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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.hadoop.handler.impl;

import java.util.Collections;
import java.util.List;

import org.elasticsearch.hadoop.handler.Exceptional;

/**
 * Provides a basic implementation of an exceptional event to be passed between error handlers.
 */
public abstract class BaseExceptional implements Exceptional {

    private final Exception reason;
    private final List passReasons;

    public BaseExceptional(Exception reason, List passReasons) {
        this.reason = reason;
        this.passReasons = Collections.unmodifiableList(passReasons);
    }

    @Override
    public Exception getException() {
        return reason;
    }

    @Override
    public List previousHandlerMessages() {
        return passReasons;
    }
}