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527 lines
20 KiB
527 lines
20 KiB
/*
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* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.xml.soap;
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import java.io.InputStream;
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import java.io.Reader;
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import java.util.Iterator;
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import javax.activation.DataHandler;
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/**
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* A single attachment to a <code>SOAPMessage</code> object. A <code>SOAPMessage</code>
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* object may contain zero, one, or many <code>AttachmentPart</code> objects.
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* Each <code>AttachmentPart</code> object consists of two parts,
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* application-specific content and associated MIME headers. The
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* MIME headers consists of name/value pairs that can be used to
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* identify and describe the content.
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* <p>
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* An <code>AttachmentPart</code> object must conform to certain standards.
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* <OL>
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* <LI>It must conform to <a href="http://www.ietf.org/rfc/rfc2045.txt">
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* MIME [RFC2045] standards</a>
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* <LI>It MUST contain content
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* <LI>The header portion MUST include the following header:
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* <UL>
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* <LI><code>Content-Type</code><br>
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* This header identifies the type of data in the content of an
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* <code>AttachmentPart</code> object and MUST conform to [RFC2045].
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* The following is an example of a Content-Type header:
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* <PRE>
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* Content-Type: application/xml
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* </PRE>
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* The following line of code, in which <code>ap</code> is an
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* <code>AttachmentPart</code> object, sets the header shown in
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* the previous example.
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* <PRE>
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* ap.setMimeHeader("Content-Type", "application/xml");
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* </PRE>
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* <p>
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* </UL>
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* </OL>
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* <p>
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* There are no restrictions on the content portion of an <code>
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* AttachmentPart</code> object. The content may be anything from a
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* simple plain text object to a complex XML document or image file.
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*
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* <p>
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* An <code>AttachmentPart</code> object is created with the method
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* <code>SOAPMessage.createAttachmentPart</code>. After setting its MIME headers,
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* the <code>AttachmentPart</code> object is added to the message
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* that created it with the method <code>SOAPMessage.addAttachmentPart</code>.
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*
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* <p>
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* The following code fragment, in which <code>m</code> is a
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* <code>SOAPMessage</code> object and <code>contentStringl</code> is a
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* <code>String</code>, creates an instance of <code>AttachmentPart</code>,
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* sets the <code>AttachmentPart</code> object with some content and
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* header information, and adds the <code>AttachmentPart</code> object to
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* the <code>SOAPMessage</code> object.
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* <PRE>
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* AttachmentPart ap1 = m.createAttachmentPart();
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* ap1.setContent(contentString1, "text/plain");
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* m.addAttachmentPart(ap1);
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* </PRE>
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*
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*
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* <p>
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* The following code fragment creates and adds a second
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* <code>AttachmentPart</code> instance to the same message. <code>jpegData</code>
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* is a binary byte buffer representing the jpeg file.
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* <PRE>
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* AttachmentPart ap2 = m.createAttachmentPart();
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* byte[] jpegData = ...;
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* ap2.setContent(new ByteArrayInputStream(jpegData), "image/jpeg");
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* m.addAttachmentPart(ap2);
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* </PRE>
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* <p>
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* The <code>getContent</code> method retrieves the contents and header from
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* an <code>AttachmentPart</code> object. Depending on the
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* <code>DataContentHandler</code> objects present, the returned
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* <code>Object</code> can either be a typed Java object corresponding
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* to the MIME type or an <code>InputStream</code> object that contains the
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* content as bytes.
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* <PRE>
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* String content1 = ap1.getContent();
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* java.io.InputStream content2 = ap2.getContent();
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* </PRE>
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*
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* The method <code>clearContent</code> removes all the content from an
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* <code>AttachmentPart</code> object but does not affect its header information.
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* <PRE>
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* ap1.clearContent();
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* </PRE>
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*/
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public abstract class AttachmentPart {
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/**
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* Returns the number of bytes in this <code>AttachmentPart</code>
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* object.
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*
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* @return the size of this <code>AttachmentPart</code> object in bytes
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* or -1 if the size cannot be determined
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* @exception SOAPException if the content of this attachment is
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* corrupted of if there was an exception while trying
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* to determine the size.
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*/
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public abstract int getSize() throws SOAPException;
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/**
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* Clears out the content of this <code>AttachmentPart</code> object.
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* The MIME header portion is left untouched.
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*/
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public abstract void clearContent();
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/**
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* Gets the content of this <code>AttachmentPart</code> object as a Java
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* object. The type of the returned Java object depends on (1) the
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* <code>DataContentHandler</code> object that is used to interpret the bytes
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* and (2) the <code>Content-Type</code> given in the header.
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* <p>
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* For the MIME content types "text/plain", "text/html" and "text/xml", the
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* <code>DataContentHandler</code> object does the conversions to and
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* from the Java types corresponding to the MIME types.
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* For other MIME types,the <code>DataContentHandler</code> object
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* can return an <code>InputStream</code> object that contains the content data
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* as raw bytes.
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* <p>
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* A SAAJ-compliant implementation must, as a minimum, return a
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* <code>java.lang.String</code> object corresponding to any content
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* stream with a <code>Content-Type</code> value of
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* <code>text/plain</code>, a
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* <code>javax.xml.transform.stream.StreamSource</code> object corresponding to a
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* content stream with a <code>Content-Type</code> value of
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* <code>text/xml</code>, a <code>java.awt.Image</code> object
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* corresponding to a content stream with a
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* <code>Content-Type</code> value of <code>image/gif</code> or
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* <code>image/jpeg</code>. For those content types that an
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* installed <code>DataContentHandler</code> object does not understand, the
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* <code>DataContentHandler</code> object is required to return a
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* <code>java.io.InputStream</code> object with the raw bytes.
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*
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* @return a Java object with the content of this <code>AttachmentPart</code>
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* object
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*
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* @exception SOAPException if there is no content set into this
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* <code>AttachmentPart</code> object or if there was a data
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* transformation error
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*/
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public abstract Object getContent() throws SOAPException;
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/**
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* Gets the content of this <code>AttachmentPart</code> object as an
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* InputStream as if a call had been made to <code>getContent</code> and no
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* <code>DataContentHandler</code> had been registered for the
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* <code>content-type</code> of this <code>AttachmentPart</code>.
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*<p>
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* Note that reading from the returned InputStream would result in consuming
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* the data in the stream. It is the responsibility of the caller to reset
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* the InputStream appropriately before calling a Subsequent API. If a copy
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* of the raw attachment content is required then the {@link #getRawContentBytes} API
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* should be used instead.
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*
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* @return an <code>InputStream</code> from which the raw data contained by
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* the <code>AttachmentPart</code> can be accessed.
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*
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* @throws SOAPException if there is no content set into this
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* <code>AttachmentPart</code> object or if there was a data
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* transformation error.
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*
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* @since SAAJ 1.3
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* @see #getRawContentBytes
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*/
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public abstract InputStream getRawContent() throws SOAPException;
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/**
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* Gets the content of this <code>AttachmentPart</code> object as a
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* byte[] array as if a call had been made to <code>getContent</code> and no
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* <code>DataContentHandler</code> had been registered for the
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* <code>content-type</code> of this <code>AttachmentPart</code>.
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*
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* @return a <code>byte[]</code> array containing the raw data of the
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* <code>AttachmentPart</code>.
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*
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* @throws SOAPException if there is no content set into this
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* <code>AttachmentPart</code> object or if there was a data
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* transformation error.
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*
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* @since SAAJ 1.3
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*/
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public abstract byte[] getRawContentBytes() throws SOAPException;
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/**
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* Returns an <code>InputStream</code> which can be used to obtain the
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* content of <code>AttachmentPart</code> as Base64 encoded
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* character data, this method would base64 encode the raw bytes
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* of the attachment and return.
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*
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* @return an <code>InputStream</code> from which the Base64 encoded
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* <code>AttachmentPart</code> can be read.
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*
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* @throws SOAPException if there is no content set into this
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* <code>AttachmentPart</code> object or if there was a data
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* transformation error.
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*
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* @since SAAJ 1.3
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*/
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public abstract InputStream getBase64Content() throws SOAPException;
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/**
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* Sets the content of this attachment part to that of the given
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* <code>Object</code> and sets the value of the <code>Content-Type</code>
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* header to the given type. The type of the
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* <code>Object</code> should correspond to the value given for the
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* <code>Content-Type</code>. This depends on the particular
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* set of <code>DataContentHandler</code> objects in use.
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*
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*
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* @param object the Java object that makes up the content for
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* this attachment part
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* @param contentType the MIME string that specifies the type of
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* the content
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*
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* @exception IllegalArgumentException may be thrown if the contentType
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* does not match the type of the content object, or if there
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* was no <code>DataContentHandler</code> object for this
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* content object
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*
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* @see #getContent
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*/
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public abstract void setContent(Object object, String contentType);
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/**
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* Sets the content of this attachment part to that contained by the
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* <code>InputStream</code> <code>content</code> and sets the value of the
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* <code>Content-Type</code> header to the value contained in
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* <code>contentType</code>.
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* <P>
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* A subsequent call to getSize() may not be an exact measure
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* of the content size.
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*
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* @param content the raw data to add to the attachment part
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* @param contentType the value to set into the <code>Content-Type</code>
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* header
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*
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* @exception SOAPException if an there is an error in setting the content
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* @exception NullPointerException if <code>content</code> is null
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* @since SAAJ 1.3
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*/
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public abstract void setRawContent(InputStream content, String contentType) throws SOAPException;
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/**
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* Sets the content of this attachment part to that contained by the
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* <code>byte[]</code> array <code>content</code> and sets the value of the
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* <code>Content-Type</code> header to the value contained in
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* <code>contentType</code>.
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*
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* @param content the raw data to add to the attachment part
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* @param contentType the value to set into the <code>Content-Type</code>
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* header
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* @param offset the offset in the byte array of the content
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* @param len the number of bytes that form the content
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*
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* @exception SOAPException if an there is an error in setting the content
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* or content is null
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* @since SAAJ 1.3
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*/
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public abstract void setRawContentBytes(
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byte[] content, int offset, int len, String contentType)
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throws SOAPException;
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/**
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* Sets the content of this attachment part from the Base64 source
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* <code>InputStream</code> and sets the value of the
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* <code>Content-Type</code> header to the value contained in
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* <code>contentType</code>, This method would first decode the base64
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* input and write the resulting raw bytes to the attachment.
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* <P>
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* A subsequent call to getSize() may not be an exact measure
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* of the content size.
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*
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* @param content the base64 encoded data to add to the attachment part
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* @param contentType the value to set into the <code>Content-Type</code>
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* header
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*
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* @exception SOAPException if an there is an error in setting the content
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* @exception NullPointerException if <code>content</code> is null
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*
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* @since SAAJ 1.3
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*/
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public abstract void setBase64Content(
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InputStream content, String contentType) throws SOAPException;
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/**
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* Gets the <code>DataHandler</code> object for this <code>AttachmentPart</code>
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* object.
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*
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* @return the <code>DataHandler</code> object associated with this
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* <code>AttachmentPart</code> object
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*
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* @exception SOAPException if there is no data in
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* this <code>AttachmentPart</code> object
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*/
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public abstract DataHandler getDataHandler()
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throws SOAPException;
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/**
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* Sets the given <code>DataHandler</code> object as the data handler
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* for this <code>AttachmentPart</code> object. Typically, on an incoming
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* message, the data handler is automatically set. When
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* a message is being created and populated with content, the
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* <code>setDataHandler</code> method can be used to get data from
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* various data sources into the message.
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*
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* @param dataHandler the <code>DataHandler</code> object to be set
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*
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* @exception IllegalArgumentException if there was a problem with
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* the specified <code>DataHandler</code> object
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*/
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public abstract void setDataHandler(DataHandler dataHandler);
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/**
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* Gets the value of the MIME header whose name is "Content-ID".
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*
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* @return a <code>String</code> giving the value of the
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* "Content-ID" header or <code>null</code> if there
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* is none
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* @see #setContentId
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*/
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public String getContentId() {
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String[] values = getMimeHeader("Content-ID");
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if (values != null && values.length > 0)
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return values[0];
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return null;
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}
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/**
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* Gets the value of the MIME header whose name is "Content-Location".
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*
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* @return a <code>String</code> giving the value of the
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* "Content-Location" header or <code>null</code> if there
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* is none
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*/
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public String getContentLocation() {
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String[] values = getMimeHeader("Content-Location");
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if (values != null && values.length > 0)
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return values[0];
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return null;
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}
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/**
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* Gets the value of the MIME header whose name is "Content-Type".
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*
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* @return a <code>String</code> giving the value of the
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* "Content-Type" header or <code>null</code> if there
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* is none
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*/
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public String getContentType() {
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String[] values = getMimeHeader("Content-Type");
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if (values != null && values.length > 0)
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return values[0];
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return null;
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}
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/**
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* Sets the MIME header whose name is "Content-ID" with the given value.
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*
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* @param contentId a <code>String</code> giving the value of the
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* "Content-ID" header
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*
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* @exception IllegalArgumentException if there was a problem with
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* the specified <code>contentId</code> value
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* @see #getContentId
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*/
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public void setContentId(String contentId)
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{
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setMimeHeader("Content-ID", contentId);
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}
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/**
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* Sets the MIME header whose name is "Content-Location" with the given value.
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*
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*
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* @param contentLocation a <code>String</code> giving the value of the
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* "Content-Location" header
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* @exception IllegalArgumentException if there was a problem with
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* the specified content location
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*/
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public void setContentLocation(String contentLocation)
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{
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setMimeHeader("Content-Location", contentLocation);
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}
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/**
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* Sets the MIME header whose name is "Content-Type" with the given value.
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*
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* @param contentType a <code>String</code> giving the value of the
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* "Content-Type" header
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*
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* @exception IllegalArgumentException if there was a problem with
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* the specified content type
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*/
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public void setContentType(String contentType)
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{
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setMimeHeader("Content-Type", contentType);
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}
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/**
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* Removes all MIME headers that match the given name.
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*
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* @param header the string name of the MIME header/s to
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* be removed
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*/
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public abstract void removeMimeHeader(String header);
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/**
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* Removes all the MIME header entries.
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*/
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public abstract void removeAllMimeHeaders();
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/**
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* Gets all the values of the header identified by the given
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* <code>String</code>.
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*
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* @param name the name of the header; example: "Content-Type"
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* @return a <code>String</code> array giving the value for the
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* specified header
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* @see #setMimeHeader
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*/
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public abstract String[] getMimeHeader(String name);
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/**
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* Changes the first header entry that matches the given name
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* to the given value, adding a new header if no existing header
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* matches. This method also removes all matching headers but the first. <p>
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*
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* Note that RFC822 headers can only contain US-ASCII characters.
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*
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* @param name a <code>String</code> giving the name of the header
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* for which to search
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* @param value a <code>String</code> giving the value to be set for
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* the header whose name matches the given name
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*
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* @exception IllegalArgumentException if there was a problem with
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* the specified mime header name or value
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*/
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public abstract void setMimeHeader(String name, String value);
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/**
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* Adds a MIME header with the specified name and value to this
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* <code>AttachmentPart</code> object.
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* <p>
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* Note that RFC822 headers can contain only US-ASCII characters.
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*
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* @param name a <code>String</code> giving the name of the header
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* to be added
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* @param value a <code>String</code> giving the value of the header
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* to be added
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*
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* @exception IllegalArgumentException if there was a problem with
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* the specified mime header name or value
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*/
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public abstract void addMimeHeader(String name, String value);
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/**
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* Retrieves all the headers for this <code>AttachmentPart</code> object
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* as an iterator over the <code>MimeHeader</code> objects.
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*
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|
* @return an <code>Iterator</code> object with all of the Mime
|
|
* headers for this <code>AttachmentPart</code> object
|
|
*/
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|
public abstract Iterator getAllMimeHeaders();
|
|
|
|
/**
|
|
* Retrieves all <code>MimeHeader</code> objects that match a name in
|
|
* the given array.
|
|
*
|
|
* @param names a <code>String</code> array with the name(s) of the
|
|
* MIME headers to be returned
|
|
* @return all of the MIME headers that match one of the names in the
|
|
* given array as an <code>Iterator</code> object
|
|
*/
|
|
public abstract Iterator getMatchingMimeHeaders(String[] names);
|
|
|
|
/**
|
|
* Retrieves all <code>MimeHeader</code> objects whose name does
|
|
* not match a name in the given array.
|
|
*
|
|
* @param names a <code>String</code> array with the name(s) of the
|
|
* MIME headers not to be returned
|
|
* @return all of the MIME headers in this <code>AttachmentPart</code> object
|
|
* except those that match one of the names in the
|
|
* given array. The nonmatching MIME headers are returned as an
|
|
* <code>Iterator</code> object.
|
|
*/
|
|
public abstract Iterator getNonMatchingMimeHeaders(String[] names);
|
|
}
|