Examples with RuleClassBuilder org.drools.compiler.rule.builder.RuleClassBuilder used on opensource projects

Example 1 with RuleClassBuilder

use of org.drools.compiler.rule.builder.RuleClassBuilder in project drools by kiegroup.

the class JavaDialect method addRule.

/**
 * This will add the rule for compiling later on.
 * It will not actually call the compiler
 */
public void addRule(final RuleBuildContext context) {
    final RuleImpl rule = context.getRule();
    final RuleDescr ruleDescr = context.getRuleDescr();
    RuleClassBuilder classBuilder = context.getDialect().getRuleClassBuilder();
    String ruleClass = classBuilder.buildRule(context);
    // return if there is no ruleclass name;
    if (ruleClass == null) {
        return;
    }
    // The compilation result is for the entire rule, so difficult to associate with any descr
    addClassCompileTask(this.pkg.getName() + "." + ruleDescr.getClassName(), ruleDescr, ruleClass, this.src, new RuleErrorHandler(ruleDescr, rule, "Rule Compilation error"));
    JavaDialectRuntimeData data = (JavaDialectRuntimeData) this.pkg.getDialectRuntimeRegistry().getDialectData(ID);
    for (Map.Entry<String, String> invokers : context.getInvokers().entrySet()) {
        final String className = invokers.getKey();
        // Check if an invoker - returnvalue, predicate, eval or consequence has been associated
        // If so we add it to the PackageCompilationData as it will get wired up on compilation
        final Object invoker = context.getInvokerLookup(className);
        if (invoker instanceof Wireable) {
            data.putInvoker(className, (Wireable) invoker);
        }
        final String text = invokers.getValue();
        final BaseDescr descr = context.getDescrLookup(className);
        addClassCompileTask(className, descr, text, this.src, new RuleInvokerErrorHandler(descr, rule, "Unable to generate rule invoker."));
    }
    // setup the line mappins for this rule
    final String name = this.pkg.getName() + "." + StringUtils.ucFirst(ruleDescr.getClassName());
    final LineMappings mapping = new LineMappings(name);
    mapping.setStartLine(ruleDescr.getConsequenceLine());
    mapping.setOffset(ruleDescr.getConsequenceOffset());
    this.pkg.getDialectRuntimeRegistry().getLineMappings().put(name, mapping);
}