- Describe adapter concepts and framework
- Describe Technology adapters: File, Database, JMS, etc
- Describe Applications Adapters Ebiz suite,Peoplesoft, Siebel, etc
- Explain adapter run-time configuration
- Explain adapter design-time configuration
- References
Describe adapter concepts and framework
Overview
* Oracle Adapters use JCA technology to connect external systems to the Oracle SOA Suite.* Based on open standards such as JCA, XML, WSDL.
* Assembled with SCA model.
Adapter Types
* Technology adapters- Installed as part of Oracle Fusion Middleware.
* Legacy adapters
* Packaged-application adapters
* Oracle application adapters
Service Types
Request-Response (Outbound Interaction) Service
* Support synchronous request-response service.* Used to:
- CRUD back-end data
- call back-end workflows and transactions
Event Notification (Inbound Interaction) Service
* Support asynchronous event-notification service.* Listen or poll for back-end event changes.
* Used to keep track of back-end events.
Metadata Service
Technology Adapters
* Files* FTP
* Sockets
* Database Adapter
* Java Messaging Service (JMS)
* BAM
* Advanced Queuing (AQ)
* Message Queuing (MQ) Series
* See here for details.
Architecture
Design-Time Components
* Use JDev to generate adapter metadata.- Binding config files consist of J2CA-centric XML markup.
- Binding config files used by JCA Binding Component to seamlessly integrate the JCA 1.5 resource adapter with Oracle Fusion Middleware.
Run-Time Components
* Adapter run-time component is the JCA 1.5 resource adapter for the specific back-end application.* Deployed in JCA container of the WebLogic Server.
* Integration with OFM is achieved through the JCA Binding Component, which converts Web service messages to JCA interactions and back. See here for more details.
Deployment
* Technology adapters are deployed as JCA 1.5 resource adapters within the same WebLogic Server container as that of OFM.* JNDI names are used at design time with JDev. Need to setup JNDI at deployment.
Legacy Adapters
* Tuxedo* CICS
* VSAM
* IMS/TM
* IMS/DB
Architecture
Oracle Connect
* Oracle Connect is a component that resides on the legacy and mainframe platforms.* It consists of native adapters for communicating with the mainframe application and data stores.
* It consists of:
- Server processes: process client requests.
- Native adapters: to communicate with Tuxedo and IMS-TM txn systems.
- Daemon: RPC-based listener that manages and maintains multiple server configurations.
- Repository: one repository per Oracle Connect instance to store XML-based schema and config info.
Oracle Studio
* Oracle Studio is a design time tool for configuring the Oracle AS Adapters for mainframes.* Enables you to configure the services, events, and connection information for native adapters.
* Enables you to do management and monitoring of Oracle Connect.
* Based on Eclipse and available on Windows platform only.
Packaged-Application Adapters
* Available as part of the OracleAS Adapters CD.Packaged-Application Adapters
* SAP R/3* PeopleSoft
* Siebel
* J.D. Edwards OneWorld
Architecture
Oracle Adapter for Oracle Applications
* a.k.a E-Business Suite AdapterDescribe Technology adapters: File, Database, JMS, etc
* See here for a list of adapter related books.* Provides comprehensive, bidirectional, multimodal, synchronous, and asynchronous connectivity to Oracle Applications.
File/FTP Adapter
Supported operations
* Read File* Write File
* Synchronous Read File
* List Files
Features
* File formats- XML
- Delimited
- Fixed positional
- Binary
- COBOL Copybook data
- opaque (e.g. JPEGs)
* FTP Servers
- Supports most RFC 959 compliant FTP servers on all platforms.
- Supports SFTP server version 4 or later.
* Inbound and outbound interactions
* File debatching: publish messages in a specific number of batches.
* File ChunkedRead: uses an invoke activity within a while loop to process the target file (usually large file).
* File Sorting
- Use a synchronous operation
- Add the following property to the inbound JCA file:
<property name="ListSorter" value="oracle.tip.adapter.file.inbound.listing.TimestampSorterAscending"/> <property name="SingleThreadModel" value="true"/>* Dynamic outbound directory and file name specification.
* Security
* Nontransactional
* Proxy support:
- make sure proxy server supports FTP traffic through HTTP connection.
- only passive data connections are supported.
* No payload support
- select Do not read file content option.
* Large payload support
- select Read File as Attachment option.
* File based triggers
* pre-processing and post-processing of files
- Use pipeline and valves
* Error handling
* Threading Model
- default threading model:
* Performance tuning
- use knobs to throttle the inbound and outbound operations.
- see here for more details.
* High availability
* Multiple directories
- Process files recursively
- Use ignoreListingErrors property to ignore folder permission issues.
* Append mode
- Not supported for SFTP scenarios
* Securing Enterprise Information System Credentials
- Use WebLogic Admin Console to config.
Socket Adapter
* Used by Mediator and BPEL to read and write data over TCP/IP sockets.* Oracle Socket Adapter is a JCA 1.5 compliant adapter for modeling standard or nonstandard protocols for communication over TCP/IP sockets.
* You can use an Oracle Socket Adapter to create a client or a server socket, and establish a connection.
* The data that is transported can be text or binary.
* Communication modes:
- Inbound synchronous request/response
- Outbound sync request/response
- Inbound receive
- Outbound invoke
JMS Adapter
* Is based on JMS version 1.0.2b* Is a generic Oracle JMS Adapter (works with any JMS provider).
* Supports JMS topics and queues.
* Supports byte, text, and map message types.
* Supports JMS headers and properties.
* Supports jca.message.encoding property.
* Supports the JMS message selector.
* Is DOM2 compliant.
* Supports normalized message.
* Supports specifying a durable JMS subscriber.
* Supports persistent and nonpersistent modes of a JMS publisher.
* Support three JMS types of acknowledgments:
- DUPS_OK_ACKNOWLEDGE
- AUTO_ACKNOWLEDGE
- CLIENT_ACKNOWLEDGE
* Supports tracking message size.
* Supports MapMessage Data Type.
* Supports Enterprise Information System (EIS) Credentials.
* Supports Streaming Large Payload.
* Supports Transactions.
* Supports Error Handling.
* Supports Multiple Consumer Threads.
* Supports Performance Tuning
* Does not support connection retry functionality for MQ provider.
* Does not support outbound retry functionality for AQJMS on Solaris.
Database Adapter
* Enables Oracle SOA Suite and Oracle Fusion Middleware to communicate with database end points.* Is a JCA 1.5 connector, which runs on the Oracle Application Server.
* Relies on an underlying JDBC connector/driver to enact the database communication.
* Non-programmatic (unlike JDBC).
AQ Adapter
* The Oracle AQ Adapter is both a producer and a consumer of AQ messages.* The enqueue operation is exposed as a JCA outbound interaction.
* The dequeue operation is exposed as a JCA inbound interaction.
* The Oracle AQ Adapter supports ADT (Oracle object type), XMLType, and RAW queues as payloads. It also supports extracting a payload from one ADT member column.
AQ Adapter Features
* Enqueue-Specific Features (Message Production):- Correlation Identifier which can be used to retrieve specific messages.
- Multi-consumer Queue.
- Message priority.
- Time specification and scheduling (delay interval and expiration time).
* Dequeue and Enqueue Features:
- Poll option.
- Notification option.
- Mutliconsumer queue.
- Navigation of messages for dequeuing (use correlation id as dequeue order).
- Retries with delays (message is moved to exception queue if retries failed).
- Rule based suscription.
- Oracle AQ Adapter header properties.
- Dequeue condition.
MQ Adapter
* The Oracle MQ Series Adapter enables applications to- connect to MQ Series queue managers
- place MQ Series messages on queues
- or remove MQ Series messages from queues.
* The Oracle MQ Series Adapter provides all native MQ Series functionalities:
- Supports Positive Action Notification (PAN) and Negative Action Notification (NAN).
- Supports report messages such as confirmation on delivery, confirmation on arrival, exception report, and expiry report.
- Supports sending unwanted or corrupted messages to a dead-letter queue.
- Provides advanced filter options, such as filtering message belonging to a group.
- Faster and easier to use than Oracle JMS Adapter.
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