1.1 --- a/emul/compact/src/main/java/java/io/DataOutputStream.java Tue Feb 26 14:55:55 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,416 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 1994, 2004, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package java.io;
1.30 -
1.31 -/**
1.32 - * A data output stream lets an application write primitive Java data
1.33 - * types to an output stream in a portable way. An application can
1.34 - * then use a data input stream to read the data back in.
1.35 - *
1.36 - * @author unascribed
1.37 - * @see java.io.DataInputStream
1.38 - * @since JDK1.0
1.39 - */
1.40 -public
1.41 -class DataOutputStream extends FilterOutputStream implements DataOutput {
1.42 - /**
1.43 - * The number of bytes written to the data output stream so far.
1.44 - * If this counter overflows, it will be wrapped to Integer.MAX_VALUE.
1.45 - */
1.46 - protected int written;
1.47 -
1.48 - /**
1.49 - * bytearr is initialized on demand by writeUTF
1.50 - */
1.51 - private byte[] bytearr = null;
1.52 -
1.53 - /**
1.54 - * Creates a new data output stream to write data to the specified
1.55 - * underlying output stream. The counter <code>written</code> is
1.56 - * set to zero.
1.57 - *
1.58 - * @param out the underlying output stream, to be saved for later
1.59 - * use.
1.60 - * @see java.io.FilterOutputStream#out
1.61 - */
1.62 - public DataOutputStream(OutputStream out) {
1.63 - super(out);
1.64 - }
1.65 -
1.66 - /**
1.67 - * Increases the written counter by the specified value
1.68 - * until it reaches Integer.MAX_VALUE.
1.69 - */
1.70 - private void incCount(int value) {
1.71 - int temp = written + value;
1.72 - if (temp < 0) {
1.73 - temp = Integer.MAX_VALUE;
1.74 - }
1.75 - written = temp;
1.76 - }
1.77 -
1.78 - /**
1.79 - * Writes the specified byte (the low eight bits of the argument
1.80 - * <code>b</code>) to the underlying output stream. If no exception
1.81 - * is thrown, the counter <code>written</code> is incremented by
1.82 - * <code>1</code>.
1.83 - * <p>
1.84 - * Implements the <code>write</code> method of <code>OutputStream</code>.
1.85 - *
1.86 - * @param b the <code>byte</code> to be written.
1.87 - * @exception IOException if an I/O error occurs.
1.88 - * @see java.io.FilterOutputStream#out
1.89 - */
1.90 - public synchronized void write(int b) throws IOException {
1.91 - out.write(b);
1.92 - incCount(1);
1.93 - }
1.94 -
1.95 - /**
1.96 - * Writes <code>len</code> bytes from the specified byte array
1.97 - * starting at offset <code>off</code> to the underlying output stream.
1.98 - * If no exception is thrown, the counter <code>written</code> is
1.99 - * incremented by <code>len</code>.
1.100 - *
1.101 - * @param b the data.
1.102 - * @param off the start offset in the data.
1.103 - * @param len the number of bytes to write.
1.104 - * @exception IOException if an I/O error occurs.
1.105 - * @see java.io.FilterOutputStream#out
1.106 - */
1.107 - public synchronized void write(byte b[], int off, int len)
1.108 - throws IOException
1.109 - {
1.110 - out.write(b, off, len);
1.111 - incCount(len);
1.112 - }
1.113 -
1.114 - /**
1.115 - * Flushes this data output stream. This forces any buffered output
1.116 - * bytes to be written out to the stream.
1.117 - * <p>
1.118 - * The <code>flush</code> method of <code>DataOutputStream</code>
1.119 - * calls the <code>flush</code> method of its underlying output stream.
1.120 - *
1.121 - * @exception IOException if an I/O error occurs.
1.122 - * @see java.io.FilterOutputStream#out
1.123 - * @see java.io.OutputStream#flush()
1.124 - */
1.125 - public void flush() throws IOException {
1.126 - out.flush();
1.127 - }
1.128 -
1.129 - /**
1.130 - * Writes a <code>boolean</code> to the underlying output stream as
1.131 - * a 1-byte value. The value <code>true</code> is written out as the
1.132 - * value <code>(byte)1</code>; the value <code>false</code> is
1.133 - * written out as the value <code>(byte)0</code>. If no exception is
1.134 - * thrown, the counter <code>written</code> is incremented by
1.135 - * <code>1</code>.
1.136 - *
1.137 - * @param v a <code>boolean</code> value to be written.
1.138 - * @exception IOException if an I/O error occurs.
1.139 - * @see java.io.FilterOutputStream#out
1.140 - */
1.141 - public final void writeBoolean(boolean v) throws IOException {
1.142 - out.write(v ? 1 : 0);
1.143 - incCount(1);
1.144 - }
1.145 -
1.146 - /**
1.147 - * Writes out a <code>byte</code> to the underlying output stream as
1.148 - * a 1-byte value. If no exception is thrown, the counter
1.149 - * <code>written</code> is incremented by <code>1</code>.
1.150 - *
1.151 - * @param v a <code>byte</code> value to be written.
1.152 - * @exception IOException if an I/O error occurs.
1.153 - * @see java.io.FilterOutputStream#out
1.154 - */
1.155 - public final void writeByte(int v) throws IOException {
1.156 - out.write(v);
1.157 - incCount(1);
1.158 - }
1.159 -
1.160 - /**
1.161 - * Writes a <code>short</code> to the underlying output stream as two
1.162 - * bytes, high byte first. If no exception is thrown, the counter
1.163 - * <code>written</code> is incremented by <code>2</code>.
1.164 - *
1.165 - * @param v a <code>short</code> to be written.
1.166 - * @exception IOException if an I/O error occurs.
1.167 - * @see java.io.FilterOutputStream#out
1.168 - */
1.169 - public final void writeShort(int v) throws IOException {
1.170 - out.write((v >>> 8) & 0xFF);
1.171 - out.write((v >>> 0) & 0xFF);
1.172 - incCount(2);
1.173 - }
1.174 -
1.175 - /**
1.176 - * Writes a <code>char</code> to the underlying output stream as a
1.177 - * 2-byte value, high byte first. If no exception is thrown, the
1.178 - * counter <code>written</code> is incremented by <code>2</code>.
1.179 - *
1.180 - * @param v a <code>char</code> value to be written.
1.181 - * @exception IOException if an I/O error occurs.
1.182 - * @see java.io.FilterOutputStream#out
1.183 - */
1.184 - public final void writeChar(int v) throws IOException {
1.185 - out.write((v >>> 8) & 0xFF);
1.186 - out.write((v >>> 0) & 0xFF);
1.187 - incCount(2);
1.188 - }
1.189 -
1.190 - /**
1.191 - * Writes an <code>int</code> to the underlying output stream as four
1.192 - * bytes, high byte first. If no exception is thrown, the counter
1.193 - * <code>written</code> is incremented by <code>4</code>.
1.194 - *
1.195 - * @param v an <code>int</code> to be written.
1.196 - * @exception IOException if an I/O error occurs.
1.197 - * @see java.io.FilterOutputStream#out
1.198 - */
1.199 - public final void writeInt(int v) throws IOException {
1.200 - out.write((v >>> 24) & 0xFF);
1.201 - out.write((v >>> 16) & 0xFF);
1.202 - out.write((v >>> 8) & 0xFF);
1.203 - out.write((v >>> 0) & 0xFF);
1.204 - incCount(4);
1.205 - }
1.206 -
1.207 - private byte writeBuffer[] = new byte[8];
1.208 -
1.209 - /**
1.210 - * Writes a <code>long</code> to the underlying output stream as eight
1.211 - * bytes, high byte first. In no exception is thrown, the counter
1.212 - * <code>written</code> is incremented by <code>8</code>.
1.213 - *
1.214 - * @param v a <code>long</code> to be written.
1.215 - * @exception IOException if an I/O error occurs.
1.216 - * @see java.io.FilterOutputStream#out
1.217 - */
1.218 - public final void writeLong(long v) throws IOException {
1.219 - writeBuffer[0] = (byte)(v >>> 56);
1.220 - writeBuffer[1] = (byte)(v >>> 48);
1.221 - writeBuffer[2] = (byte)(v >>> 40);
1.222 - writeBuffer[3] = (byte)(v >>> 32);
1.223 - writeBuffer[4] = (byte)(v >>> 24);
1.224 - writeBuffer[5] = (byte)(v >>> 16);
1.225 - writeBuffer[6] = (byte)(v >>> 8);
1.226 - writeBuffer[7] = (byte)(v >>> 0);
1.227 - out.write(writeBuffer, 0, 8);
1.228 - incCount(8);
1.229 - }
1.230 -
1.231 - /**
1.232 - * Converts the float argument to an <code>int</code> using the
1.233 - * <code>floatToIntBits</code> method in class <code>Float</code>,
1.234 - * and then writes that <code>int</code> value to the underlying
1.235 - * output stream as a 4-byte quantity, high byte first. If no
1.236 - * exception is thrown, the counter <code>written</code> is
1.237 - * incremented by <code>4</code>.
1.238 - *
1.239 - * @param v a <code>float</code> value to be written.
1.240 - * @exception IOException if an I/O error occurs.
1.241 - * @see java.io.FilterOutputStream#out
1.242 - * @see java.lang.Float#floatToIntBits(float)
1.243 - */
1.244 - public final void writeFloat(float v) throws IOException {
1.245 - writeInt(Float.floatToIntBits(v));
1.246 - }
1.247 -
1.248 - /**
1.249 - * Converts the double argument to a <code>long</code> using the
1.250 - * <code>doubleToLongBits</code> method in class <code>Double</code>,
1.251 - * and then writes that <code>long</code> value to the underlying
1.252 - * output stream as an 8-byte quantity, high byte first. If no
1.253 - * exception is thrown, the counter <code>written</code> is
1.254 - * incremented by <code>8</code>.
1.255 - *
1.256 - * @param v a <code>double</code> value to be written.
1.257 - * @exception IOException if an I/O error occurs.
1.258 - * @see java.io.FilterOutputStream#out
1.259 - * @see java.lang.Double#doubleToLongBits(double)
1.260 - */
1.261 - public final void writeDouble(double v) throws IOException {
1.262 - writeLong(Double.doubleToLongBits(v));
1.263 - }
1.264 -
1.265 - /**
1.266 - * Writes out the string to the underlying output stream as a
1.267 - * sequence of bytes. Each character in the string is written out, in
1.268 - * sequence, by discarding its high eight bits. If no exception is
1.269 - * thrown, the counter <code>written</code> is incremented by the
1.270 - * length of <code>s</code>.
1.271 - *
1.272 - * @param s a string of bytes to be written.
1.273 - * @exception IOException if an I/O error occurs.
1.274 - * @see java.io.FilterOutputStream#out
1.275 - */
1.276 - public final void writeBytes(String s) throws IOException {
1.277 - int len = s.length();
1.278 - for (int i = 0 ; i < len ; i++) {
1.279 - out.write((byte)s.charAt(i));
1.280 - }
1.281 - incCount(len);
1.282 - }
1.283 -
1.284 - /**
1.285 - * Writes a string to the underlying output stream as a sequence of
1.286 - * characters. Each character is written to the data output stream as
1.287 - * if by the <code>writeChar</code> method. If no exception is
1.288 - * thrown, the counter <code>written</code> is incremented by twice
1.289 - * the length of <code>s</code>.
1.290 - *
1.291 - * @param s a <code>String</code> value to be written.
1.292 - * @exception IOException if an I/O error occurs.
1.293 - * @see java.io.DataOutputStream#writeChar(int)
1.294 - * @see java.io.FilterOutputStream#out
1.295 - */
1.296 - public final void writeChars(String s) throws IOException {
1.297 - int len = s.length();
1.298 - for (int i = 0 ; i < len ; i++) {
1.299 - int v = s.charAt(i);
1.300 - out.write((v >>> 8) & 0xFF);
1.301 - out.write((v >>> 0) & 0xFF);
1.302 - }
1.303 - incCount(len * 2);
1.304 - }
1.305 -
1.306 - /**
1.307 - * Writes a string to the underlying output stream using
1.308 - * <a href="DataInput.html#modified-utf-8">modified UTF-8</a>
1.309 - * encoding in a machine-independent manner.
1.310 - * <p>
1.311 - * First, two bytes are written to the output stream as if by the
1.312 - * <code>writeShort</code> method giving the number of bytes to
1.313 - * follow. This value is the number of bytes actually written out,
1.314 - * not the length of the string. Following the length, each character
1.315 - * of the string is output, in sequence, using the modified UTF-8 encoding
1.316 - * for the character. If no exception is thrown, the counter
1.317 - * <code>written</code> is incremented by the total number of
1.318 - * bytes written to the output stream. This will be at least two
1.319 - * plus the length of <code>str</code>, and at most two plus
1.320 - * thrice the length of <code>str</code>.
1.321 - *
1.322 - * @param str a string to be written.
1.323 - * @exception IOException if an I/O error occurs.
1.324 - */
1.325 - public final void writeUTF(String str) throws IOException {
1.326 - writeUTF(str, this);
1.327 - }
1.328 -
1.329 - /**
1.330 - * Writes a string to the specified DataOutput using
1.331 - * <a href="DataInput.html#modified-utf-8">modified UTF-8</a>
1.332 - * encoding in a machine-independent manner.
1.333 - * <p>
1.334 - * First, two bytes are written to out as if by the <code>writeShort</code>
1.335 - * method giving the number of bytes to follow. This value is the number of
1.336 - * bytes actually written out, not the length of the string. Following the
1.337 - * length, each character of the string is output, in sequence, using the
1.338 - * modified UTF-8 encoding for the character. If no exception is thrown, the
1.339 - * counter <code>written</code> is incremented by the total number of
1.340 - * bytes written to the output stream. This will be at least two
1.341 - * plus the length of <code>str</code>, and at most two plus
1.342 - * thrice the length of <code>str</code>.
1.343 - *
1.344 - * @param str a string to be written.
1.345 - * @param out destination to write to
1.346 - * @return The number of bytes written out.
1.347 - * @exception IOException if an I/O error occurs.
1.348 - */
1.349 - static int writeUTF(String str, DataOutput out) throws IOException {
1.350 - int strlen = str.length();
1.351 - int utflen = 0;
1.352 - int c, count = 0;
1.353 -
1.354 - /* use charAt instead of copying String to char array */
1.355 - for (int i = 0; i < strlen; i++) {
1.356 - c = str.charAt(i);
1.357 - if ((c >= 0x0001) && (c <= 0x007F)) {
1.358 - utflen++;
1.359 - } else if (c > 0x07FF) {
1.360 - utflen += 3;
1.361 - } else {
1.362 - utflen += 2;
1.363 - }
1.364 - }
1.365 -
1.366 - if (utflen > 65535)
1.367 - throw new UTFDataFormatException(
1.368 - "encoded string too long: " + utflen + " bytes");
1.369 -
1.370 - byte[] bytearr = null;
1.371 - if (out instanceof DataOutputStream) {
1.372 - DataOutputStream dos = (DataOutputStream)out;
1.373 - if(dos.bytearr == null || (dos.bytearr.length < (utflen+2)))
1.374 - dos.bytearr = new byte[(utflen*2) + 2];
1.375 - bytearr = dos.bytearr;
1.376 - } else {
1.377 - bytearr = new byte[utflen+2];
1.378 - }
1.379 -
1.380 - bytearr[count++] = (byte) ((utflen >>> 8) & 0xFF);
1.381 - bytearr[count++] = (byte) ((utflen >>> 0) & 0xFF);
1.382 -
1.383 - int i=0;
1.384 - for (i=0; i<strlen; i++) {
1.385 - c = str.charAt(i);
1.386 - if (!((c >= 0x0001) && (c <= 0x007F))) break;
1.387 - bytearr[count++] = (byte) c;
1.388 - }
1.389 -
1.390 - for (;i < strlen; i++){
1.391 - c = str.charAt(i);
1.392 - if ((c >= 0x0001) && (c <= 0x007F)) {
1.393 - bytearr[count++] = (byte) c;
1.394 -
1.395 - } else if (c > 0x07FF) {
1.396 - bytearr[count++] = (byte) (0xE0 | ((c >> 12) & 0x0F));
1.397 - bytearr[count++] = (byte) (0x80 | ((c >> 6) & 0x3F));
1.398 - bytearr[count++] = (byte) (0x80 | ((c >> 0) & 0x3F));
1.399 - } else {
1.400 - bytearr[count++] = (byte) (0xC0 | ((c >> 6) & 0x1F));
1.401 - bytearr[count++] = (byte) (0x80 | ((c >> 0) & 0x3F));
1.402 - }
1.403 - }
1.404 - out.write(bytearr, 0, utflen+2);
1.405 - return utflen + 2;
1.406 - }
1.407 -
1.408 - /**
1.409 - * Returns the current value of the counter <code>written</code>,
1.410 - * the number of bytes written to this data output stream so far.
1.411 - * If the counter overflows, it will be wrapped to Integer.MAX_VALUE.
1.412 - *
1.413 - * @return the value of the <code>written</code> field.
1.414 - * @see java.io.DataOutputStream#written
1.415 - */
1.416 - public final int size() {
1.417 - return written;
1.418 - }
1.419 -}