Abstract: A system and method of using metrics to control throttling and swapping in a message processing system is provided. A workload status of a message processing system is determined, and the system polls for a new message according to the workload status. The message processing system identifies a blocked instance and calculates an expected idle time for the blocked instance. The system dehydrates the blocked instance if the expected idle time exceeds a predetermined threshold.

Abstract: A system and method of processing a message in an asynchronous architecture is provided. In the method, a determination is made that a response to a message sent by an instance of software code is to be received, where the response indicates whether the message succeeded or failed. Another determination is made as to whether the response has been received. If the response has not been received, the instance of the software code is stored in memory, thereby suspending the instance. The response is received, the instance resumed and the response is processed.

Abstract: An XML digital signature standard is applied to an XML document to sign it. The XML digital signature is an XML fragment with a specified schema that includes (a) data to describe how the signature should be calculated (e.g., digest methods, filters, and data sources) and (b) actual signature data (e.g., digests and signature values). The data describing how the signature should be calculated (i.e., the “group (a)” data) is placed inside an XML digital signature template, which is then used (e.g., by an API (application programming interface)) to create the actual digital signature containing the “group (b)” data.

Abstract: A method is disclosed for querying a hierarchically structured document embodied in a data stream. A query specifies desired data to be obtained from the document and reference data from which the desired data may be determined by way of reference thereto. The reference data specified in the query is verified to occur in the passing data stream prior to the desired data, and the passing data stream is examined. The reference data in the passing data stream is located and thereafter, and with reference to the located reference data, the desired data in the passing data stream is located and outputted.