001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.xml.ws.transport.tcp.io;
038:
039: import java.io.InputStream;
040: import java.nio.ByteBuffer;
041:
042: /**
043: * Stream wrapper around a <code>ByteBuffer</code>
044: */
045: public class ByteBufferInputStream extends InputStream {
046:
047: /**
048: * The wrapped <code>ByteBuffer</code<
049: */
050: private ByteBuffer byteBuffer;
051:
052: // ------------------------------------------------- Constructor -------//
053:
054: public ByteBufferInputStream(final ByteBuffer byteBuffer) {
055: this .byteBuffer = byteBuffer;
056: }
057:
058: /**
059: * Set the wrapped <code>ByteBuffer</code>
060: * @param byteBuffer The wrapped byteBuffer
061: */
062: public void setByteBuffer(final ByteBuffer byteBuffer) {
063: this .byteBuffer = byteBuffer;
064: }
065:
066: /**
067: * Return the available bytes
068: * @return the wrapped byteBuffer.remaining()
069: */
070: public int available() {
071: return byteBuffer.remaining();
072: }
073:
074: /**
075: * Close this stream.
076: */
077: public void close() {
078: }
079:
080: /**
081: * Return true if mark is supported.
082: */
083: public boolean markSupported() {
084: return false;
085: }
086:
087: /**
088: * Read the first byte from the wrapped <code>ByteBuffer</code>.
089: */
090: public int read() {
091: if (!byteBuffer.hasRemaining()) {
092: return -1;
093: }
094:
095: return (byteBuffer.get() & 0xff);
096: }
097:
098: /**
099: * Read the bytes from the wrapped <code>ByteBuffer</code>.
100: */
101: public int read(final byte[] b) {
102: return (read(b, 0, b.length));
103: }
104:
105: /**
106: * Read the first byte of the wrapped <code>ByteBuffer</code>.
107: */
108: public int read(final byte[] b, final int offset, int length) {
109: if (!byteBuffer.hasRemaining()) {
110: return -1;
111: }
112:
113: if (length > available()) {
114: length = available();
115: }
116:
117: byteBuffer.get(b, offset, length);
118:
119: return length;
120: }
121:
122: }
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