Java tutorial
package org.apache.taverna.scufl2.translator.t2flow.defaultactivities; /* * * 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. * */ import static org.apache.taverna.scufl2.translator.t2flow.T2FlowParser.ravenURI; import java.net.URI; import org.apache.taverna.scufl2.api.activity.Activity; import org.apache.taverna.scufl2.api.common.URITools; import org.apache.taverna.scufl2.api.configurations.Configuration; import org.apache.taverna.scufl2.api.io.ReaderException; import org.apache.taverna.scufl2.translator.t2flow.ParserState; import org.apache.taverna.scufl2.translator.t2flow.T2FlowParser; import org.apache.taverna.scufl2.xml.t2flow.jaxb.ActivityPortDefinitionBean; import org.apache.taverna.scufl2.xml.t2flow.jaxb.BasicArtifact; import org.apache.taverna.scufl2.xml.t2flow.jaxb.BeanshellConfig; import org.apache.taverna.scufl2.xml.t2flow.jaxb.ClassLoaderSharing; import org.apache.taverna.scufl2.xml.t2flow.jaxb.ConfigBean; import com.fasterxml.jackson.databind.node.ArrayNode; import com.fasterxml.jackson.databind.node.ObjectNode; public class BeanshellActivityParser extends AbstractActivityParser { private static final URI activityRavenURI = ravenURI .resolve("net.sf.taverna.t2.activities/beanshell-activity/"); private static final URI localWorkerActivityRavenURI = ravenURI .resolve("net.sf.taverna.t2.activities/localworker-activity/"); private static final String activityClassName = "net.sf.taverna.t2.activities.beanshell.BeanshellActivity"; private static final String localWorkerActivityClassName = "net.sf.taverna.t2.activities.localworker.LocalworkerActivity"; public static final URI ACTIVITY_URI = URI.create("http://ns.taverna.org.uk/2010/activity/beanshell"); public static final URI LOCAL_WORKER_URI = URI.create("http://ns.taverna.org.uk/2010/activity/localworker/"); public static final URI DEPENDENCY_URI = URI.create("http://ns.taverna.org.uk/2010/activity/dependency"); private static URITools uriTools = new URITools(); @Override public boolean canHandlePlugin(URI activityURI) { String activityUriStr = activityURI.toASCIIString(); if (activityUriStr.startsWith(activityRavenURI.toASCIIString()) && activityUriStr.endsWith(activityClassName)) return true; if (activityUriStr.startsWith(localWorkerActivityRavenURI.toASCIIString()) && activityUriStr.endsWith(localWorkerActivityClassName)) return true; return false; } @Override public URI mapT2flowRavenIdToScufl2URI(URI t2flowActivity) { return ACTIVITY_URI; } @Override public Configuration parseConfiguration(T2FlowParser t2FlowParser, ConfigBean configBean, ParserState parserState) throws ReaderException { BeanshellConfig beanshellConfig = unmarshallConfig(t2FlowParser, configBean, "xstream", BeanshellConfig.class); Configuration configuration = new Configuration(); configuration.setParent(parserState.getCurrentProfile()); ObjectNode json = (ObjectNode) configuration.getJson(); configuration.setType(ACTIVITY_URI.resolve("#Config")); if (beanshellConfig.getLocalworkerName() != null) { URI localWorkerURI = LOCAL_WORKER_URI .resolve(uriTools.validFilename(beanshellConfig.getLocalworkerName())); /* * FIXME: As we can't read the annotation chain yet, we can't tell * whether this local worker has been edited or not, and so can't * use #definedBy */ json.put("derivedFrom", localWorkerURI.toString()); } String script = beanshellConfig.getScript(); json.put("script", script); ClassLoaderSharing classLoaderSharing = beanshellConfig.getClassLoaderSharing(); if (classLoaderSharing == ClassLoaderSharing.SYSTEM) json.put("classLoaderSharing", "system"); else { // default is "workflow" but don't need to be expressed // json.put("classLoaderSharing", "workflow"); } if (beanshellConfig.getLocalDependencies() != null) { ArrayNode dependencies = json.arrayNode(); for (String localDep : beanshellConfig.getLocalDependencies().getString()) dependencies.add(localDep); if (dependencies.size() > 0) json.put("localDependency", dependencies); } /* * Note: Maven Dependencies are not supported by Taverna 3 - only here * for informational purposes and potential t2flow->t2flow scenarios */ if (beanshellConfig.getArtifactDependencies() != null) { ArrayNode dependencies = json.arrayNode(); for (BasicArtifact mavenDep : beanshellConfig.getArtifactDependencies() .getNetSfTavernaRavenRepositoryBasicArtifact()) { ObjectNode mavenDependency = json.objectNode(); dependencies.add(mavenDependency); mavenDependency.put("groupId", mavenDep.getGroupId()); mavenDependency.put("artifactId", mavenDep.getArtifactId()); mavenDependency.put("version", mavenDep.getVersion()); } if (dependencies.size() > 0) json.put("mavenDependency", dependencies); } Activity activity = parserState.getCurrentActivity(); activity.getInputPorts().clear(); activity.getOutputPorts().clear(); for (ActivityPortDefinitionBean portBean : beanshellConfig.getInputs() .getNetSfTavernaT2WorkflowmodelProcessorActivityConfigActivityInputPortDefinitionBean()) parseAndAddInputPortDefinition(portBean, configuration, activity); for (ActivityPortDefinitionBean portBean : beanshellConfig.getOutputs() .getNetSfTavernaT2WorkflowmodelProcessorActivityConfigActivityOutputPortDefinitionBean()) parseAndAddOutputPortDefinition(portBean, configuration, activity); return configuration; } }