com.seleritycorp.common.base.logging.PrefixedLogger.java Source code

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Here is the source code for com.seleritycorp.common.base.logging.PrefixedLogger.java

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/*
 * Copyright (C) 2016 Selerity, Inc. (support@seleritycorp.com)
 *
 * 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 com.seleritycorp.common.base.logging;

import com.google.inject.assistedinject.Assisted;

import org.apache.commons.logging.Log;

import javax.inject.Inject;

/**
 * Wraps a logger, adding a prefix to each logged message.
 */
public class PrefixedLogger implements Log {
    public interface Factory {
        PrefixedLogger create(String prefix, Log parentLog);
    }

    /**
     * The fully formatted prefix to add to each logged message.
     */
    private final String prefix;

    /**
     * The wrapped Log instance.
     */
    private final Log parentLog;

    /**
     * Constucts a new Logger that prefixes each logged message.
     * 
     * @param prefix The prefix to prefix to each log message. The prefix will
     *        additionally be put in parentheses.
     * @param parentLog The Log instance to log the prefixed log messages with.
     */
    @Inject
    PrefixedLogger(@Assisted String prefix, @Assisted Log parentLog) {
        this.prefix = "(" + prefix + ") ";
        this.parentLog = parentLog;
    }

    @Override
    public boolean isDebugEnabled() {
        return parentLog.isDebugEnabled();
    }

    @Override
    public boolean isErrorEnabled() {
        return parentLog.isErrorEnabled();
    }

    @Override
    public boolean isFatalEnabled() {
        return parentLog.isFatalEnabled();
    }

    @Override
    public boolean isInfoEnabled() {
        return parentLog.isInfoEnabled();
    }

    @Override
    public boolean isTraceEnabled() {
        return parentLog.isTraceEnabled();
    }

    @Override
    public boolean isWarnEnabled() {
        return parentLog.isWarnEnabled();
    }

    @Override
    public void trace(Object message) {
        parentLog.trace(prefix + message);
    }

    @Override
    public void trace(Object message, Throwable throwable) {
        parentLog.trace(prefix + message, throwable);
    }

    @Override
    public void debug(Object message) {
        parentLog.debug(prefix + message);
    }

    @Override
    public void debug(Object message, Throwable throwable) {
        parentLog.debug(prefix + message, throwable);
    }

    @Override
    public void info(Object message) {
        parentLog.info(prefix + message);
    }

    @Override
    public void info(Object message, Throwable throwable) {
        parentLog.info(prefix + message, throwable);
    }

    @Override
    public void warn(Object message) {
        parentLog.warn(prefix + message);
    }

    @Override
    public void warn(Object message, Throwable throwable) {
        parentLog.warn(prefix + message, throwable);
    }

    @Override
    public void error(Object message) {
        parentLog.error(prefix + message);
    }

    @Override
    public void error(Object message, Throwable throwable) {
        parentLog.error(prefix + message, throwable);
    }

    @Override
    public void fatal(Object message) {
        parentLog.fatal(prefix + message);
    }

    @Override
    public void fatal(Object message, Throwable throwable) {
        parentLog.fatal(prefix + message, throwable);
    }
}