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authorJim Hahn <jrh3@att.com>2020-04-06 15:33:23 -0400
committerJim Hahn <jrh3@att.com>2020-04-06 19:30:02 -0400
commit15014b8ca386a8bfd5c26435f45de94ca06e95e8 (patch)
tree3cca518b950dfa35da0ea64dab2f9ff2b80f4595 /policy-core/src/main/java
parentece155048af47ea83ff898c999aa5137dc99a988 (diff)
Address sonar issues in drools-pdp
Addressed the following sonar issues: - add "final" to public static fields - commented code; some were bogus - just updated the comments so sonar is happy - use "{}" instead of string concatenation - junit should assert something - when using logger, invoke compute-intensive tasks conditionally - use superclass name instead of subclass name to access static fields - don't always return the same value - remove "transient" from fields of classes that aren't Serializable - don't nest try/catch blocks - use appropriate class name in Logger.getLogger() - use Predicate<T> instead of Function<T,Boolean> - remove unused parameters from private methods - either log or throw - remove duplicate methods - use remove() TLS instead of set(null) - null check is implicit in instanceof check - do something with return value - don't use volatile - don't return "null" list; used Optional instead - add no-arg constructor to non-Serializable superclass - add callSuper=true for EqualsAndHashCode - don't declare "throws XXX" where XXX is a subclass of RuntimeException - remove serialVersionUID field if the class isn't Serializable Also addressed some eclipse warnings: - unused fields - suppress generic typic cast warnings Issue-ID: POLICY-2305 Change-Id: I906d5bf71c1f86531423e23b3667a585cdba45e1 Signed-off-by: Jim Hahn <jrh3@att.com>
Diffstat (limited to 'policy-core/src/main/java')
-rw-r--r--policy-core/src/main/java/org/onap/policy/drools/core/PolicyContainer.java94
-rw-r--r--policy-core/src/main/java/org/onap/policy/drools/core/PolicySession.java7
-rw-r--r--policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysFailLock.java4
-rw-r--r--policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java21
4 files changed, 64 insertions, 62 deletions
diff --git a/policy-core/src/main/java/org/onap/policy/drools/core/PolicyContainer.java b/policy-core/src/main/java/org/onap/policy/drools/core/PolicyContainer.java
index 0fe1f855..fee18a05 100644
--- a/policy-core/src/main/java/org/onap/policy/drools/core/PolicyContainer.java
+++ b/policy-core/src/main/java/org/onap/policy/drools/core/PolicyContainer.java
@@ -2,7 +2,7 @@
* ============LICENSE_START=======================================================
* policy-core
* ================================================================================
- * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 Samsung Electronics Co., Ltd.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
@@ -74,7 +74,7 @@ public class PolicyContainer implements Startable {
// (it can block for a long time)
private boolean scannerStarted = false;
- private static final String ERROR_STRING = "ERROR: Feature API: ";
+ private static final String ERROR_STRING = "ERROR: Feature API: {}";
// packages that are included in all 'KieContainer' instances
private static Collection<KiePackage> commonPackages = null;
@@ -260,50 +260,52 @@ public class PolicyContainer implements Startable {
private PolicySession activatePolicySession(String name, String kieBaseName) {
synchronized (sessions) {
logger.info("activatePolicySession:name :{}", name);
- PolicySession session = sessions.get(name);
- if (session != null) {
- logger.info("activatePolicySession:session - {} is returned.", session.getFullName());
- return session;
- }
- KieSession kieSession = null;
+ PolicySession session = sessions.computeIfAbsent(name, key -> makeSession(name, kieBaseName));
- // loop through all of the features, and give each one
- // a chance to create the 'KieSession'
- for (PolicySessionFeatureApi feature : PolicySessionFeatureApiConstants.getImpl().getList()) {
- try {
- if ((kieSession = feature.activatePolicySession(this, name, kieBaseName)) != null) {
- break;
- }
- } catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
+ logger.info("activatePolicySession:session - {} is returned.",
+ session == null ? "null" : session.getFullName());
+ return session;
+ }
+ }
+
+ private PolicySession makeSession(String name, String kieBaseName) {
+ PolicySession session = null;
+ KieSession kieSession = null;
+
+ // loop through all of the features, and give each one
+ // a chance to create the 'KieSession'
+ for (PolicySessionFeatureApi feature : PolicySessionFeatureApiConstants.getImpl().getList()) {
+ try {
+ if ((kieSession = feature.activatePolicySession(this, name, kieBaseName)) != null) {
+ break;
}
+ } catch (Exception e) {
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
+ }
- // if none of the features created the session, create one now
- if (kieSession == null) {
- kieSession = kieContainer.newKieSession(name);
- }
+ // if none of the features created the session, create one now
+ if (kieSession == null) {
+ kieSession = kieContainer.newKieSession(name);
+ }
+
+ if (kieSession != null) {
+ // creation of 'KieSession' was successful - build
+ // a PolicySession
+ session = new PolicySession(name, this, kieSession);
- if (kieSession != null) {
- // creation of 'KieSession' was successful - build
- // a PolicySession
- session = new PolicySession(name, this, kieSession);
- sessions.put(name, session);
-
- // notify features
- for (PolicySessionFeatureApi feature : PolicySessionFeatureApiConstants.getImpl().getList()) {
- try {
- feature.newPolicySession(session);
- } catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
- }
+ // notify features
+ for (PolicySessionFeatureApi feature : PolicySessionFeatureApiConstants.getImpl().getList()) {
+ try {
+ feature.newPolicySession(session);
+ } catch (Exception e) {
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
- logger.info("activatePolicySession:new session was added in sessions with name {}", name);
}
- logger.info("activatePolicySession:session - {} is returned.",
- session == null ? "null" : session.getFullName());
- return session;
+ logger.info("activatePolicySession:new session was added in sessions with name {}", name);
}
+
+ return session;
}
/**
@@ -365,7 +367,7 @@ public class PolicyContainer implements Startable {
try {
feature.newPolicySession(policySession);
} catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
}
return policySession;
@@ -562,10 +564,10 @@ public class PolicyContainer implements Startable {
*/
@Override
public synchronized boolean stop() {
- if (!isStarted) {
- return true;
- }
+ return (!isStarted || doStop());
+ }
+ private boolean doStop() {
Collection<PolicySession> localSessions;
synchronized (sessions) {
@@ -587,7 +589,7 @@ public class PolicyContainer implements Startable {
try {
feature.disposeKieSession(session);
} catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
}
}
@@ -650,7 +652,7 @@ public class PolicyContainer implements Startable {
try {
feature.destroyKieSession(session);
} catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
}
}
@@ -710,7 +712,7 @@ public class PolicyContainer implements Startable {
try {
feature.globalInit(args, configDir);
} catch (Exception e) {
- logger.error(ERROR_STRING + feature.getClass().getName(), e);
+ logger.error(ERROR_STRING, feature.getClass().getName(), e);
}
}
}
@@ -751,7 +753,7 @@ public class PolicyContainer implements Startable {
synchronized (PolicyContainer.class) {
if (commonPackages == null) {
commonPackages = KieUtils.resourceToPackages(
- PolicyContainer.class.getClassLoader(), COMMON_PACKAGES_RESOURCE_NAME);
+ PolicyContainer.class.getClassLoader(), COMMON_PACKAGES_RESOURCE_NAME).orElse(null);
if (commonPackages == null) {
// a problem occurred, which has already been logged --
// just store an empty collection, so we don't keep doing
diff --git a/policy-core/src/main/java/org/onap/policy/drools/core/PolicySession.java b/policy-core/src/main/java/org/onap/policy/drools/core/PolicySession.java
index 69ca87cb..cee7c368 100644
--- a/policy-core/src/main/java/org/onap/policy/drools/core/PolicySession.java
+++ b/policy-core/src/main/java/org/onap/policy/drools/core/PolicySession.java
@@ -2,7 +2,7 @@
* ============LICENSE_START=======================================================
* policy-core
* ================================================================================
- * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 Samsung Electronics Co., Ltd.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
@@ -149,15 +149,14 @@ public class PolicySession
break;
}
} catch (Exception e) {
- logger.error("ERROR: Feature API: "
- + feature.getClass().getName(), e);
+ logger.error("ERROR: Feature API: {}", feature.getClass().getName(), e);
}
}
if (threadModel == null) {
// no feature created a ThreadModel -- select the default
threadModel = new DefaultThreadModel(this);
}
- logger.info("starting ThreadModel for session " + getFullName());
+ logger.info("starting ThreadModel for session {}", getFullName());
threadModel.start();
}
diff --git a/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysFailLock.java b/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysFailLock.java
index 0a4d327b..03024f52 100644
--- a/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysFailLock.java
+++ b/policy-core/src/main/java/org/onap/policy/drools/core/lock/AlwaysFailLock.java
@@ -2,7 +2,7 @@
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2019-2020 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.
@@ -52,7 +52,7 @@ public class AlwaysFailLock extends LockImpl {
* Always returns false.
*/
@Override
- public boolean free() {
+ public synchronized boolean free() {
return false;
}
diff --git a/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java b/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
index c260924b..bcad792c 100644
--- a/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
+++ b/policy-core/src/main/java/org/onap/policy/drools/util/KieUtils.java
@@ -31,6 +31,7 @@ import java.util.Collections;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
+import java.util.Optional;
import java.util.stream.Collectors;
import lombok.NonNull;
@@ -183,19 +184,19 @@ public class KieUtils {
* @return a collection of 'KiePackage' instances, or 'null' in case of
* failure
*/
- public static Collection<KiePackage> resourceToPackages(ClassLoader classLoader, String resourceName) {
+ public static Optional<Collection<KiePackage>> resourceToPackages(ClassLoader classLoader, String resourceName) {
// find all resources matching 'resourceName'
Enumeration<URL> resources;
try {
resources = classLoader.getResources(resourceName);
} catch (IOException e) {
- logger.error("Exception fetching resources: " + resourceName, e);
- return null;
+ logger.error("Exception fetching resources: {}", resourceName, e);
+ return Optional.empty();
}
if (!resources.hasMoreElements()) {
// no resources found
- return null;
+ return Optional.empty();
}
// generate a 'KieFileSystem' from these resources
@@ -211,8 +212,8 @@ public class KieUtils {
// add a new '.drl' entry to the KieFileSystem
kfs.write(RESOURCE_PREFIX + index++ + RESOURCE_SUFFIX, drl);
} catch (IOException e) {
- logger.error("Couldn't read in " + url, e);
- return null;
+ logger.error("Couldn't read in {}", url, e);
+ return Optional.empty();
}
}
@@ -221,13 +222,13 @@ public class KieUtils {
builder.buildAll();
List<Message> results = builder.getResults().getMessages();
if (!results.isEmpty()) {
- logger.error("Kie build failed:\n" + results);
- return null;
+ logger.error("Kie build failed:\n{}", results);
+ return Optional.empty();
}
// generate a KieContainer, and extract the package list
- return kieServices.newKieContainer(builder.getKieModule().getReleaseId(), classLoader)
- .getKieBase().getKiePackages();
+ return Optional.of(kieServices.newKieContainer(builder.getKieModule().getReleaseId(), classLoader)
+ .getKieBase().getKiePackages());
}
/**