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/*
 * Copyright 2013 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.api.runtime.manager.audit;

import java.util.Date;

/**
 * Audit view of process instance
 *
 */
public interface ProcessInstanceLog {

    /**
     * Process instance identifier
     * @return the {@link Long} value
     */
    Long getProcessInstanceId();

    /**
     * Process id of the definition
     * @return the {@link String} value
     */
    String getProcessId();

    /**
     * Start date of this process instance
     * @return the {@link Date} value
     */
    Date getStart();

    /**
     * End date of this process instance, null if process instance is still active
     * @return the {@link Date} value
     */
    Date getEnd();

    /**
     * Status of the process instance and might be one of:
     * 
     *  ProcessInstance.STATE_ACTIVE
     *  ProcessInstance.STATE_COMPLETED
     *  ProcessInstance.STATE_ABORTED
     *  ProcessInstance.STATE_SUSPENDED
     * 
     * @return the {@link Integer} value
     */
    Integer getStatus();

    /**
     * Parent process instance id, will be null for top level process instance
     * @return the {@link Long} value
     */
    Long getParentProcessInstanceId();

    /**
     * Outcome of the process instance that is providing error information in case process
     * instance completed with an error
     * @return the {@link String} value
     */
    String getOutcome();

    /**
     * Amount of time (in milliseconds) that process instance took to complete.
     * Available only when process instance is completed.
     * @return the {@link String} value
     */
    Long getDuration();

    /**
     * Identifier of a entity (user) who initiated this process instance.
     * @return the {@link String} value
     */
    String getIdentity();

    /**
     * External (optional) identifier associated with this process instance
     * @return the {@link String} value
     */
    String getExternalId();

    /**
     * Version of the process definition
     * @return the {@link String} value
     */
    String getProcessVersion();

    /**
     * Name of the process definition
     * @return the {@link String} value
     */
    String getProcessName();

    /**
     * Description of the process instance
     * @return the {@link String} value
     */
    String getProcessInstanceDescription();

}