/**
 [The "BSD licence"]

 ANTLR        - Copyright (c) 2005-2008 Terence Parr
 Maven Plugin - Copyright (c) 2009      Jim Idle

 All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 3. The name of the author may not be used to endorse or promote products
    derived from this software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.mojo.antlr3;

import org.antlr.tool.ANTLRErrorListener;
import org.antlr.tool.Message;
import org.antlr.tool.ToolMessage;
import org.apache.maven.plugin.logging.Log;

/**
 * The Maven plexus container gives us a Log logging provider
 * which we can use to install an error listener for the ANTLR
 * tool to report errors by.
 */
public class Antlr3ErrorLog implements ANTLRErrorListener {

    private Log log;

    /**
     * Instantiate an ANTLR ErrorListner that communicates any messages
     * it receives to the Maven error sink.
     *
     * @param log The Maven Error Log
     */
    public Antlr3ErrorLog(Log log) {
        this.log = log;
    }

    /**
     * Sends an informational message to the Maven log sink.
     * @param s The message to send to Maven
     */
    public void info(String message) {
        log.info(message);
    }

    /**
     * Sends an error message from ANTLR analysis to the Maven Log sink.
     *
     * @param message The message to send to Maven.
     */
    public void error(Message message) {
        log.error(message.toString());
    }

    /**
     * Sends a warning message to the Maven log sink.
     *
     * @param message
     */
    public void warning(Message message) {
        log.warn(message.toString());
    }

    /**
     * Sends an error message from the ANTLR tool to the Maven Log sink.
     * @param toolMessage
     */
    public void error(ToolMessage toolMessage) {
        log.error(toolMessage.toString());
    }
}