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Elasticsearch Hadoop Map/Reduce
/*
* 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;
import java.util.Properties;
/**
* Handler interface to be notified of and handle recoverable errors during connector execution.
*/
public interface ErrorHandler> {
/**
* Called at the handler creation time to initialize any internal state or resources.
* @param properties Properties for this handler with handler name prefix stripped away.
*/
void init(Properties properties);
/**
* Called when an exception or failure occurs in a part of the connector.
* @param entry information about the failure, normally includes operational data and error information
* @param collector handler for accepting user reactions to the failure, like retrying with modified parameters
* @return An enum that describes the handler's result, either that it handled the error or if the error should be
* passed on to the next handler.
* @throws Exception In the event that the current failure should not be handled, and should halt the connector
* processing.
*/
HandlerResult onError(I entry, C collector) throws Exception;
/**
* Called at the close of the connector to clean up any internal resources.
*/
void close();
}