jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MIMEPart.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MIMEPart.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MIMEPart.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

 /*
  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.org.jvnet.mimepull;
 import java.io.File;
 import java.io.InputStream;
 import java.nio.ByteBuffer;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 /**
  * Represents an attachment part in a MIME message. MIME message parsing is done
  * lazily using a pull parser, so the part may not have all the data. {@link #read}
  * and {@link #readOnce} may trigger the actual parsing the message. In fact,
  * parsing of an attachment part may be triggered by calling {@link #read} methods
  * on some other attachment parts. All this happens behind the scenes so the
  * application developer need not worry about these details.
  *
  * @author Jitendra Kotamraju, Martin Grebac
  */
 public class MIMEPart {
     private static final Logger LOGGER = Logger.getLogger(MIMEPart.class.getName());
     private volatile InternetHeaders headers;
     private volatile String contentId;
     private String contentType;
     private String contentTransferEncoding;
     volatile boolean parsed;    // part is parsed or not
     final MIMEMessage msg;
     private final DataHead dataHead;
     MIMEPart(MIMEMessage msg) {
         this.msg = msg;
         this.dataHead = new DataHead(this);
     }
     MIMEPart(MIMEMessage msg, String contentId) {
         this(msg);
         this.contentId = contentId;
     }
     /**
      * Can get the attachment part's content multiple times. That means
      * the full content needs to be there in memory or on the file system.
      * Calling this method would trigger parsing for the part's data. So
      * do not call this unless it is required(otherwise, just wrap MIMEPart
      * into a object that returns InputStream for e.g DataHandler)
      *
      * @return data for the part's content
      */
     public InputStream read() {
         InputStream is = null;
         try {
             is = MimeUtility.decode(dataHead.read(), contentTransferEncoding);
         } catch (DecodingException ex) { //ignore
             if (LOGGER.isLoggable(Level.WARNING)) {
                 LOGGER.log(Level.WARNING, null, ex);
             }
         }
         return is;
     }
     /**
      * Cleans up any resources that are held by this part (for e.g. deletes
      * the temp file that is used to serve this part's content). After
      * calling this, one shouldn't call {@link #read()} or {@link #readOnce()}
      */
     public void close() {
         dataHead.close();
     }
     /**
      * Can get the attachment part's content only once. The content
      * will be lost after the method. Content data is not be stored
      * on the file system or is not kept in the memory for the
      * following case:
      *   - Attachement parts contents are accessed sequentially
      *
      * In general, take advantage of this when the data is used only
      * once.
      *
      * @return data for the part's content
      */
     public InputStream readOnce() {
         InputStream is = null;
         try {
             is = MimeUtility.decode(dataHead.readOnce(), contentTransferEncoding);
         } catch (DecodingException ex) { //ignore
             if (LOGGER.isLoggable(Level.WARNING)) {
                 LOGGER.log(Level.WARNING, null, ex);
             }
         }
         return is;
     }
     public void moveTo(File f) {
         dataHead.moveTo(f);
     }
     /**
      * Returns Content-ID MIME header for this attachment part
      *
      * @return Content-ID of the part
      */
     public String getContentId() {
         if (contentId == null) {
             getHeaders();
         }
         return contentId;
     }
     /**
      * Returns Content-Transfer-Encoding MIME header for this attachment part
      *
      * @return Content-Transfer-Encoding of the part
      */
     public String getContentTransferEncoding() {
         if (contentTransferEncoding == null) {
             getHeaders();
         }
         return contentTransferEncoding;
     }
     /**
      * Returns Content-Type MIME header for this attachment part
      *
      * @return Content-Type of the part
      */
     public String getContentType() {
         if (contentType == null) {
             getHeaders();
         }
         return contentType;
     }
     private void getHeaders() {
         // Trigger parsing for the part headers
         while(headers == null) {
             if (!msg.makeProgress()) {
                 if (headers == null) {
                     throw new IllegalStateException("Internal Error. Didn't get Headers even after complete parsing.");
                 }
             }
         }
     }
     /**
      * Return all the values for the specified header.
      * Returns <code>null</code> if no headers with the
      * specified name exist.
      *
      * @param   name header name
      * @return  list of header values, or null if none
      */
     public List<String> getHeader(String name) {
         getHeaders();
         assert headers != null;
         return headers.getHeader(name);
     }
     /**
      * Return all the headers
      *
      * @return list of Header objects
      */
     public List<? extends Header> getAllHeaders() {
         getHeaders();
         assert headers != null;
         return headers.getAllHeaders();
     }
     /**
      * Callback to set headers
      *
      * @param headers MIME headers for the part
      */
     void setHeaders(InternetHeaders headers) {
         this.headers = headers;
         List<String> ct = getHeader("Content-Type");
         this.contentType = (ct == null) ? "application/octet-stream" : ct.get(0);
         List<String> cte = getHeader("Content-Transfer-Encoding");
         this.contentTransferEncoding = (cte == null) ? "binary" : cte.get(0);
     }
     /**
      * Callback to notify that there is a partial content for the part
      *
      * @param buf content data for the part
      */
     void addBody(ByteBuffer buf) {
         dataHead.addBody(buf);
     }
     /**
      * Callback to indicate that parsing is done for this part
      * (no more update events for this part)
      */
     void doneParsing() {
         parsed = true;
         dataHead.doneParsing();
     }
     /**
      * Callback to set Content-ID for this part
      * @param cid Content-ID of the part
      */
     void setContentId(String cid) {
         this.contentId = cid;
     }
     /**
      * Callback to set Content-Transfer-Encoding for this part
      * @param cte Content-Transfer-Encoding of the part
      */
     void setContentTransferEncoding(String cte) {
         this.contentTransferEncoding = cte;
     }
     @Override
     public String toString() {
         return "Part="+contentId+":"+contentTransferEncoding;
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MIMEPart.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MIMEPart.java