/**
* 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.apache.camel.bam;
import java.util.Date;
import org.apache.camel.bam.model.ActivityState;
import org.apache.camel.bam.model.ProcessInstance;
import org.apache.camel.bam.rules.ActivityRules;
import org.apache.camel.bam.rules.TemporalRule;
import org.apache.camel.util.ObjectHelper;
import static org.apache.camel.util.ObjectHelper.equal;
/**
* @version $Revision: 630591 $
*/
public abstract class TimeExpression {
private ActivityRules activityRules;
private ActivityBuilder builder;
private ActivityLifecycle lifecycle;
public TimeExpression(ActivityBuilder builder, ActivityLifecycle lifecycle) {
this.lifecycle = lifecycle;
this.builder = builder;
this.activityRules = builder.getActivityRules();
}
public boolean isActivityLifecycle(ActivityRules activityRules, ActivityLifecycle lifecycle) {
return equal(activityRules, this.activityRules) && equal(lifecycle, this.lifecycle);
}
/**
* Creates a new temporal rule on this expression and the other expression
*/
public TemporalRule after(TimeExpression expression) {
TemporalRule rule = new TemporalRule(expression, this);
rule.getSecond().getActivityRules().addRule(rule);
return rule;
}
public Date evaluate(ProcessInstance processInstance) {
ActivityState state = processInstance.getActivityState(activityRules);
if (state != null) {
return evaluate(processInstance, state);
}
return null;
}
public abstract Date evaluate(ProcessInstance instance, ActivityState state);
// Properties
//-------------------------------------------------------------------------
public ActivityBuilder getBuilder() {
return builder;
}
public ActivityRules getActivityRules() {
return activityRules;
}
public ActivityLifecycle getLifecycle() {
return lifecycle;
}
public ActivityState getActivityState(ProcessInstance instance) {
return instance.getActivityState(activityRules);
}
public ActivityState getOrCreateActivityState(ProcessInstance instance) {
return instance.getOrCreateActivityState(activityRules);
}
}