/**
* Compiles the given rule strings into a single rulebase
*
* @param rules
* @return
* @throws Exception
*/
public static RuleBase compile(List<String> rules) throws Exception {
Properties properties = new Properties();
properties.setProperty("drools.dialect.java.compiler", "JANINO");
properties.setProperty("drools.dialect.default", "java");
properties.setProperty("drools.dialect.java.compiler.lnglevel", "1.5");
// properties.setProperty("drools.dump.dir", "/tmp");
// log.debug("drools.dump.dir value is set to " + dumpDir);
PackageBuilderConfiguration conf = new PackageBuilderConfiguration(properties);
PackageBuilder builder = new PackageBuilder(conf);
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
for (String rule : rules) {
StringReader drl = new StringReader(rule);
builder.addPackageFromDrl(drl);
PackageBuilderErrors errors = builder.getErrors();
for (DroolsError error : errors.getErrors()) {
log.warn(error);
}
}
ruleBase.addPackage(builder.getPackage());
return ruleBase;
}
