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/* 
 * Copyright (c) 2017 Georgi Pavlov ([email protected]).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the MIT license which accompanies 
 * this distribution, and is available at 
 * https://github.com/tengia/oauth-2/blob/master/LICENSE
 */
package net.oauth2.jackson;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

public class CommaDelimitedScopeDeserializer extends JsonDeserializer>{

	@Override
	public Collection deserialize(JsonParser parser, DeserializationContext ctxt)throws IOException, JsonProcessingException {
		String enumerationStr = parser.getText();
		String[] enumerationArr = enumerationStr.split("\\s*,\\s*");
		Collection enumList = new ArrayList<>(enumerationArr.length);
		for (String entry : enumerationArr) {
			enumList.add(entry.trim());
		}
		Collection list = Collections.unmodifiableCollection(enumList);
		return list;
	}
	
}