org.obm.imap.archive.logging.LoggerAppenders.java Source code

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Here is the source code for org.obm.imap.archive.logging.LoggerAppenders.java

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/* ***** BEGIN LICENSE BLOCK *****
 * Copyright (C) 2014  Linagora
 * 
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version, provided you comply with the Additional Terms applicable for OBM
 * software by Linagora pursuant to Section 7 of the GNU Affero General Public
 * License, subsections (b), (c), and (e), pursuant to which you must notably (i)
 * retain the displaying by the interactive user interfaces of the OBM, Free
 * Communication by Linagora? Logo with the You are using the Open Source and
 * free version of OBM developed and supported by Linagora. Contribute to OBM R&D
 * by subscribing to an Enterprise offer !? infobox, (ii) retain all hypertext
 * links between OBM and obm.org, between Linagora and linagora.com, as well as
 * between the expression Enterprise offer? and pro.obm.org, and (iii) refrain
 * from infringing Linagora intellectual property rights over its trademarks and
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 * <http://www.linagora.com/licenses/> for more details.
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
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 * PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License and
 * its applicable Additional Terms for OBM along with this program. If not, see
 * <http://www.gnu.org/licenses/> for the GNU Affero General   Public License
 * version 3 and <http://www.linagora.com/licenses/> for the Additional Terms
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package org.obm.imap.archive.logging;

import org.obm.imap.archive.beans.ArchiveTreatmentRunId;

import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;

import com.google.common.base.Preconditions;

public class LoggerAppenders {

    public static LoggerAppenders from(ArchiveTreatmentRunId runId, Logger logger) {
        String baseAppenderName = runId.serialize();

        Appender<ILoggingEvent> fileAppender = logger.getAppender(baseAppenderName);
        Preconditions.checkState(fileAppender != null);
        ChunkedOutputAppender chunkedOutputAppender = (ChunkedOutputAppender) logger
                .getAppender(LoggerFactory.CHUNK_APPENDER_PREFIX + baseAppenderName);
        Preconditions.checkState(chunkedOutputAppender != null);

        return new LoggerAppenders(logger, fileAppender, chunkedOutputAppender);
    }

    private final Logger logger;
    private final Appender<ILoggingEvent> fileAppender;
    private final ChunkedOutputAppender chunkedOutputAppender;

    private LoggerAppenders(Logger logger, Appender<ILoggingEvent> fileAppender,
            ChunkedOutputAppender chunkedOutputAppender) {
        this.logger = logger;
        this.fileAppender = fileAppender;
        this.chunkedOutputAppender = chunkedOutputAppender;
    }

    public void startAppenders() {
        fileAppender.start();
        chunkedOutputAppender.start();
    }

    public void stopAppenders() {
        logger.detachAndStopAllAppenders();
    }

    public ChunkedOutputAppender getChunkAppender() {
        return chunkedOutputAppender;
    }
}