eu.esdihumboldt.hale.io.codelist.InspireCodeListAdvisor.java Source code

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Here is the source code for eu.esdihumboldt.hale.io.codelist.InspireCodeListAdvisor.java

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/*
 * Copyright (c) 2015 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.io.codelist;

import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.fluent.Response;
import org.eclipse.core.runtime.content.IContentType;

import eu.esdihumboldt.hale.common.core.io.impl.DefaultResourceAdvisor;
import eu.esdihumboldt.hale.common.core.io.report.IOReporter;
import eu.esdihumboldt.hale.common.core.io.supplier.LocatableInputSupplier;
import eu.esdihumboldt.hale.io.codelist.inspire.reader.INSPIRECodeListReader;

/**
 * Advisor for the inspire code list content type
 * 
 * @author Sameer Sheikh
 */
public class InspireCodeListAdvisor extends DefaultResourceAdvisor {

    @Override
    public void copyResource(LocatableInputSupplier<? extends InputStream> resource, final Path target,
            IContentType resourceType, boolean includeRemote, IOReporter reporter) throws IOException {

        URI uri = resource.getLocation();
        String uriScheme = uri.getScheme();
        if (uriScheme.equals("http")) {
            // Get the response for the given uri
            Response response = INSPIRECodeListReader.getResponse(uri);

            // Handle the fluent response
            response.handleResponse(new ResponseHandler<Boolean>() {

                @Override
                public Boolean handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
                    StatusLine status = response.getStatusLine();
                    HttpEntity entity = response.getEntity();

                    if (status.getStatusCode() >= 300) {
                        throw new HttpResponseException(status.getStatusCode(), status.getReasonPhrase());
                    }
                    if (entity == null) {
                        throw new ClientProtocolException();
                    }
                    // Copy the resource file to the target path
                    Files.copy(entity.getContent(), target);
                    return true;
                }
            });
        } else {
            super.copyResource(resource, target, resourceType, includeRemote, reporter);
        }
    }
}