src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/ByteOutputStream.java

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
parent 286
f50545b5e2f1
child 637
9c07ef4934dd
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

ohair@286 1 /*
alanb@368 2 * Copyright (c) 1997, 2012, 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.messaging.saaj.util;
ohair@286 27
ohair@286 28 import java.io.BufferedOutputStream;
ohair@286 29 import java.io.IOException;
ohair@286 30 import java.io.OutputStream;
ohair@286 31 import java.io.InputStream;
ohair@286 32 import java.io.ByteArrayInputStream;
ohair@286 33
ohair@286 34 /**
ohair@286 35 * Customized {@link BufferedOutputStream}.
ohair@286 36 *
ohair@286 37 * <p>
ohair@286 38 * Compared to {@link BufferedOutputStream},
ohair@286 39 * this class:
ohair@286 40 *
ohair@286 41 * <ol>
ohair@286 42 * <li>doesn't do synchronization
ohair@286 43 * <li>allows access to the raw buffer
ohair@286 44 * <li>almost no parameter check
ohair@286 45 */
ohair@286 46 public final class ByteOutputStream extends OutputStream {
ohair@286 47 /**
ohair@286 48 * The buffer where data is stored.
ohair@286 49 */
ohair@286 50 protected byte[] buf;
ohair@286 51
ohair@286 52 /**
ohair@286 53 * The number of valid bytes in the buffer.
ohair@286 54 */
ohair@286 55 protected int count = 0;
ohair@286 56
ohair@286 57 public ByteOutputStream() {
ohair@286 58 this(1024);
ohair@286 59 }
ohair@286 60
ohair@286 61 public ByteOutputStream(int size) {
ohair@286 62 buf = new byte[size];
ohair@286 63 }
ohair@286 64
ohair@286 65 /**
ohair@286 66 * Copies all the bytes from this input into this buffer.
ohair@286 67 */
ohair@286 68 public void write(InputStream in) throws IOException {
ohair@286 69 if (in instanceof ByteArrayInputStream) {
ohair@286 70 int size = in.available();
ohair@286 71 ensureCapacity(size);
ohair@286 72 count += in.read(buf,count,size);
ohair@286 73 return;
ohair@286 74 }
ohair@286 75 while(true) {
ohair@286 76 int cap = buf.length-count;
ohair@286 77 int sz = in.read(buf,count,cap);
ohair@286 78 if(sz<0) return; // hit EOS
ohair@286 79
ohair@286 80 count += sz;
ohair@286 81 if(cap==sz)
ohair@286 82 // the buffer filled up. double the buffer
ohair@286 83 ensureCapacity(count);
ohair@286 84 }
ohair@286 85 }
ohair@286 86
ohair@286 87 public void write(int b) {
ohair@286 88 ensureCapacity(1);
ohair@286 89 buf[count] = (byte) b;
ohair@286 90 count++;
ohair@286 91 }
ohair@286 92
ohair@286 93 /**
ohair@286 94 * Ensure that the buffer has at least this much space.
ohair@286 95 */
ohair@286 96 private void ensureCapacity(int space) {
ohair@286 97 int newcount = space + count;
ohair@286 98 if (newcount > buf.length) {
ohair@286 99 byte[] newbuf = new byte[Math.max(buf.length << 1, newcount)];
ohair@286 100 System.arraycopy(buf, 0, newbuf, 0, count);
ohair@286 101 buf = newbuf;
ohair@286 102 }
ohair@286 103 }
ohair@286 104
ohair@286 105 public void write(byte[] b, int off, int len) {
ohair@286 106 ensureCapacity(len);
ohair@286 107 System.arraycopy(b, off, buf, count, len);
ohair@286 108 count += len;
ohair@286 109 }
ohair@286 110
ohair@286 111 public void write(byte[] b) {
ohair@286 112 write(b, 0, b.length);
ohair@286 113 }
ohair@286 114
ohair@286 115 /**
ohair@286 116 * Writes a string as ASCII string.
ohair@286 117 */
ohair@286 118 public void writeAsAscii(String s) {
ohair@286 119 int len = s.length();
ohair@286 120
ohair@286 121 ensureCapacity(len);
ohair@286 122
ohair@286 123 int ptr = count;
ohair@286 124 for( int i=0; i<len; i++ )
ohair@286 125 buf[ptr++] = (byte)s.charAt(i);
ohair@286 126 count = ptr;
ohair@286 127 }
ohair@286 128
ohair@286 129 public void writeTo(OutputStream out) throws IOException {
ohair@286 130 out.write(buf, 0, count);
ohair@286 131 }
ohair@286 132
ohair@286 133 public void reset() {
ohair@286 134 count = 0;
ohair@286 135 }
ohair@286 136
ohair@286 137 /**
ohair@286 138 * Evil buffer reallocation method.
ohair@286 139 * Don't use it unless you absolutely have to.
ohair@286 140 *
ohair@286 141 * @deprecated
ohair@286 142 * because this is evil!
ohair@286 143 */
ohair@286 144 public byte toByteArray()[] {
ohair@286 145 byte[] newbuf = new byte[count];
ohair@286 146 System.arraycopy(buf, 0, newbuf, 0, count);
ohair@286 147 return newbuf;
ohair@286 148 }
ohair@286 149
ohair@286 150 public int size() {
ohair@286 151 return count;
ohair@286 152 }
ohair@286 153
ohair@286 154 public ByteInputStream newInputStream() {
ohair@286 155 return new ByteInputStream(buf,count);
ohair@286 156 }
ohair@286 157
ohair@286 158 /**
ohair@286 159 * Converts the buffer's contents into a string, translating bytes into
ohair@286 160 * characters according to the platform's default character encoding.
ohair@286 161 *
ohair@286 162 * @return String translated from the buffer's contents.
ohair@286 163 * @since JDK1.1
ohair@286 164 */
ohair@286 165 public String toString() {
ohair@286 166 return new String(buf, 0, count);
ohair@286 167 }
ohair@286 168
ohair@286 169 public void close() {
ohair@286 170 }
ohair@286 171
ohair@286 172 public byte[] getBytes() {
ohair@286 173 return buf;
ohair@286 174 }
ohair@286 175
ohair@286 176
ohair@286 177 public int getCount() {
ohair@286 178 return count;
ohair@286 179 }
ohair@286 180 }

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