Tue, 06 Mar 2012 16:09:35 -0800
7150322: Stop using drop source bundles in jaxws
Reviewed-by: darcy, ohrstrom
ohair@286 | 1 | /* |
ohair@286 | 2 | * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. |
ohair@286 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
ohair@286 | 4 | * |
ohair@286 | 5 | * This code is free software; you can redistribute it and/or modify it |
ohair@286 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@286 | 7 | * published by the Free Software Foundation. Oracle designates this |
ohair@286 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@286 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
ohair@286 | 10 | * |
ohair@286 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
ohair@286 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
ohair@286 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
ohair@286 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
ohair@286 | 15 | * accompanied this code). |
ohair@286 | 16 | * |
ohair@286 | 17 | * You should have received a copy of the GNU General Public License version |
ohair@286 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
ohair@286 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
ohair@286 | 20 | * |
ohair@286 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@286 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@286 | 23 | * questions. |
ohair@286 | 24 | */ |
ohair@286 | 25 | |
ohair@286 | 26 | package com.sun.xml.internal.ws.util; |
ohair@286 | 27 | |
ohair@286 | 28 | import com.sun.istack.internal.NotNull; |
ohair@286 | 29 | import com.sun.istack.internal.Nullable; |
ohair@286 | 30 | |
ohair@286 | 31 | import java.io.File; |
ohair@286 | 32 | import java.io.FileInputStream; |
ohair@286 | 33 | import java.io.FileOutputStream; |
ohair@286 | 34 | import java.io.IOException; |
ohair@286 | 35 | import java.io.InputStream; |
ohair@286 | 36 | |
ohair@286 | 37 | /** |
ohair@286 | 38 | * Reads a input stream completely and creates a new stream |
ohair@286 | 39 | * by keeping some data in memory and the rest on the file system. |
ohair@286 | 40 | * |
ohair@286 | 41 | * @author Jitendra Kotamraju |
ohair@286 | 42 | */ |
ohair@286 | 43 | public class ReadAllStream extends InputStream { |
ohair@286 | 44 | |
ohair@286 | 45 | private final @NotNull MemoryStream memStream; |
ohair@286 | 46 | private final @NotNull FileStream fileStream; |
ohair@286 | 47 | |
ohair@286 | 48 | private boolean readAll; |
ohair@286 | 49 | private boolean closed; |
ohair@286 | 50 | |
ohair@286 | 51 | public ReadAllStream() { |
ohair@286 | 52 | memStream = new MemoryStream(); |
ohair@286 | 53 | fileStream = new FileStream(); |
ohair@286 | 54 | } |
ohair@286 | 55 | |
ohair@286 | 56 | /** |
ohair@286 | 57 | * Reads the data from input stream completely. It keeps |
ohair@286 | 58 | * inMemory size in the memory, and the rest on the file |
ohair@286 | 59 | * system. |
ohair@286 | 60 | * |
ohair@286 | 61 | * Caller's responsibility to close the InputStream. This |
ohair@286 | 62 | * method can be called only once. |
ohair@286 | 63 | * |
ohair@286 | 64 | * @param in from which to be read |
ohair@286 | 65 | * @param inMemory this much data is kept in the memory |
ohair@286 | 66 | * @throws IOException in case of exception |
ohair@286 | 67 | */ |
ohair@286 | 68 | public void readAll(InputStream in, long inMemory) throws IOException { |
ohair@286 | 69 | assert !readAll; |
ohair@286 | 70 | readAll = true; |
ohair@286 | 71 | |
ohair@286 | 72 | boolean eof = memStream.readAll(in, inMemory); |
ohair@286 | 73 | if (!eof) { |
ohair@286 | 74 | fileStream.readAll(in); |
ohair@286 | 75 | } |
ohair@286 | 76 | } |
ohair@286 | 77 | |
ohair@286 | 78 | public int read() throws IOException { |
ohair@286 | 79 | int ch = memStream.read(); |
ohair@286 | 80 | if (ch == -1) { |
ohair@286 | 81 | ch = fileStream.read(); |
ohair@286 | 82 | } |
ohair@286 | 83 | return ch; |
ohair@286 | 84 | } |
ohair@286 | 85 | |
ohair@286 | 86 | @Override |
ohair@286 | 87 | public int read(byte b[], int off, int sz) throws IOException { |
ohair@286 | 88 | int len = memStream.read(b, off, sz); |
ohair@286 | 89 | if (len == -1) { |
ohair@286 | 90 | len = fileStream.read(b, off, sz); |
ohair@286 | 91 | } |
ohair@286 | 92 | return len; |
ohair@286 | 93 | } |
ohair@286 | 94 | |
ohair@286 | 95 | public void close() throws IOException { |
ohair@286 | 96 | if (!closed) { |
ohair@286 | 97 | memStream.close(); |
ohair@286 | 98 | fileStream.close(); |
ohair@286 | 99 | closed = true; |
ohair@286 | 100 | } |
ohair@286 | 101 | } |
ohair@286 | 102 | |
ohair@286 | 103 | // Keeps the rest of the data on the file system |
ohair@286 | 104 | private static class FileStream extends InputStream { |
ohair@286 | 105 | private @Nullable File tempFile; |
ohair@286 | 106 | private @Nullable FileInputStream fin; |
ohair@286 | 107 | |
ohair@286 | 108 | void readAll(InputStream in) throws IOException { |
ohair@286 | 109 | tempFile = File.createTempFile("jaxws",".bin"); |
ohair@286 | 110 | FileOutputStream fileOut = new FileOutputStream(tempFile); |
ohair@286 | 111 | try { |
ohair@286 | 112 | byte[] buf = new byte[8192]; |
ohair@286 | 113 | int len; |
ohair@286 | 114 | while((len=in.read(buf)) != -1) { |
ohair@286 | 115 | fileOut.write(buf, 0, len); |
ohair@286 | 116 | } |
ohair@286 | 117 | } finally { |
ohair@286 | 118 | fileOut.close(); |
ohair@286 | 119 | } |
ohair@286 | 120 | fin = new FileInputStream(tempFile); |
ohair@286 | 121 | } |
ohair@286 | 122 | |
ohair@286 | 123 | public int read() throws IOException { |
ohair@286 | 124 | return (fin != null) ? fin.read() : -1; |
ohair@286 | 125 | } |
ohair@286 | 126 | |
ohair@286 | 127 | @Override |
ohair@286 | 128 | public int read(byte b[], int off, int sz) throws IOException { |
ohair@286 | 129 | return (fin != null) ? fin.read(b, off, sz) : -1; |
ohair@286 | 130 | } |
ohair@286 | 131 | |
ohair@286 | 132 | @Override |
ohair@286 | 133 | public void close() throws IOException { |
ohair@286 | 134 | if (fin != null) { |
ohair@286 | 135 | fin.close(); |
ohair@286 | 136 | } |
ohair@286 | 137 | if (tempFile != null) { |
ohair@286 | 138 | tempFile.delete(); |
ohair@286 | 139 | } |
ohair@286 | 140 | } |
ohair@286 | 141 | } |
ohair@286 | 142 | |
ohair@286 | 143 | // Keeps data in memory until certain size |
ohair@286 | 144 | private static class MemoryStream extends InputStream { |
ohair@286 | 145 | private Chunk head, tail; |
ohair@286 | 146 | private int curOff; |
ohair@286 | 147 | |
ohair@286 | 148 | private void add(byte[] buf, int len) { |
ohair@286 | 149 | if (tail != null) { |
ohair@286 | 150 | tail = tail.createNext(buf, 0, len); |
ohair@286 | 151 | } else { |
ohair@286 | 152 | head = tail = new Chunk(buf, 0, len); |
ohair@286 | 153 | } |
ohair@286 | 154 | } |
ohair@286 | 155 | |
ohair@286 | 156 | /** |
ohair@286 | 157 | * Reads until the size specified |
ohair@286 | 158 | * |
ohair@286 | 159 | * @param in stream from which to be read |
ohair@286 | 160 | * @param inMemory reads until this size |
ohair@286 | 161 | * @return true if eof |
ohair@286 | 162 | * false otherwise |
ohair@286 | 163 | * @throws IOException in case of exception |
ohair@286 | 164 | */ |
ohair@286 | 165 | boolean readAll(InputStream in, long inMemory) throws IOException { |
ohair@286 | 166 | long total = 0; |
ohair@286 | 167 | while(true) { |
ohair@286 | 168 | byte[] buf = new byte[8192]; |
ohair@286 | 169 | int read = fill(in, buf); |
ohair@286 | 170 | total += read; |
ohair@286 | 171 | if (read != 0) |
ohair@286 | 172 | add(buf, read); |
ohair@286 | 173 | if (read != buf.length) |
ohair@286 | 174 | return true; // EOF |
ohair@286 | 175 | if (total > inMemory) |
ohair@286 | 176 | return false; // Reached in-memory size |
ohair@286 | 177 | } |
ohair@286 | 178 | } |
ohair@286 | 179 | |
ohair@286 | 180 | private int fill(InputStream in, byte[] buf) throws IOException { |
ohair@286 | 181 | int read; |
ohair@286 | 182 | int total = 0; |
ohair@286 | 183 | while(total < buf.length && (read=in.read(buf, total, buf.length-total)) != -1) { |
ohair@286 | 184 | total += read; |
ohair@286 | 185 | } |
ohair@286 | 186 | return total; |
ohair@286 | 187 | } |
ohair@286 | 188 | |
ohair@286 | 189 | public int read() throws IOException { |
ohair@286 | 190 | if (!fetch()) { |
ohair@286 | 191 | return -1; |
ohair@286 | 192 | } |
ohair@286 | 193 | return (head.buf[curOff++] & 0xff); |
ohair@286 | 194 | } |
ohair@286 | 195 | |
ohair@286 | 196 | @Override |
ohair@286 | 197 | public int read(byte b[], int off, int sz) throws IOException { |
ohair@286 | 198 | if (!fetch()) { |
ohair@286 | 199 | return -1; |
ohair@286 | 200 | } |
ohair@286 | 201 | sz = Math.min(sz, head.len-(curOff-head.off)); |
ohair@286 | 202 | System.arraycopy(head.buf,curOff,b,off,sz); |
ohair@286 | 203 | curOff += sz; |
ohair@286 | 204 | return sz; |
ohair@286 | 205 | } |
ohair@286 | 206 | |
ohair@286 | 207 | // if eof, return false else true |
ohair@286 | 208 | private boolean fetch() { |
ohair@286 | 209 | if (head == null) { |
ohair@286 | 210 | return false; |
ohair@286 | 211 | } |
ohair@286 | 212 | if (curOff == head.off+head.len) { |
ohair@286 | 213 | head = head.next; |
ohair@286 | 214 | if (head == null) { |
ohair@286 | 215 | return false; |
ohair@286 | 216 | } |
ohair@286 | 217 | curOff = head.off; |
ohair@286 | 218 | } |
ohair@286 | 219 | return true; |
ohair@286 | 220 | } |
ohair@286 | 221 | |
ohair@286 | 222 | private static final class Chunk { |
ohair@286 | 223 | Chunk next; |
ohair@286 | 224 | final byte[] buf; |
ohair@286 | 225 | final int off; |
ohair@286 | 226 | final int len; |
ohair@286 | 227 | |
ohair@286 | 228 | public Chunk(byte[] buf, int off, int len) { |
ohair@286 | 229 | this.buf = buf; |
ohair@286 | 230 | this.off = off; |
ohair@286 | 231 | this.len = len; |
ohair@286 | 232 | } |
ohair@286 | 233 | |
ohair@286 | 234 | public Chunk createNext(byte[] buf, int off, int len) { |
ohair@286 | 235 | return next = new Chunk(buf, off, len); |
ohair@286 | 236 | } |
ohair@286 | 237 | } |
ohair@286 | 238 | } |
ohair@286 | 239 | } |