GridDDMFormFieldValueRequestParameterRetriever.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.dynamic.data.mapping.type.grid.internal;

import com.liferay.dynamic.data.mapping.form.field.type.DDMFormFieldValueRequestParameterRetriever;
import com.liferay.portal.kernel.json.JSONFactory;
import com.liferay.portal.kernel.json.JSONObject;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Pedro Queiroz
 */
@Component(immediate = true, property = "ddm.form.field.type.name=grid")
public class GridDDMFormFieldValueRequestParameterRetriever
	implements DDMFormFieldValueRequestParameterRetriever {

	@Override
	public String get(
		HttpServletRequest httpServletRequest, String ddmFormFieldParameterName,
		String defaultDDMFormFieldParameterValue) {

		JSONObject jsonObject = jsonFactory.createJSONObject();

		Map<String, String[]> parametersMap =
			httpServletRequest.getParameterMap();

		if (!parametersMap.containsKey(ddmFormFieldParameterName)) {
			return jsonObject.toString();
		}

		String[] parameterValues = parametersMap.get(ddmFormFieldParameterName);

		for (String value : parameterValues) {
			if (!value.isEmpty()) {
				String[] values = value.split(";");

				jsonObject.put(values[0], values[1]);
			}
		}

		return jsonObject.toString();
	}

	@Reference
	protected JSONFactory jsonFactory;

}