Source Code Cross Referenced for AdminObjectFactory.java in  » EJB-Server-JBoss-4.2.1 » connector » org » jboss » resource » deployment » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » connector » org.jboss.resource.deployment 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * JBoss, Home of Professional Open Source.
003:         * Copyright 2006, Red Hat Middleware LLC, and individual contributors
004:         * as indicated by the @author tags. See the copyright.txt file in the
005:         * distribution for a full listing of individual contributors.
006:         *
007:         * This is free software; you can redistribute it and/or modify it
008:         * under the terms of the GNU Lesser General Public License as
009:         * published by the Free Software Foundation; either version 2.1 of
010:         * the License, or (at your option) any later version.
011:         *
012:         * This software is distributed in the hope that it will be useful,
013:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015:         * Lesser General Public License for more details.
016:         *
017:         * You should have received a copy of the GNU Lesser General Public
018:         * License along with this software; if not, write to the Free
019:         * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021:         */
022:        package org.jboss.resource.deployment;
023:
024:        import java.beans.PropertyEditor;
025:        import java.beans.PropertyEditorManager;
026:        import java.lang.reflect.InvocationTargetException;
027:        import java.lang.reflect.Method;
028:        import java.util.Collection;
029:        import java.util.Iterator;
030:        import java.util.Map;
031:        import java.util.Properties;
032:
033:        import javax.management.ObjectName;
034:
035:        import org.jboss.deployment.DeploymentException;
036:        import org.jboss.logging.Logger;
037:        import org.jboss.resource.metadata.AdminObjectMetaData;
038:        import org.jboss.resource.metadata.ConfigPropertyMetaData;
039:
040:        /**
041:         * An admin object factory
042:         *
043:         * @author  <a href="adrian@jboss.com">Adrian Brock</a>
044:         * @version $Revision: 57189 $
045:         */
046:        public class AdminObjectFactory {
047:            /** The logger */
048:            private static final Logger log = Logger
049:                    .getLogger(AdminObjectFactory.class);
050:
051:            public static Object createAdminObject(String jndiName,
052:                    ObjectName rarName, AdminObjectMetaData aomd,
053:                    Properties properties) throws Exception {
054:                boolean trace = log.isTraceEnabled();
055:
056:                // Get the current classloader
057:                ClassLoader cl = Thread.currentThread().getContextClassLoader();
058:
059:                if (trace)
060:                    log.trace("Creating AdminObject '" + jndiName
061:                            + "' metadata=" + aomd + " rar=" + rarName
062:                            + " properties=" + properties + " classloader="
063:                            + cl);
064:
065:                // The interface class
066:                String interfaceName = aomd.getAdminObjectInterfaceClass();
067:                // Load the interface class class
068:                if (trace)
069:                    log.trace("AdminObject '" + jndiName
070:                            + "' loading interface=" + interfaceName);
071:                Class interfaceClass = cl.loadClass(interfaceName);
072:
073:                // Determine the implementation class
074:                String implName = aomd.getAdminObjectImplementationClass();
075:                if (implName == null)
076:                    throw new DeploymentException(
077:                            "No implementation class for admin object '"
078:                                    + interfaceClass + "' ra=" + rarName);
079:
080:                // Load the implementation class
081:                if (trace)
082:                    log.trace("AdminObject '" + jndiName
083:                            + "' loading implementation=" + implName);
084:                Class implClass = cl.loadClass(implName);
085:                if (interfaceClass.isAssignableFrom(implClass) == false)
086:                    throw new DeploymentException(implClass.getName()
087:                            + " is not a '" + interfaceClass + "' ra="
088:                            + rarName);
089:
090:                Object result = implClass.newInstance();
091:                if (trace)
092:                    log.trace("AdminObject '" + jndiName
093:                            + "' created instance=" + result);
094:
095:                // Apply values from the ra.xml 
096:                Collection raProperties = aomd.getProperties();
097:                if (raProperties != null && raProperties.size() != 0) {
098:                    for (Iterator i = raProperties.iterator(); i.hasNext();) {
099:                        ConfigPropertyMetaData cpmd = (ConfigPropertyMetaData) i
100:                                .next();
101:                        String name = cpmd.getName();
102:                        String value = cpmd.getValue();
103:                        if (value != null && value.length() > 0) {
104:                            if (properties.containsKey(name)) {
105:                                if (trace)
106:                                    log
107:                                            .trace("AdminObject '"
108:                                                    + jndiName
109:                                                    + "' property="
110:                                                    + name
111:                                                    + " IGNORING value="
112:                                                    + value
113:                                                    + " specified in MBean properties.");
114:                            } else {
115:                                // Load the property class as defined in the meta data
116:                                String typeName = cpmd.getType();
117:                                if (trace)
118:                                    log.trace("AdminObject '" + jndiName
119:                                            + "' property=" + name
120:                                            + " loading class=" + typeName);
121:                                Class type = cl.loadClass(typeName);
122:
123:                                // Find the property editor for this class
124:                                PropertyEditor editor = PropertyEditorManager
125:                                        .findEditor(type);
126:                                if (editor == null)
127:                                    throw new DeploymentException(
128:                                            "No property editor found for property '"
129:                                                    + name + " class='" + type
130:                                                    + "' for admin object '"
131:                                                    + interfaceClass + "' ra="
132:                                                    + rarName);
133:                                editor.setAsText(value);
134:                                Object object = editor.getValue();
135:
136:                                try {
137:                                    String setter = "set"
138:                                            + Character.toUpperCase(name
139:                                                    .charAt(0));
140:                                    if (name.length() > 1)
141:                                        setter = setter.concat(name
142:                                                .substring(1));
143:                                    Method method = implClass.getMethod(setter,
144:                                            new Class[] { type });
145:                                    if (trace)
146:                                        log.trace("AdminObject '" + jndiName
147:                                                + "' property=" + name
148:                                                + " set=" + object);
149:                                    method.invoke(result,
150:                                            new Object[] { object });
151:                                } catch (InvocationTargetException e) {
152:                                    DeploymentException
153:                                            .rethrowAsDeploymentException(
154:                                                    "Error for property '"
155:                                                            + name
156:                                                            + "' class="
157:                                                            + implClass
158:                                                            + "' for admin object '"
159:                                                            + interfaceClass
160:                                                            + "' ra=" + rarName,
161:                                                    e.getTargetException());
162:                                } catch (Throwable t) {
163:                                    DeploymentException
164:                                            .rethrowAsDeploymentException(
165:                                                    "Error for property '"
166:                                                            + name
167:                                                            + "' class="
168:                                                            + implClass
169:                                                            + "' for admin object '"
170:                                                            + interfaceClass
171:                                                            + "' ra=" + rarName,
172:                                                    t);
173:                                }
174:                            }
175:                        }
176:                    }
177:                }
178:
179:                // Apply the properties
180:                if (properties != null) {
181:                    for (Iterator i = properties.entrySet().iterator(); i
182:                            .hasNext();) {
183:                        Map.Entry property = (Map.Entry) i.next();
184:                        String name = (String) property.getKey();
185:                        String value = (String) property.getValue();
186:                        if (trace)
187:                            log.trace("AdminObject '" + jndiName
188:                                    + "' property=" + name + " value=" + value);
189:
190:                        // Pick up the property metadata
191:                        ConfigPropertyMetaData cpmd = aomd.getProperty(name);
192:                        if (cpmd == null)
193:                            throw new DeploymentException("No property '"
194:                                    + name + "' for admin object '"
195:                                    + interfaceClass + "' ra=" + rarName);
196:                        if (trace)
197:                            log.trace("AdminObject '" + jndiName
198:                                    + "' property=" + name + " metadata="
199:                                    + cpmd);
200:
201:                        // Load the property class as defined in the meta data
202:                        String typeName = cpmd.getType();
203:                        if (trace)
204:                            log.trace("AdminObject '" + jndiName
205:                                    + "' property=" + name + " loading class="
206:                                    + typeName);
207:                        Class type = cl.loadClass(typeName);
208:
209:                        // Find the property editor for this class
210:                        PropertyEditor editor = PropertyEditorManager
211:                                .findEditor(type);
212:                        if (editor == null)
213:                            throw new DeploymentException(
214:                                    "No property editor found for property '"
215:                                            + name + " class='" + type
216:                                            + "' for admin object '"
217:                                            + interfaceClass + "' ra="
218:                                            + rarName);
219:                        editor.setAsText(value);
220:                        Object object = editor.getValue();
221:
222:                        try {
223:                            String setter = "set"
224:                                    + Character.toUpperCase(name.charAt(0));
225:                            if (name.length() > 1)
226:                                setter = setter.concat(name.substring(1));
227:                            Method method = implClass.getMethod(setter,
228:                                    new Class[] { type });
229:                            if (trace)
230:                                log.trace("AdminObject '" + jndiName
231:                                        + "' property=" + name + " set="
232:                                        + object);
233:                            method.invoke(result, new Object[] { object });
234:                        } catch (InvocationTargetException e) {
235:                            DeploymentException.rethrowAsDeploymentException(
236:                                    "Error for property '" + name + "' class="
237:                                            + implClass
238:                                            + "' for admin object '"
239:                                            + interfaceClass + "' ra="
240:                                            + rarName, e.getTargetException());
241:                        } catch (Throwable t) {
242:                            DeploymentException.rethrowAsDeploymentException(
243:                                    "Error for property '" + name + "' class="
244:                                            + implClass
245:                                            + "' for admin object '"
246:                                            + interfaceClass + "' ra="
247:                                            + rarName, t);
248:                        }
249:                    }
250:                }
251:
252:                return result;
253:            }
254:        }
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