/*
 * Copyright (C) 2009 the original author(s).
 *
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.sonatype.gshell.util;

import java.io.PrintStream;

/**
 * Internal logger.  For use by classes which can not use Slf4j due to bootstrap+logging configuration issues.
 *
 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
 * @since 2.0
 */
public final class Log
{
    ///CLOVER:OFF

    public static enum Level
    {
        TRACE,
        DEBUG,
        INFO,
        WARN,
        ERROR
    }

    @SuppressWarnings({"StringConcatenation"})
    public static final boolean DEBUG = Boolean.getBoolean(Log.class.getName() + ".debug");

    @SuppressWarnings({"StringConcatenation"})
    public static final boolean TRACE = Boolean.getBoolean(Log.class.getName() + ".trace");

    private static PrintStream output = System.err;

    public static PrintStream getOutput() {
        return output;
    }

    public static void setOutput(final PrintStream output) {
        assert output != null;
        Log.output = output;
    }

    private static void print(final Object message) {
        if (message instanceof Throwable) {
            ((Throwable) message).printStackTrace();
        }
        else if (message != null && message.getClass().isArray()) {
            Object[] array = (Object[]) message;

            for (int i = 0; i < array.length; i++) {
                output.print(array[i]);
                if (i + 1 < array.length) {
                    output.print(",");
                }
            }
        }
        else {
            output.print(message);
        }
    }

    private static void log(final Level level, final Object[] messages) {
        //noinspection SynchronizeOnNonFinalField
        synchronized (output) {
            output.format("[%s] ", level);

            for (Object message : messages) {
                print(message);
            }

            output.println();
            output.flush();
        }
    }

    public static void trace(final Object... messages) {
        if (TRACE) {
            log(Level.TRACE, messages);
        }
    }

    public static void debug(final Object... messages) {
        if (TRACE || DEBUG) {
            log(Level.DEBUG, messages);
        }
    }

    public static void warn(final Object... messages) {
        log(Level.WARN, messages);
    }

    public static void error(final Object... messages) {
        log(Level.ERROR, messages);
    }
}
@@ -1027,55 +1027,8 @@
  %7D%0A%0A
-    @SuppressWarnings(%7B%22StringConcatenation%22%7D)%0A
     
@@ -1120,55 +1120,8 @@
 );%0A%0A
-    @SuppressWarnings(%7B%22StringConcatenation%22%7D)%0A
     
@@ -2106,58 +2106,8 @@
 ) %7B%0A
-        //noinspection SynchronizeOnNonFinalField%0A
     

Drop supressions