Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/ByteOutputStream.java
src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/ByteOutputStream.java
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- f50545b5e2f1
- child 368
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| 1 /* | |
| 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.xml.internal.messaging.saaj.util; | |
| 27 | |
| 28 import java.io.BufferedOutputStream; | |
| 29 import java.io.IOException; | |
| 30 import java.io.OutputStream; | |
| 31 import java.io.InputStream; | |
| 32 import java.io.ByteArrayInputStream; | |
| 33 | |
| 34 /** | |
| 35 * Customized {@link BufferedOutputStream}. | |
| 36 * | |
| 37 * <p> | |
| 38 * Compared to {@link BufferedOutputStream}, | |
| 39 * this class: | |
| 40 * | |
| 41 * <ol> | |
| 42 * <li>doesn't do synchronization | |
| 43 * <li>allows access to the raw buffer | |
| 44 * <li>almost no parameter check | |
| 45 */ | |
| 46 public final class ByteOutputStream extends OutputStream { | |
| 47 /** | |
| 48 * The buffer where data is stored. | |
| 49 */ | |
| 50 protected byte[] buf; | |
| 51 | |
| 52 /** | |
| 53 * The number of valid bytes in the buffer. | |
| 54 */ | |
| 55 protected int count = 0; | |
| 56 | |
| 57 public ByteOutputStream() { | |
| 58 this(1024); | |
| 59 } | |
| 60 | |
| 61 public ByteOutputStream(int size) { | |
| 62 buf = new byte[size]; | |
| 63 } | |
| 64 | |
| 65 /** | |
| 66 * Copies all the bytes from this input into this buffer. | |
| 67 */ | |
| 68 public void write(InputStream in) throws IOException { | |
| 69 if (in instanceof ByteArrayInputStream) { | |
| 70 int size = in.available(); | |
| 71 ensureCapacity(size); | |
| 72 count += in.read(buf,count,size); | |
| 73 return; | |
| 74 } | |
| 75 while(true) { | |
| 76 int cap = buf.length-count; | |
| 77 int sz = in.read(buf,count,cap); | |
| 78 if(sz<0) return; // hit EOS | |
| 79 | |
| 80 count += sz; | |
| 81 if(cap==sz) | |
| 82 // the buffer filled up. double the buffer | |
| 83 ensureCapacity(count); | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 public void write(int b) { | |
| 88 ensureCapacity(1); | |
| 89 buf[count] = (byte) b; | |
| 90 count++; | |
| 91 } | |
| 92 | |
| 93 /** | |
| 94 * Ensure that the buffer has at least this much space. | |
| 95 */ | |
| 96 private void ensureCapacity(int space) { | |
| 97 int newcount = space + count; | |
| 98 if (newcount > buf.length) { | |
| 99 byte[] newbuf = new byte[Math.max(buf.length << 1, newcount)]; | |
| 100 System.arraycopy(buf, 0, newbuf, 0, count); | |
| 101 buf = newbuf; | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 public void write(byte[] b, int off, int len) { | |
| 106 ensureCapacity(len); | |
| 107 System.arraycopy(b, off, buf, count, len); | |
| 108 count += len; | |
| 109 } | |
| 110 | |
| 111 public void write(byte[] b) { | |
| 112 write(b, 0, b.length); | |
| 113 } | |
| 114 | |
| 115 /** | |
| 116 * Writes a string as ASCII string. | |
| 117 */ | |
| 118 public void writeAsAscii(String s) { | |
| 119 int len = s.length(); | |
| 120 | |
| 121 ensureCapacity(len); | |
| 122 | |
| 123 int ptr = count; | |
| 124 for( int i=0; i<len; i++ ) | |
| 125 buf[ptr++] = (byte)s.charAt(i); | |
| 126 count = ptr; | |
| 127 } | |
| 128 | |
| 129 public void writeTo(OutputStream out) throws IOException { | |
| 130 out.write(buf, 0, count); | |
| 131 } | |
| 132 | |
| 133 public void reset() { | |
| 134 count = 0; | |
| 135 } | |
| 136 | |
| 137 /** | |
| 138 * Evil buffer reallocation method. | |
| 139 * Don't use it unless you absolutely have to. | |
| 140 * | |
| 141 * @deprecated | |
| 142 * because this is evil! | |
| 143 */ | |
| 144 public byte toByteArray()[] { | |
| 145 byte[] newbuf = new byte[count]; | |
| 146 System.arraycopy(buf, 0, newbuf, 0, count); | |
| 147 return newbuf; | |
| 148 } | |
| 149 | |
| 150 public int size() { | |
| 151 return count; | |
| 152 } | |
| 153 | |
| 154 public ByteInputStream newInputStream() { | |
| 155 return new ByteInputStream(buf,count); | |
| 156 } | |
| 157 | |
| 158 /** | |
| 159 * Converts the buffer's contents into a string, translating bytes into | |
| 160 * characters according to the platform's default character encoding. | |
| 161 * | |
| 162 * @return String translated from the buffer's contents. | |
| 163 * @since JDK1.1 | |
| 164 */ | |
| 165 public String toString() { | |
| 166 return new String(buf, 0, count); | |
| 167 } | |
| 168 | |
| 169 public void close() { | |
| 170 } | |
| 171 | |
| 172 public byte[] getBytes() { | |
| 173 return buf; | |
| 174 } | |
| 175 | |
| 176 | |
| 177 public int getCount() { | |
| 178 return count; | |
| 179 } | |
| 180 } |
