/** * Copyright (C) 2012-2014 52°North Initiative for Geospatial Open Source * Software GmbH * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2 as publishedby the Free * Software Foundation. * * If the program is linked with libraries which are licensed under one of the * following licenses, the combination of the program with the linked library is * not considered a "derivative work" of the program: * * - Apache License, version 2.0 * - Apache Software License, version 1.0 * - GNU Lesser General Public License, version 3 * - Mozilla Public License, versions 1.0, 1.1 and 2.0 * - Common Development and Distribution License (CDDL), version 1.0 * * Therefore the distribution of the program linked with libraries licensed under * the aforementioned licenses, is permitted by the copyright holders if the * distribution is compliant with both the GNU General Public License version 2 * and the aforementioned licenses. * * This program 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 General Public License for more details. */ /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package org.n52.series.api.proxy.v1.srv; import java.util.ArrayList; import java.util.concurrent.Callable; import java.util.concurrent.FutureTask; import java.util.concurrent.TimeUnit; import org.apache.xmlbeans.XmlObject; import org.n52.io.IoParameters; import org.n52.oxf.OXFException; import org.n52.oxf.adapter.ParameterContainer; import org.n52.oxf.adapter.OperationResult; import org.n52.oxf.ows.capabilities.Operation; import org.n52.sensorweb.v1.spi.ResultTimeService; import org.n52.server.da.AccessorThreadPool; import org.n52.server.da.oxf.OperationAccessor; import static org.n52.server.mgmt.ConfigurationContext.getSOSMetadatas; import org.n52.server.util.SosAdapterFactory; import org.n52.shared.serializable.pojos.sos.SOSMetadata; import org.n52.shared.serializable.pojos.sos.SosTimeseries; import org.n52.shared.serializable.pojos.sos.Station; import org.slf4j.LoggerFactory; public class ResultTimeAdapter implements ResultTimeService { private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(ResultTimeService.class); @Override public ArrayList<String> getResultTimeList(IoParameters parameters, String timeseriesId) { String start = parameters.getOther("start"); String end = parameters.getOther("end"); if (start == null || end == null) { LOGGER.error("Missing start or end parameter."); } for (SOSMetadata metadata : getSOSMetadatas()) { try { Station station = metadata.getStationByTimeSeriesId(timeseriesId); SosTimeseries timeseries = station.getTimeseriesById(timeseriesId); FutureTask<OperationResult> futureTask = new FutureTask<OperationResult>(createGDA(timeseries, metadata, start, end)); AccessorThreadPool.execute(futureTask); OperationResult result = futureTask.get(metadata.getTimeout(), TimeUnit.MILLISECONDS); if (result == null) { LOGGER.error("Get no result for GDA request"); } XmlObject result_xb = XmlObject.Factory.parse(result.getIncomingResultAsStream()); return getResultTimes(result_xb); } catch (Exception ex) { LOGGER.error("Get no result for GDA request", ex); } } return null; } private Callable<OperationResult> createGDA(SosTimeseries timeseries, SOSMetadata metadata, String start, String end) throws OXFException { ParameterContainer container = new ParameterContainer(); container.addParameterShell("procedure", timeseries.getProcedure().getProcedureId()); container.addParameterShell("observedProperty", timeseries.getPhenomenon().getPhenomenonId()); container.addParameterShell("featureOfInterest", timeseries.getFeature().getFeatureId()); container.addParameterShell("version", metadata.getVersion()); String[] array = new String[2]; array[0] = start; array[1] = end; container.addParameterShell("phenomenonTime", array); Operation operation = new Operation("GetDataAvailability", metadata.getServiceUrl(), metadata.getServiceUrl()); return new OperationAccessor(SosAdapterFactory.createSosAdapter(metadata), operation, container); } public ArrayList<String> getResultTimes(XmlObject result_xb) { ArrayList<String> timestamps = new ArrayList<String>(); String queryExpression = "declare namespace gda='http://www.opengis.net/sosgda/1.0'; $this/gda:GetDataAvailabilityResponse/gda:dataAvailabilityMember"; XmlObject[] response = result_xb.selectPath(queryExpression); if (response == null || response.length == 0) { queryExpression = "declare namespace gda='http://www.opengis.net/sos/2.0'; $this/gda:GetDataAvailabilityResponse/gda:dataAvailabilityMember"; response = result_xb.selectPath(queryExpression); } for (XmlObject xmlObject : response) { try { XmlObject[] extension = xmlObject.selectChildren("http://www.opengis.net/sosgda/1.0", "extension"); XmlObject[] dataRecord = extension[0].selectChildren("http://www.opengis.net/swe/2.0", "DataRecord"); XmlObject[] fields = dataRecord[0].selectChildren("http://www.opengis.net/swe/2.0", "field"); for (XmlObject field : fields) { XmlObject[] time = field.selectChildren("http://www.opengis.net/swe/2.0", "Time"); XmlObject[] value = time[0].selectChildren("http://www.opengis.net/swe/2.0", "value"); timestamps.add(value[0].newCursor().getTextValue()); } } catch (Exception e) { LOGGER.warn("Find no result times and return with an empty list.", e); } } return timestamps; } }