GitHub user Leemoonsoo opened a pull request:
https://github.com/apache/zeppelin/pull/1951
[ZEPPELIN-2020] Invoke method from resource
### What is this PR for?
This PR provides a way to invoke method remotely against the resource in
the resource pool.
This will be particularly useful the object in the resource pool is
non-serializable (like jdbc connection, spark dataframe).
This PR extends data access API of Resource from
```
class Resource {
// get object
public Object get();
}
```
to
```
class Resource {
// get object
public Object get()
// call method of object and get return value
public Object invokeMethod(String methodName, Class [] paramTypes, Object
[] params);
// call method of object and save return value into resourcepool
public Object invokeMethod(String methodName, Class [] paramTypes, Object
[] params, String returnResourceName);
}
### What type of PR is it?
Feature
### Todos
* [x] - API for remote method invocation and get result
* [x] - API for remote method invocation and store result into resource pool
* [x] - Unittest
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-2020
### How should this be tested?
Unittest included
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/Leemoonsoo/zeppelin
invoke_method_from_resource
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1951.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1951
----
commit 74b502e9c89aebe09c932f0798817a1c5398bead
Author: Lee moon soo <[email protected]>
Date: 2017-01-26T00:39:42Z
Support method invocation on the resource in local,remote resource pool
commit a0adbde37f5aa79ef63a422e5a38ca95f8127f2a
Author: Lee moon soo <[email protected]>
Date: 2017-01-26T02:12:03Z
make RemoteResource.invokeMethod returns Resource when return resource name
is specified
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