com.facebook.presto.elasticsearch.ElasticsearchConnectorFactory.java Source code

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Here is the source code for com.facebook.presto.elasticsearch.ElasticsearchConnectorFactory.java

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/*
 * 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 com.facebook.presto.elasticsearch;

import com.facebook.presto.spi.ConnectorHandleResolver;
import com.facebook.presto.spi.NodeManager;
import com.facebook.presto.spi.classloader.ThreadContextClassLoader;
import com.facebook.presto.spi.connector.Connector;
import com.facebook.presto.spi.connector.ConnectorContext;
import com.facebook.presto.spi.connector.ConnectorFactory;
import com.facebook.presto.spi.type.TypeManager;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Injector;
import io.airlift.bootstrap.Bootstrap;
import io.airlift.json.JsonModule;

import java.util.Map;

import static java.util.Objects.requireNonNull;

public class ElasticsearchConnectorFactory implements ConnectorFactory {
    private final Map<String, String> optionalConfig;
    private final ClassLoader classLoader;

    public ElasticsearchConnectorFactory(Map<String, String> optionalConfig, ClassLoader classLoader) {
        this.optionalConfig = ImmutableMap.copyOf(requireNonNull(optionalConfig, "optionalConfig is null"));
        this.classLoader = requireNonNull(classLoader, "classLoader is null");
    }

    @Override
    public String getName() {
        return "elasticsearch";
    }

    @Override
    public ConnectorHandleResolver getHandleResolver() {
        return new ElasticsearchHandleResolver();
    }

    @Override
    public Connector create(final String connectorId, Map<String, String> requiredConfig,
            ConnectorContext context) {
        requireNonNull(requiredConfig, "requiredConfig is null");
        requireNonNull(optionalConfig, "optionalConfig is null");

        try (ThreadContextClassLoader ignored = new ThreadContextClassLoader(classLoader)) {
            Bootstrap app = new Bootstrap(new JsonModule(), new ElasticsearchModule(connectorId), binder -> {
                binder.bind(ElasticsearchConnectorId.class).toInstance(new ElasticsearchConnectorId(connectorId));
                binder.bind(TypeManager.class).toInstance(context.getTypeManager());
                binder.bind(NodeManager.class).toInstance(context.getNodeManager());
            });

            Injector injector = app.strictConfig().doNotInitializeLogging()
                    .setRequiredConfigurationProperties(requiredConfig)
                    .setOptionalConfigurationProperties(optionalConfig).initialize();

            return injector.getInstance(ElasticsearchConnector.class);
        } catch (Exception e) {
            throw Throwables.propagate(e);
        }
    }
}