| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.taverna.gis.ui.serviceprovider; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import javax.swing.Icon; |
| |
| import org.apache.taverna.scufl2.api.common.Visitor; |
| import org.apache.taverna.scufl2.api.common.WorkflowBean; |
| import org.apache.taverna.scufl2.api.configurations.Configuration; |
| import org.apache.taverna.servicedescriptions.AbstractConfigurableServiceProvider; |
| import org.apache.taverna.servicedescriptions.ConfigurableServiceProvider; |
| import org.apache.taverna.servicedescriptions.ServiceDescription; |
| import org.apache.taverna.servicedescriptions.ServiceDescriptionProvider; |
| import org.apache.taverna.servicedescriptions.ServiceDescriptionProvider.FindServiceDescriptionsCallBack; |
| import org.apache.taverna.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean; |
| import org.apache.taverna.workflowmodel.processor.activity.config.ActivityOutputPortDefinitionBean; |
| import org.n52.wps.client.WPSClientSession; |
| |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| import net.opengis.wps.x100.InputDescriptionType; |
| import net.opengis.wps.x100.OutputDescriptionType; |
| import net.opengis.wps.x100.ProcessDescriptionType; |
| |
| public class GisServiceProvider extends AbstractConfigurableServiceProvider |
| implements ConfigurableServiceProvider { |
| |
| |
| public GisServiceProvider() { |
| super(defaultConfig()); |
| |
| } |
| |
| private static Configuration defaultConfig() { |
| Configuration c = new Configuration(); |
| ObjectNode conf = c.getJsonAsObjectNode(); |
| conf.put("osgiServiceUri", "http://localhost:8080/geoserver/ows"); |
| conf.put("processIdentifier", "gs:StringConcatWPS"); |
| return c; |
| } |
| |
| private static final URI providerId = GisServiceDesc.ACTIVITY_TYPE.resolve("#provider"); |
| |
| /** |
| * Do the actual search for services. Return using the callBack parameter. |
| */ |
| @SuppressWarnings("unchecked") |
| public void findServiceDescriptionsAsync(FindServiceDescriptionsCallBack callBack) { |
| // Use callback.status() for long-running searches |
| callBack.status("Resolving GIS services"); |
| |
| List<ServiceDescription> results = new ArrayList<ServiceDescription>(); |
| |
| // FIXME: Implement the actual service search/lookup instead |
| // of dummy for-loop |
| |
| GisServiceDesc service = new GisServiceDesc(); |
| // Populate the service description bean |
| ObjectNode conf = getConfiguration().getJsonAsObjectNode(); |
| String serviceUri = conf.get("osgiServiceUri").asText(); |
| service.setOgcServiceUri(URI.create(serviceUri)); |
| String processIdentifier = conf.get("processIdentifier").asText(); |
| service.setProcessIdentifier(processIdentifier); |
| |
| // TODO: Optional: set description (Set a better description |
| service.setDescription(processIdentifier); |
| |
| // TODO: Exctract in a separate method |
| // Get input ports |
| |
| WPSClientSession wpsClient = WPSClientSession.getInstance(); |
| |
| ProcessDescriptionType processDescription; |
| try { |
| processDescription = wpsClient |
| .getProcessDescription(serviceUri, processIdentifier); |
| |
| InputDescriptionType[] inputList = processDescription.getDataInputs() |
| .getInputArray(); |
| |
| List<ActivityInputPortDefinitionBean> inputPortDefinitions = new ArrayList<ActivityInputPortDefinitionBean>(); |
| |
| for (InputDescriptionType input : inputList) { |
| ActivityInputPortDefinitionBean newInputPort = new ActivityInputPortDefinitionBean(); |
| newInputPort.setName(input.getIdentifier().getStringValue()); |
| newInputPort.setDepth(0); |
| newInputPort.setAllowsLiteralValues(true); |
| newInputPort.setHandledReferenceSchemes(null); |
| newInputPort.setTranslatedElementType(String.class); |
| |
| inputPortDefinitions.add(newInputPort); |
| |
| } |
| |
| // service.setInputPortDefinitions(inputPortDefinitions); |
| |
| |
| // Get output ports |
| |
| OutputDescriptionType[] outputList = processDescription.getProcessOutputs().getOutputArray(); |
| List<ActivityOutputPortDefinitionBean> outputPortDefinitions = new ArrayList<ActivityOutputPortDefinitionBean>(); |
| |
| for( OutputDescriptionType output : outputList ) |
| { |
| ActivityOutputPortDefinitionBean newOutputPort = new ActivityOutputPortDefinitionBean(); |
| newOutputPort.setName(output.getIdentifier().getStringValue()); |
| newOutputPort.setDepth(0); |
| |
| outputPortDefinitions.add(newOutputPort); |
| |
| } |
| |
| //service.setOutputPortDefinitions(outputPortDefinitions); |
| |
| } catch (IOException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| |
| results.add(service); |
| |
| // partialResults() can also be called several times from inside |
| // for-loop if the full search takes a long time |
| callBack.partialResults(results); |
| |
| // No more results will be coming |
| callBack.finished(); |
| } |
| |
| /** |
| * Icon for service provider |
| */ |
| public Icon getIcon() { |
| return GisServiceIcon.getIcon(); |
| } |
| |
| /** |
| * Name of service provider, appears in right click for 'Remove service |
| * provider' |
| */ |
| public String getName() { |
| return "Geospatial Web Services"; |
| } |
| |
| @Override |
| public String toString() { |
| return "Geospatial Web Services " + getConfiguration().getJson().get("osgiServiceUri"); |
| } |
| |
| public String getId() { |
| return providerId.toASCIIString(); |
| } |
| |
| @Override |
| protected List<? extends Object> getIdentifyingData() { |
| return Arrays.asList(getConfiguration().getJson().get("osgiServiceUri"), |
| getConfiguration().getJson().get("processIdentifier")); |
| } |
| |
| @Override |
| public ServiceDescriptionProvider newInstance() { |
| return new GisServiceProvider(); |
| } |
| |
| @Override |
| public URI getType() { |
| return providerId; |
| } |
| |
| @Override |
| public void setType(URI type) { |
| } |
| |
| @Override |
| public boolean accept(Visitor visitor) { |
| return false; |
| } |
| |
| |
| } |