从Pentaho Kettle调用Java库

Question

I have developed a java class exported into a .jar library that will be called by a Pentaho Kettle 'modified java script'. The .jar is compiled in Eclipse with JDC Compliance level 1.7.

When I try to use this class inside a 'modified java script', I get the error: ReferenceError: “xeroCallPackage” is not defined. I have tried lots of things without much luck so far.

My file xeroCallPackage.jar is in the path with the other *.jar files in Pentaho (..\\data-integration\\lib)

For info:

The stripped down (for simplicity) java library code is here:

package xeroCallPackage;

import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collections;
import java.util.Map;

public class xeroURLCall {

    public String getResponse(String CONSUMER_KEY, String CONSUMER_PRIVATE_KEY, String URL) throws IOException, OAuthException, URISyntaxException { 

        // stripped out code here
        return response.readBodyAsString();
    }

}

The stripped down Pentaho 'modified java script' is here:

var CONSUMER_KEY = "ffffff";
var CONSUMER_PRIVATE_KEY = "aaaaa";
var URL = "https://gggggggg.rrrrr.wwww";

var ResponseAsString;

ResponseAsString = new     xeroCallPackage.xeroURLCall.getResponse(CONSUMER_KEY,CONSUMER_PRIVATE_KEY,URL);

Answer 1

You will either have to have org as top-most package or prefix the fully qualified name of your class with Packages .

So in your case the fully qualified name of your class that can be used for calling from Spoon will be Packages.xeroCallPackage.xeroURLCall

Apart from that the supplied JavaScript code won't work (but maybe that's just because of the stripped down code). You'd have to create a xeroURLCall object first and then call the getResponse method on that object:

var call = new Packages.xeroCallPackage.xeroURLCall(...);
var responseAsString = call.getResponse(CONSUMER_KEY,CONSUMER_PRIVATE_KEY,URL);