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src/share/jaxws_classes/com/sun/xml/internal/ws/encoding/MIMEPartStreamingDataHandler.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/encoding/MIMEPartStreamingDataHandler.java

Thu, 31 Aug 2017 15:18:52 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:18:52 +0800

changeset 637

9c07ef4934dd

parent 368

0989ad8c0860

parent 0

373ffda63c9a

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.xml.internal.ws.encoding;
aoqi@0	27
aoqi@0	28	import com.sun.xml.internal.org.jvnet.mimepull.MIMEPart;
aoqi@0	29
aoqi@0	30	import javax.activation.DataSource;
aoqi@0	31	import java.io.InputStream;
aoqi@0	32	import java.io.IOException;
aoqi@0	33	import java.io.OutputStream;
aoqi@0	34	import java.io.File;
aoqi@0	35
aoqi@0	36	import com.sun.xml.internal.ws.developer.StreamingDataHandler;
aoqi@0	37
aoqi@0	38	/**
aoqi@0	39	* Implementation of {@link StreamingDataHandler} to access MIME
aoqi@0	40	* attachments efficiently. Applications can use the additional methods and decide
aoqi@0	41	* on how to access the attachment data in JAX-WS applications.
aoqi@0	42	*
aoqi@0	43	* <p>
aoqi@0	44	* for e.g.:
aoqi@0	45	*
aoqi@0	46	* DataHandler dh = proxy.getData();
aoqi@0	47	* StreamingDataHandler sdh = (StreamingDataHandler)dh;
aoqi@0	48	* // readOnce() doesn't store attachment on the disk in some cases
aoqi@0	49	* // for e.g when only one huge attachment after soap envelope part in MIME message
aoqi@0	50	* InputStream in = sdh.readOnce();
aoqi@0	51	* ...
aoqi@0	52	* in.close();
aoqi@0	53	* sdh.close();
aoqi@0	54	*
aoqi@0	55	* @author Jitendra Kotamraju
aoqi@0	56	*/
aoqi@0	57	public class MIMEPartStreamingDataHandler extends StreamingDataHandler {
aoqi@0	58	private final StreamingDataSource ds;
aoqi@0	59
aoqi@0	60	public MIMEPartStreamingDataHandler(MIMEPart part) {
aoqi@0	61	super(new StreamingDataSource(part));
aoqi@0	62	ds = (StreamingDataSource)getDataSource();
aoqi@0	63	}
aoqi@0	64
aoqi@0	65	@Override
aoqi@0	66	public InputStream readOnce() throws IOException {
aoqi@0	67	return ds.readOnce();
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	@Override
aoqi@0	71	public void moveTo(File file) throws IOException {
aoqi@0	72	ds.moveTo(file);
aoqi@0	73	}
aoqi@0	74
aoqi@0	75	@Override
aoqi@0	76	public void close() throws IOException {
aoqi@0	77	ds.close();
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	private static final class StreamingDataSource implements DataSource {
aoqi@0	81	private final MIMEPart part;
aoqi@0	82
aoqi@0	83	StreamingDataSource(MIMEPart part) {
aoqi@0	84	this.part = part;
aoqi@0	85	}
aoqi@0	86
aoqi@0	87	@Override
aoqi@0	88	public InputStream getInputStream() throws IOException {
aoqi@0	89	return part.read(); //readOnce() ??
aoqi@0	90	}
aoqi@0	91
aoqi@0	92	InputStream readOnce() throws IOException {
aoqi@0	93	try {
aoqi@0	94	return part.readOnce();
aoqi@0	95	} catch(Exception e) {
aoqi@0	96	throw new MyIOException(e);
aoqi@0	97	}
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	void moveTo(File file) throws IOException {
aoqi@0	101	part.moveTo(file);
aoqi@0	102	}
aoqi@0	103
aoqi@0	104	@Override
aoqi@0	105	public OutputStream getOutputStream() throws IOException {
aoqi@0	106	return null;
aoqi@0	107	}
aoqi@0	108
aoqi@0	109	@Override
aoqi@0	110	public String getContentType() {
aoqi@0	111	return part.getContentType();
aoqi@0	112	}
aoqi@0	113
aoqi@0	114	@Override
aoqi@0	115	public String getName() {
aoqi@0	116	return "";
aoqi@0	117	}
aoqi@0	118
aoqi@0	119	public void close() throws IOException {
aoqi@0	120	part.close();
aoqi@0	121	}
aoqi@0	122	}
aoqi@0	123
aoqi@0	124	private static final class MyIOException extends IOException {
aoqi@0	125	private final Exception linkedException;
aoqi@0	126
aoqi@0	127	MyIOException(Exception linkedException) {
aoqi@0	128	this.linkedException = linkedException;
aoqi@0	129	}
aoqi@0	130
aoqi@0	131	@Override
aoqi@0	132	public Throwable getCause() {
aoqi@0	133	return linkedException;
aoqi@0	134	}
aoqi@0	135	}
aoqi@0	136
aoqi@0	137	}