use of org.drools.core.definitions.rule.impl.RuleImpl.SafeSalience in project drools by kiegroup.
the class MVELSalienceBuilder method build.
public void build(RuleBuildContext context) {
boolean typesafe = context.isTypesafe();
// pushing consequence LHS into the stack for variable resolution
context.getDeclarationResolver().pushOnBuildStack(context.getRule().getLhs());
try {
// This builder is re-usable in other dialects, so specify by name
MVELDialect dialect = (MVELDialect) context.getDialect("mvel");
Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());
MVELAnalysisResult analysis = (MVELAnalysisResult) dialect.analyzeExpression(context, context.getRuleDescr(), context.getRuleDescr().getSalience(), new BoundIdentifiers(DeclarationScopeResolver.getDeclarationClasses(decls), context));
context.setTypesafe(analysis.isTypesafe());
final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();
int i = usedIdentifiers.getDeclrClasses().keySet().size();
Declaration[] previousDeclarations = new Declaration[i];
i = 0;
for (String id : usedIdentifiers.getDeclrClasses().keySet()) {
previousDeclarations[i++] = decls.get(id);
}
Arrays.sort(previousDeclarations, SortDeclarations.instance);
MVELCompilationUnit unit = dialect.getMVELCompilationUnit(context.getRuleDescr().getSalience(), analysis, previousDeclarations, null, null, context, "drools", KnowledgeHelper.class, false, MVELCompilationUnit.Scope.EXPRESSION);
MVELSalienceExpression expr = new MVELSalienceExpression(unit, dialect.getId());
context.getRule().setSalience(KiePolicyHelper.isPolicyEnabled() ? new SafeSalience(expr) : expr);
MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData("mvel");
data.addCompileable(context.getRule(), expr);
expr.compile(data, context.getRule());
} catch (final Exception e) {
copyErrorLocation(e, context.getRuleDescr());
context.addError(new DescrBuildError(context.getParentDescr(), context.getRuleDescr(), null, "Unable to build expression for 'salience' : " + e.getMessage() + "'" + context.getRuleDescr().getSalience() + "'"));
} finally {
context.setTypesafe(typesafe);
}
}
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