// Copyright 2006 Google Inc.  All Rights Reserved.
//
// 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.google.enterprise.connector.servlet;

import com.google.enterprise.connector.instantiator.InstantiatorException;
import com.google.enterprise.connector.manager.Manager;
import com.google.enterprise.connector.persist.ConnectorNotFoundException;
import com.google.enterprise.connector.spi.ConfigureResponse;

import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Admin servlet to get the config form to edit with pre-filled data
 * for a given existing connector name and language.
 *
 */
public class GetConnectorConfigToEdit extends ConnectorManagerGetServlet {
  private static final Logger LOGGER = Logger.getLogger(
    GetConnectorConfigToEdit.class.getName());

  @Override
  protected void processDoGet(String connectorName, String lang, Manager manager, PrintWriter out) {
    handleDoGet(connectorName, lang, manager, out);
  }

  /**
   * Handler for doGet in order to do unit tests.
   * Returns the connector config form with pre-filled data.
   *
   */
  public static void handleDoGet(String connectorName, String language,
      Manager manager, PrintWriter out) {
    ConnectorMessageCode status = new ConnectorMessageCode();
    ConfigureResponse configResponse = null;
    try {
      configResponse =
          manager.getConfigFormForConnector(connectorName, language);
    } catch (ConnectorNotFoundException e) {
      status = new ConnectorMessageCode(
          ConnectorMessageCode.EXCEPTION_CONNECTOR_NOT_FOUND, connectorName);
      LOGGER.log(
          Level.WARNING, ServletUtil.LOG_EXCEPTION_CONNECTOR_NOT_FOUND, e);
    } catch (InstantiatorException e) {
      status.setMessageId(ConnectorMessageCode.EXCEPTION_INSTANTIATOR);
      LOGGER.log(Level.WARNING, ServletUtil.LOG_EXCEPTION_INSTANTIATOR, e);
    }

    writeConfigureResponse(out, status, configResponse);
  }

}