/**
* Copyright (c) 2009, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wso2.carbon.mashup.javascript.hostobjects.system;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.task.TaskDescription;
import org.apache.synapse.task.service.TaskManagementService;
import org.apache.axiom.om.OMElement;
import org.wso2.carbon.CarbonException;
import org.wso2.carbon.core.AbstractAdmin;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.lang.reflect.Method;
import java.lang.reflect.Field;
public class FunctionSchedulingAdminService extends AbstractAdmin implements TaskManagementService {
private static Log log = LogFactory.getLog(FunctionSchedulingAdminService.class);
private FunctionSchedulingManager functionSchedulingManager;
public FunctionSchedulingAdminService() {
functionSchedulingManager = FunctionSchedulingManager.getInstance();
}
public void addTaskDescription(TaskDescription taskDescription) {
try {
validateTaskDescription(taskDescription);
functionSchedulingManager.scheduleTask(taskDescription, getConfigContext());
} catch (CarbonException e) {
handleException(e.getMessage());
}
}
public void deleteTaskDescription(String taskName) {
validateName(taskName);
functionSchedulingManager.deleteTask(taskName, getConfigContext());
}
public void editTaskDescription(TaskDescription taskDescription) {
validateTaskDescription(taskDescription);
functionSchedulingManager.deleteTaskDescription(taskDescription.getName(), getConfigContext());
addTaskDescription(taskDescription);
}
public List<TaskDescription> getAllTaskDescriptions() {
List<TaskDescription> taskDescriptions = new ArrayList<TaskDescription>();
Iterator<TaskDescription> iterator = functionSchedulingManager.getAllTaskDescriptions(getConfigContext());
while (iterator.hasNext()) {
TaskDescription taskDescription = iterator.next();
if (taskDescription != null) {
taskDescriptions.add(taskDescription);
}
}
if (log.isDebugEnabled()) {
log.debug("All available Task based Scheduled Functions " + taskDescriptions);
}
return taskDescriptions;
}
public TaskDescription getTaskDescription(String taskName) {
validateName(taskName);
return functionSchedulingManager.getTaskDescription(taskName, getConfigContext());
}
public boolean isContains(String taskName) {
validateName(taskName);
return functionSchedulingManager.isContains(taskName, getConfigContext());
}
public List<String> getPropertyNames(String taskClass) {
List<String> names = new ArrayList<String>();
try {
Class clazz = Class.forName(taskClass.trim());
Method[] methods = clazz.getMethods();
Field[] fields = clazz.getDeclaredFields();
for (Method method : methods) {
if (method == null) {
continue;
}
String methodName = method.getName();
if (methodName == null) {
continue;
}
if (methodName.startsWith("set") && !"setTraceState".equals(methodName)) {
for (Field field : fields) {
if (field.getName().equalsIgnoreCase(methodName.substring(3))) {
names.add(field.getName());
break;
}
}
}
}
} catch (ClassNotFoundException e) {
handleException("Class " + taskClass + " not found in the path", e);
}
if (log.isDebugEnabled()) {
log.debug("Task class '" + taskClass + "' contains property Names : " + names);
}
return names;
}
private static void validateTaskDescription(TaskDescription description) {
if (description == null) {
handleException("Task Description can not be found.");
}
}
private static void validateTaskElement(OMElement taskElement) {
if (taskElement == null) {
handleException("Task Description OMElement can not be found.");
}
}
private static void validateName(String name) {
if (name == null || "".equals(name)) {
handleException("Name is null or empty");
}
}
private static void handleException(String msg) {
log.error(msg);
throw new IllegalArgumentException(msg);
}
private static void handleException(String msg, Throwable throwable) {
log.error(msg, throwable);
throw new RuntimeException(msg);
}
}