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/**
 * Copyright (c) 2004-2021 QOS.ch
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
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package org.slf4j.spi;

import java.util.function.Supplier;

import org.slf4j.Marker;

import org.slf4j.helpers.CheckReturnValue;

/**
 * This is the main interface in slf4j's fluent API for creating
 * {@link org.slf4j.event.LoggingEvent logging events}.
 * 
 * @author Ceki Gülcü
 * @since 2.0.0
 */
public interface LoggingEventBuilder {

    /**
     * Set the cause for the logging event being built.
     * @param cause a throwable
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder setCause(Throwable cause);

    /**
     * A {@link Marker marker} to the event being built.
     *
     * @param marker a Marker instance to add.
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder addMarker(Marker marker);

    /**
     * Add an argument to the event being built.
     *
     * @param p an Object to add.
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder addArgument(Object p);

    /**
     * Add an argument supplier to the event being built.
     *
     * @param objectSupplier an Object supplier to add.
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder addArgument(Supplier objectSupplier);


    /**
     * Add a {@link org.slf4j.event.KeyValuePair key value pair} to the event being built.
     *
     * @param key the key of the key value pair.
     * @param value the value of the key value pair.
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder addKeyValue(String key, Object value);

    /**
     * Add a {@link org.slf4j.event.KeyValuePair key value pair} to the event being built.
     *
     * @param key the key of the key value pair.
     * @param valueSupplier a supplier of a value for the key value pair.
     * @return a LoggingEventBuilder, usually this.
     */
    @CheckReturnValue
    LoggingEventBuilder addKeyValue(String key, Supplier