/*

 * Copyright 2004-2005 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package com.sun.tools.apt.mirror.apt;

import javax.tools.JavaFileObject;

import com.sun.mirror.apt.Messager;

import com.sun.tools.apt.mirror.util.SourcePositionImpl;

import com.sun.mirror.util.SourcePosition;

import com.sun.tools.javac.util.Context;

import com.sun.tools.javac.util.Name;

import com.sun.tools.javac.util.Position;

import com.sun.tools.apt.util.Bark;

/**

 * Implementation of Messager.

 */

public class MessagerImpl implements Messager {

    private final Bark bark;

    private static final Context.Key<MessagerImpl> messagerKey =

            new Context.Key<MessagerImpl>();

    public static MessagerImpl instance(Context context) {

        MessagerImpl instance = context.get(messagerKey);

        if (instance == null) {

            instance = new MessagerImpl(context);

        }

        return instance;

    }

    private MessagerImpl(Context context) {

        context.put(messagerKey, this);

        bark = Bark.instance(context);

    }

    /**

     * {@inheritDoc}

     */

    public void printError(String msg) {

        bark.aptError("Messager", msg);

    }

    /**

     * {@inheritDoc}

     */

    public void printError(SourcePosition pos, String msg) {

        if (pos instanceof SourcePositionImpl) {

            SourcePositionImpl posImpl = (SourcePositionImpl) pos;

            JavaFileObject prev = bark.useSource(posImpl.getSource());

            bark.aptError(posImpl.getJavacPosition(), "Messager", msg);

            bark.useSource(prev);

        } else

            printError(msg);

    }

    /**

     * {@inheritDoc}

     */

    public void printWarning(String msg) {

        bark.aptWarning("Messager", msg);

    }

    /**

     * {@inheritDoc}

     */

    public void printWarning(SourcePosition pos, String msg) {

        if (pos instanceof SourcePositionImpl) {

            SourcePositionImpl posImpl = (SourcePositionImpl) pos;

            JavaFileObject prev = bark.useSource(posImpl.getSource());

            bark.aptWarning(posImpl.getJavacPosition(), "Messager", msg);

            bark.useSource(prev);

        } else

            printWarning(msg);

    }

    /**

     * {@inheritDoc}

     */

    public void printNotice(String msg) {

        bark.aptNote("Messager", msg);

    }

    /**

     * {@inheritDoc}

     */

    public void printNotice(SourcePosition pos, String msg) {

        if (pos instanceof SourcePositionImpl) {

            SourcePositionImpl posImpl = (SourcePositionImpl) pos;

            JavaFileObject prev = bark.useSource(posImpl.getSource());

            bark.aptNote(posImpl.getJavacPosition(), "Messager", msg);

            bark.useSource(prev);

        } else

            printNotice(msg);

    }

}