6. Using File and Email Transports
by Eric Elzinga, Mischa Kölliker, Jan van Zoggel, Edwin Biemond, Guido Schmutz
Oracle Service Bus 11g Development Cookbook
- Oracle Service Bus 11g Development Cookbook
- Table of Contents
- Oracle Service Bus 11g Development Cookbook
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Creating a basic OSB service
- Introduction
- Creating a new OSB project
- Defining a folder structure for the OSB project
- Importing an already existing project into Eclipse OEPE
- Creating a business service to call an external SOAP-based web service
- Generating a simple pass-through proxy service
- Deploying the OSB configuration from Eclipse OEPE
- Testing the proxy service through the OSB console
- Testing the proxy service through soapUI
- Creating proxy service with a WSDL based interface
- Using a routing action to statically route to another service
- Adding an operational branch to support the different WSDL operations of the proxy service
- Using an XQuery transformation to map between the different data models of the services
- 2. Working Efficiently with OSB Artifacts in Eclipse OEPE
- Introduction
- Setting up an OSB project to work with JCA adapters
- Using context menu to add nodes and actions to message flow
- Moving nodes/actions in Eclipse OEPE by drag-and-drop
- Copying nodes/actions from one place to another
- Moving artifacts inside the same OSB project
- Copying artifacts from one project into another
- Debugging services through Eclipse OEPE
- 3. Messaging with JMS Transport
- Introduction
- Sending a message to a JMS queue/topic
- Changing JMS Transport message headers and properties at runtime
- Consuming messages from a JMS queue
- Consuming messages from a topic with non-durable/durable subscription
- Consuming messages from a JMS queue/topic selectively
- Accessing JMS Transport headers and properties in message flow
- Using request-response messaging with JMS
- Using QBrowser Admin GUI for accessing JMS queues/topics
- Testing JMS with soapUI
- 4. Using EJB and JEJB transport
- Introduction
- Exposing an EJB session bean as a service on the OSB using the EJB transport
- Using JNDI Provider to invoke an EJB session bean on a remote WebLogic domain
- Using converter class with EJB transport to help converting data types
- Exposing an EJB session bean as an EJB on the OSB using the JEJB transport
- Manipulating the response of the JEJB transport by a Java Callout action
- 5. Using HTTP Transport
- 6. Using File and Email Transports
- 7. Communicating with the Database
- Introduction
- Using DB adapter to read from a database table
- Using DB adapter to execute a custom SQL statement against the database
- Using the DB adapter to update a database table
- Using DB adapter to poll for changes on a database table
- Using the AQ adapter to consume messages from the database
- Using the AQ adapter to send messages to the database
- 8. Communicating with SOA Suite
- 9. Communication, Flow Control, and Message Processing
- Introduction
- Using Service Callout action to invoke a service
- Using the Publish action to asynchronously invoke a service
- Using the Java Callout action to invoke Java code
- Using the Java Callout action with XMLBeans
- Using custom XPath functions
- Using the For Each action to process a collection
- Using dynamic Split-Join to perform work in parallel
- Using the Validate action to perform message validation
- Enabling/disabling a Validate action dynamically
- Creating private proxy service
- 10. Reliable Communication with the OSB
- 11. Handling Message-level Security Requirements
- Introduction
- Preparing OSB server to work with OWSM
- Configuring OSB server for OWSM
- Securing a proxy service by Username Token authentication
- Securing a proxy service by protecting the message
- Securing a proxy service by using Username Token authentication and protecting the message
- Securing a proxy service by using certificate authentication and protecting the message
- Securing a proxy service with authorization through Message Access Control
- Using JDeveloper to test a secured service
- Calling a secured service from OSB
- 12. Handling Transport-level Security Requirements
- Index
In this chapter, we will cover:
- Using the File or FTP Transport to trigger a proxy service upon arrival of a new file
- Using the File JCA adapter to read a file within the message flow
- Using the File or FTP Transport to write a file
- Using Email Transport to receive e-mail
- Using Email Transport to send e-mail
In this chapter, we will cover the so called Poll-based transports, the File or FTP Transport, the Email Transport, as well as the File JCA adapter.
As the name implies, the File or FTP Transport can be used to do operations on files. When using the File Transport, the file needs to be local to the OSB Server or reachable via a file share, whereas when using the FTP Transport , the file can be on any FTP server reachable from the OSB. When using these transports on a proxy service, then the given location will be constantly polled for new files, and each file will be processed by the message flow of the proxy service. When the two transports are used on a business service, then a file will be written to the configured location upon invoking the business service.
The File JCA adapter allows treating the operation on a file as a service, which also allows for the reading of a file through a service invocation in the message flow of a proxy service.
The Email Transport supports both, the receiving as well as the sending of e-mails, with or without attachments. Using the Email Transport with a proxy service will consume new e-mails from an e-mail server whereas using the Email Transport on a business service will send an e-mail through the given e-mail server.
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