external/storm-cassandra/src/main/java/org/apache/storm/cassandra/AbstractExecutionResultHandler.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The ASF 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.apache.storm.cassandra;

import com.datastax.driver.core.exceptions.QueryValidationException;
import com.datastax.driver.core.exceptions.ReadTimeoutException;
import com.datastax.driver.core.exceptions.UnavailableException;
import com.datastax.driver.core.exceptions.WriteTimeoutException;
import java.util.List;
import org.apache.storm.task.OutputCollector;
import org.apache.storm.tuple.Tuple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Default interface to define strategies to apply when a query is either succeed or failed.
 *
 */
public abstract class AbstractExecutionResultHandler implements ExecutionResultHandler {

    public static final Logger LOG = LoggerFactory.getLogger(AbstractExecutionResultHandler.class);

    @Override
    public void onThrowable(Throwable t, OutputCollector collector, Tuple i) {
        if (t instanceof QueryValidationException) {
            this.onQueryValidationException((QueryValidationException) t, collector, i);
        } else if (t instanceof ReadTimeoutException) {
            this.onReadTimeoutException((ReadTimeoutException) t, collector, i);
        } else if (t instanceof WriteTimeoutException) {
            this.onWriteTimeoutException((WriteTimeoutException) t, collector, i);
        } else if (t instanceof UnavailableException) {
            this.onUnavailableException((UnavailableException) t, collector, i);
        } else {
            collector.reportError(t);
            collector.fail(i);
        }
    }

    @Override
    public void onThrowable(Throwable t, OutputCollector collector, List<Tuple> tl) {
        for (Tuple i : tl) {
            onThrowable(t, collector, i);
        }
    }
}