synchronized StatelessSession getSession(final RulesData rules, final File folder)
throws Exception {
// if (!MiscUtil.equals(rules.getModified(), timestamp)) {
// session = null;
// }
if (session != null) {
return session;
}
ClassLoader oldCl = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(RuleEngine.class.getClassLoader());
PackageBuilder builder = new PackageBuilder();
StringBuilder script = new StringBuilder();
rules.buildScript(script);
if (LOG.isDebugEnabled()) {
LOG.debug("compiling rules script:\r\n" + script);
}
builder.addPackageFromDrl(new StringReader(script.toString()));
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage(builder.getPackage());
session = ruleBase.newStatelessSession();
LOG.debug("(re-)built rules for " + rules.getUid());
timestamp = rules.getModified();
} finally {
Thread.currentThread().setContextClassLoader(oldCl);
}
save(folder);
return session;
}
public void execute(final RulesData rules, final List<? extends RuleProxy<?, ?>> data)
throws Exception {
long timing = System.currentTimeMillis();
ExecutionSetEntry entry;
synchronized (entries) {
entry = (ExecutionSetEntry) entries.get(rules.getUid());
if (entry == null) {
entry = ExecutionSetEntry.load(folder, rules.getUid());
if (entry == null) {
entry = new ExecutionSetEntry(rules.getUid());
}
entries.put(entry.getRulesUid(), entry);
}
}
entry.getSession(rules, folder).execute(data);
// MiscUtil.logTiming(timing, "executed rules " + rules);
}
