| /******************************************************************************* |
| * Copyright (C) 2011 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program 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 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| package net.sf.taverna.t2.activities.rest; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import net.sf.taverna.t2.activities.rest.URISignatureHandler.URISignatureParsingException; |
| import net.sf.taverna.t2.security.credentialmanager.CredentialManager; |
| import net.sf.taverna.t2.workflowmodel.Edits; |
| import net.sf.taverna.t2.workflowmodel.processor.activity.ActivityConfigurationException; |
| import net.sf.taverna.t2.workflowmodel.processor.activity.ActivityFactory; |
| import net.sf.taverna.t2.workflowmodel.processor.activity.ActivityInputPort; |
| import net.sf.taverna.t2.workflowmodel.processor.activity.ActivityOutputPort; |
| |
| import org.apache.http.client.CredentialsProvider; |
| import org.apache.log4j.Logger; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| |
| /** |
| * An {@link ActivityFactory} for creating <code>RESTActivity</code>. |
| * |
| * @author David Withers |
| */ |
| public class RESTActivityFactory implements ActivityFactory { |
| |
| private static Logger logger = Logger.getLogger(RESTActivityFactory.class); |
| |
| private CredentialsProvider credentialsProvider; |
| private Edits edits; |
| |
| @Override |
| public RESTActivity createActivity() { |
| RESTActivity activity = new RESTActivity(credentialsProvider); |
| activity.setEdits(edits); |
| return activity; |
| } |
| |
| @Override |
| public URI getActivityType() { |
| return URI.create(RESTActivity.URI); |
| } |
| |
| @Override |
| public JsonNode getActivityConfigurationSchema() { |
| ObjectMapper objectMapper = new ObjectMapper(); |
| try { |
| return objectMapper.readTree(getClass().getResource("/schema.json")); |
| } catch (IOException e) { |
| return objectMapper.createObjectNode(); |
| } |
| } |
| |
| public void setCredentialManager(CredentialManager credentialManager) { |
| credentialsProvider = new RESTActivityCredentialsProvider(credentialManager); |
| } |
| |
| @Override |
| public Set<ActivityInputPort> getInputPorts(JsonNode configuration) |
| throws ActivityConfigurationException { |
| Set<ActivityInputPort> activityInputPorts = new HashSet<>(); |
| RESTActivityConfigurationBean configBean = new RESTActivityConfigurationBean(configuration); |
| // ---- CREATE INPUTS ---- |
| |
| // all input ports are dynamic and depend on the configuration |
| // of the particular instance of the REST activity |
| |
| // POST and PUT operations send data, so an input for the message body |
| // is required |
| if (RESTActivity.hasMessageBodyInputPort(configBean.getHttpMethod())) { |
| // the input message will be just an XML string for now |
| activityInputPorts.add(edits.createActivityInputPort(RESTActivity.IN_BODY, 0, true, null, configBean.getOutgoingDataFormat() |
| .getDataFormat())); |
| } |
| |
| // now process the URL signature - extract all placeholders and create |
| // an input port for each |
| List<String> placeholders = URISignatureHandler |
| .extractPlaceholders(configBean.getUrlSignature()); |
| String acceptsHeaderValue = configBean.getAcceptsHeaderValue(); |
| if (acceptsHeaderValue != null && !acceptsHeaderValue.isEmpty()) { |
| try { |
| List<String> acceptsPlaceHolders = URISignatureHandler |
| .extractPlaceholders(acceptsHeaderValue); |
| acceptsPlaceHolders.removeAll(placeholders); |
| placeholders.addAll(acceptsPlaceHolders); |
| } |
| catch (URISignatureParsingException e) { |
| logger.error(e); |
| } |
| } |
| for (ArrayList<String> httpHeaderNameValuePair : configBean.getOtherHTTPHeaders()) { |
| try { |
| List<String> headerPlaceHolders = URISignatureHandler |
| .extractPlaceholders(httpHeaderNameValuePair.get(1)); |
| headerPlaceHolders.removeAll(placeholders); |
| placeholders.addAll(headerPlaceHolders); |
| } |
| catch (URISignatureParsingException e) { |
| logger.error(e); |
| } |
| } |
| for (String placeholder : placeholders) { |
| // these inputs will have a dynamic name each; |
| // the data type is string as they are the values to be |
| // substituted into the URL signature at the execution time |
| activityInputPorts.add(edits.createActivityInputPort(placeholder, 0, true, null, String.class)); |
| } |
| return activityInputPorts; |
| } |
| |
| @Override |
| public Set<ActivityOutputPort> getOutputPorts(JsonNode configuration) |
| throws ActivityConfigurationException { |
| Set<ActivityOutputPort> activityOutputPorts = new HashSet<>(); |
| RESTActivityConfigurationBean configBean = new RESTActivityConfigurationBean(configuration); |
| // ---- CREATE OUTPUTS ---- |
| // all outputs are of depth 0 - i.e. just a single value on each; |
| |
| // output ports for Response Body and Status are static - they don't |
| // depend on the configuration of the activity; |
| activityOutputPorts.add(edits.createActivityOutputPort(RESTActivity.OUT_RESPONSE_BODY, 0, 0)); |
| activityOutputPorts.add(edits.createActivityOutputPort(RESTActivity.OUT_STATUS, 0, 0)); |
| if (configBean.getShowActualUrlPort()) { |
| activityOutputPorts.add(edits.createActivityOutputPort(RESTActivity.OUT_COMPLETE_URL, 0, 0)); |
| } |
| if (configBean.getShowResponseHeadersPort()) { |
| activityOutputPorts.add(edits.createActivityOutputPort(RESTActivity.OUT_RESPONSE_HEADERS, 1, 1)); |
| } |
| // Redirection port may be hidden/shown |
| if (configBean.getShowRedirectionOutputPort()) { |
| activityOutputPorts.add(edits.createActivityOutputPort(RESTActivity.OUT_REDIRECTION, 0, 0)); |
| } |
| return activityOutputPorts; |
| } |
| |
| public void setEdits(Edits edits) { |
| this.edits = edits; |
| } |
| |
| } |