psiprobe.controllers.sql.QueryHistoryItemController.java Source code

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Here is the source code for psiprobe.controllers.sql.QueryHistoryItemController.java

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/**
 * Licensed under the GPL License. You may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */
package psiprobe.controllers.sql;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import psiprobe.model.sql.DataSourceTestInfo;

import java.nio.charset.StandardCharsets;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Retrieves a single query from a history list.
 * 
 * @author Andy Shapoval
 */
public class QueryHistoryItemController extends AbstractController {

    /** The Constant logger. */
    private static final Logger logger = LoggerFactory.getLogger(QueryHistoryItemController.class);

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
            throws Exception {

        int sqlId = ServletRequestUtils.getIntParameter(request, "sqlId", -1);

        HttpSession sess = request.getSession(false);

        if (sess != null) {
            DataSourceTestInfo sessData = (DataSourceTestInfo) sess
                    .getAttribute(DataSourceTestInfo.DS_TEST_SESS_ATTR);

            if (sessData != null) {
                List<String> queryHistory = sessData.getQueryHistory();

                if (queryHistory != null) {
                    try {
                        String sql = queryHistory.get(sqlId);
                        response.setCharacterEncoding(StandardCharsets.UTF_8.name());
                        response.getWriter().print(sql);
                    } catch (IndexOutOfBoundsException e) {
                        logger.error("Cannot find a query history entry for history item id = {}", sqlId);
                        logger.trace("", e);
                    }
                }
            }
        }

        return null;
    }

}