/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.xml.soap;
import javax.activation.DataHandler;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Iterator;
/**
* <P>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>
*
* <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>
*
* <P>A new <CODE>SOAPMessage</CODE> object contains the following
* by default:</P>
*
* <UL>
* <LI>A <CODE>SOAPPart</CODE> object</LI>
*
* <LI>A <CODE>SOAPEnvelope</CODE> object</LI>
*
* <LI>A <CODE>SOAPBody</CODE> object</LI>
*
* <LI>A <CODE>SOAPHeader</CODE> object</LI>
* </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>
*
* <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>
*
* <P>A <CODE>MessageFactory</CODE> object creates new <CODE>
* SOAPMessage</CODE> objects. If the <CODE>MessageFactory</CODE>
* object was initialized with a messaging Profile, it produces
* <CODE>SOAPMessage</CODE> objects that conform to that Profile.
* For example, a <CODE>SOAPMessage</CODE> object created by a
* <CODE>MessageFactory</CODE> object initialized with the ebXML
* Profile will have the appropriate ebXML headers.</P>
* @see MessageFactory MessageFactory
* @see AttachmentPart AttachmentPart
*/
public abstract class SOAPMessage {
public SOAPMessage() {}
/**
* 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(java.lang.String) setContentDescription(java.lang.String)
*/
public abstract String getContentDescription();
/**
* 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() getContentDescription()
*/
public abstract void setContentDescription(String description);
/**
* Gets the SOAP part of this <CODE>SOAPMessage</CODE> object.
*
*
* <P>If a <CODE>SOAPMessage</CODE> object contains one or
* more attachments, the SOAP Part must be the first MIME body
* part in the message.</P>
* @return the <CODE>SOAPPart</CODE> object for this <CODE>
* SOAPMessage</CODE> object
*/
public abstract SOAPPart getSOAPPart();
/**
* 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.</P>
*/
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);
/**
* 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
* @throws java.lang.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
* @throws java.lang.IllegalArgumentException if
* there was a problem with the specified <CODE>
* DataHandler</CODE> object
* @see DataHandler DataHandler
* @see javax.activation.DataContentHandler DataContentHandler
*/
public AttachmentPart createAttachmentPart(DataHandler datahandler) {
AttachmentPart attachmentpart = createAttachmentPart();
attachmentpart.setDataHandler(datahandler);
return attachmentpart;
}
/**
* 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.
* @param content an <CODE>Object</CODE>
* containing the content for this <CODE>SOAPMessage</CODE>
* object
* @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
* @throws java.lang.IllegalArgumentException 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 DataHandler DataHandler
* @see javax.activation.DataContentHandler DataContentHandler
*/
public AttachmentPart createAttachmentPart(Object content,
String contentType) {
AttachmentPart attachmentpart = createAttachmentPart();
attachmentpart.setContent(content, contentType);
return attachmentpart;
}
/**
* Updates this <CODE>SOAPMessage</CODE> object with all the
* changes that have been made to it. This method is called
* automatically when a message is sent or written to by the
* methods <CODE>ProviderConnection.send</CODE>, <CODE>
* SOAPConnection.call</CODE>, or <CODE>
* SOAPMessage.writeTo</CODE>. 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>
* @throws SOAPException if there
* was a problem saving changes to this message.
*/
public abstract void saveChanges() throws SOAPException;
/**
* Indicates whether this <CODE>SOAPMessage</CODE> object
* has had the method <CODE>saveChanges</CODE> called on
* it.
* @return <CODE>true</CODE> if <CODE>saveChanges</CODE> has
* been called on this message at least once; <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>
* @param out the <CODE>OutputStream</CODE>
* object to which this <CODE>SOAPMessage</CODE> object will
* be written
* @throws SOAPException if there was a problem in
* externalizing this SOAP message
* @throws IOException if an I/O error
* occurs
*/
public abstract void writeTo(OutputStream out)
throws SOAPException, IOException;
/**
* Gets the SOAP Body contained in this <code>SOAPMessage</code> object.
*
* @return the <code>SOAPBody</code> object contained by this
* <code>SOAPMessage</code> object
* @throws SOAPException if the SOAP Body does not exist or cannot be
* retrieved
*/
public SOAPBody getSOAPBody() throws SOAPException {
throw new UnsupportedOperationException("getSOAPBody must be overridden in subclasses of SOAPMessage");
}
/**
* Gets the SOAP Header contained in this <code>SOAPMessage</code> object.
*
* @return the <code>SOAPHeader</code> object contained by this
* <code>SOAPMessage</code> object
* @throws SOAPException if the SOAP Header does not exist or cannot be
* retrieved
*/
public SOAPHeader getSOAPHeader() throws SOAPException {
throw new UnsupportedOperationException("getSOAPHeader must be overridden in subclasses of SOAPMessage");
}
/**
* 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 <code>WRITE_XML_DECLARATION</code> and
* <code>CHARACTER_SET_ENCODING</code>. 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
* @throws SOAPException if the property name is not recognized
*/
public void setProperty(String property, Object value)
throws SOAPException {
throw new UnsupportedOperationException("setProperty must be overridden in subclasses of SOAPMessage");
}
/**
* Retrieves value of the specified property.
*
* @param property the name of the property to retrieve
* @return the value of the property or <code>null</code> if no such
* property exists
* @throws SOAPException if the property name is not recognized
*/
public Object getProperty(String property) throws SOAPException {
throw new UnsupportedOperationException("getProperty must be overridden in subclasses of SOAPMessage");
}
/** Specifies the character type encoding for the SOAP Message. */
public static final String CHARACTER_SET_ENCODING
= "javax.xml.soap.character-set-encoding";
/** Specifies whether the SOAP Message should contain an XML declaration. */
public static final String WRITE_XML_DECLARATION
= "javax.xml.soap.write-xml-declaration";
}
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