JSONObjectConverter.java

/**
 * Copyright 2016 Alex Yanchenko
 *
 * 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.droidparts.inner.converter;

import android.content.ContentValues;
import android.database.Cursor;

import org.json.JSONObject;

import org.droidparts.inner.TypeHelper;

public class JSONObjectConverter extends Converter<JSONObject> {

	@Override
	public boolean canHandle(Class<?> cls) {
		return TypeHelper.isJSONObject(cls);
	}

	@Override
	public String getDBColumnType() {
		return TEXT;
	}

	@Override
	public <G1, G2> void putToJSON(Class<JSONObject> valType, Class<G1> genericArg1, Class<G2> genericArg2,
	                               JSONObject obj, String key, JSONObject val) throws Exception {
		obj.put(key, val.toString());
	}

	@Override
	public <G1, G2> JSONObject readFromJSON(Class<JSONObject> valType, Class<G1> genericArg1, Class<G2> genericArg2,
	                                        JSONObject obj, String key) throws Exception {
		try {
			return obj.getJSONObject(key);
		} catch (Exception e) {
			return parseFromString(valType, genericArg1, genericArg2, obj.getString(key));
		}
	}

	@Override
	protected <G1, G2> JSONObject parseFromString(Class<JSONObject> valType, Class<G1> genericArg1,
	                                              Class<G2> genericArg2, String str) throws Exception {
		return new JSONObject(str);
	}

	@Override
	public <G1, G2> void putToContentValues(Class<JSONObject> valueType, Class<G1> genericArg1, Class<G2> genericArg2,
	                                        ContentValues cv, String key, JSONObject val) {
		cv.put(key, val.toString());
	}

	@Override
	public <G1, G2> JSONObject readFromCursor(Class<JSONObject> valType, Class<G1> genericArg1, Class<G2> genericArg2,
	                                          Cursor cursor, int columnIndex) throws Exception {
		return new JSONObject(cursor.getString(columnIndex));
	}

}