Didier, thanks for the reply!
1. I created a wrapper function like this: (defn -score [data context]
(score data context))
2. I tried your suggestion but got an error. Here's the current state:
The JS calling code:
function genFixture () {
return new Array(12).fill(parseFloat(Math.random().toFixed(2)));
}
console.log("Generating fixtures...");
var data = genFixture();
var contex = new Array(10).fill(1);
context.forEach((d,i) => { context[i] = genFixture(); });
// This produces, for example, the following fixtures:
// data: [ 0.89, 0.89, 0.89, 0.89, 0.89, 0.89, 0.89, 0.89, 0.89, 0.89,
0.89, 0.89 ]
// context: [
// [ 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35,
0.35 ],
// [ 0.85, 0.85, 0.85, 0.85, 0.85, 0.85, 0.85, 0.85, 0.85, 0.85, 0.85,
0.85 ],
// ...
// [ 0.31, 0.31, 0.31, 0.31, 0.31, 0.31, 0.31, 0.31, 0.31, 0.31, 0.31,
0.31 ]]
const java = require('java');
java.classpath.push("./java/alto.score-0.2.0-standalone.jar");
console.log("Importing class ...");
var score = java.import('alto.score');
console.log("Attempting to run score.scoreSync(data, context)");
try {
var s = score.scoreSync(data, context);
} catch (e) {
console.log("Got an error:", e);
}
The resulting output looks like this:
Generating fixtures...
Importing class ...
Attempting to run score.scoreSync(data, context)
Got an error: Error: Could not find method "score([Ljava.lang.Double;,
[Ljava.lang.Object;)" on class "class alto.score". Possible matches:
public static java.util.List
alto.score.score(java.util.List,java.util.List)
An error like this was how I came up with the original signature (that
didn't work).
In reading more of the node-java docs, I saw an example that reads:
var list1 =
java.newInstanceSync("java.util.ArrayList");console.log(list1.sizeSync()); //
0list1.addSync('item1');console.log(list1.sizeSync()); // 1
Which leads me to the idea that I may need to create the java.lang.List
object you recommended in the JS side, populate it, then pass that as the
argument into the scoring function. I'm working on that now, but don't
have anything to report yet.
Thanks again,
-Sir
On Sunday, August 6, 2017 at 4:49:25 PM UTC-4, Didier wrote:
>
> Can you try:
>
> :methods [#^{:static true} [score [java.util.List java.util.List]
> java.util.List]]
>
> This says your score function takes two List arguments and returns a list.
>
>
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