info.archinnov.achilles.internal.consistency.ConsistencyConverter Maven / Gradle / Ivy

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CQL implementation for Achilles using Datastax Java driver

There is a newer version: 6.1.0

/*
 * Copyright (C) 2012-2014 DuyHai DOAN
 *
 *  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 info.archinnov.achilles.internal.consistency;

import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import info.archinnov.achilles.type.ConsistencyLevel;

public class ConsistencyConverter {

    private static final Logger log = LoggerFactory.getLogger(ConsistencyConverter.class);

    private final static Map fromAchillesToCQL = new HashMap();

    static {
        fromAchillesToCQL.put(ConsistencyLevel.ANY, com.datastax.driver.core.ConsistencyLevel.ANY);
        fromAchillesToCQL.put(ConsistencyLevel.ONE, com.datastax.driver.core.ConsistencyLevel.ONE);
        fromAchillesToCQL.put(ConsistencyLevel.TWO, com.datastax.driver.core.ConsistencyLevel.TWO);
        fromAchillesToCQL.put(ConsistencyLevel.THREE, com.datastax.driver.core.ConsistencyLevel.THREE);
        fromAchillesToCQL.put(ConsistencyLevel.QUORUM, com.datastax.driver.core.ConsistencyLevel.QUORUM);
        fromAchillesToCQL.put(ConsistencyLevel.LOCAL_QUORUM, com.datastax.driver.core.ConsistencyLevel.LOCAL_QUORUM);
        fromAchillesToCQL.put(ConsistencyLevel.EACH_QUORUM, com.datastax.driver.core.ConsistencyLevel.EACH_QUORUM);
        fromAchillesToCQL.put(ConsistencyLevel.ALL, com.datastax.driver.core.ConsistencyLevel.ALL);
        fromAchillesToCQL.put(ConsistencyLevel.SERIAL, com.datastax.driver.core.ConsistencyLevel.SERIAL);
        fromAchillesToCQL.put(ConsistencyLevel.LOCAL_SERIAL, com.datastax.driver.core.ConsistencyLevel.LOCAL_SERIAL);
        fromAchillesToCQL.put(ConsistencyLevel.LOCAL_ONE, com.datastax.driver.core.ConsistencyLevel.LOCAL_ONE);
    }

    public static com.datastax.driver.core.ConsistencyLevel getCQLLevel(ConsistencyLevel achillesLevel) {
        log.trace("Convert Achilles Consistency Level to CQL Consistency Level");
        com.datastax.driver.core.ConsistencyLevel cqlLevel = fromAchillesToCQL.get(achillesLevel);
        if (cqlLevel == null) {
            throw new IllegalArgumentException("No matching Consistency Level for Achilles level '"
                    + (achillesLevel != null ? achillesLevel.name() : "null") + "'");
        }

        return cqlLevel;
    }
}