbi.JBIException if an error occurs.
158:             */
159:            public void init(ComponentContext context)
160:                    throws javax.jbi.JBIException {
161:            }
162:
163:            /**
164:             * Get the JMX ObjectName for any additional MBean for this BC. This
165:             * implementation always returns null.
166:             * @return javax.management.ObjectName is always null.
167:             */
168:            public javax.management.ObjectName getExtensionMBeanName() {
169:                mLog.info(mComponentType + " " + mComponentName
170:                        + " getExtensionMBeanName called");
171:                return null;
172:            }
173:
174:            /**
175:             * Start the Binding Component.
176:             * @throws javax.jbi.JBIException if an error occurs.
177:             */
178:            public void start() throws javax.jbi.JBIException {
179:                mLog.info(mComponentType + " " + mComponentName
180:                        + " start called");
181:            }
182:
183:            /**
184:             * Stop the Binding Component.
185:             * @throws javax.jbi.JBIException if an error occurs.
186:             */
187:            public void stop() throws javax.jbi.JBIException {
188:                mLog.info(mComponentType + " " + mComponentName
189:                        + " stop called");
190:            }
191:
192:            /**
193:             * Shut down the Binding Component.
194:             * @throws javax.jbi.JBIException if an error occurs.
195:             */
196:            public void shutDown() throws javax.jbi.JBIException {
197:                mLog.info(mComponentType + " " + mComponentName
198:                        + " shutDown called");
199:            }
200:
201:            //
202:            // ServiceUnitManager methods
203:            //
204:
205:            /**
206:             * Deploy a Service Unit.
207:             * @param serviceUnitName the name of the Service Unit being deployed.
208:             * @param serviceUnitRootPath the full path to the Service Unit artifact
209:             * root directory.
210:             * @return a deployment status message.
211:             * @throws javax.jbi.management.DeploymentException if the deployment
212:             * operation is unsuccessful.
213:             */
214:            public String deploy(String serviceUnitName,
215:                    String serviceUnitRootPath)
216:                    throws javax.jbi.management.DeploymentException {
217:                mLog.info(mComponentType + " " + mComponentName
218:                        + " deployed Service Unit " + serviceUnitName);
219:                return "Successfully deployed " + serviceUnitName;
220:            }
221:
222:            /**
223:             * Initialize the deployment.
224:             * @param serviceUnitName the name of the Service Unit being initialized.
225:             * @param serviceUnitRootPath the full path to the Service Unit artifact
226:             * root directory.
227:             * @throws javax.jbi.management.DeploymentException if the Service Unit is
228:             * not deployed, or is in an incorrect state.
229:             */
230:            public void init(String serviceUnitName, String serviceUnitRootPath)
231:                    throws javax.jbi.management.DeploymentException {
232:                mLog.info(mComponentType + " " + mComponentName
233:                        + " initialized Service Unit " + serviceUnitName);
234:            }
235:
236:            /**
237:             * Shut down the deployment.
238:             * @param serviceUnitName the name of the Service Unit being shut down.
239:             * @throws javax.jbi.management.DeploymentException if the Service Unit
240:             * is not deployed, or is in an incorrect state.
241:             */
242:            public void shutDown(String serviceUnitName)
243:                    throws javax.jbi.management.DeploymentException {
244:                mLog.info(mComponentType + " " + mComponentName
245:                        + " shut down Service Unit " + serviceUnitName);
246:            }
247:
248:            /**
249:             * Start the deployment.
250:             * @param serviceUnitName the name of the Service Unit being started.
251:             * @throws javax.jbi.management.DeploymentException if the Service Unit
252:             * is not deployed, or is in an incorrect state.
253:             */
254:            public void start(String serviceUnitName)
255:                    throws javax.jbi.management.DeploymentException {
256:                mLog.info(mComponentType + " " + mComponentName
257:                        + " started Service Unit " + serviceUnitName);
258:            }
259:
260:            /**
261:             * Stop the deployment.
262:             * @param serviceUnitName the name of the Service Unit being stopped.
263:             * @throws javax.jbi.management.DeploymentException if the Service Unit
264:             * is not deployed, or is in an incorrect state.
265:             */
266:            public void stop(String serviceUnitName)
267:                    throws javax.jbi.management.DeploymentException {
268:                mLog.info(mComponentType + " " + mComponentName
269:                        + " stopped Service Unit " + serviceUnitName);
270:            }
271:
272:            /**
273:             * Undeploy a Service Unit from the component.
274:             * @param serviceUnitName the name of the Service Unit being undeployed.
275:             * @param serviceUnitRootPath the full path to the Service Unit artifact
276:             * root directory.
277:             * @return an undeployment status message.
278:             * @throws javax.jbi.management.DeploymentException if the undeployment
279:             * operation is unsuccessful.
280:             */
281:            public String undeploy(String serviceUnitName,
282:                    String serviceUnitRootPath)
283:                    throws javax.jbi.management.DeploymentException {
284:                mLog.info(mComponentType + " " + mComponentName
285:                        + " undeployed Service Unit " + serviceUnitName);
286:                return "Successfully undeployed " + serviceUnitName;
287:            }
288:        }
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