de.otto.mongodb.profiler.web.AbstractController.java Source code

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Here is the source code for de.otto.mongodb.profiler.web.AbstractController.java

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/*
 *  Copyright 2013 Robert Gacki <robert.gacki@cgi.com>
 *
 *  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 de.otto.mongodb.profiler.web;

import de.otto.mongodb.profiler.ProfiledConnection;
import de.otto.mongodb.profiler.ProfiledDatabase;
import de.otto.mongodb.profiler.ProfilerService;
import de.otto.mongodb.profiler.util.Logger;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Calendar;
import java.util.Locale;

import static com.google.common.base.Preconditions.checkNotNull;

@NoCache
public abstract class AbstractController {

    private static final Logger logger = Logger.getLogger(AbstractController.class);

    protected static final String JSON_TYPE_1 = "application/json";
    protected static final String JSON_TYPE_2 = "text/json";

    public static final class MainNavigation {
        public static final String DATABASES = "databases";
        public static final String CONNECTIONS = "connections";
    }

    private final ProfilerService profilerService;

    protected AbstractController(final ProfilerService profilerService) {
        this.profilerService = checkNotNull(profilerService);
    }

    @ExceptionHandler(ResourceNotFoundException.class)
    public void onResourceNotFound(HttpServletResponse response) throws IOException {

        response.sendError(HttpServletResponse.SC_NOT_FOUND, "Resource not found!");
    }

    @ExceptionHandler(RuntimeException.class)
    public void onRuntimeException(RuntimeException e, HttpServletResponse response) throws IOException {

        logger.error(e, "Unhandled exception caught.");

        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }

    protected ProfilerService getProfilerService() {
        return profilerService;
    }

    protected ProfiledConnection requireConnection(String id) throws ResourceNotFoundException {
        final ProfiledConnection connection = profilerService.getConnection(id);
        if (connection == null) {
            throw new ResourceNotFoundException(String.format("Connection [%s] not found!", id));
        }
        return connection;
    }

    protected ProfiledDatabase requireDatabase(String connection, String name) throws ResourceNotFoundException {
        return requireDatabase(requireConnection(connection), name);
    }

    protected ProfiledDatabase requireDatabase(ProfiledConnection connection, String name)
            throws ResourceNotFoundException {
        final ProfiledDatabase database = profilerService.getDatabase(connection, name);
        if (database == null) {
            throw new ResourceNotFoundException(
                    String.format("Database [%s] not found for connection [%s]!", name, connection));
        }
        return database;
    }

    protected static long lowerBoundary(int diffHours) {
        final Calendar cal = Calendar.getInstance(Locale.ENGLISH);
        cal.add(Calendar.HOUR, diffHours);
        return cal.getTimeInMillis();
    }
}