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/*-
* ============LICENSE_START=======================================================
* demo
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.template.demo;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.io.IOUtils;
import org.kie.api.KieServices;
import org.kie.api.builder.KieBuilder;
import org.kie.api.builder.KieFileSystem;
import org.kie.api.builder.Message;
import org.kie.api.builder.ReleaseId;
import org.kie.api.builder.Results;
import org.kie.api.builder.model.KieModuleModel;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;
import org.onap.policy.controlloop.policy.ControlLoopPolicy;
import org.onap.policy.controlloop.policy.guard.ControlLoopGuard;
import org.onap.policy.drools.http.server.HttpServletServer;
import org.onap.policy.drools.system.PolicyEngine;
import org.onap.policy.guard.PolicyGuardYamlToXacml;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import com.att.research.xacml.util.XACMLProperties;
public final class Util {
private static final String OPSHISTPUPROP = "OperationsHistoryPU";
private static final Logger logger = LoggerFactory.getLogger(Util.class);
public static class Pair<A, B> {
public final A a;
public final B b;
public Pair(A a, B b) {
this.a = a;
this.b = b;
}
}
public static Pair<ControlLoopPolicy, String> loadYaml(String testFile) {
try (InputStream is = new FileInputStream(new File(testFile))) {
String contents = IOUtils.toString(is, StandardCharsets.UTF_8);
//
// Read the yaml into our Java Object
//
Yaml yaml = new Yaml(new Constructor(ControlLoopPolicy.class));
Object obj = yaml.load(contents);
//String ttt = ((ControlLoopPolicy)obj).policies.getFirst().payload.get("asdas");
logger.debug(contents);
//for(Policy policy : ((ControlLoopPolicy)obj).policies){
return new Pair<ControlLoopPolicy, String>((ControlLoopPolicy) obj, contents);
} catch (FileNotFoundException e) {
fail(e.getLocalizedMessage());
} catch (IOException e) {
fail(e.getLocalizedMessage());
}
return null;
}
public static ControlLoopGuard loadYamlGuard(String testFile) {
try (InputStream is = new FileInputStream(new File(testFile))) {
String contents = IOUtils.toString(is, StandardCharsets.UTF_8);
//
// Read the yaml into our Java Object
//
Yaml yaml = new Yaml(new Constructor(ControlLoopGuard.class));
Object obj = yaml.load(contents);
return (ControlLoopGuard) obj;
} catch (FileNotFoundException e) {
fail(e.getLocalizedMessage());
} catch (IOException e) {
fail(e.getLocalizedMessage());
}
return null;
}
public static HttpServletServer buildAaiSim() throws InterruptedException, IOException {
return org.onap.policy.simulators.Util.buildAaiSim();
}
public static HttpServletServer buildSoSim() throws InterruptedException, IOException {
return org.onap.policy.simulators.Util.buildSoSim();
}
public static HttpServletServer buildVfcSim() throws InterruptedException, IOException {
return org.onap.policy.simulators.Util.buildVfcSim();
}
public static HttpServletServer buildGuardSim() throws InterruptedException, IOException {
return org.onap.policy.simulators.Util.buildGuardSim();
}
private static String generatePolicy(String ruleContents,
String closedLoopControlName,
String policyScope,
String policyName,
String policyVersion,
String controlLoopYaml) {
Pattern p = Pattern.compile("\\$\\{closedLoopControlName\\}");
Matcher m = p.matcher(ruleContents);
ruleContents = m.replaceAll(closedLoopControlName);
p = Pattern.compile("\\$\\{policyScope\\}");
m = p.matcher(ruleContents);
ruleContents = m.replaceAll(policyScope);
p = Pattern.compile("\\$\\{policyName\\}");
m = p.matcher(ruleContents);
ruleContents = m.replaceAll(policyName);
p = Pattern.compile("\\$\\{policyVersion\\}");
m = p.matcher(ruleContents);
ruleContents = m.replaceAll(policyVersion);
p = Pattern.compile("\\$\\{controlLoopYaml\\}");
m = p.matcher(ruleContents);
ruleContents = m.replaceAll(controlLoopYaml);
return ruleContents;
}
public static KieSession buildContainer(String droolsTemplate, String closedLoopControlName, String policyScope, String policyName, String policyVersion, String yamlSpecification) throws IOException {
//
// Get our Drools Kie factory
//
KieServices ks = KieServices.Factory.get();
KieModuleModel kModule = ks.newKieModuleModel();
logger.debug("KMODULE:" + System.lineSeparator() + kModule.toXML());
//
// Generate our drools rule from our template
//
KieFileSystem kfs = ks.newKieFileSystem();
kfs.writeKModuleXML(kModule.toXML());
{
Path rule = Paths.get(droolsTemplate);
String ruleTemplate = new String(Files.readAllBytes(rule));
String drlContents = generatePolicy(ruleTemplate,
closedLoopControlName,
policyScope,
policyName,
policyVersion,
yamlSpecification);
kfs.write("src/main/resources/" + policyName + ".drl", ks.getResources().newByteArrayResource(drlContents.getBytes()));
}
//
// Compile the rule
//
KieBuilder builder = ks.newKieBuilder(kfs).buildAll();
Results results = builder.getResults();
if (results.hasMessages(Message.Level.ERROR)) {
for (Message msg : results.getMessages()) {
logger.error(msg.toString());
}
throw new RuntimeException("Drools Rule has Errors");
}
for (Message msg : results.getMessages()) {
logger.debug(msg.toString());
}
//
// Create our kie Session and container
//
ReleaseId releaseId = ks.getRepository().getDefaultReleaseId();
logger.debug(releaseId.toString());
KieContainer kContainer = ks.newKieContainer(releaseId);
return setupSession(kContainer.newKieSession());
}
private static KieSession setupSession (KieSession kieSession) {
//
// Create XACML Guard policy from YAML
// We prepare 4 Guards. Notice that Rebuilds recipe has two Guards (for checking policy combining algorithm)
//
PolicyGuardYamlToXacml.fromYamlToXacml("src/test/resources/yaml/policy_guard_appc_restart.yaml",
"src/main/resources/frequency_limiter_template.xml",
"src/test/resources/xacml/autogenerated_frequency_limiter_restart.xml");
PolicyGuardYamlToXacml.fromYamlToXacml("src/test/resources/yaml/policy_guard_appc_rebuild.yaml",
"src/main/resources/frequency_limiter_template.xml",
"src/test/resources/xacml/autogenerated_frequency_limiter_rebuild.xml");
PolicyGuardYamlToXacml.fromYamlToXacml("src/test/resources/yaml/policy_guard_appc_rebuild_1.yaml",
"src/main/resources/frequency_limiter_template.xml",
"src/test/resources/xacml/autogenerated_frequency_limiter_rebuild_1.xml");
PolicyGuardYamlToXacml.fromYamlToXacml("src/test/resources/yaml/policy_guard_appc_migrate.yaml",
"src/main/resources/frequency_limiter_template.xml",
"src/test/resources/xacml/autogenerated_frequency_limiter_migrate.xml");
PolicyGuardYamlToXacml.fromYamlToXacml("src/test/resources/yaml/policy_guard_appc_modifyconfig.yaml",
"src/main/resources/frequency_limiter_template.xml",
"src/test/resources/xacml/autogenerated_frequency_limiter_modifyconfig.xml");
PolicyGuardYamlToXacml.fromYamlToXacmlBlacklist("src/test/resources/yaml/policy_guard_appc_restart_blacklist.yaml",
"src/main/resources/blacklist_template.xml",
"src/test/resources/xacml/autogenerated_blacklist.xml");
//
// Creating an embedded XACML PDP
//
System.setProperty(XACMLProperties.XACML_PROPERTIES_NAME, "src/test/resources/xacml/xacml_guard.properties");
return kieSession;
}
public static void setAAIProps(){
PolicyEngine.manager.setEnvironmentProperty("aai.url", "http://localhost:6666");
PolicyEngine.manager.setEnvironmentProperty("aai.username", "AAI");
PolicyEngine.manager.setEnvironmentProperty("aai.password", "AAI");
}
public static void setSOProps(){
PolicyEngine.manager.setEnvironmentProperty("so.url", "http://localhost:6667");
PolicyEngine.manager.setEnvironmentProperty("so.username", "SO");
PolicyEngine.manager.setEnvironmentProperty("so.password", "SO");
}
public static void setGuardProps(){
/*
* Guard PDP-x connection Properties
*/
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_URL, "http://localhost:6669/pdp/api/getDecision");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_USER, "python");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_PASS, "test");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_CLIENT_USER, "python");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_CLIENT_PASS, "test");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_ENV, "TEST");
PolicyEngine.manager.setEnvironmentProperty(org.onap.policy.guard.Util.PROP_GUARD_DISABLED, "false");
}
public static void setVFCProps() {
PolicyEngine.manager.setEnvironmentProperty("vfc.url", "http://localhost:6668");
PolicyEngine.manager.setEnvironmentProperty("vfc.username", "VFC");
PolicyEngine.manager.setEnvironmentProperty("vfc.password", "VFC");
}
public static void setPUProp(){
System.setProperty(OPSHISTPUPROP, "TestOperationsHistoryPU");
}
}
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