org.springframework.messaging.simp.SimpLogging.java Source code

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Here is the source code for org.springframework.messaging.simp.SimpLogging.java

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/*
 * Copyright 2002-2018 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.messaging.simp;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.core.log.LogDelegateFactory;

/**
 * Holds the shared logger named "org.springframework.web.SimpLogging" to use
 * for STOMP over WebSocket messaging when logging for
 * "org.springframework.messaging.simp" is off but logging for
 * "org.springframework.web" is on.
 *
 * <p>This makes it possible to enable all web related logging via
 * "org.springframework.web" including logging from lower-level packages such as
 * "org.springframework.messaging.simp".
 *
 * <p>To see logging from the primary classes where log messages originate from,
 * simply enable logging for "org.springframework.messaging".
 *
 * @author Rossen Stoyanchev
 * @since 5.1
 * @see LogDelegateFactory
 */
public abstract class SimpLogging {

    private static final Log fallbackLogger = LogFactory
            .getLog("org.springframework.web." + SimpLogging.class.getSimpleName());

    /**
     * Create a primary logger for the given class and wrap it with a composite
     * that delegates to it or to the fallback logger named
     * "org.springframework.web.SimpLogging", if the primary is not enabled.
     * @param primaryLoggerClass the class for the name of the primary logger
     * @return the resulting composite logger
     */
    public static Log forLogName(Class<?> primaryLoggerClass) {
        Log primaryLogger = LogFactory.getLog(primaryLoggerClass);
        return forLog(primaryLogger);
    }

    /**
     * Wrap the given primary logger with a composite logger that delegates to
     * either the primary or to the shared fallback logger
     * "org.springframework.web.HttpLogging", if the primary is not enabled.
     * @param primaryLogger the primary logger to use
     * @return the resulting composite logger
     */
    public static Log forLog(Log primaryLogger) {
        return LogDelegateFactory.getCompositeLog(primaryLogger, fallbackLogger);
    }

}