/*
* 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: SOAPMessage.java,v 1.23 2006/03/30 00:59:42 ofung Exp $
* $Revision: 1.23 $
* $Date: 2006/03/30 00:59:42 $
*/
package javax.xml.soap;
import java.io.OutputStream;
import java.io.IOException;
import java.util.Iterator;
import javax.activation.DataHandler;
/**
* The root class for all SOAP messages. As transmitted on the "wire", a SOAP
* message is an XML document or a MIME message whose first body part is an
* XML/SOAP document.
* <P>
* A <code>SOAPMessage</code> object consists of a SOAP part and optionally
* one or more attachment parts. The SOAP part for a <code>SOAPMessage</code>
* object is a <code>SOAPPart</code> object, which contains information used
* for message routing and identification, and which can contain
* application-specific content. All data in the SOAP Part of a message must be
* in XML format.
* <P>
* A new <code>SOAPMessage</code> object contains the following by default:
* <UL>
* <LI>A <code>SOAPPart</code> object
* <LI>A <code>SOAPEnvelope</code> object
* <LI>A <code>SOAPBody</code> object
* <LI>A <code>SOAPHeader</code> object
* </UL>
* The SOAP part of a message can be retrieved by calling the method <code>SOAPMessage.getSOAPPart()</code>.
* The <code>SOAPEnvelope</code> object is retrieved from the <code>SOAPPart</code>
* object, and the <code>SOAPEnvelope</code> object is used to retrieve the
* <code>SOAPBody</code> and <code>SOAPHeader</code> objects.
*
* <PRE>
* SOAPPart sp = message.getSOAPPart();
* SOAPEnvelope se = sp.getEnvelope();
* SOAPBody sb = se.getBody();
* SOAPHeader sh = se.getHeader();
* </PRE>
*
* <P>
* In addition to the mandatory <code>SOAPPart</code> object, a <code>SOAPMessage</code>
* object may contain zero or more <code>AttachmentPart</code> objects, each
* of which contains application-specific data. The <code>SOAPMessage</code>
* interface provides methods for creating <code>AttachmentPart</code>
* objects and also for adding them to a <code>SOAPMessage</code> object. A
* party that has received a <code>SOAPMessage</code> object can examine its
* contents by retrieving individual attachment parts.
* <P>
* Unlike the rest of a SOAP message, an attachment is not required to be in
* XML format and can therefore be anything from simple text to an image file.
* Consequently, any message content that is not in XML format must be in an
* <code>AttachmentPart</code> object.
* <P>
* A <code>MessageFactory</code> object may create <code>SOAPMessage</code>
* objects with behavior that is specialized to a particular implementation or
* application of SAAJ. For instance, a <code>MessageFactory</code> object
* may produce <code>SOAPMessage</code> objects that conform to a particular
* Profile such as ebXML. In this case a <code>MessageFactory</code> object
* might produce <code>SOAPMessage</code> objects that are initialized with
* ebXML headers.
* <P>
* In order to ensure backward source compatibility, methods that are added to
* this class after version 1.1 of the SAAJ specification are all concrete
* instead of abstract and they all have default implementations. Unless
* otherwise noted in the JavaDocs for those methods the default
* implementations simply throw an <code>UnsupportedOperationException</code>
* and the SAAJ implementation code must override them with methods that
* provide the specified behavior. Legacy client code does not have this
* restriction, however, so long as there is no claim made that it conforms to
* some later version of the specification than it was originally written for.
* A legacy class that extends the SOAPMessage class can be compiled and/or run
* against succeeding versions of the SAAJ API without modification. If such a
* class was correctly implemented then it will continue to behave correctly
* relative to the version of the specification against which it was written.
*
* @see MessageFactory
* @see AttachmentPart
*/
public abstract class SOAPMessage {
/**
* Specifies the character type encoding for the SOAP Message. Valid values
* include "utf-8" and "utf-16". See vendor documentation for additional
* supported values. The default is "utf-8".
*
* @see SOAPMessage#setProperty(String, Object) SOAPMessage.setProperty
* @since SAAJ 1.2
*/
public static final String CHARACTER_SET_ENCODING =
"javax.xml.soap.character-set-encoding";
/**
* Specifies whether the SOAP Message will contain an XML declaration when
* it is sent. The only valid values are "true" and "false". The default is
* "false".
*
* @see SOAPMessage#setProperty(String, Object) SOAPMessage.setProperty
* @since SAAJ 1.2
*/
public static final String WRITE_XML_DECLARATION =
"javax.xml.soap.write-xml-declaration";
/**
* Sets the description of this <code>SOAPMessage</code> object's
* content with the given description.
*
* @param description a <code>String</code> describing the content of this
* message
* @see #getContentDescription
*/
public abstract void setContentDescription(String description);
/**
* Retrieves a description of this <code>SOAPMessage</code> object's
* content.
*
* @return a <code>String</code> describing the content of this
* message or <code>null</code> if no description has been set
* @see #setContentDescription
*/
public abstract String getContentDescription();
/**
* Gets the SOAP part of this <code>SOAPMessage</code> object.
* <P>
* <code>SOAPMessage</code> object contains one or more attachments, the
* SOAP Part must be the first MIME body part in the message.
*
* @return the <code>SOAPPart</code> object for this <code>SOAPMessage</code>
* object
*/
public abstract SOAPPart getSOAPPart();
/**
* Gets the SOAP Body contained in this <code>SOAPMessage</code> object.
* <p>
*
* @return the <code>SOAPBody</code> object contained by this <code>SOAPMessage</code>
* object
* @exception SOAPException
* if the SOAP Body does not exist or cannot be retrieved
* @since SAAJ 1.2
*/
public SOAPBody getSOAPBody() throws SOAPException {
throw new UnsupportedOperationException("getSOAPBody must be overridden by all subclasses of SOAPMessage");
}
/**
* Gets the SOAP Header contained in this <code>SOAPMessage</code>
* object.
* <p>
*
* @return the <code>SOAPHeader</code> object contained by this <code>SOAPMessage</code>
* object
* @exception SOAPException
* if the SOAP Header does not exist or cannot be retrieved
* @since SAAJ 1.2
*/
public SOAPHeader getSOAPHeader() throws SOAPException {
throw new UnsupportedOperationException("getSOAPHeader must be overridden by all subclasses of SOAPMessage");
}
/**
* Removes all <code>AttachmentPart</code> objects that have been added
* to this <code>SOAPMessage</code> object.
* <P>
* This method does not touch the SOAP part.
*/
public abstract void removeAllAttachments();
/**
* Gets a count of the number of attachments in this message. This count
* does not include the SOAP part.
*
* @return the number of <code>AttachmentPart</code> objects that are
* part of this <code>SOAPMessage</code> object
*/
public abstract int countAttachments();
/**
* Retrieves all the <code>AttachmentPart</code> objects that are part of
* this <code>SOAPMessage</code> object.
*
* @return an iterator over all the attachments in this message
*/
public abstract Iterator getAttachments();
/**
* Retrieves all the <code>AttachmentPart</code> objects that have header
* entries that match the specified headers. Note that a returned
* attachment could have headers in addition to those specified.
*
* @param headers
* a <code>MimeHeaders</code> object containing the MIME
* headers for which to search
* @return an iterator over all attachments that have a header that matches
* one of the given headers
*/
public abstract Iterator getAttachments(MimeHeaders headers);
/**
* Removes all the <code>AttachmentPart</code> objects that have header
* entries that match the specified headers. Note that the removed
* attachment could have headers in addition to those specified.
*
* @param headers
* a <code>MimeHeaders</code> object containing the MIME
* headers for which to search
* @since SAAJ 1.3
*/
public abstract void removeAttachments(MimeHeaders headers);
/**
* Returns an <code>AttachmentPart</code> object that is associated with an
* attachment that is referenced by this <code>SOAPElement</code> or
* <code>null</code> if no such attachment exists. References can be made
* via an <code>href</code> attribute as described in
* {@link <a href="http://www.w3.org/TR/SOAP-attachments#SOAPReferenceToAttachements">SOAP Messages with Attachments</a>},
* or via a single <code>Text</code> child node containing a URI as
* described in the WS-I Attachments Profile 1.0 for elements of schema
* type <i>ref:swaRef</i>({@link <a href=http://www.ws-i.org/Profiles/AttachmentsProfile-1.0-2004-08-24.html">ref:swaRef</a>}). These two mechanisms must be supported.
* The support for references via <code>href</code> attribute also implies that
* this method should also be supported on an element that is an
* <i>xop:Include</i> element (
* {@link <a href="http://www.w3.org/2000/xp/Group/3/06/Attachments/XOP.html">XOP</a>}).
* other reference mechanisms may be supported by individual
* implementations of this standard. Contact your vendor for details.
*
* @param element The <code>SOAPElement</code> containing the reference to an Attachment
* @return the referenced <code>AttachmentPart</code> or null if no such
* <code>AttachmentPart</code> exists or no reference can be
* found in this <code>SOAPElement</code>.
* @throws SOAPException if there is an error in the attempt to access the
* attachment
*
* @since SAAJ 1.3
*/
public abstract AttachmentPart getAttachment(SOAPElement element) throws SOAPException;
/**
* Adds the given <code>AttachmentPart</code> object to this <code>SOAPMessage</code>
* object. An <code>AttachmentPart</code> object must be created before
* it can be added to a message.
*
* @param AttachmentPart
* an <code>AttachmentPart</code> object that is to become part
* of this <code>SOAPMessage</code> object
* @exception IllegalArgumentException
*/
public abstract void addAttachmentPart(AttachmentPart AttachmentPart);
/**
* Creates a new empty <code>AttachmentPart</code> object. Note that the
* method <code>addAttachmentPart</code> must be called with this new
* <code>AttachmentPart</code> object as the parameter in order for it to
* become an attachment to this <code>SOAPMessage</code> object.
*
* @return a new <code>AttachmentPart</code> object that can be populated
* and added to this <code>SOAPMessage</code> object
*/
public abstract AttachmentPart createAttachmentPart();
/**
* Creates an <code>AttachmentPart</code> object and populates it using
* the given <code>DataHandler</code> object.
*
* @param dataHandler
* the <code>javax.activation.DataHandler</code> object that
* will generate the content for this <code>SOAPMessage</code>
* object
* @return a new <code>AttachmentPart</code> object that contains data
* generated by the given <code>DataHandler</code> object
* @exception IllegalArgumentException
* if there was a problem with the specified <code>DataHandler</code>
* object
* @see javax.activation.DataHandler
* @see javax.activation.DataContentHandler
*/
public AttachmentPart createAttachmentPart(DataHandler dataHandler) {
AttachmentPart attachment = createAttachmentPart();
attachment.setDataHandler(dataHandler);
return attachment;
}
/**
* Returns all the transport-specific MIME headers for this <code>SOAPMessage</code>
* object in a transport-independent fashion.
*
* @return a <code>MimeHeaders</code> object containing the <code>MimeHeader</code>
* objects
*/
public abstract MimeHeaders getMimeHeaders();
/**
* Creates an <code>AttachmentPart</code> object and populates it with
* the specified data of the specified content type. The type of the
* <code>Object</code> should correspond to the value given for the
* <code>Content-Type</code>.
*
* @param content
* an <code>Object</code> containing the content for the
* <code>AttachmentPart</code> object to be created
* @param contentType
* a <code>String</code> object giving the type of content;
* examples are "text/xml", "text/plain", and "image/jpeg"
* @return a new <code>AttachmentPart</code> object that contains the
* given data
* @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 the given
* content object
* @see javax.activation.DataHandler
* @see javax.activation.DataContentHandler
*/
public AttachmentPart createAttachmentPart(
Object content,
String contentType) {
AttachmentPart attachment = createAttachmentPart();
attachment.setContent(content, contentType);
return attachment;
}
/**
* Updates this <code>SOAPMessage</code> object with all the changes that
* have been made to it. This method is called automatically when
* {@link SOAPMessage#writeTo(OutputStream)} is called. However, if
* changes are made to a message that was received or to one that has
* already been sent, the method <code>saveChanges</code> needs to be
* called explicitly in order to save the changes. The method <code>saveChanges</code>
* also generates any changes that can be read back (for example, a
* MessageId in profiles that support a message id). All MIME headers in a
* message that is created for sending purposes are guaranteed to have
* valid values only after <code>saveChanges</code> has been called.
* <P>
* In addition, this method marks the point at which the data from all
* constituent <code>AttachmentPart</code> objects are pulled into the
* message.
* <P>
*
* @exception <code>SOAPException</code> if there was a problem saving
* changes to this message.
*/
public abstract void saveChanges() throws SOAPException;
/**
* Indicates whether this <code>SOAPMessage</code> object needs to have
* the method <code>saveChanges</code> called on it.
*
* @return <code>true</code> if <code>saveChanges</code> needs to be
* called; <code>false</code> otherwise.
*/
public abstract boolean saveRequired();
/**
* Writes this <code>SOAPMessage</code> object to the given output
* stream. The externalization format is as defined by the SOAP 1.1 with
* Attachments specification.
* <P>
* If there are no attachments, just an XML stream is written out. For
* those messages that have attachments, <code>writeTo</code> writes a
* MIME-encoded byte stream.
* <P>
* Note that this method does not write the transport-specific MIME Headers
* of the Message
*
* @param out
* the <code>OutputStream</code> object to which this <code>SOAPMessage</code>
* object will be written
* @exception IOException
* if an I/O error occurs
* @exception SOAPException
* if there was a problem in externalizing this SOAP message
*/
public abstract void writeTo(OutputStream out)
throws SOAPException, IOException;
/**
* Associates the specified value with the specified property. If there was
* already a value associated with this property, the old value is
* replaced.
* <p>
* The valid property names include
* {@link SOAPMessage#WRITE_XML_DECLARATION} and
* {@link SOAPMessage#CHARACTER_SET_ENCODING}. All of these standard SAAJ
* properties are prefixed by "javax.xml.soap". Vendors may also add
* implementation specific properties. These properties must be prefixed
* with package names that are unique to the vendor.
* <p>
* Setting the property <code>WRITE_XML_DECLARATION</code> to <code>"true"</code>
* will cause an XML Declaration to be written out at the start of the SOAP
* message. The default value of "false" suppresses this declaration.
* <p>
* The property <code>CHARACTER_SET_ENCODING</code> defaults to the value
* <code>"utf-8"</code> which causes the SOAP message to be encoded using
* UTF-8. Setting <code>CHARACTER_SET_ENCODING</code> to <code>"utf-16"</code>
* causes the SOAP message to be encoded using UTF-16.
* <p>
* Some implementations may allow encodings in addition to UTF-8 and
* UTF-16. Refer to your vendor's documentation for details.
*
* @param property
* the property with which the specified value is to be
* associated.
* @param value
* the value to be associated with the specified property
* @exception SOAPException
* if the property name is not recognized.
* @since SAAJ 1.2
*/
public void setProperty(String property, Object value)
throws SOAPException {
throw new UnsupportedOperationException("setProperty must be overridden by all subclasses of SOAPMessage");
}
/**
* Retrieves value of the specified property.
*
* @param property
* the name of the property to retrieve
* @return the value associated with the named property or <code>null</code>
* if no such property exists.
* @exception SOAPException
* if the property name is not recognized.
* @since SAAJ 1.2
*/
public Object getProperty(String property) throws SOAPException {
throw new UnsupportedOperationException("getProperty must be overridden by all subclasses of SOAPMessage");
}
}