package org.apache.taverna.scufl2.wfdesc; /* * * 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.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; public class WfdescReader implements WorkflowBundleReader { public static final String APPLICATION_RDF_XML = "application/rdf+xml"; public static final String TEXT_TURTLE = "text/turtle"; public static final String TEXT_VND_WF4EVER_WFDESC_TURTLE = "text/vnd.wf4ever.wfdesc+turtle"; @Override public Set<String> getMediaTypes() { return Collections.emptySet(); //return new HashSet<String>(Arrays.asList(TEXT_VND_WF4EVER_WFDESC_TURTLE, TEXT_TURTLE, APPLICATION_RDF_XML)); } @Override public WorkflowBundle readBundle(File bundleFile, String mediaType) throws ReaderException, IOException { return null; } @Override public WorkflowBundle readBundle(InputStream inputStream, String mediaType) throws ReaderException, IOException { // TODO Auto-generated method stub return null; } @Override public String guessMediaTypeForSignature(byte[] firstBytes) { if (firstBytes.length < 100) { return null; } Charset latin1 = Charset.forName("ISO-8859-1"); String firstChars = new String(firstBytes, latin1); String mimeType = null; if (firstChars.contains("@prefix") || firstChars.contains("@base")) { // mimeType = TEXT_TURTLE; if (firstChars.contains("http://purl.org/wf4ever/wfdesc")) { mimeType = TEXT_VND_WF4EVER_WFDESC_TURTLE; } } // if (firstChars.contains("<") && firstChars.contains(">") && firstChars.contains("xmlns") && firstChars.contains("http://www.w3.org/1999/02/22-rdf-syntax-ns#")) { // mimeType = APPLICATION_RDF_XML; // } return mimeType; } }