org.springframework.social.linkedin.api.impl.json.ConnectionAuthorizationDeserializer Maven / Gradle / Ivy

/*
 * Copyright 2014 the original author or authors.
 *
 * 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 org.springframework.social.linkedin.api.impl.json;

import java.io.IOException;

import org.springframework.social.linkedin.api.ConnectionAuthorization;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

final class ConnectionAuthorizationDeserializer extends JsonDeserializer  {

	public ConnectionAuthorization deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
		ObjectMapper mapper = new ObjectMapper();
		mapper.registerModule(new LinkedInModule());
		if(jp.hasCurrentToken() && jp.getCurrentToken().equals(JsonToken.START_OBJECT)) {
			JsonNode dataNode = jp.readValueAs(JsonNode.class).get("headers").get("values").get(0);
			if (dataNode != null) {
				return mapper.reader(new TypeReference() {}).readValue(dataNode);
			}
		}
		throw ctxt.mappingException("Expected JSON object");
	}

}