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Swirlds is a software platform designed to build fully-distributed applications that harness the power of the cloud without servers. Now you can develop applications with fairness in decision making, speed, trust and reliability, at a fraction of the cost of traditional server-based platforms.

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/*
 * Copyright (C) 2023-2024 Hedera Hashgraph, LLC
 *
 * 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.swirlds.logging.api.internal.event;

import com.swirlds.base.context.internal.GlobalContext;
import com.swirlds.base.context.internal.ThreadLocalContext;
import com.swirlds.logging.api.Level;
import com.swirlds.logging.api.Marker;
import com.swirlds.logging.api.extensions.event.LogEvent;
import com.swirlds.logging.api.extensions.event.LogEventFactory;
import com.swirlds.logging.api.extensions.event.LogMessage;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.util.HashMap;
import java.util.Map;

/**
 * A log event factory that simply creates a new log event instance for every log statement.
 */
public class SimpleLogEventFactory implements LogEventFactory {

    @NonNull
    @Override
    public LogEvent createLogEvent(
            @NonNull Level level,
            @NonNull String loggerName,
            @NonNull String threadName,
            long timestamp,
            @NonNull LogMessage message,
            @Nullable Throwable throwable,
            @Nullable Marker marker,
            @Nullable Map context) {
        final Map mergedContext = new HashMap<>();
        if (context != null) {
            mergedContext.putAll(context);
        }
        mergedContext.putAll(GlobalContext.getContextMap());
        mergedContext.putAll(ThreadLocalContext.getContextMap());
        return new DefaultLogEvent(level, loggerName, threadName, timestamp, message, throwable, marker, mergedContext);
    }
}