com.smartsheet.api.internal.json.ObjectValueDeserializer Maven / Gradle / Ivy

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Library for connecting to Smartsheet Services
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package com.smartsheet.api.internal.json;
/*
 * #[license]
 * Smartsheet SDK for Java
 * %%
 * Copyright (C) 2014 Smartsheet
 * %%
 * 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]
 */

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.smartsheet.api.models.*;
import com.smartsheet.api.models.enums.ObjectValueType;

import java.io.IOException;
import java.util.List;

public class ObjectValueDeserializer extends JsonDeserializer {

	@Override
	public ObjectValue deserialize(JsonParser jp, DeserializationContext ctxt)
			throws IOException, JsonProcessingException {

		final ObjectValue objectValue;

		if (jp.getCurrentToken() == JsonToken.START_OBJECT) {
			ObjectMapper mapper = new ObjectMapper();
			mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

			ObjectValueAttributeSuperset superset = mapper.readValue(jp, ObjectValueAttributeSuperset.class);

			ObjectValueType parsedObjectType;
			try {
				parsedObjectType = ObjectValueType.valueOf(superset.objectType);
			} catch (IllegalArgumentException e) {
				// If a new object type is introduced to the Smartsheet API that this version of the SDK doesn't support, return null instead of throwing an exception.
				return null;
			}

			switch (parsedObjectType) {
				case DURATION:
					objectValue = new Duration(
							superset.negative,
							superset.elapsed,
							superset.weeks,
							superset.days,
							superset.hours,
							superset.minutes,
							superset.seconds,
							superset.milliseconds);
					break;

				case PREDECESSOR_LIST:
					objectValue = new PredecessorList(superset.predecessors);
					break;

				case CONTACT:
					ContactObjectValue contactObjectValue = new ContactObjectValue();
					contactObjectValue.setName(superset.name);
					contactObjectValue.setEmail(superset.email);
					contactObjectValue.setId(superset.id);
					objectValue = contactObjectValue;
					break;


				case DATE:				// Intentional fallthrough
				case DATETIME:			// Intentional fallthrough
				case ABSTRACT_DATETIME:
					objectValue = new DateObjectValue(parsedObjectType, superset.value);
					break;

				default:
					objectValue = null;
			}
		} else {
			JsonToken token = jp.getCurrentToken();
			if (token.isBoolean()) {
				objectValue = new BooleanObjectValue(jp.getBooleanValue());
			} else if (token.isNumeric()) {
				objectValue = new NumberObjectValue(jp.getNumberValue());
			} else {
				objectValue = new StringObjectValue(jp.getText());
			}
		}
		return objectValue;
	}

	private static class ObjectValueAttributeSuperset {
		public String objectType; // This needs to be represented as a string so that any new object types added won't completely break the API

		// PREDECESSOR_LIST specific attributes
		public List predecessors;

		// DURATION specific attributes
		public Boolean negative;
		public Boolean elapsed;
		public Double weeks;
		public Double days;
		public Double hours;
		public Double minutes;
		public Double seconds;
		public Double milliseconds;

		// CONTACT specific attributes
		public String id;
		public String name;
		public String email;

		// Various other types
		public String value;
	}
}