/*
* 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.cli;
import com.facebook.presto.client.ClientSession;
import com.facebook.presto.client.QueryResults;
import com.facebook.presto.client.StatementClient;
import io.airlift.http.client.AsyncHttpClient;
import io.airlift.http.client.HttpClientConfig;
import io.airlift.http.client.netty.StandaloneNettyAsyncHttpClient;
import io.airlift.json.JsonCodec;
import io.airlift.units.Duration;
import java.io.Closeable;
import java.util.concurrent.TimeUnit;
import static com.google.common.base.Preconditions.checkNotNull;
import static io.airlift.json.JsonCodec.jsonCodec;
public class QueryRunner
implements Closeable
{
private final JsonCodec<QueryResults> queryResultsCodec;
private final ClientSession session;
private final AsyncHttpClient httpClient;
public QueryRunner(ClientSession session, JsonCodec<QueryResults> queryResultsCodec)
{
this.session = checkNotNull(session, "session is null");
this.queryResultsCodec = checkNotNull(queryResultsCodec, "queryResultsCodec is null");
this.httpClient = new StandaloneNettyAsyncHttpClient("cli",
new HttpClientConfig().setConnectTimeout(new Duration(10, TimeUnit.SECONDS)));
}
public ClientSession getSession()
{
return session;
}
public Query startQuery(String query)
{
return new Query(startInternalQuery(query));
}
public StatementClient startInternalQuery(String query)
{
return new StatementClient(httpClient, queryResultsCodec, session, query);
}
@Override
public void close()
{
httpClient.close();
}
public static QueryRunner create(ClientSession session)
{
return new QueryRunner(session, jsonCodec(QueryResults.class));
}
}