package org.apache.taverna.scufl2.rdfxml; /* * * 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 java.io.File; import java.io.IOException; import java.io.InputStream; import java.net.URI; import java.nio.charset.Charset; import java.util.Collections; import java.util.Set; import org.apache.taverna.scufl2.api.container.WorkflowBundle; import org.apache.taverna.scufl2.api.io.ReaderException; import org.apache.taverna.scufl2.api.io.WorkflowBundleReader; import org.apache.taverna.scufl2.ucfpackage.UCFPackage; public class RDFXMLReader implements WorkflowBundleReader { public static final String APPLICATION_VND_TAVERNA_SCUFL2_WORKFLOW_BUNDLE = "application/vnd.taverna.scufl2.workflow-bundle"; public static final String APPLICATION_RDF_XML = "application/rdf+xml"; @Override public Set<String> getMediaTypes() { return Collections.singleton(APPLICATION_VND_TAVERNA_SCUFL2_WORKFLOW_BUNDLE); } @Override public WorkflowBundle readBundle(File bundleFile, String mediaType) throws ReaderException, IOException { UCFPackage ucfPackage = new UCFPackage(bundleFile); WorkflowBundleParser deserializer = new WorkflowBundleParser(); return deserializer.readWorkflowBundle(ucfPackage, bundleFile.toURI()); } @Override public WorkflowBundle readBundle(InputStream inputStream, String mediaType) throws ReaderException, IOException { UCFPackage ucfPackage = new UCFPackage(inputStream); WorkflowBundleParser deserializer = new WorkflowBundleParser(); return deserializer.readWorkflowBundle(ucfPackage, URI.create("")); } @Override public String guessMediaTypeForSignature(byte[] firstBytes) { if (firstBytes.length < 100) return null; Charset latin1 = Charset.forName("ISO-8859-1"); String pk = new String(firstBytes, 0, 2, latin1); if (!pk.equals("PK")) return null; String mimetype = new String(firstBytes, 30, 8, latin1); if (!mimetype.equals("mimetype")) return null; String bundle = new String(firstBytes, 38, APPLICATION_VND_TAVERNA_SCUFL2_WORKFLOW_BUNDLE.length(), latin1); if (!bundle.equals(APPLICATION_VND_TAVERNA_SCUFL2_WORKFLOW_BUNDLE)) return null; return APPLICATION_VND_TAVERNA_SCUFL2_WORKFLOW_BUNDLE; } }