io.hops.metadata.adaptor.CacheDirectiveDALAdaptor.java Source code

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Here is the source code for io.hops.metadata.adaptor.CacheDirectiveDALAdaptor.java

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/*
 * Copyright (C) 2015 hops.io.
 *
 * 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 io.hops.metadata.adaptor;

import io.hops.exception.StorageException;
import io.hops.metadata.DalAdaptor;
import io.hops.metadata.hdfs.dal.CacheDirectiveDataAccess;
import java.util.Collection;
import org.apache.hadoop.hdfs.protocol.CacheDirective;

public class CacheDirectiveDALAdaptor
        extends DalAdaptor<CacheDirective, io.hops.metadata.hdfs.entity.CacheDirective>
        implements CacheDirectiveDataAccess<CacheDirective> {

    private CacheDirectiveDataAccess<io.hops.metadata.hdfs.entity.CacheDirective> dataAccess;

    public CacheDirectiveDALAdaptor(
            CacheDirectiveDataAccess<io.hops.metadata.hdfs.entity.CacheDirective> dataAccess) {
        this.dataAccess = dataAccess;
    }

    @Override
    public io.hops.metadata.hdfs.entity.CacheDirective convertHDFStoDAL(CacheDirective cacheDirective)
            throws StorageException {
        return new io.hops.metadata.hdfs.entity.CacheDirective(cacheDirective.getId(), cacheDirective.getPath(),
                cacheDirective.getReplication(), cacheDirective.getExpiryTime(), cacheDirective.getBytesNeeded(),
                cacheDirective.getBytesCached(), cacheDirective.getFilesNeeded(), cacheDirective.getFilesCached(),
                cacheDirective.getPoolName());
    }

    @Override
    public CacheDirective convertDALtoHDFS(io.hops.metadata.hdfs.entity.CacheDirective cacheDirective) {
        if (cacheDirective == null) {
            return null;
        }
        return new CacheDirective(cacheDirective.getId(), cacheDirective.getPath(), cacheDirective.getReplication(),
                cacheDirective.getExpiryTime(), cacheDirective.getBytesNeeded(), cacheDirective.getBytesCached(),
                cacheDirective.getFilesNeeded(), cacheDirective.getFilesCached(), cacheDirective.getPool());
    }

    @Override
    public void prepare(Collection<CacheDirective> removed, Collection<CacheDirective> newed)
            throws StorageException {
        dataAccess.prepare(convertHDFStoDAL(removed), convertHDFStoDAL(newed));
    }

    @Override
    public CacheDirective find(long key) throws StorageException {
        return convertDALtoHDFS(dataAccess.find(key));
    }

    @Override
    public Collection<CacheDirective> findByPool(String pool) throws StorageException {
        return convertDALtoHDFS(dataAccess.findByPool(pool));
    }

    @Override
    public Collection<CacheDirective> findByIdAndPool(long id, String pool) throws StorageException {
        return convertDALtoHDFS(dataAccess.findByIdAndPool(id, pool));
    }

    @Override
    public Collection<CacheDirective> findAll() throws StorageException {
        return convertDALtoHDFS(dataAccess.findAll());
    }
}