/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.stratos.autoscaler;
import org.apache.commons.configuration.XMLConfiguration;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.autoscaler.util.ConfUtil;
import org.apache.stratos.cloud.controller.stub.pojo.*;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.builder.*;
import org.drools.io.Resource;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import static org.junit.Assert.assertEquals;
public class TestMinimumRule {
private static final Log log = LogFactory.getLog(TestMinimumRule.class);
private String droolsFilePath = "src/test/resources/test-minimum-autoscaler-rule.drl";
private KnowledgeBase kbase;
private StatefulKnowledgeSession ksession;
private XMLConfiguration conf;
@Before
public void setUp() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
Resource resource = ResourceFactory.newFileResource(droolsFilePath);
kbuilder.add(resource, ResourceType.DRL);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
StringBuilder sb = new StringBuilder();
for (KnowledgeBuilderError error : errors) {
sb.append(error.getMessage());
}
if(sb.length() > 0) {
log.error(sb.toString());
}
throw new IllegalArgumentException(String.format("Could not parse drools file: %s", droolsFilePath));
}
kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
conf = ConfUtil.getInstance("src/test/resources/autoscaler.xml").getConfiguration();
}
@Test
public void testMinimumRule() {
if(kbase == null) {
throw new IllegalArgumentException("Knowledge base is null.");
}
assertEquals(false, TestDelegator.isMinRuleFired());
ksession = kbase.newStatefulKnowledgeSession();
ksession.setGlobal("clusterId", "lb.cluster.1");
ksession.setGlobal("lbRef", null);
PartitionContext p = new PartitionContext(conf.getLong("autoscaler.member.expiryTimeout", 900000));
p.setPendingMembers(new ArrayList<MemberContext>());
p.setMinimumMemberCount(1);
ksession.insert(p);
ksession.fireAllRules();
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
assertEquals(true, TestDelegator.isMinRuleFired());
}
public static String get() {
return "null";
}
}