/*
    * Copyright 2009-2014 the original author or authors.
    *
    * 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.springframework.batch.admin.web;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.TimeZone;
  
  import org.springframework.batch.admin.domain.JobExecutionInfo;
  import org.springframework.batch.core.JobExecution;
  import org.springframework.batch.core.JobInstance;
  
  public class JobInstanceInfo {
  
  	private final JobInstance jobInstance;
  
  	private final Long id;
  
  	private final Collection<JobExecutionInfo> jobExecutionInfos;
  
  	public JobInstanceInfo(JobInstance jobInstance, Collection<JobExecution> jobExecutions, TimeZone timeZone) {
  		this.jobInstance = jobInstance;
  		this.jobExecutionInfos = new ArrayList<JobExecutionInfo>();
  
  		if (jobExecutions != null) {
  			for (JobExecution jobExecution : jobExecutions) {
  				jobExecutionInfos.add(new JobExecutionInfo(jobExecution, timeZone));
  			}
  		}
  
  		this.id = jobInstance.getId();
  	}
  
  	public JobInstanceInfo(JobInstance jobInstance, Collection<JobExecution> jobExecutions) {
  		this(jobInstance, jobExecutions, TimeZone.getDefault());
  	}
  
  	public JobInstance getJobInstance() {
  		return jobInstance;
  	}
  
  	public Long getId() {
  		return id;
  	}
  
  	public int getJobExecutionCount() {
  		return jobExecutionInfos.size();
  	}
  
  	public Collection<JobExecution> getJobExecutions() {
  		Collection<JobExecution> jobExecutions = new ArrayList<JobExecution>();
  
  		for (JobExecutionInfo jobExecutionInfo : jobExecutionInfos) {
  			jobExecutions.add(jobExecutionInfo.getJobExecution());
  		}
  
  		return jobExecutions;
  	}
  
  	public JobExecution getLastJobExecution() {
  		return jobExecutionInfos.isEmpty() ? null : jobExecutionInfos.iterator().next().getJobExecution();
  	}
  
  	public JobExecutionInfo getLastJobExecutionInfo() {
  		return jobExecutionInfos.isEmpty() ? null : jobExecutionInfos.iterator().next();
  	}
  }