001// *************************************************************************************************************************** 002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * 003// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * 004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * 005// * with the License. You may obtain a copy of the License at * 006// * * 007// * http://www.apache.org/licenses/LICENSE-2.0 * 008// * * 009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * 010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * 011// * specific language governing permissions and limitations under the License. * 012// *************************************************************************************************************************** 013package org.apache.juneau.rest; 014 015import static org.apache.juneau.internal.CollectionUtils.*; 016import static org.apache.juneau.internal.IOUtils.*; 017 018import java.io.*; 019import java.util.*; 020 021import org.apache.juneau.*; 022import org.apache.juneau.http.*; 023 024/** 025 * @deprecated Use {@link org.apache.juneau.http.StreamResource} 026 */ 027@Deprecated 028public class StreamResource implements Streamable { 029 030 private final MediaType mediaType; 031 private final byte[][] contents; 032 private final Map<String,Object> headers; 033 034 /** 035 * Creates a new instance of a {@link StreamResourceBuilder} 036 * 037 * @return A new instance of a {@link StreamResourceBuilder} 038 */ 039 public static StreamResourceBuilder create() { 040 return new StreamResourceBuilder(); 041 } 042 043 /** 044 * Constructor. 045 * 046 * @param mediaType The resource media type. 047 * @param headers The HTTP response headers for this streamed resource. 048 * @param contents 049 * The resource contents. 050 * <br>If multiple contents are specified, the results will be concatenated. 051 * <br>Contents can be any of the following: 052 * <ul> 053 * <li><code><jk>byte</jk>[]</code> 054 * <li><code>InputStream</code> 055 * <li><code>Reader</code> - Converted to UTF-8 bytes. 056 * <li><code>File</code> 057 * <li><code>CharSequence</code> - Converted to UTF-8 bytes. 058 * </ul> 059 * @throws IOException 060 */ 061 public StreamResource(MediaType mediaType, Map<String,Object> headers, Object...contents) throws IOException { 062 this.mediaType = mediaType; 063 064 this.headers = immutableMap(headers); 065 066 this.contents = new byte[contents.length][]; 067 for (int i = 0; i < contents.length; i++) { 068 Object c = contents[i]; 069 if (c == null) 070 this.contents[i] = new byte[0]; 071 else if (c instanceof byte[]) 072 this.contents[i] = (byte[])c; 073 else if (c instanceof InputStream) 074 this.contents[i] = readBytes((InputStream)c, 1024); 075 else if (c instanceof File) 076 this.contents[i] = readBytes((File)c); 077 else if (c instanceof Reader) 078 this.contents[i] = read((Reader)c).getBytes(UTF8); 079 else if (c instanceof CharSequence) 080 this.contents[i] = ((CharSequence)c).toString().getBytes(UTF8); 081 else 082 throw new IOException("Invalid class type passed to StreamResource: " + c.getClass().getName()); 083 } 084 } 085 086 /** 087 * Get the HTTP response headers. 088 * 089 * @return 090 * The HTTP response headers. 091 * <br>An unmodifiable map. 092 * <br>Never <jk>null</jk>. 093 */ 094 public Map<String,Object> getHeaders() { 095 return headers; 096 } 097 098 @Override /* Streamable */ 099 public void streamTo(OutputStream os) throws IOException { 100 for (byte[] b : contents) 101 os.write(b); 102 os.flush(); 103 } 104 105 @Override /* Streamable */ 106 public MediaType getMediaType() { 107 return mediaType; 108 } 109}