1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.any23.source; 19 20 import java.io.ByteArrayOutputStream; 21 import java.io.IOException; 22 import java.io.InputStream; 23 24 /** 25 * Creates local copies of {@link DocumentSource} by reading them into an in-memory buffer. This allows opening several 26 * input streams over the content at lower cost. 27 * 28 * @author Richard Cyganiak (richard@cyganiak.de) 29 */ 30 public class MemCopyFactory implements LocalCopyFactory { 31 32 private static final int TEMP_SIZE = 10000; 33 34 public static byte[] toByteArray(InputStream in) throws IOException { 35 ByteArrayOutputStream out = new ByteArrayOutputStream(); 36 byte[] temp = new byte[TEMP_SIZE]; 37 while (true) { 38 int bytes = in.read(temp); 39 if (bytes == -1) 40 break; 41 out.write(temp, 0, bytes); 42 } 43 return out.toByteArray(); 44 } 45 46 public DocumentSourceocumentSource">DocumentSource createLocalCopy(final DocumentSource in) throws IOException { 47 return new ByteArrayDocumentSource(in.openInputStream(), in.getDocumentIRI(), in.getContentType()); 48 } 49 }