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path: root/common-logging/src/main/java/org/openecomp/policy/common/logging/nsa/LoggingContext.java
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/*-
 * ============LICENSE_START=======================================================
 * ECOMP-Logging
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.policy.common.logging.nsa;

/**
 * An interface for providing data into the underlying logging context.  Systems should use
 * this interface rather than log system specific MDC solutions in order to reduce dependencies.
 * 
 * A LoggingContext is specific to the calling thread.
 * 
 */
public interface LoggingContext
{
	/**
	 * Put a key/value pair into the logging context, replacing an entry with the same key.
	 * @param key
	 * @param value
	 */
	void put ( String key, String value );

	/**
	 * Put a key/value pair into the logging context, replacing an entry with the same key.
	 * @param key
	 * @param value
	 */
	void put ( String key, long value );

	/**
	 * Get a string value, returning the default value if the value is missing.
	 * @param key
	 * @param defaultValue
	 * @return a string value
	 */
	String get ( String key, String defaultValue );
	
	/**
	 * Get a long value, returning the default value if the value is missing or not a long.
	 * @param key
	 * @param defaultValue
	 * @return a long value
	 */
	long get ( String key, long defaultValue );
}