org.biokoframework.system.services.cron.impl.CronFailureNotifier.java Source code

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Here is the source code for org.biokoframework.system.services.cron.impl.CronFailureNotifier.java

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/*
 * Copyright (c) 2014                                                 
 *   Mikol Faro         <mikol.faro@gmail.com>
 *   Simone Mangano      <simone.mangano@ieee.org>
 *   Mattia Tortorelli   <mattia.tortorelli@gmail.com>
 *
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */

package org.biokoframework.system.services.cron.impl;

import org.apache.commons.io.output.WriterOutputStream;
import org.apache.log4j.Logger;
import org.biokoframework.system.command.ICommand;
import org.biokoframework.system.services.cron.ICronListener;
import org.biokoframework.system.services.email.EmailException;
import org.biokoframework.system.services.email.IEmailService;
import org.joda.time.DateTime;

import java.io.PrintStream;
import java.io.StringWriter;

public class CronFailureNotifier implements ICronListener {

    private static final Logger LOGGER = Logger.getLogger(CronFailureNotifier.class);
    private static final String SCHEDULED_ERROR_SUBJECT = "Bioko cron service - failure report";

    private final IEmailService fMailService;

    private final String fSourceEmailAddress;
    private final String fDestinationEmailAddress;

    public CronFailureNotifier(IEmailService mailService, String sourceMailAddress, String destinationMailAddress) {
        fMailService = mailService;

        fSourceEmailAddress = sourceMailAddress;
        fDestinationEmailAddress = destinationMailAddress;
    }

    @Override
    public <C extends ICommand> void commandFinished(Class<C> command) {
    }

    @Override
    public <C extends ICommand> void commandFailed(Class<C> command, Throwable cause) {
        try {
            StringWriter writer = new StringWriter();
            writer.write("Command " + command.getName() + " failed");
            if (cause.getMessage() != null) {
                writer.write(" with message " + cause.getMessage() + "\n");
            } else {
                writer.write("\n");
            }

            writer.write("Time stamp: " + DateTime.now() + "\n");

            writer.write("Stacktrace: ");
            cause.printStackTrace(new PrintStream(new WriterOutputStream(writer)));

            fMailService.sendASAP(fDestinationEmailAddress, fSourceEmailAddress, writer.toString(),
                    SCHEDULED_ERROR_SUBJECT);

        } catch (EmailException exception) {
            // The system failed at failing (looks like Windows) 

            LOGGER.error("Error while reporting error for cron", exception);
        }

    }

}