IBM proprietary SOAP over JMS protocol (deprecated)
We can use a SOAP over Java Message Service (JMS) transport as an alternative to HTTP for communicating SOAP messages between clients and servers. The web services engine supports the use of an IBM proprietary implementation as well as the industry standard implementation.
Deprecated feature: In earlier versions of the application server, an IBM proprietary SOAP over JMS protocol was supported for JAX-RPC applications. In WebSphere Application Server 7.0 and later, this proprietary SOAP over JMS protocol is now deprecated in favor of an emerging industry standard SOAP over JMS protocol. We can use the IBM proprietary SOAP over JMS protocol with the Java API for XML Web Services (JAX-WS) or JAX-RPC web services; however, take advantage of the emerging standard SOAP over JMS protocol. If wer client application invokes enterprise beans-based web services that are supported by an earlier version of the WAS, you must continue to use the IBM proprietary SOAP over JMS protocol to access those web services. depfeat
We can use a SOAP over JMS transport if provide implementations for the client or server components, and verify the implementations are interoperable with the client and server components provided by the web services engine in the application server. The IBM proprietary SOAP over JMS protocol describes specific message exchange requirements for client and server components so they can exchange SOAP request and response messages through the use of the JMS APIs supported by the application server.
The client component is responsible for sending SOAP request messages and receiving SOAP response messages while adhering to the following protocol constraints:
- The client must use either a JMS TextMessage object, for example, javax.jms.TextMessage, or a BytesMessage object, for example, javax.jms.BytesMessage, to transmit the SOAP request message to the server. If the request message contains attachments, a BytesMessage object must be used.
If the request message does not contain attachments, the client can
use a TextMessage or a BytesMessage object. The application server client implementation uses only a BytesMessage object for the request message due to the potential need to transmit attachments.
- The client must set the following properties on the JMS request message before sending the message to the destination queue or topic:
- contentType: This property is similar to the Content-Type header found in an HTTP message and is used to describe the content type of the message. A text-only SOAP message, for example, a message with no attachments, is written as follows:
- text/xml; charset="UTF-8"
The contentType property in a SOAP request message containing attachments must be set as follows:
- multipart/related; type="text/xml"; start="<...content-id of first part...>"
This example represents a multi-part message, where the first part is of type text/xml containing the SOAP message. The other parts of the multi-part message contain various attachments. The HTTP 1.1 specification contains more information about the Content-Type header.
- enableTransaction: Set this optional property to true on the outgoing SOAP over JMS request message if the server component should process the web service request under the same transaction
that was used to receive the message from the destination queue or
topic. The client component should only set this property to true for a one-way request to avoid synchronization problems that can occur with a two-way web service request. If not set or
is set to the default value of false, then the server will suspend the transaction that was used to receive the request message from the destination queue or topic prior to invoking
the web services engine to process the request.
The client component should only set this property to true for a one-way request. Setting true for a two-way web server request is not supported because of synchronization problems.gotcha
- endpointURL: This property must be set to the JMS endpoint URL associated with the request.
- soapAction: This optional property is set on an outgoing SOAP
over JMS request message to indicate the soapAction value associated
with the web services request. This property is similar to the SOAPAction
HTTP header used when transporting web service requests over an HTTP transport. The value of the soapAction property is a URI identifying
the intent of the SOAP request. If the soapAction property is specified, it is used by the server component to determine the target of the request. The SOAP specification places no restrictions on the format or specificity of the URI or that it is resolvable. Typically, this property is set to the soapAction value from the WSDL document.
- targetService: This property must be set to the targetService
property value found in the JMS-style endpoint location URL for the request. This value is used by the server component to determine the port component in the target when dispatching the request.
- transportVersion: This property indicates the version number of the protocol used by the client and server. Set the value to 1 (one).
- contentType: This property is similar to the Content-Type header found in an HTTP message and is used to describe the content type of the message. A text-only SOAP message, for example, a message with no attachments, is written as follows:
- If the SOAP request message represents a two-way request, the client component must set the JMS message's replyTo property to specify the queue used for the reply message. The JMS message setJMSReplyTo method is used for this. It can be beneficial to configure a permanent replyTo queue
on the client to prevent the client from having to set the JMS message's
replyTo property each time a web service request is made.
- If the SOAP request message represents a one-way request, the client component must not set the JMS message's replyTo property.
- The client component must be prepared to handle a reply message
that is a BytesMessage or a TextMessage object, regardless of the type of JMS message used to transmit the SOAP request. The application server component responds with the same type of JMS message that is received from the client, unless the response contains attachments and a BytesMessage object must be used.
- The client component can assume that the reply message correlation ID matches the original request message ID.
The server component is responsible for receiving the SOAP request messages and sending the SOAP response messages while adhering to the following protocol constraints:
- The server must be prepared to receive a TextMessage or a BytesMessage.
If the request contains attachments, a ByteMessage must be used. The WebSphere product implementation of the server component responds in kind when sending the reply message back
to the client, unless the response contains attachments and a BytesMessage
is used.
- The server component must process the SOAP request properly to produce an appropriate SOAP reply message.
- The server component must send a reply message back to the client only if the JMS request message's replyTo property is set.
- The server component must set the following properties in the JMS reply message before sending the message to the replyTo queue:
- contentType: See the description for this property in the client responsibilities section.
- Set the correlation ID of the JMS reply message to the message ID of the original JMS request message. This is done by calling the JMS message setJMSCorrelationID method.
- transportVersion: This property indicates the version number of the protocol used by the client and server. Set the value to 1 (one).
- contentType: See the description for this property in the client responsibilities section.
The following example displays the results from calling the JMS message toString method for a request message without attachments:
JMSMessage class: jms_bytes JMSType: null JMSDeliveryMode: 2 JMSExpiration: 0 JMSPriority: 4 JMSMessageID: ID:d438eebf04cb124aa25c5821110a134f0000000000000001 JMSTimestamp: 1092110476167 JMSCorrelationID: null JMSDestination: topic://NewsGroupTopic?topicSpace=FvtTopicSpace JMSReplyTo: null JMSRedelivered: false JMS_IBM_System_MessageID: 6B6765B36943A18C_11000001 transportVersion: 1 JMSXUserID: targetService: NGConsumerJMS JMSXAppID: Service Integration Bus endpointURL: jms:/topic?destination=jms/NewsGroupTopic&connectionFactory;=jms/NewsGroupTCF&targetService;=NGConsumerJMS contentType: text/xml; charset=utf-8 3c736f6170656e763a456e76656c6f706520786d6c6e733a736f6170656e763d22687474703a2f2f 736368656d61732e786d6c736f61702e6f72672f736f61702f656e76656c6f70652f2220786d6c6e ...
JMSMessage class: jms_bytes JMSType: null JMSDeliveryMode: 2 JMSExpiration: 0 JMSPriority: 4 JMSMessageID: ID:d438eebf04cb124aa25c5821110a134f0000000000000001 JMSTimestamp: 1092110476167 JMSCorrelationID: null JMSDestination: topic://NewsGroupTopic?topicSpace=FvtTopicSpace JMSReplyTo: null JMSRedelivered: false JMS_IBM_System_MessageID: 6B6765B36943A18C_11000001 transportVersion: 1 JMSXUserID: targetService: NGConsumerJMS JMSXAppID: Service Integration Bus endpointURL: jms:/topic?destination=jms/NewsGroupTopic&connectionFactory; =jms/NewsGroupTCF&targetService;=NGConsumerJMS contentType: text/xml; charset=utf-8 3c736f6170656e763a456e76656c6f706520786d6c6e733a736f6170656e763d22687474703a2f2f 736368656d61732e786d6c736f61702e6f72672f736f61702f656e76656c6f70652f2220786d6c6e ...
The following SOAP Version 1.1 example displays the payload from the previous message example:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> <postMessage><ngName xsi:type="xsd:string">news.current.events</ngName> <msg xsi:type="xsd:string">This is a sample news item.</msg> </postMessage> </soapenv:Body> </soapenv:Envelope>
For SOAP Version 1.2, the encodingStyle parameter is not supported, so the example looks similar to the following:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body> <postMessage><ngName xsi:type="xsd:string">news.current.events</ngName> <msg xsi:type="xsd:string">This is a sample news item.</msg> </postMessage> </soapenv:Body> </soapenv:Envelope>
The following example displays the results from calling the JMS message toString method for a request message with attachments:
JMSMessage class: jms_bytes JMSType: null JMSDeliveryMode: 1 JMSExpiration: 1092086312310 JMSPriority: 4 JMSMessageID: ID:4bb64ed64e7d813d59ba5fec110a134f0000000000000001 JMSTimestamp: 1092086012310 JMSCorrelationID: null JMSDestination: queue://Logger_Q JMSReplyTo: queue://_Q_6B6765B36943A18C_00000385 JMSRedelivered: false JMS_IBM_System_MessageID: 6B6765B36943A18C_10000001 transportVersion: 1 JMSXUserID: targetService: WSLoggerJMS JMSXAppID: Service Integration Bus endpointURL: jms:/queue? destination=jms/Logger_Q&connectionFactory=jms/Logger_CF&targetService=WSLoggerJMS contentType: multipart/related; type="text/xml"; start="<945414389.1092086011970.IBM.WEBSERVICES@myhost1>"; boundary="----=_Part_0_247953397.1092086011970" 0d0a2d2d2d2d2d2d3d5f506172745f305f3234373935333339372e31303932303836303131393730 0d0a436f6e74656e742d547970653a20746578742f786d6c3b20636861727365743d5554462d380d ...
The following displays the payload from the previous message example:
Content-Type: multipart/related; type="text/xml";
start="<945414389.1092086011970.IBM.WEBSERVICES@myhost1>";
boundary="----=_Part_0_247953397.1092086011970"
------=_Part_0_247953397.1092086011970
Content-Type: text/xml; charset=UTF-8
Content-Transfer-Encoding: binary
Content-Id: <945414389.1092086011970.IBM.WEBSERVICES@myhost1>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<p499:InternationalizationContext soapenv:mustUnderstand="0"
xmlns:p499="http://www.ibm.com/webservices/InternationalizationContext">
<Locales>
<Locale>
<LanguageCode>en</LanguageCode>
<CountryCode>US</CountryCode>
</Locale>
</Locales>
<TimeZoneId>America/Chicago</TimeZoneId>
</p499:InternationalizationContext>
</soapenv:Header>
<soapenv:Body>
<sendJpegImage/>
</soapenv:Body>
<soapenv:Envelope>
------=_Part_0_247953397.1092086011970
Content-Type: image/jpeg
Content-Transfer-Encoding: binary
Content-ID: <jpegImageRequest=81380956150.1092086011880.IBM.WEBSERVICES@myhost1>
<...contents of jpeg image file...>
The following example displays the results from calling the JMS message toString method for a SOAP reply message:
JMSMessage class: jms_bytes JMSType: null JMSDeliveryMode: 2 JMSExpiration: 0 JMSPriority: 4 JMSMessageID: null JMSTimestamp: 0 JMSCorrelationID: ID:cdddb857f078a266eb9a972f110a134f0000000000000001 JMSDestination: null JMSReplyTo: null JMSRedelivered: false contentType: multipart/related; type="text/xml"; start="<961368106530.1092112854745.IBM.WEBSERVICES@yackerjr>"; boundary="----=_Part_0_1655006754.1092112854745" 0d0a2d2d2d2d2d2d3d5f506172745f305f313635353030363735342e313039323131323835343734 350d0a436f6e74656e742d547970653a20746578742f786d6c3b20636861727365743d5554462d38 ...
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