Añade utilidad de para obtener capas

package es.redmic.atlascommands.utils;

/*-

 * #%L

 * Atlas-management

 * %%

 * Copyright (C) 2019 REDMIC Project / Server

 * %%

 * 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.

 * #L%

 */

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import java.util.HashMap;

import java.util.List;

import org.geotools.data.ows.Layer;

import org.geotools.data.ows.WMSCapabilities;

import org.geotools.data.wms.WebMapServer;

import org.geotools.ows.ServiceException;

import org.mapstruct.factory.Mappers;

import org.opengis.metadata.citation.ResponsibleParty;

import es.redmic.atlascommands.mapper.ContactMapper;

import es.redmic.atlascommands.mapper.LayerMapper;

import es.redmic.atlaslib.dto.layer.ContactDTO;

import es.redmic.atlaslib.dto.layer.LayerDTO;

import es.redmic.exception.custom.ResourceNotFoundException;

public abstract class Capabilities {

	public static HashMap<String, LayerDTO> getCapabilities(String url) {

		URL serverURL;

		try {

			serverURL = new URL(url.split("\\?")[0]);

		} catch (MalformedURLException e) {

			e.printStackTrace();

			// TODO: excepción propia

			throw new ResourceNotFoundException();

		}

		WebMapServer wms;

		try {

			wms = new WebMapServer(serverURL);

		} catch (ServiceException | IOException e) {

			e.printStackTrace();

			// TODO: excepción propia

			throw new ResourceNotFoundException();

		}

		return getLayers(url, wms.getCapabilities());

	}

	private static HashMap<String, LayerDTO> getLayers(String url, WMSCapabilities capabilities) {

		HashMap<String, LayerDTO> layers = new HashMap<String, LayerDTO>();

		List<Layer> layerList = capabilities.getLayerList();

		for (int i = 0; i < layerList.size(); i++) {

			if (layerList.get(i).getName() != null) {

				LayerDTO layerAux = Mappers.getMapper(LayerMapper.class).map(layerList.get(i), url);

				layerAux.setContact(getContact(capabilities.getService().getContactInformation()));

				layerAux.setFormats(capabilities.getRequest().getGetMap().getFormats());

				layers.put(layerAux.getName(), layerAux);

			}

		}

		return layers;

	}

	private static ContactDTO getContact(ResponsibleParty contact) {

		if (contact == null)

			return null;

		return Mappers.getMapper(ContactMapper.class).map(contact);

	}

}