DriverRequestHandler.java

/**
 * 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.sqoop.handler;

import org.apache.log4j.Logger;
import org.apache.sqoop.audit.AuditLoggerManager;
import org.apache.sqoop.common.SqoopException;
import org.apache.sqoop.driver.Driver;
import org.apache.sqoop.json.DriverBean;
import org.apache.sqoop.json.JsonBean;
import org.apache.sqoop.server.RequestContext;
import org.apache.sqoop.server.RequestHandler;
import org.apache.sqoop.server.RequestContext.Method;
import org.apache.sqoop.server.common.ServerError;

public class DriverRequestHandler implements RequestHandler {

  private static final Logger LOG =
      Logger.getLogger(DriverRequestHandler.class);

  public DriverRequestHandler() {
    LOG.info("DriverRequestHandler initialized");
  }

  @Override
  public JsonBean handleEvent(RequestContext ctx) {
    // driver only support GET requests
    if (ctx.getMethod() != Method.GET) {
      throw new SqoopException(ServerError.SERVER_0002, "Unsupported HTTP method for driver:"
          + ctx.getMethod());
    }
    AuditLoggerManager.getInstance().logAuditEvent(ctx.getUserName(),
        ctx.getRequest().getRemoteAddr(), "get", "driver", "");

    return new DriverBean(Driver.getInstance().getDriver(), Driver.getInstance().getBundle(
        ctx.getAcceptLanguageHeader()));
  }
}