System and method for providing data sources for use in a multitenant application server environment
In accordance with an embodiment, an application server environment can include a plurality of partitions and a resource group template, which can be referenced by a resource group in one or more of the plurality of partitions. A data source configuration can be defined as part of the resource group template. The data source configuration can be overridden with attributes specific to a particular referencing partition. A data source subsystem can create a data source object in accordance with the overridden data source configuration, for use in creating connections to a database associated with the particular referencing partition, monitoring and diagnosing the data source object.
1. A system for supporting data sources in a multitenant application server environment, comprising:
a computer that includes a microprocessor;
an application server environment, executing on the computer, that includes an application server domain defined at runtime by a configuration file,
wherein the application server domain includes
a plurality of partitions, wherein each of the plurality of partitions represents a subdivision of the domain, wherein the subdivision provides a runtime for use by a tenant of the multitenant application server environment, and
a resource group template referenced by one or more of the plurality of partitions, wherein each of the one or more referencing partitions defines attributes specific to the referencing partition;
a data source configuration, defined as part of the resource group template that provides a template for creating data source objects;
a management bean, in the application server environment, that operates to override the data source configuration with attributes specific to a particular referencing partition; and
a data source subsystem that uses the overridden data source configuration to create a data source object, for use in creating connections to a database associated with the particular referencing partition.
2. The system of claim 1 , further comprising
a runtime bean component that generates statistics specific to the data source object for use in monitoring the data source object.
3. The system of claim 1 , wherein the data source subsystem implements a partition-aware interface, and upon receiving a callback function with a name of the particular referencing partition, write a state of a connection pool created using the data source object to a specified output stream.
4. The system of claim 1 , wherein the data source configuration is copied to a resource group in the particular referencing partition.
5. The system of claim 1 , wherein the attributes specific to the particular referencing partition include database connectivity attributes and attributes for use in turning the connections.
6. The system of claim 1 , wherein the data source object is configured to be accessed by resources in a different partition.
7. The system of claim 6 , wherein a cross-partition property on the data source object is used to bind the data source object to a Java Naming and Directory Interface (JNDI) tree for the data source to be visible in the different partition.
8. A method for supporting data sources in a multitenant application server environment, comprising:
configuring an application server environment executing on a computer including a microprocessor, wherein the application server environment includes an application server domain defined at runtime by a configuration file,
wherein the application server domain includes
a plurality of partitions, wherein each of the plurality of partitions represents a subdivision of the domain, wherein the subdivision provides a runtime for use by a tenant of the multitenant application server environment, and
a resource group template referenced by one or more of the plurality of partitions, wherein each of the one or more referencing partitions defines attributes specific to the referencing partition;
defining a data source configuration as part of the resource group template, wherein the data source configuration provides a template for creating data source objects;
overriding, using a management bean in the application server environment, the data source configuration with attributes specific to a particular referencing partition; and
creating, by a data source subsystem, a data source object using the overridden data source configuration, wherein the data source object is used to create connections to a database associated with the particular referencing partition.
9. The method of claim 8 , further comprising
providing a runtime bean component that generates statistics specific to the data source object for use in monitoring the data source object.
10. The method of claim 8 , wherein the data source subsystem implements a partition-aware interface, and upon receiving a callback function with a name of the particular referencing partition, write a state of a connection pool created using the data source object to a specified output stream.
11. The method of claim 8 , wherein the data source configuration is copied to a resource group in the particular referencing partition.
12. The method of claim 8 , wherein the attributes specific to the particular referencing partition include database connectivity attributes and attributes for use in turning the connections.
13. The method of claim 8 , wherein the data source object is configured to be accessed by resources in a different partition.
14. The method of claim 13 , wherein a cross-partition property on the data source object is used to bind the data source object to a Java Naming and Directory Interface (JNDI) tree for the data source to be visible in the different partition.
15. A non-transitory computer readable storage medium, including instructions stored thereon which when read and executed by one or more computers cause the one or more computers to perform the steps comprising:
configuring an application server environment executing on a computer including a microprocessor, wherein the application server environment includes an application server domain defined at runtime by a configuration file,
wherein the application server domain includes
a plurality of partitions, wherein each of the plurality of partitions represents a subdivision of the domain, wherein the subdivision provides a runtime for use by a tenant of the multitenant application server environment, and
a resource group template referenced by one or more of the plurality of partitions,
wherein each of the one or more referencing partitions defines attributes specific to the referencing partition;
defining a data source configuration as part of the resource group template, wherein the data source configuration provides a template for creating data source objects;
overriding, using a management bean in the application server environment, the data source configuration with attributes specific to a particular referencing partition; and
creating, by a data source subsystem, a data source object using the overridden data source configuration, wherein the data source object is used to create connections to a database associated with the particular referencing partition.
16. The non-transitory computer readable storage medium of claim 15 , further comprising
providing a runtime bean component that generates statistics specific to the data source object for use in monitoring the data source object.
17. The non-transitory computer readable storage medium of claim 15 , wherein the data source subsystem implements a partition-aware interface, and upon receiving a callback function with a name of the particular referencing partition, write a state of a connection pool created using the data source object to a specified output stream.
18. The non-transitory computer readable storage medium of claim 15 , wherein the data source configuration is copied to a resource group in the particular referencing partition.
19. The non-transitory computer readable storage medium of claim 15 , wherein the attributes specific to the particular referencing partition include database connectivity attributes and attributes for use in turning the connections.
20. The non-transitory computer readable storage medium of claim 15 , wherein the data source object is configured to be accessed by resources in a different partition.