公开(公告)号：CA2255023C

公开(公告)日：2004-04-13

申请号：CA2255023

申请日：1998-11-30

Applicant: IBM CANADA

Inventor： RYMAN ARTHUR G ,  FRAENKEL MICHAEL L ,  YUEN SIU C ,  YU PATSY S H ,  GERKEN CHRISTOPHER H

IPC: G06F11/34 ,  G06F11/36 ,  G06F9/44 ,  G06F11/30 ,  G06F9/45

Abstract: This invention describes a system and method for monitoring the execution of hybrid source code such as JavaServer Pages (JSP) code. The system comprises a page compiler, which is called by a server for translating JSP code into a servlet for execution by the server. The page compiler during translation of the JSP code inserts instrumentation in the compiled JSP code for supporting execution tracing by an execution monitor. The execution monitor receives outputs from the page compiler, the servlet and the raw JSP code for displaying selected information about t he execution of the JSP code to the developer on a graphical user interface. The execution monitor thus allows the developer to view the correlation between the JSP code, the servlet code and the HTML code that is generated by the servlet.

公开(公告)号：PL182978B1

公开(公告)日：2002-05-31

申请号：PL32278296

申请日：1996-07-11

Applicant: IBM

Inventor： BITTINGER REED R ,  FRAENKEL MICHAEL L ,  HOUSEL BARRON C ,  LINDQUIST DAVID B

IPC: G06F13/00 ,  G06F17/30 ,  G06F12/00 ,  H04J3/00 ,  H04L29/06

Abstract: A method, apparatus and computer program product for caching data received from a first application and to be provided to a second application in response to a request from the second application. The method apparatus and computer program products including storing a data stream to be received from the first application and to be provided to the second application in a cache to create a client cache entry corresponding to the request from the second application. The time of creation of a client cache entry is also stored to create a client cache entry time record. Requests from the second application are interrogated to determine if a client cache entry exists corresponding to the request. The client cache entry time record for the client cache entry corresponding to the request from the second application is evaluated to determine if the client cache entry corresponding to the request from the second application was created within a predetermined client coherency time interval prior to the second application requesting the information. The client cache entry is supplied to the second application in response to the request if a client cache entry for the request from the second application was created within a predetermined client coherency time interval prior to the second application requesting the information.

公开(公告)号：PL180619B1

公开(公告)日：2001-03-30

申请号：PL32283096

申请日：1996-07-11

Applicant: IBM

Inventor： BITTINGER REED R ,  FRAENKEL MICHAEL L ,  HOUSEL BARRON C ,  LINDQUIST DAVID B

IPC: G06F13/00 ,  G06F15/00 ,  G06F17/30 ,  H04L29/06 ,  H04L29/08 ,  G06F12/00 ,  H04Q5/00

Abstract: A method, apparatus and computer program product for reducing the data transmitted over an external communication link from a first application resident in a first computer to a second application resident in a second computer. The method, apparatus and computer program product include storing a data stream from the first application to be provided to the second application in response to a request from the second application in a cache resident in the first computer to create a server base cache entry and in a cache resident in the second computer to create a client base cache entry. Requests from the second application are interrogated to determine if a client base cache entry corresponding to the interrogated request exists and to determine if a server base cache entry corresponding to the interrogated request exists. The response data stream is intercepted prior to transmission of the response on the external communication link and compared to the server base cache entry to provide difference data corresponding to the difference between the intercepted response and the server base cache entry. The difference data is sent over the external communication link and acquired by the second computer which reconstructs the response data stream by combining the client base cache entry with the difference data to create a response data stream which is provided to the second application.

公开(公告)号：PL180608B1

公开(公告)日：2001-03-30

申请号：PL32281796

申请日：1996-07-11

Applicant: IBM

Inventor： BITTINGER REED R ,  FRAENKEL MICHAEL L ,  HOUSEL BARRON C ,  LINDQUIST DAVID B

IPC: G06F12/00 ,  H04L29/08 ,  G06F13/00 ,  H04Q5/00 ,  H04M3/30

Abstract: A method, apparatus and computer program product for reducing the data transmitted over an external communication link using the TCP protocol from a first application resident in a first computer and to a second application resident in a second computer. The method, apparatus and computer program product include establishing a first virtual socket in the first computer in response to each connection request by the first application for receiving request data originated by the first application. A first real socket in the first computer and a second real socket in the second computer are established to connect the first computer to the second computer over the external communication link and are maintained until the request data has been provided to the second application. In the second computer a second virtual socket is established for each connection request by the first application wherein the second virtual socket corresponds to a first virtual socket established in the first computer in response to a connection request by the first application. Request data associated with a first virtual socket is multiplexed onto the first real socket and transmitted over the external communication link utilizing the TCP protocol. The multiplexed request data is received from the external communication link by the second real socket and demultiplexed. The demultiplexed request data is provided to the corresponding second virtual socket which provides the request data to the second application.

公开(公告)号：CA2255023A1

公开(公告)日：2000-05-30

申请号：CA2255023

申请日：1998-11-30

Applicant: IBM CANADA

Inventor： RYMAN ARTHUR G ,  YU PATSY S H ,  FRAENKEL MICHAEL L ,  GERKEN CHRISTOPHER H ,  YUEN SIU C

IPC: G06F11/34 ,  G06F11/36 ,  G06F9/44 ,  G06F11/30 ,  G06F9/45

Abstract: This invention describes a system and method for monitoring the execution of hybrid source code such as JavaServer Pages (JSP) code. The system comprises a page compiler, which is called by a server for translating JSP code into a servlet for execution by the server. The page compiler during translation of the JSP code inserts instrumentation in the compiled JSP code for supporting execution tracing by an execution monitor. The execution monitor receives outputs from the page compiler, the servlet and the raw JSP code for displaying selected information about the execution of the JSP code to the developer on a graphical user interface. The execution monitor thus allows the developer to view the correlation between the JSP code, the servlet code and the HTML code that is generated by the servlet.