BEGIN LICENSE BLOCK *****
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The contents of this file are subject to the Eclipse Public
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except in compliance with the License. You may obtain a copy of
the License at http://www.eclipse.org/legal/epl-v20.html
Software distributed under the License is distributed on an "AS
IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
implied. See the License for the specific language governing
rights and limitations under the License.
Copyright (C) 2001-2015 The JRuby Community (and contribs)
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in which case the provisions of the GPL or the LGPL are applicable instead
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 * Version: EPL 2.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse Public
 * 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.eclipse.org/legal/epl-v20.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Copyright (C) 2001-2015 The JRuby Community (and contribs)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the EPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
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package org.jruby.util.log;

import java.io.PrintStream;

Default JRuby logger implementation, using err. /**
 * Default JRuby logger implementation, using {@link System.err}.
 */
public class StandardErrorLogger extends OutputStreamLogger {

    public StandardErrorLogger(String loggerName) {
        super(loggerName);
    }

    public StandardErrorLogger(Class<?> loggerClass) {
        super(loggerClass.getSimpleName());
    }

    public StandardErrorLogger(String loggerName, PrintStream stream) {
        super(loggerName, stream);
    }

    @Override
    protected void write(String message, String level, Object[] args) {
        // NOTE: stream is intentionally not set to System.err
        // thus when its programatically redirected it works !
        PrintStream stream = this.stream;
        if ( stream == null ) stream = System.err;

        CharSequence suble = substitute(message, args);
        stream.println(formatMessage(suble, level));
    }

    @Override
    protected void write(String message, String level, Throwable throwable) {
        // NOTE: stream is intentionally not set to System.err
        // thus when its programatically redirected it works !
        PrintStream stream = this.stream;
        if ( stream == null ) stream = System.err;

        synchronized (stream) {
            stream.println(formatMessage(message, level));
            writeStackTrace(stream, throwable);
        }
    }

}