Examples with Program org.projectnessie.cel.Program used on opensource projects

Example 1 with Program

use of org.projectnessie.cel.Program in project cel-java by projectnessie.

the class ConformanceServiceImpl method eval.

@Override
public void eval(EvalRequest request, io.grpc.stub.StreamObserver<EvalResponse> responseObserver) {
    try {
        Env env = newEnv(container(request.getContainer()), types(com.google.api.expr.test.v1.proto2.TestAllTypesProto.TestAllTypes.getDefaultInstance(), com.google.api.expr.test.v1.proto3.TestAllTypesProto.TestAllTypes.getDefaultInstance()));
        Program prg;
        Ast ast;
        switch(request.getExprKindCase()) {
            case PARSED_EXPR:
                ast = parsedExprToAst(request.getParsedExpr());
                break;
            case CHECKED_EXPR:
                ast = checkedExprToAst(request.getCheckedExpr());
                break;
            default:
                throw new IllegalArgumentException("No expression.");
        }
        prg = env.program(ast);
        Map<String, Object> args = new HashMap<>();
        request.getBindingsMap().forEach((name, exprValue) -> {
            Val refVal = exprValueToRefValue(env.getTypeAdapter(), exprValue);
            args.put(name, refVal);
        });
        // NOTE: the EvalState is currently discarded
        EvalResult res = prg.eval(args);
        ExprValue resultExprVal;
        if (!isError(res.getVal())) {
            resultExprVal = refValueToExprValue(res.getVal());
        } else {
            Err err = (Err) res.getVal();
            if (verboseEvalErrors) {
                System.err.printf("%n" + "Eval error (not necessarily a bug!!!):%n" + "  error: %s%n" + "%s", err, err.hasCause() ? (stacktrace(err.toRuntimeException()) + "\n") : "");
            }
            resultExprVal = ExprValue.newBuilder().setError(ErrorSet.newBuilder().addErrors(Status.newBuilder().setMessage(err.toString()))).build();
        }
        EvalResponse.Builder resp = EvalResponse.newBuilder().setResult(resultExprVal);
        responseObserver.onNext(resp.build());
        responseObserver.onCompleted();
    } catch (Exception e) {
        responseObserver.onError(io.grpc.Status.fromCode(io.grpc.Status.Code.UNKNOWN).withDescription(stacktrace(e)).asException());
    }
}

Example 2 with Program

use of org.projectnessie.cel.Program in project cel-java by projectnessie.

the class StringsTest method testExpression.

private static void testExpression(TestData testData) {
    Env env = Env.newCustomEnv(ProtoTypeRegistry.newRegistry(), Arrays.asList(Library.StdLib(), StringsLib.strings()));
    Env.AstIssuesTuple astIssue = env.parse(testData.expression);
    assertThat(astIssue.hasIssues()).isFalse();
    Env.AstIssuesTuple checked = env.check(astIssue.getAst());
    if (testData.isParseOnly()) {
        assertThat(checked.hasIssues()).isTrue();
        assertThat(checked.getIssues().toString()).contains(testData.getErr());
        return;
    } else {
        assertThat(checked.hasIssues()).isFalse();
    }
    Program program = env.program(astIssue.getAst());
    Program.EvalResult result = program.eval(new HashMap<>());
    if (testData.getErr() != null) {
        assertThat(result.getVal() instanceof Err).isTrue();
        assertThat(result.getVal()).extracting(Val::toString).isEqualTo(testData.getErr());
    } else {
        assertThat(result.getVal()).isEqualTo(BoolT.True);
    }
}