org.apache.drill.exec.store.couchbase.CouchbaseStoragePlugin.java Source code

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Here is the source code for org.apache.drill.exec.store.couchbase.CouchbaseStoragePlugin.java

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/**
 * 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.drill.exec.store.couchbase;

import java.io.IOException;

import net.hydromatic.optiq.SchemaPlus;

import org.apache.drill.common.JSONOptions;
import org.apache.drill.exec.rpc.user.UserSession;
import org.apache.drill.exec.server.DrillbitContext;
import org.apache.drill.exec.store.AbstractStoragePlugin;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

public class CouchbaseStoragePlugin extends AbstractStoragePlugin {
    static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CouchbaseStoragePlugin.class);

    private final DrillbitContext context;
    private final CouchbaseStoragePluginConfig engineConfig;
    private final CouchbaseSchemaFactory schemaFactory;

    @SuppressWarnings("unused")
    private final String name;

    public CouchbaseStoragePlugin(CouchbaseStoragePluginConfig configuration, DrillbitContext context, String name)
            throws IOException {
        this.context = context;
        this.schemaFactory = new CouchbaseSchemaFactory(this, name);
        this.engineConfig = configuration;
        this.name = name;
    }

    public DrillbitContext getContext() {
        return this.context;
    }

    @Override
    public boolean supportsRead() {
        return true;
    }

    @Override
    public CouchbaseGroupScan getPhysicalScan(JSONOptions selection) throws IOException {
        CouchbaseScanSpec scanSpec = selection.getListWith(new ObjectMapper(),
                new TypeReference<CouchbaseScanSpec>() {
                });
        return new CouchbaseGroupScan(this, scanSpec.bucket);
    }

    @Override
    public void registerSchemas(UserSession session, SchemaPlus parent) {
        schemaFactory.registerSchemas(session, parent);
    }

    @Override
    public CouchbaseStoragePluginConfig getConfig() {
        return engineConfig;
    }

}