jaxws/src/java.xml.soap/share/classes/javax/xml/soap/AttachmentPart.java
changeset 28644 a70f5680dbab
parent 28643 a665e19ca007
parent 28642 a42fefc69922
child 28647 f44908f03772
equal deleted inserted replaced
28643:a665e19ca007 28644:a70f5680dbab
     1 /*
       
     2  * Copyright (c) 2004, 2013, 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 javax.xml.soap;
       
    27 
       
    28 import java.io.InputStream;
       
    29 import java.io.Reader;
       
    30 import java.util.Iterator;
       
    31 
       
    32 import javax.activation.DataHandler;
       
    33 
       
    34 /**
       
    35  * A single attachment to a <code>SOAPMessage</code> object. A <code>SOAPMessage</code>
       
    36  * object may contain zero, one, or many <code>AttachmentPart</code> objects.
       
    37  * Each <code>AttachmentPart</code> object consists of two parts,
       
    38  * application-specific content and associated MIME headers. The
       
    39  * MIME headers consists of name/value pairs that can be used to
       
    40  * identify and describe the content.
       
    41  * <p>
       
    42  * An <code>AttachmentPart</code> object must conform to certain standards.
       
    43  * <OL>
       
    44  * <LI>It must conform to <a href="http://www.ietf.org/rfc/rfc2045.txt">
       
    45  *     MIME [RFC2045] standards</a>
       
    46  * <LI>It MUST contain content
       
    47  * <LI>The header portion MUST include the following header:
       
    48  *  <UL>
       
    49  *   <LI><code>Content-Type</code><br>
       
    50  *       This header identifies the type of data in the content of an
       
    51  *       <code>AttachmentPart</code> object and MUST conform to [RFC2045].
       
    52  *       The following is an example of a Content-Type header:
       
    53  *       <PRE>
       
    54  *       Content-Type:  application/xml
       
    55  *       </PRE>
       
    56  *       The following line of code, in which <code>ap</code> is an
       
    57  *       <code>AttachmentPart</code> object, sets the header shown in
       
    58  *       the previous example.
       
    59  *       <PRE>
       
    60  *       ap.setMimeHeader("Content-Type", "application/xml");
       
    61  *       </PRE>
       
    62  * <p>
       
    63  *  </UL>
       
    64  * </OL>
       
    65  * <p>
       
    66  * There are no restrictions on the content portion of an <code>
       
    67  * AttachmentPart</code> object. The content may be anything from a
       
    68  * simple plain text object to a complex XML document or image file.
       
    69  *
       
    70  * <p>
       
    71  * An <code>AttachmentPart</code> object is created with the method
       
    72  * <code>SOAPMessage.createAttachmentPart</code>. After setting its MIME headers,
       
    73  *  the <code>AttachmentPart</code> object is added to the message
       
    74  * that created it with the method <code>SOAPMessage.addAttachmentPart</code>.
       
    75  *
       
    76  * <p>
       
    77  * The following code fragment, in which <code>m</code> is a
       
    78  * <code>SOAPMessage</code> object and <code>contentStringl</code> is a
       
    79  * <code>String</code>, creates an instance of <code>AttachmentPart</code>,
       
    80  * sets the <code>AttachmentPart</code> object with some content and
       
    81  * header information, and adds the <code>AttachmentPart</code> object to
       
    82  * the <code>SOAPMessage</code> object.
       
    83  * <PRE>
       
    84  *     AttachmentPart ap1 = m.createAttachmentPart();
       
    85  *     ap1.setContent(contentString1, "text/plain");
       
    86  *     m.addAttachmentPart(ap1);
       
    87  * </PRE>
       
    88  *
       
    89  *
       
    90  * <p>
       
    91  * The following code fragment creates and adds a second
       
    92  * <code>AttachmentPart</code> instance to the same message. <code>jpegData</code>
       
    93  * is a binary byte buffer representing the jpeg file.
       
    94  * <PRE>
       
    95  *     AttachmentPart ap2 = m.createAttachmentPart();
       
    96  *     byte[] jpegData =  ...;
       
    97  *     ap2.setContent(new ByteArrayInputStream(jpegData), "image/jpeg");
       
    98  *     m.addAttachmentPart(ap2);
       
    99  * </PRE>
       
   100  * <p>
       
   101  * The <code>getContent</code> method retrieves the contents and header from
       
   102  * an <code>AttachmentPart</code> object. Depending on the
       
   103  * <code>DataContentHandler</code> objects present, the returned
       
   104  * <code>Object</code> can either be a typed Java object corresponding
       
   105  * to the MIME type or an <code>InputStream</code> object that contains the
       
   106  * content as bytes.
       
   107  * <PRE>
       
   108  *     String content1 = ap1.getContent();
       
   109  *     java.io.InputStream content2 = ap2.getContent();
       
   110  * </PRE>
       
   111  *
       
   112  * The method <code>clearContent</code> removes all the content from an
       
   113  * <code>AttachmentPart</code> object but does not affect its header information.
       
   114  * <PRE>
       
   115  *     ap1.clearContent();
       
   116  * </PRE>
       
   117  *
       
   118  * @since 1.6
       
   119  */
       
   120 
       
   121 public abstract class AttachmentPart {
       
   122     /**
       
   123      * Returns the number of bytes in this <code>AttachmentPart</code>
       
   124      * object.
       
   125      *
       
   126      * @return the size of this <code>AttachmentPart</code> object in bytes
       
   127      *         or -1 if the size cannot be determined
       
   128      * @exception SOAPException if the content of this attachment is
       
   129      *            corrupted of if there was an exception while trying
       
   130      *            to determine the size.
       
   131      */
       
   132     public abstract int getSize() throws SOAPException;
       
   133 
       
   134     /**
       
   135      * Clears out the content of this <code>AttachmentPart</code> object.
       
   136      * The MIME header portion is left untouched.
       
   137      */
       
   138     public abstract void clearContent();
       
   139 
       
   140     /**
       
   141      * Gets the content of this <code>AttachmentPart</code> object as a Java
       
   142      * object. The type of the returned Java object depends on (1) the
       
   143      * <code>DataContentHandler</code> object that is used to interpret the bytes
       
   144      * and (2) the <code>Content-Type</code> given in the header.
       
   145      * <p>
       
   146      * For the MIME content types "text/plain", "text/html" and "text/xml", the
       
   147      * <code>DataContentHandler</code> object does the conversions to and
       
   148      * from the Java types corresponding to the MIME types.
       
   149      * For other MIME types,the <code>DataContentHandler</code> object
       
   150      * can return an <code>InputStream</code> object that contains the content data
       
   151      * as raw bytes.
       
   152      * <p>
       
   153      * A SAAJ-compliant implementation must, as a minimum, return a
       
   154      * <code>java.lang.String</code> object corresponding to any content
       
   155      * stream with a <code>Content-Type</code> value of
       
   156      * <code>text/plain</code>, a
       
   157      * <code>javax.xml.transform.stream.StreamSource</code> object corresponding to a
       
   158      * content stream with a <code>Content-Type</code> value of
       
   159      * <code>text/xml</code>, a <code>java.awt.Image</code> object
       
   160      * corresponding to a content stream with a
       
   161      * <code>Content-Type</code> value of <code>image/gif</code> or
       
   162      * <code>image/jpeg</code>.  For those content types that an
       
   163      * installed <code>DataContentHandler</code> object does not understand, the
       
   164      * <code>DataContentHandler</code> object is required to return a
       
   165      * <code>java.io.InputStream</code> object with the raw bytes.
       
   166      *
       
   167      * @return a Java object with the content of this <code>AttachmentPart</code>
       
   168      *         object
       
   169      *
       
   170      * @exception SOAPException if there is no content set into this
       
   171      *            <code>AttachmentPart</code> object or if there was a data
       
   172      *            transformation error
       
   173      */
       
   174     public abstract Object getContent() throws SOAPException;
       
   175 
       
   176     /**
       
   177      * Gets the content of this <code>AttachmentPart</code> object as an
       
   178      * InputStream as if a call had been made to <code>getContent</code> and no
       
   179      * <code>DataContentHandler</code> had been registered for the
       
   180      * <code>content-type</code> of this <code>AttachmentPart</code>.
       
   181      *<p>
       
   182      * Note that reading from the returned InputStream would result in consuming
       
   183      * the data in the stream. It is the responsibility of the caller to reset
       
   184      * the InputStream appropriately before calling a Subsequent API. If a copy
       
   185      * of the raw attachment content is required then the {@link #getRawContentBytes} API
       
   186      * should be used instead.
       
   187      *
       
   188      * @return an <code>InputStream</code> from which the raw data contained by
       
   189      *      the <code>AttachmentPart</code> can be accessed.
       
   190      *
       
   191      * @throws SOAPException if there is no content set into this
       
   192      *      <code>AttachmentPart</code> object or if there was a data
       
   193      *      transformation error.
       
   194      *
       
   195      * @since 1.6, SAAJ 1.3
       
   196      * @see #getRawContentBytes
       
   197      */
       
   198     public abstract InputStream getRawContent() throws SOAPException;
       
   199 
       
   200     /**
       
   201      * Gets the content of this <code>AttachmentPart</code> object as a
       
   202      * byte[] array as if a call had been made to <code>getContent</code> and no
       
   203      * <code>DataContentHandler</code> had been registered for the
       
   204      * <code>content-type</code> of this <code>AttachmentPart</code>.
       
   205      *
       
   206      * @return a <code>byte[]</code> array containing the raw data of the
       
   207      *      <code>AttachmentPart</code>.
       
   208      *
       
   209      * @throws SOAPException if there is no content set into this
       
   210      *      <code>AttachmentPart</code> object or if there was a data
       
   211      *      transformation error.
       
   212      *
       
   213      * @since 1.6, SAAJ 1.3
       
   214      */
       
   215     public abstract byte[] getRawContentBytes() throws SOAPException;
       
   216 
       
   217     /**
       
   218      * Returns an <code>InputStream</code> which can be used to obtain the
       
   219      * content of <code>AttachmentPart</code>  as Base64 encoded
       
   220      * character data, this method would base64 encode the raw bytes
       
   221      * of the attachment and return.
       
   222      *
       
   223      * @return an <code>InputStream</code> from which the Base64 encoded
       
   224      *       <code>AttachmentPart</code> can be read.
       
   225      *
       
   226      * @throws SOAPException if there is no content set into this
       
   227      *      <code>AttachmentPart</code> object or if there was a data
       
   228      *      transformation error.
       
   229      *
       
   230      * @since 1.6, SAAJ 1.3
       
   231      */
       
   232     public abstract InputStream getBase64Content() throws SOAPException;
       
   233 
       
   234     /**
       
   235      * Sets the content of this attachment part to that of the given
       
   236      * <code>Object</code> and sets the value of the <code>Content-Type</code>
       
   237      * header to the given type. The type of the
       
   238      * <code>Object</code> should correspond to the value given for the
       
   239      * <code>Content-Type</code>. This depends on the particular
       
   240      * set of <code>DataContentHandler</code> objects in use.
       
   241      *
       
   242      *
       
   243      * @param object the Java object that makes up the content for
       
   244      *               this attachment part
       
   245      * @param contentType the MIME string that specifies the type of
       
   246      *                  the content
       
   247      *
       
   248      * @exception IllegalArgumentException may be thrown if the contentType
       
   249      *            does not match the type of the content object, or if there
       
   250      *            was no <code>DataContentHandler</code> object for this
       
   251      *            content object
       
   252      *
       
   253      * @see #getContent
       
   254      */
       
   255     public abstract void setContent(Object object, String contentType);
       
   256 
       
   257     /**
       
   258      * Sets the content of this attachment part to that contained by the
       
   259      * <code>InputStream</code> <code>content</code> and sets the value of the
       
   260      * <code>Content-Type</code> header to the value contained in
       
   261      * <code>contentType</code>.
       
   262      * <P>
       
   263      *  A subsequent call to getSize() may not be an exact measure
       
   264      *  of the content size.
       
   265      *
       
   266      * @param content the raw data to add to the attachment part
       
   267      * @param contentType the value to set into the <code>Content-Type</code>
       
   268      * header
       
   269      *
       
   270      * @exception SOAPException if an there is an error in setting the content
       
   271      * @exception NullPointerException if <code>content</code> is null
       
   272      * @since 1.6, SAAJ 1.3
       
   273      */
       
   274     public abstract void setRawContent(InputStream content, String contentType) throws SOAPException;
       
   275 
       
   276     /**
       
   277      * Sets the content of this attachment part to that contained by the
       
   278      * <code>byte[]</code> array <code>content</code> and sets the value of the
       
   279      * <code>Content-Type</code> header to the value contained in
       
   280      * <code>contentType</code>.
       
   281      *
       
   282      * @param content the raw data to add to the attachment part
       
   283      * @param contentType the value to set into the <code>Content-Type</code>
       
   284      * header
       
   285      * @param offset the offset in the byte array of the content
       
   286      * @param len the number of bytes that form the content
       
   287      *
       
   288      * @exception SOAPException if an there is an error in setting the content
       
   289      * or content is null
       
   290      * @since 1.6, SAAJ 1.3
       
   291      */
       
   292     public abstract void setRawContentBytes(
       
   293         byte[] content, int offset, int len,  String contentType)
       
   294         throws SOAPException;
       
   295 
       
   296 
       
   297     /**
       
   298      * Sets the content of this attachment part from the Base64 source
       
   299      * <code>InputStream</code>  and sets the value of the
       
   300      * <code>Content-Type</code> header to the value contained in
       
   301      * <code>contentType</code>, This method would first decode the base64
       
   302      * input and write the resulting raw bytes to the attachment.
       
   303      * <P>
       
   304      *  A subsequent call to getSize() may not be an exact measure
       
   305      *  of the content size.
       
   306      *
       
   307      * @param content the base64 encoded data to add to the attachment part
       
   308      * @param contentType the value to set into the <code>Content-Type</code>
       
   309      * header
       
   310      *
       
   311      * @exception SOAPException if an there is an error in setting the content
       
   312      * @exception NullPointerException if <code>content</code> is null
       
   313      *
       
   314      * @since 1.6, SAAJ 1.3
       
   315      */
       
   316     public abstract void setBase64Content(
       
   317         InputStream content, String contentType) throws SOAPException;
       
   318 
       
   319 
       
   320     /**
       
   321      * Gets the <code>DataHandler</code> object for this <code>AttachmentPart</code>
       
   322      * object.
       
   323      *
       
   324      * @return the <code>DataHandler</code> object associated with this
       
   325      *         <code>AttachmentPart</code> object
       
   326      *
       
   327      * @exception SOAPException if there is no data in
       
   328      * this <code>AttachmentPart</code> object
       
   329      */
       
   330     public abstract DataHandler getDataHandler()
       
   331         throws SOAPException;
       
   332 
       
   333     /**
       
   334      * Sets the given <code>DataHandler</code> object as the data handler
       
   335      * for this <code>AttachmentPart</code> object. Typically, on an incoming
       
   336      * message, the data handler is automatically set. When
       
   337      * a message is being created and populated with content, the
       
   338      * <code>setDataHandler</code> method can be used to get data from
       
   339      * various data sources into the message.
       
   340      *
       
   341      * @param dataHandler the <code>DataHandler</code> object to be set
       
   342      *
       
   343      * @exception IllegalArgumentException if there was a problem with
       
   344      *            the specified <code>DataHandler</code> object
       
   345      */
       
   346     public abstract void setDataHandler(DataHandler dataHandler);
       
   347 
       
   348 
       
   349     /**
       
   350      * Gets the value of the MIME header whose name is "Content-ID".
       
   351      *
       
   352      * @return a <code>String</code> giving the value of the
       
   353      *          "Content-ID" header or <code>null</code> if there
       
   354      *          is none
       
   355      * @see #setContentId
       
   356      */
       
   357     public String getContentId() {
       
   358         String[] values = getMimeHeader("Content-ID");
       
   359         if (values != null && values.length > 0)
       
   360             return values[0];
       
   361         return null;
       
   362     }
       
   363 
       
   364     /**
       
   365      * Gets the value of the MIME header whose name is "Content-Location".
       
   366      *
       
   367      * @return a <code>String</code> giving the value of the
       
   368      *          "Content-Location" header or <code>null</code> if there
       
   369      *          is none
       
   370      */
       
   371     public String getContentLocation() {
       
   372         String[] values = getMimeHeader("Content-Location");
       
   373         if (values != null && values.length > 0)
       
   374             return values[0];
       
   375         return null;
       
   376     }
       
   377 
       
   378     /**
       
   379      * Gets the value of the MIME header whose name is "Content-Type".
       
   380      *
       
   381      * @return a <code>String</code> giving the value of the
       
   382      *          "Content-Type" header or <code>null</code> if there
       
   383      *          is none
       
   384      */
       
   385     public String getContentType() {
       
   386         String[] values = getMimeHeader("Content-Type");
       
   387         if (values != null && values.length > 0)
       
   388             return values[0];
       
   389         return null;
       
   390     }
       
   391 
       
   392     /**
       
   393      * Sets the MIME header whose name is "Content-ID" with the given value.
       
   394      *
       
   395      * @param contentId a <code>String</code> giving the value of the
       
   396      *          "Content-ID" header
       
   397      *
       
   398      * @exception IllegalArgumentException if there was a problem with
       
   399      *            the specified <code>contentId</code> value
       
   400      * @see #getContentId
       
   401      */
       
   402     public void setContentId(String contentId)
       
   403     {
       
   404         setMimeHeader("Content-ID", contentId);
       
   405     }
       
   406 
       
   407 
       
   408     /**
       
   409      * Sets the MIME header whose name is "Content-Location" with the given value.
       
   410      *
       
   411      *
       
   412      * @param contentLocation a <code>String</code> giving the value of the
       
   413      *          "Content-Location" header
       
   414      * @exception IllegalArgumentException if there was a problem with
       
   415      *            the specified content location
       
   416      */
       
   417     public void setContentLocation(String contentLocation)
       
   418     {
       
   419         setMimeHeader("Content-Location", contentLocation);
       
   420     }
       
   421 
       
   422     /**
       
   423      * Sets the MIME header whose name is "Content-Type" with the given value.
       
   424      *
       
   425      * @param contentType a <code>String</code> giving the value of the
       
   426      *          "Content-Type" header
       
   427      *
       
   428      * @exception IllegalArgumentException if there was a problem with
       
   429      *            the specified content type
       
   430      */
       
   431     public void setContentType(String contentType)
       
   432     {
       
   433         setMimeHeader("Content-Type", contentType);
       
   434     }
       
   435 
       
   436     /**
       
   437      * Removes all MIME headers that match the given name.
       
   438      *
       
   439      * @param header the string name of the MIME header/s to
       
   440      *               be removed
       
   441      */
       
   442     public abstract void removeMimeHeader(String header);
       
   443 
       
   444     /**
       
   445      * Removes all the MIME header entries.
       
   446      */
       
   447     public abstract void removeAllMimeHeaders();
       
   448 
       
   449 
       
   450     /**
       
   451      * Gets all the values of the header identified by the given
       
   452      * <code>String</code>.
       
   453      *
       
   454      * @param name the name of the header; example: "Content-Type"
       
   455      * @return a <code>String</code> array giving the value for the
       
   456      *         specified header
       
   457      * @see #setMimeHeader
       
   458      */
       
   459     public abstract String[] getMimeHeader(String name);
       
   460 
       
   461 
       
   462     /**
       
   463      * Changes the first header entry that matches the given name
       
   464      * to the given value, adding a new header if no existing header
       
   465      * matches. This method also removes all matching headers but the first. <p>
       
   466      *
       
   467      * Note that RFC822 headers can only contain US-ASCII characters.
       
   468      *
       
   469      * @param   name    a <code>String</code> giving the name of the header
       
   470      *                  for which to search
       
   471      * @param   value   a <code>String</code> giving the value to be set for
       
   472      *                  the header whose name matches the given name
       
   473      *
       
   474      * @exception IllegalArgumentException if there was a problem with
       
   475      *            the specified mime header name or value
       
   476      */
       
   477     public abstract void setMimeHeader(String name, String value);
       
   478 
       
   479 
       
   480     /**
       
   481      * Adds a MIME header with the specified name and value to this
       
   482      * <code>AttachmentPart</code> object.
       
   483      * <p>
       
   484      * Note that RFC822 headers can contain only US-ASCII characters.
       
   485      *
       
   486      * @param   name    a <code>String</code> giving the name of the header
       
   487      *                  to be added
       
   488      * @param   value   a <code>String</code> giving the value of the header
       
   489      *                  to be added
       
   490      *
       
   491      * @exception IllegalArgumentException if there was a problem with
       
   492      *            the specified mime header name or value
       
   493      */
       
   494     public abstract void addMimeHeader(String name, String value);
       
   495 
       
   496     /**
       
   497      * Retrieves all the headers for this <code>AttachmentPart</code> object
       
   498      * as an iterator over the <code>MimeHeader</code> objects.
       
   499      *
       
   500      * @return  an <code>Iterator</code> object with all of the Mime
       
   501      *          headers for this <code>AttachmentPart</code> object
       
   502      */
       
   503     public abstract Iterator getAllMimeHeaders();
       
   504 
       
   505     /**
       
   506      * Retrieves all <code>MimeHeader</code> objects that match a name in
       
   507      * the given array.
       
   508      *
       
   509      * @param names a <code>String</code> array with the name(s) of the
       
   510      *        MIME headers to be returned
       
   511      * @return  all of the MIME headers that match one of the names in the
       
   512      *           given array as an <code>Iterator</code> object
       
   513      */
       
   514     public abstract Iterator getMatchingMimeHeaders(String[] names);
       
   515 
       
   516     /**
       
   517      * Retrieves all <code>MimeHeader</code> objects whose name does
       
   518      * not match a name in the given array.
       
   519      *
       
   520      * @param names a <code>String</code> array with the name(s) of the
       
   521      *        MIME headers not to be returned
       
   522      * @return  all of the MIME headers in this <code>AttachmentPart</code> object
       
   523      *          except those that match one of the names in the
       
   524      *           given array.  The nonmatching MIME headers are returned as an
       
   525      *           <code>Iterator</code> object.
       
   526      */
       
   527     public abstract Iterator getNonMatchingMimeHeaders(String[] names);
       
   528 }