io.druid.sql.avatica.DruidAvaticaHandler Maven / Gradle / Ivy
/*
* Licensed to Metamarkets Group Inc. (Metamarkets) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Metamarkets 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 io.druid.sql.avatica;
import com.google.inject.Inject;
import io.druid.guice.annotations.Self;
import io.druid.server.DruidNode;
import org.apache.calcite.avatica.remote.LocalService;
import org.apache.calcite.avatica.remote.Service;
import org.apache.calcite.avatica.server.AvaticaJsonHandler;
import org.eclipse.jetty.server.Request;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
public class DruidAvaticaHandler extends AvaticaJsonHandler
{
static final String AVATICA_PATH = "/druid/v2/sql/avatica/";
@Inject
public DruidAvaticaHandler(
final DruidMeta druidMeta,
@Self final DruidNode druidNode,
final AvaticaMonitor avaticaMonitor
) throws InstantiationException, IllegalAccessException, InvocationTargetException
{
super(new LocalService(druidMeta), avaticaMonitor);
setServerRpcMetadata(new Service.RpcMetadataResponse(druidNode.getHostAndPort()));
}
@Override
public void handle(
final String target,
final Request baseRequest,
final HttpServletRequest request,
final HttpServletResponse response
) throws IOException, ServletException
{
// This is not integrated with the experimental authorization framework.
// (Non-trivial since we don't know the dataSources up-front)
if (request.getRequestURI().equals(AVATICA_PATH)) {
super.handle(target, baseRequest, request, response);
}
}
}