International Business Machines Corporation

Kenneth L Astl

Kai Mike Zhang

Subramanyam Agraharam Gooty

Arul Sundaramurthy

Manoj Khangaonkar

Edwin V Sapugay

Atul Ravindra Daherkar

Larry Hwang-Chi Tung

Provided are a system and article of manufacture for duplicate message elimination during recovery when multiple threads are delivering messages from a message store to a destination queue. A plurality of message threads process operations to deliver messages from a message store to a destination queue, wherein one message thread processes one message. An in-doubt list is generated identifying messages that are in-progress of being delivered form the message store to the destination queue by the message threads. One message thread processing one message adds an entry including the message identifier and the thread identifier to a monitor queue. The message thread further adds the message to the destination queue. A recovery thread is generated in response to detecting a failure in the processing by the threads to deliver the messages from the message store to the destination queue. The recovery thread processes the messages indicated in the in-doubt list and compares with message identifiers in the monitor queue to prevent duplicate delivery of messages to the destination queue.

System and article of manufacture for duplicate message elimination during recovery when multiple threads are delivering messages from a message store to a destination queue

A method, system, and computer program code for integrating components with different interfaces in an enterprise application integration environment. When an enterprise application is assembled, a user may try to wire a component to another component in the enterprise. However, if the reference on the source component does not match the interface on the target component, the components cannot be wired together. In this situation, the user is prompted to introduce an interface mediation component between the source and target application components. The mediation component comprises an interface matching the reference on the source component and a reference matching the interface on the target component. The mediation component mediates the different interfaces at runtime by binding an operation in the source component to an operation in the target component, and performing a parameter mediation of parameters in the first operation to parameters in the second operation.

Generic framework for integrating components with different interfaces in an enterprise application integration environment

Provided is a method for duplicate message elimination A plurality of message threads process operations to deliver messages from a message store to a destination queue. An in-doubt list is generated identifying messages that are in-progress of being delivered from the message store to the destination queue by the message threads. One message thread processing one message adds an entry including the message identifier to a monitor queue. The message thread further adds the message to the destination queue. A recovery thread is generated in response to detecting a failure in the processing by the threads to deliver the messages from the message store to the destination queue. The recovery thread processes the messages indicated in the in-doubt list and compares with message identifiers in the monitor queue to prevent duplicate delivery of messages to the destination queue.

Duplicate message elimination during recovery when multiple threads are delivering messages from a message store to a destination queue

Growing community of inventors

San Antonio, TX, United States of America

Kenneth L Astl