/*
* Copyright (c) 2005, 2006, 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
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/*
* $Id: AttachmentPart.java,v 1.13 2006/03/30 00:59:38 ofung Exp $
* $Revision: 1.13 $
* $Date: 2006/03/30 00:59:38 $
*/
package javax.xml.soap;
import java.io.InputStream;
import java.io.Reader;
import java.util.Iterator;
import javax.activation.DataHandler;
/**
* A single attachment to a <code>SOAPMessage</code> object. A <code>SOAPMessage</code>
* object may contain zero, one, or many <code>AttachmentPart</code> objects.
* Each <code>AttachmentPart</code> object consists of two parts,
* application-specific content and associated MIME headers. The
* MIME headers consists of name/value pairs that can be used to
* identify and describe the content.
* <p>
* An <code>AttachmentPart</code> object must conform to certain standards.
* <OL>
* <LI>It must conform to <a href="http://www.ietf.org/rfc/rfc2045.txt">
* MIME [RFC2045] standards</a>
* <LI>It MUST contain content
* <LI>The header portion MUST include the following header:
* <UL>
* <LI><code>Content-Type</code><br>
* This header identifies the type of data in the content of an
* <code>AttachmentPart</code> object and MUST conform to [RFC2045].
* The following is an example of a Content-Type header:
* <PRE>
* Content-Type: application/xml
* </PRE>
* The following line of code, in which <code>ap</code> is an
* <code>AttachmentPart</code> object, sets the header shown in
* the previous example.
* <PRE>
* ap.setMimeHeader("Content-Type", "application/xml");
* </PRE>
* <p>
* </UL>
* </OL>
* <p>
* There are no restrictions on the content portion of an <code>
* AttachmentPart</code> object. The content may be anything from a
* simple plain text object to a complex XML document or image file.
*
* <p>
* An <code>AttachmentPart</code> object is created with the method
* <code>SOAPMessage.createAttachmentPart</code>. After setting its MIME headers,
* the <code>AttachmentPart</code> object is added to the message
* that created it with the method <code>SOAPMessage.addAttachmentPart</code>.
*
* <p>
* The following code fragment, in which <code>m</code> is a
* <code>SOAPMessage</code> object and <code>contentStringl</code> is a
* <code>String</code>, creates an instance of <code>AttachmentPart</code>,
* sets the <code>AttachmentPart</code> object with some content and
* header information, and adds the <code>AttachmentPart</code> object to
* the <code>SOAPMessage</code> object.
* <PRE>
* AttachmentPart ap1 = m.createAttachmentPart();
* ap1.setContent(contentString1, "text/plain");
* m.addAttachmentPart(ap1);
* </PRE>
*
*
* <p>
* The following code fragment creates and adds a second
* <code>AttachmentPart</code> instance to the same message. <code>jpegData</code>
* is a binary byte buffer representing the jpeg file.
* <PRE>
* AttachmentPart ap2 = m.createAttachmentPart();
* byte[] jpegData = ...;
* ap2.setContent(new ByteArrayInputStream(jpegData), "image/jpeg");
* m.addAttachmentPart(ap2);
* </PRE>
* <p>
* The <code>getContent</code> method retrieves the contents and header from
* an <code>AttachmentPart</code> object. Depending on the
* <code>DataContentHandler</code> objects present, the returned
* <code>Object</code> can either be a typed Java object corresponding
* to the MIME type or an <code>InputStream</code> object that contains the
* content as bytes.
* <PRE>
* String content1 = ap1.getContent();
* java.io.InputStream content2 = ap2.getContent();
* </PRE>
*
* The method <code>clearContent</code> removes all the content from an
* <code>AttachmentPart</code> object but does not affect its header information.
* <PRE>
* ap1.clearContent();
* </PRE>
*/
public abstract class AttachmentPart {
/**
* Returns the number of bytes in this <code>AttachmentPart</code>
* object.
*
* @return the size of this <code>AttachmentPart</code> object in bytes
* or -1 if the size cannot be determined
* @exception SOAPException if the content of this attachment is
* corrupted of if there was an exception while trying
* to determine the size.
*/
public abstract int getSize() throws SOAPException;
/**
* Clears out the content of this <code>AttachmentPart</code> object.
* The MIME header portion is left untouched.
*/
public abstract void clearContent();
/**
* Gets the content of this <code>AttachmentPart</code> object as a Java
* object. The type of the returned Java object depends on (1) the
* <code>DataContentHandler</code> object that is used to interpret the bytes
* and (2) the <code>Content-Type</code> given in the header.
* <p>
* For the MIME content types "text/plain", "text/html" and "text/xml", the
* <code>DataContentHandler</code> object does the conversions to and
* from the Java types corresponding to the MIME types.
* For other MIME types,the <code>DataContentHandler</code> object
* can return an <code>InputStream</code> object that contains the content data
* as raw bytes.
* <p>
* A SAAJ-compliant implementation must, as a minimum, return a
* <code>java.lang.String</code> object corresponding to any content
* stream with a <code>Content-Type</code> value of
* <code>text/plain</code>, a
* <code>javax.xml.transform.stream.StreamSource</code> object corresponding to a
* content stream with a <code>Content-Type</code> value of
* <code>text/xml</code>, a <code>java.awt.Image</code> object
* corresponding to a content stream with a
* <code>Content-Type</code> value of <code>image/gif</code> or
* <code>image/jpeg</code>. For those content types that an
* installed <code>DataContentHandler</code> object does not understand, the
* <code>DataContentHandler</code> object is required to return a
* <code>java.io.InputStream</code> object with the raw bytes.
*
* @return a Java object with the content of this <code>AttachmentPart</code>
* object
*
* @exception SOAPException if there is no content set into this
* <code>AttachmentPart</code> object or if there was a data
* transformation error
*/
public abstract Object getContent() throws SOAPException;
/**
* Gets the content of this <code>AttachmentPart</code> object as an
* InputStream as if a call had been made to <code>getContent</code> and no
* <code>DataContentHandler</code> had been registered for the
* <code>content-type</code> of this <code>AttachmentPart</code>.
*<p>
* Note that reading from the returned InputStream would result in consuming
* the data in the stream. It is the responsibility of the caller to reset
* the InputStream appropriately before calling a Subsequent API. If a copy
* of the raw attachment content is required then the {@link #getRawContentBytes} API
* should be used instead.
*
* @return an <code>InputStream</code> from which the raw data contained by
* the <code>AttachmentPart</code> can be accessed.
*
* @throws SOAPException if there is no content set into this
* <code>AttachmentPart</code> object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
* @see #getRawContentBytes
*/
public abstract InputStream getRawContent() throws SOAPException;
/**
* Gets the content of this <code>AttachmentPart</code> object as a
* byte[] array as if a call had been made to <code>getContent</code> and no
* <code>DataContentHandler</code> had been registered for the
* <code>content-type</code> of this <code>AttachmentPart</code>.
*
* @return a <code>byte[]</code> array containing the raw data of the
* <code>AttachmentPart</code>.
*
* @throws SOAPException if there is no content set into this
* <code>AttachmentPart</code> object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
*/
public abstract byte[] getRawContentBytes() throws SOAPException;
/**
* Returns an <code>InputStream</code> which can be used to obtain the
* content of <code>AttachmentPart</code> as Base64 encoded
* character data, this method would base64 encode the raw bytes
* of the attachment and return.
*
* @return an <code>InputStream</code> from which the Base64 encoded
* <code>AttachmentPart</code> can be read.
*
* @throws SOAPException if there is no content set into this
* <code>AttachmentPart</code> object or if there was a data
* transformation error.
*
* @since SAAJ 1.3
*/
public abstract InputStream getBase64Content() throws SOAPException;
/**
* Sets the content of this attachment part to that of the given
* <code>Object</code> and sets the value of the <code>Content-Type</code>
* header to the given type. The type of the
* <code>Object</code> should correspond to the value given for the
* <code>Content-Type</code>. This depends on the particular
* set of <code>DataContentHandler</code> objects in use.
*
*
* @param object the Java object that makes up the content for
* this attachment part
* @param contentType the MIME string that specifies the type of
* the content
*
* @exception IllegalArgumentException may be thrown if the contentType
* does not match the type of the content object, or if there
* was no <code>DataContentHandler</code> object for this
* content object
*
* @see #getContent
*/
public abstract void setContent(Object object, String contentType);
/**
* Sets the content of this attachment part to that contained by the
* <code>InputStream</code> <code>content</code> and sets the value of the
* <code>Content-Type</code> header to the value contained in
* <code>contentType</code>.
* <P>
* A subsequent call to getSize() may not be an exact measure
* of the content size.
*
* @param content the raw data to add to the attachment part
* @param contentType the value to set into the <code>Content-Type</code>
* header
*
* @exception SOAPException if an there is an error in setting the content
* @exception NullPointerException if <code>content</code> is null
* @since SAAJ 1.3
*/
public abstract void setRawContent(InputStream content, String contentType) throws SOAPException;
/**
* Sets the content of this attachment part to that contained by the
* <code>byte[]</code> array <code>content</code> and sets the value of the
* <code>Content-Type</code> header to the value contained in
* <code>contentType</code>.
*
* @param content the raw data to add to the attachment part
* @param contentType the value to set into the <code>Content-Type</code>
* header
* @param offset the offset in the byte array of the content
* @param len the number of bytes that form the content
*
* @exception SOAPException if an there is an error in setting the content
* or content is null
* @since SAAJ 1.3
*/
public abstract void setRawContentBytes(
byte[] content, int offset, int len, String contentType)
throws SOAPException;
/**
* Sets the content of this attachment part from the Base64 source
* <code>InputStream</code> and sets the value of the
* <code>Content-Type</code> header to the value contained in
* <code>contentType</code>, This method would first decode the base64
* input and write the resulting raw bytes to the attachment.
* <P>
* A subsequent call to getSize() may not be an exact measure
* of the content size.
*
* @param content the base64 encoded data to add to the attachment part
* @param contentType the value to set into the <code>Content-Type</code>
* header
*
* @exception SOAPException if an there is an error in setting the content
* @exception NullPointerException if <code>content</code> is null
*
* @since SAAJ 1.3
*/
public abstract void setBase64Content(
InputStream content, String contentType) throws SOAPException;
/**
* Gets the <code>DataHandler</code> object for this <code>AttachmentPart</code>
* object.
*
* @return the <code>DataHandler</code> object associated with this
* <code>AttachmentPart</code> object
*
* @exception SOAPException if there is no data in
* this <code>AttachmentPart</code> object
*/
public abstract DataHandler getDataHandler()
throws SOAPException;
/**
* Sets the given <code>DataHandler</code> object as the data handler
* for this <code>AttachmentPart</code> object. Typically, on an incoming
* message, the data handler is automatically set. When
* a message is being created and populated with content, the
* <code>setDataHandler</code> method can be used to get data from
* various data sources into the message.
*
* @param dataHandler the <code>DataHandler</code> object to be set
*
* @exception IllegalArgumentException if there was a problem with
* the specified <code>DataHandler</code> object
*/
public abstract void setDataHandler(DataHandler dataHandler);
/**
* Gets the value of the MIME header whose name is "Content-ID".
*
* @return a <code>String</code> giving the value of the
* "Content-ID" header or <code>null</code> if there
* is none
* @see #setContentId
*/
public String getContentId() {
String[] values = getMimeHeader("Content-ID");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Gets the value of the MIME header whose name is "Content-Location".
*
* @return a <code>String</code> giving the value of the
* "Content-Location" header or <code>null</code> if there
* is none
*/
public String getContentLocation() {
String[] values = getMimeHeader("Content-Location");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Gets the value of the MIME header whose name is "Content-Type".
*
* @return a <code>String</code> giving the value of the
* "Content-Type" header or <code>null</code> if there
* is none
*/
public String getContentType() {
String[] values = getMimeHeader("Content-Type");
if (values != null && values.length > 0)
return values[0];
return null;
}
/**
* Sets the MIME header whose name is "Content-ID" with the given value.
*
* @param contentId a <code>String</code> giving the value of the
* "Content-ID" header
*
* @exception IllegalArgumentException if there was a problem with
* the specified <code>contentId</code> value
* @see #getContentId
*/
public void setContentId(String contentId)
{
setMimeHeader("Content-ID", contentId);
}
/**
* Sets the MIME header whose name is "Content-Location" with the given value.
*
*
* @param contentLocation a <code>String</code> giving the value of the
* "Content-Location" header
* @exception IllegalArgumentException if there was a problem with
* the specified content location
*/
public void setContentLocation(String contentLocation)
{
setMimeHeader("Content-Location", contentLocation);
}
/**
* Sets the MIME header whose name is "Content-Type" with the given value.
*
* @param contentType a <code>String</code> giving the value of the
* "Content-Type" header
*
* @exception IllegalArgumentException if there was a problem with
* the specified content type
*/
public void setContentType(String contentType)
{
setMimeHeader("Content-Type", contentType);
}
/**
* Removes all MIME headers that match the given name.
*
* @param header the string name of the MIME header/s to
* be removed
*/
public abstract void removeMimeHeader(String header);
/**
* Removes all the MIME header entries.
*/
public abstract void removeAllMimeHeaders();
/**
* Gets all the values of the header identified by the given
* <code>String</code>.
*
* @param name the name of the header; example: "Content-Type"
* @return a <code>String</code> array giving the value for the
* specified header
* @see #setMimeHeader
*/
public abstract String[] getMimeHeader(String name);
/**
* Changes the first header entry that matches the given name
* to the given value, adding a new header if no existing header
* matches. This method also removes all matching headers but the first. <p>
*
* Note that RFC822 headers can only contain US-ASCII characters.
*
* @param name a <code>String</code> giving the name of the header
* for which to search
* @param value a <code>String</code> giving the value to be set for
* the header whose name matches the given name
*
* @exception IllegalArgumentException if there was a problem with
* the specified mime header name or value
*/
public abstract void setMimeHeader(String name, String value);
/**
* Adds a MIME header with the specified name and value to this
* <code>AttachmentPart</code> object.
* <p>
* Note that RFC822 headers can contain only US-ASCII characters.
*
* @param name a <code>String</code> giving the name of the header
* to be added
* @param value a <code>String</code> giving the value of the header
* to be added
*
* @exception IllegalArgumentException if there was a problem with
* the specified mime header name or value
*/
public abstract void addMimeHeader(String name, String value);
/**
* Retrieves all the headers for this <code>AttachmentPart</code> object
* as an iterator over the <code>MimeHeader</code> objects.
*
* @return an <code>Iterator</code> object with all of the Mime
* headers for this <code>AttachmentPart</code> object
*/
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);
}