/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.jooby.internal.quartz;
import static java.util.Objects.requireNonNull;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import javax.inject.Inject;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;
import com.google.inject.Injector;
public class ReflectiveJob implements Job {
private Injector injector;
@Inject
public ReflectiveJob(final Injector injector) {
this.injector = requireNonNull(injector, "An injector is required.");
}
@Override
public void execute(final JobExecutionContext context) throws JobExecutionException {
JobDetail detail = context.getJobDetail();
JobKey key = detail.getKey();
try {
String[] names = key.getName().split("\\.");
String classname = key.getGroup() + "." + names[0];
Class<?> loadedClass = getClass().getClassLoader().loadClass(classname);
String methodname = names[1];
Object job = this.injector.getInstance(loadedClass);
Method method = Arrays.stream(loadedClass.getDeclaredMethods())
.filter(m-> m.getName().equals(methodname))
.findFirst()
.get();
final Object result;
if (method.getParameterCount() == 1) {
result = method.invoke(job, context);
} else {
result = method.invoke(job);
}
if (method.getReturnType() != void.class) {
context.setResult(result);
}
} catch (InvocationTargetException ex) {
throw new JobExecutionException("Job execution resulted in error: " + key, ex.getCause());
} catch (Exception ex) {
throw new JobExecutionException("Job execution resulted in error: " + key, ex);
}
}
}