| 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; |
| } |
| |
| } |