Mercurial > hg > release > icedtea7-forest-2.1 > jaxws
view sources/jaxws_src/src/com/sun/xml/internal/org/jvnet/mimepull/ChunkInputStream.java @ 282:78c175236707
Update to jdk7-jaxws-2009_09_28.zip
author | andrew |
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date | Thu, 22 Sep 2011 02:57:13 +0100 |
parents | |
children | 2a5e9984bdb8 |
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/* * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Sun designates this * particular file as subject to the "Classpath" exception as provided * by Sun in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. */ package com.sun.xml.internal.org.jvnet.mimepull; import java.io.InputStream; import java.io.IOException; /** * Constructs a InputStream from a linked list of {@link Chunk}s. * * @author Kohsuke Kawaguchi * @author Jitendra Kotamraju */ final class ChunkInputStream extends InputStream { Chunk current; int offset; int len; final MIMEMessage msg; final MIMEPart part; byte[] buf; public ChunkInputStream(MIMEMessage msg, MIMEPart part, Chunk startPos) { this.current = startPos; len = current.data.size(); buf = current.data.read(); this.msg = msg; this.part = part; } @Override public int read(byte b[], int off, int sz) throws IOException { if(!fetch()) return -1; sz = Math.min(sz, len-offset); System.arraycopy(buf,offset,b,off,sz); return sz; } public int read() throws IOException { if(!fetch()) return -1; return (buf[offset++] & 0xff); } /** * Gets to the next chunk if we are done with the current one. * @return */ private boolean fetch() { if (current == null) { throw new IllegalStateException("Stream already closed"); } while(offset==len) { while(!part.parsed && current.next == null) { msg.makeProgress(); } current = current.next; if (current == null) { return false; } this.offset = 0; this.buf = current.data.read(); this.len = current.data.size(); } return true; } public void close() throws IOException { super.close(); current = null; } }