/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.core.impl.idp.process.spring.test;


import java.io.Serializable;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import at.gv.egiz.eaaf.core.api.idp.process.ExpressionEvaluationContext;

/**
 * Adapter class for {@link ExpressionEvaluationContext}. Intended to be used for testing purposes.
 * 
 * @author tknall
 * 
 */
public class ExpressionContextAdapter implements ExpressionEvaluationContext {
 
	private static final long serialVersionUID = 1L;

	private Map<String, Serializable> ctxData = Collections.synchronizedMap(new HashMap<String, Serializable>());

	/**
	 * Returns a certain {@link Serializable} object associated with a certain {@code key}.
	 * 
	 * @param key
	 *            The key.
	 * @return The object or {@code null} if no object was found stored with that key or if a {@code null} value was
	 *         stored.
	 */
	Serializable get(String key) {
		return ctxData.get(key);
	}

	/**
	 * Stores a {@link Serializable} with a certain {@code key}.
	 * 
	 * @param key
	 *            The key.
	 * @param object
	 *            The object.
	 */
	void put(String key, Serializable object) {
		ctxData.put(key, object);
	}

	@Override
	public Map<String, Serializable> getCtx() {
		return Collections.unmodifiableMap(ctxData);
	}

}