org.fabric3.implementation.timer.introspection.TimerImplementationProcessor Maven / Gradle / Ivy
/*
* Fabric3
* Copyright (c) 2009-2015 Metaform Systems
*
* 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.fabric3.implementation.timer.introspection;
import org.fabric3.api.implementation.timer.annotation.Timer;
import org.fabric3.api.implementation.timer.model.TimerData;
import org.fabric3.api.implementation.timer.model.TimerImplementation;
import org.fabric3.api.implementation.timer.model.TimerType;
import org.fabric3.api.model.type.java.InjectingComponentType;
import org.fabric3.api.model.type.java.JavaImplementation;
import org.fabric3.implementation.java.introspection.AbstractPojoImplementationProcessor;
import org.fabric3.implementation.java.introspection.JavaImplementationIntrospector;
import org.fabric3.spi.introspection.IntrospectionContext;
import org.fabric3.spi.introspection.java.IntrospectionHelper;
import org.fabric3.spi.introspection.java.InvalidAnnotation;
import org.fabric3.spi.introspection.java.contract.JavaContractProcessor;
import org.oasisopen.sca.annotation.EagerInit;
import org.oasisopen.sca.annotation.Reference;
/**
*
*/
@EagerInit
public class TimerImplementationProcessor extends AbstractPojoImplementationProcessor {
public TimerImplementationProcessor(@Reference JavaContractProcessor processor,
@Reference JavaImplementationIntrospector introspector,
@Reference IntrospectionHelper helper) {
super(processor, introspector, helper);
}
protected JavaImplementation createImplementation(Class clazz, IntrospectionContext context) {
TimerImplementation implementation = new TimerImplementation();
implementation.setImplementationClass(clazz.getName());
InjectingComponentType componentType = new InjectingComponentType(clazz.getName());
implementation.setComponentType(componentType);
TimerData data = new TimerData();
Timer annotation = clazz.getAnnotation(Timer.class);
data.setInitialDelay(annotation.initialDelay());
data.setPoolName(annotation.pool());
TimerType type = annotation.type();
data.setType(type);
switch (type) {
case ONCE:
long fireOnce = annotation.fireOnce();
if (fireOnce == TimerData.UNSPECIFIED) {
InvalidAnnotation error = new InvalidAnnotation("The fireOnce attribute must be specified for the timer", clazz, annotation, clazz);
context.addError(error);
}
data.setFireOnce(fireOnce);
break;
case FIXED_RATE:
long fixedRate = annotation.fixedRate();
if (fixedRate == TimerData.UNSPECIFIED) {
InvalidAnnotation error = new InvalidAnnotation("The fixedRate attribute must be specified for the timer", clazz, annotation, clazz);
context.addError(error);
}
data.setFixedRate(fixedRate);
break;
case INTERVAL:
long repeatInterval = annotation.repeatInterval();
if (repeatInterval == TimerData.UNSPECIFIED) {
InvalidAnnotation error = new InvalidAnnotation("The repeatInterval attribute must be specified for the timer", clazz, annotation, clazz);
context.addError(error);
}
data.setRepeatInterval(repeatInterval);
break;
case RECURRING:
if (!isInterval(clazz)) {
InvalidAnnotation error = new InvalidAnnotation("Timer class must implement an interval method", clazz, annotation, clazz);
context.addError(error);
} else {
data.setIntervalMethod(true);
}
break;
}
implementation.setTimerData(data);
return implementation;
}
private boolean isInterval(Class clazz) {
try {
clazz.getMethod("nextInterval");
return true;
} catch (NoSuchMethodException e) {
// ignore
}
return false;
}
}