| /** |
| * 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.Endpoint; |
| import org.apache.camel.Expression; |
| import org.apache.camel.Processor; |
| import org.apache.camel.bam.model.ActivityState; |
| import org.apache.camel.bam.model.ProcessInstance; |
| import org.apache.camel.bam.rules.ActivityRules; |
| |
| /** |
| * @version |
| */ |
| public class ActivityBuilder { |
| private final ProcessBuilder processBuilder; |
| private final Endpoint endpoint; |
| private final ActivityRules activityRules; |
| private Expression correlationExpression; |
| private volatile Processor processor; |
| |
| public ActivityBuilder(ProcessBuilder processBuilder, Endpoint endpoint) { |
| this.processBuilder = processBuilder; |
| this.endpoint = endpoint; |
| this.activityRules = new ActivityRules(processBuilder); |
| this.activityRules.setActivityName(endpoint.getEndpointUri()); |
| } |
| |
| public Endpoint getEndpoint() { |
| return endpoint; |
| } |
| |
| public Processor createProcessor() throws Exception { |
| return processBuilder.createActivityProcessor(this); |
| } |
| |
| /** |
| * Returns the processor of the route |
| */ |
| public synchronized Processor getProcessor() throws Exception { |
| if (processor == null) { |
| processor = createProcessor(); |
| } |
| if (processor == null) { |
| throw new IllegalArgumentException("No processor created for ActivityBuilder: " + this); |
| } |
| return processor; |
| } |
| |
| // Builder methods |
| //----------------------------------------------------------------------- |
| public ActivityBuilder correlate(Expression correlationExpression) { |
| this.correlationExpression = correlationExpression; |
| return this; |
| } |
| |
| public ActivityBuilder name(String name) { |
| activityRules.setActivityName(name); |
| return this; |
| } |
| |
| /** |
| * Create a temporal rule for when this step starts |
| */ |
| public TimeExpression starts() { |
| return new TimeExpression(this, ActivityLifecycle.Started) { |
| public Date evaluate(ProcessInstance instance, ActivityState state) { |
| return state.getTimeStarted(); |
| } |
| }; |
| } |
| |
| /** |
| * Create a temporal rule for when this step completes |
| */ |
| public TimeExpression completes() { |
| return new TimeExpression(this, ActivityLifecycle.Completed) { |
| public Date evaluate(ProcessInstance instance, ActivityState state) { |
| return state.getTimeCompleted(); |
| } |
| }; |
| } |
| |
| // Properties |
| //----------------------------------------------------------------------- |
| public Expression getCorrelationExpression() { |
| return correlationExpression; |
| } |
| |
| public ActivityRules getActivityRules() { |
| return activityRules; |
| } |
| |
| public ProcessBuilder getProcessBuilder() { |
| return processBuilder; |
| } |
| } |