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/**
 * Copyright 2012 International Business Machines Corp.
 *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. 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.apache.batchee.container.impl;

import org.apache.batchee.container.services.InternalJobExecution;
import org.apache.batchee.spi.PersistenceManagerService;
import org.apache.batchee.spi.PersistenceManagerService.TimestampType;

import javax.batch.runtime.BatchStatus;
import java.sql.Timestamp;
import java.util.Date;
import java.util.Properties;

public class JobExecutionImpl implements InternalJobExecution {
    private final PersistenceManagerService persistenceManagerService;

    private long executionID = 0L;
    private long instanceID = 0L;

    private Timestamp createTime;
    private Timestamp startTime;
    private Timestamp endTime;
    private Timestamp updateTime;
    private String batchStatus;
    private String exitStatus;
    private Properties jobProperties = null;
    private String jobName = null;
    private JobContextImpl jobContext = null;

    public void setJobName(String jobName) {
        this.jobName = jobName;
    }

    public void setJobContext(JobContextImpl jobContext) {
        this.jobContext = jobContext;
    }

    public JobExecutionImpl(final long executionId, final long instanceId, final PersistenceManagerService persistenceManagerService) {
        this.persistenceManagerService = persistenceManagerService;
        this.executionID = executionId;
        this.instanceID = instanceId;
    }

    @Override
    public BatchStatus getBatchStatus() {
        if (this.jobContext != null) {
            return this.jobContext.getBatchStatus();
        } else {
            // old job, retrieve from the backend
            final String name = persistenceManagerService.jobOperatorQueryJobExecutionBatchStatus(executionID);
            if (name != null) {
                return BatchStatus.valueOf(name);
            }
        }
        return BatchStatus.valueOf(batchStatus);
    }

    @Override
    public Date getCreateTime() {
        final Timestamp ts = persistenceManagerService.jobOperatorQueryJobExecutionTimestamp(executionID, TimestampType.CREATE);
        if (ts != null) {
            createTime = ts;
        }

        if (createTime != null) {
            return new Date(createTime.getTime());
        }
        return null;
    }

    @Override
    public Date getEndTime() {
        final Timestamp ts = persistenceManagerService.jobOperatorQueryJobExecutionTimestamp(executionID, TimestampType.END);
        if (ts != null) {
            endTime = ts;
        }

        if (endTime != null) {
            return new Date(endTime.getTime());
        }
        return null;
    }

    @Override
    public long getExecutionId() {
        return executionID;
    }

    @Override
    public String getExitStatus() {
        if (this.jobContext != null) {
            return this.jobContext.getExitStatus();
        }

        final String persistenceExitStatus = persistenceManagerService.jobOperatorQueryJobExecutionExitStatus(executionID);
        if (persistenceExitStatus != null) {
            exitStatus = persistenceExitStatus;
        }

        return this.exitStatus;
    }

    @Override
    public Date getLastUpdatedTime() {
        final Timestamp ts = persistenceManagerService.jobOperatorQueryJobExecutionTimestamp(executionID, TimestampType.LAST_UPDATED);
        if (ts != null) {
            this.updateTime = ts;
        }

        if (updateTime != null) {
            return new Date(this.updateTime.getTime());
        }
        return null;
    }

    @Override
    public Date getStartTime() {
        final Timestamp ts = persistenceManagerService.jobOperatorQueryJobExecutionTimestamp(executionID, TimestampType.STARTED);
        if (ts != null) {
            startTime = ts;
        }

        if (startTime != null) {
            return new Date(startTime.getTime());
        }
        return null;
    }

    @Override
    public Properties getJobParameters() {
        return jobProperties;
    }

    // IMPL specific setters

    public void setBatchStatus(String status) {
        batchStatus = status;
    }

    public void setCreateTime(Timestamp ts) {
        createTime = ts;
    }

    public void setEndTime(Timestamp ts) {
        endTime = ts;
    }

    public void setExecutionId(long id) {
        executionID = id;
    }

    public void setJobInstanceId(long jobInstanceID) {
        instanceID = jobInstanceID;
    }

    public void setExitStatus(String status) {
        exitStatus = status;
    }

    public void setInstanceId(long id) {
        instanceID = id;
    }

    public void setLastUpdateTime(Timestamp ts) {
        updateTime = ts;
    }

    public void setStartTime(Timestamp ts) {
        startTime = ts;
    }

    public void setJobParameters(Properties jProps) {
        jobProperties = jProps;
    }

    @Override
    public String getJobName() {
        return jobName;
    }

    @Override
    public long getInstanceId() {
        return instanceID;
    }

    @Override
    public String toString() {
        return ("createTime=" + createTime) + ",batchStatus=" + batchStatus + ",exitStatus="
            + exitStatus + ",jobName=" + jobName + ",instanceId=" + instanceID + ",executionId=" + executionID;
    }

}