Software mechanism for efficient compiling and loading of java server pages (JSPs)
View Patent ↗Method and apparatus for processing java server pages (JSPs) which reduces the delays resulting from a first time invocation of a JSP. One embodiment provides a method for processing JSPs for a java virtual machine (JVM), comprising: selecting one or more JSP files to be processed for the JVM; translating the JSP files to java source code files; inserting quick exit codes to java source code files; compiling java source code files to servlet class files; and loading servlet class files into the JVM.
1. A method for processing Java® server pages, comprising:
selecting at least one Java® server page to be processed, prior to receiving any client requests for the at least one Java® server page;
translating the at least one Java® server page into a Java® source code file;
inserting a quick exit code into the Java® source code file;
compiling the Java® source code files to generate a servlet;
loading the servlet into a memory of a virtual machine and
invoking the servlet on the virtual machine, wherein the quick exit code causes the servlet to exit before a service method associated with the servlet is invoked.
2. The method of claim 1 , wherein the Java® server pages are processed during an initialization of a Web application.
3. The method of claim 1 , further comprising selecting the at least one Java® server page by selecting server pages which exceed a size threshold value.
4. The method of claim 1 , further comprising generating a direct executable via just in time optimization.
5. The method of claim 1 , further comprising spawning a plurality of threads to process the selected Java® server pages.
6. The method of claim 5 , wherein a thread count initialization parameter specifies a number of threads to be spawned.
7. A computer readable medium containing a program which, when executed, performs an operation, comprising:
selecting at least one Java® server page to be processed;
translating the at least one Java® server page into a Java® source code file;
inserting a quick exit code into the Java® source code file;
compiling the java® source code files to generate a servlet;
loading the servlet into a memory of a virtual machine; and
invoking the servlet on the virtual machine, wherein the quick exit code causes the servlet to exit before a service method associated with the servlet is invoked.
8. The computer readable medium of claim 7 , wherein the operation further comprises selecting the at least one Java® server page by selecting server pages file which exceed a size threshold value.
9. The computer readable medium of claim 7 , wherein the operation further comprises generating a direct executable via just in time optimization.
10. The computer readable medium of claim 7 , wherein the operation further comprises spawning a plurality of threads to process the selected Java® server pages.
11. A computer for processing one or more Java® server pages, comprising:
an application server computer comprising one or more processors and a memory, the memory containing a Java® server pages processor and a virtual machine, wherein the Java® server pages processor is configured to:
select at least one of the Java® server pages to be processed;
translate the Java® server page file into a Java® source code file;
insert quick exit codes into the Java source code file;
compile the Java® source code file to generate a servlet;
selectively load one or more servlets generated from the one or more Java® server pages into a memory of the virtual machine prior to a user request for one of the Java® server pages; and
invoke the servlet on the virtual machine, wherein the quick exit codes cause the servlet to exit before a service method associated with the servlet is invoked.
12. The computer of claim 11 , wherein the memory further comprises a servlet engine for initializing a web application which utilizes the one or more Java™ server pages.
13. The computer system of claim 12 , wherein the servlet engine is configured to spawn a plurality of threads to process the Java™ server pages.
14. The computer of claim 11 , wherein the Java® server pages processor is further configured to select the Java® server pages by selecting a server pages which exceed a size threshold value.
15. The computer of claim 11 , wherein the Java® server pages processor is further configured to generate a direct executable via just in time optimization.
16. A method for processing Java® server pages, comprising:
initializing a web application that includes a virtual machine;
selecting at least one Java® server pages to be processed for the virtual machine, wherein the at least one Java® server pages is selected by selecting server pages which exceed a size threshold value;
translating the Java® server pages into a Java® source code file;
inserting a quick exit code into the Java® source code file;
compiling the Java® source code file to generate a servlet;
loading the servlet into a memory of the virtual machine; and
invoking the servlet on the virtual machine, wherein the quick exit code causes the servlet to exit before a service method associated with the servlet is invoked.
17. The method of claim 16 , further comprising generating a direct executable via just in time optimization.
18. The method of claim 16 , further comprising spawning a plurality of threads to process the selected Java® server pages.