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The API for plugins - Mojos - development.
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.maven.plugin.logging;

/**
 * This interface supplies the API for providing feedback to the user from the Mojo, using standard
 * Maven channels.

 * There should be no big surprises here, although you may notice that the methods accept
 * java.lang.CharSequence rather than java.lang.String. This is provided mainly as a
 * convenience, to enable developers to pass things like java.lang.StringBuffer directly into the logger,
 * rather than formatting first by calling toString().
 *
 *
 * @deprecated Use SLF4J directly
 */
@Deprecated
public interface Log {
    /**
     * @return true if the debug error level is enabled
     */
    boolean isDebugEnabled();

    /**
     * Send a message to the user in the debug error level.
     *
     * @param content
     */
    void debug(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the debug error level.

     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content
     * @param error
     */
    void debug(CharSequence content, Throwable error);

    /**
     * Send an exception to the user in the debug error level.

     * The stack trace for this exception will be output when this error level is enabled.
     *
     * @param error
     */
    void debug(Throwable error);

    /**
     * @return true if the info error level is enabled
     */
    boolean isInfoEnabled();

    /**
     * Send a message to the user in the info error level.
     *
     * @param content
     */
    void info(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the info error level.

     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content
     * @param error
     */
    void info(CharSequence content, Throwable error);

    /**
     * Send an exception to the user in the info error level.

     * The stack trace for this exception will be output when this error level is enabled.
     *
     * @param error
     */
    void info(Throwable error);

    /**
     * @return true if the warn error level is enabled
     */
    boolean isWarnEnabled();

    /**
     * Send a message to the user in the warn error level.
     *
     * @param content
     */
    void warn(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the warn error level.

     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content
     * @param error
     */
    void warn(CharSequence content, Throwable error);

    /**
     * Send an exception to the user in the warn error level.

     * The stack trace for this exception will be output when this error level is enabled.
     *
     * @param error
     */
    void warn(Throwable error);

    /**
     * @return true if the error error level is enabled
     */
    boolean isErrorEnabled();

    /**
     * Send a message to the user in the error error level.
     *
     * @param content
     */
    void error(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the error error level.

     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content
     * @param error
     */
    void error(CharSequence content, Throwable error);

    /**
     * Send an exception to the user in the error error level.

     * The stack trace for this exception will be output when this error level is enabled.
     *
     * @param error
     */
    void error(Throwable error);
}