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authorjhh <jorge.hernandez-herrero@att.com>2019-09-04 21:26:56 -0500
committerjhh <jorge.hernandez-herrero@att.com>2019-09-04 21:32:56 -0500
commit5d526310e8d2f3c729af4c6a8b1eec0f0a79008d (patch)
tree25860a90c164b4c581cbdd5eaa8acc04e4e95629 /policy-management/src/main
parent1281abe9fdb4a2e0a4f4880b8e0b9b375a0b9a3d (diff)
Split Engine start method into "start" and "open"
"open" meaning to open external configuration interfaces to external provisioning systems. Issue-ID: POLICY-2055 Signed-off-by: jhh <jorge.hernandez-herrero@att.com> Change-Id: Ic984f0ebccd088503b6b13620c3b80ed8e640899 Signed-off-by: jhh <jorge.hernandez-herrero@att.com>
Diffstat (limited to 'policy-management/src/main')
-rw-r--r--policy-management/src/main/java/org/onap/policy/drools/features/PolicyEngineFeatureApi.java98
-rw-r--r--policy-management/src/main/java/org/onap/policy/drools/system/Main.java2
-rw-r--r--policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java8
-rw-r--r--policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngineManager.java56
4 files changed, 111 insertions, 53 deletions
diff --git a/policy-management/src/main/java/org/onap/policy/drools/features/PolicyEngineFeatureApi.java b/policy-management/src/main/java/org/onap/policy/drools/features/PolicyEngineFeatureApi.java
index b6d827a4..fe31eb50 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/features/PolicyEngineFeatureApi.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/features/PolicyEngineFeatureApi.java
@@ -1,6 +1,6 @@
/*
* ============LICENSE_START=======================================================
- * policy-engine
+ * ONAP
* ================================================================================
* Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
@@ -33,200 +33,200 @@ import org.onap.policy.drools.system.PolicyEngine;
public interface PolicyEngineFeatureApi extends OrderedService {
/**
- * intercept before the Policy Engine is commanded to boot.
+ * Intercept before the Policy Engine is commanded to boot.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeBoot(PolicyEngine engine, String[] cliArgs) {
+ default boolean beforeBoot(PolicyEngine engine, String[] cliArgs) {
return false;
}
/**
- * intercept after the Policy Engine is booted.
+ * Intercept after the Policy Engine is booted.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterBoot(PolicyEngine engine) {
+ default boolean afterBoot(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine is configured.
+ * Intercept before the Policy Engine is configured.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeConfigure(PolicyEngine engine, Properties properties) {
+ default boolean beforeConfigure(PolicyEngine engine, Properties properties) {
return false;
}
/**
- * intercept after the Policy Engine is configured.
+ * Intercept after the Policy Engine is configured.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterConfigure(PolicyEngine engine) {
+ default boolean afterConfigure(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine goes active.
+ * Intercept before the Policy Engine goes active.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeActivate(PolicyEngine engine) {
+ default boolean beforeActivate(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine goes active.
+ * Intercept after the Policy Engine goes active.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterActivate(PolicyEngine engine) {
+ default boolean afterActivate(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine goes standby.
+ * Intercept before the Policy Engine goes standby.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeDeactivate(PolicyEngine engine) {
+ default boolean beforeDeactivate(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine goes standby.
+ * Intercept after the Policy Engine goes standby.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterDeactivate(PolicyEngine engine) {
+ default boolean afterDeactivate(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine is started.
+ * Intercept before the Policy Engine is started.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeStart(PolicyEngine engine) {
+ default boolean beforeStart(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine is started.
+ * Intercept after the Policy Engine is started.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterStart(PolicyEngine engine) {
+ default boolean afterStart(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine is stopped.
+ * Intercept before the Policy Engine is stopped.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise..
*/
- public default boolean beforeStop(PolicyEngine engine) {
+ default boolean beforeStop(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine is stopped.
+ * Intercept after the Policy Engine is stopped.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.d.
*/
- public default boolean afterStop(PolicyEngine engine) {
+ default boolean afterStop(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine is locked.
+ * Intercept before the Policy Engine is locked.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeLock(PolicyEngine engine) {
+ default boolean beforeLock(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine is locked.
+ * Intercept after the Policy Engine is locked.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise..
*/
- public default boolean afterLock(PolicyEngine engine) {
+ default boolean afterLock(PolicyEngine engine) {
return false;
}
/**
- * intercept before the Policy Engine is locked.
+ * Intercept before the Policy Engine is locked.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean beforeUnlock(PolicyEngine engine) {
+ default boolean beforeUnlock(PolicyEngine engine) {
return false;
}
/**
- * intercept after the Policy Engine is locked.
+ * Intercept after the Policy Engine is locked.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterUnlock(PolicyEngine engine) {
+ default boolean afterUnlock(PolicyEngine engine) {
return false;
}
/**
- * intercept the Policy Engine is shut down.
+ * Intercept the Policy Engine is shut down.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise..
*/
- public default boolean beforeShutdown(PolicyEngine engine) {
+ default boolean beforeShutdown(PolicyEngine engine) {
return false;
}
/**
- * called after the Policy Engine is shut down.
+ * Called after the Policy Engine is shut down.
*
* @return true if this feature intercepts and takes ownership
* of the operation preventing the invocation of
* lower priority features. False, otherwise.
*/
- public default boolean afterShutdown(PolicyEngine engine) {
+ default boolean afterShutdown(PolicyEngine engine) {
return false;
}
@@ -236,7 +236,7 @@ public interface PolicyEngineFeatureApi extends OrderedService {
* @return True if this feature intercepts and takes ownership of the operation
* preventing the invocation of lower priority features. False, otherwise.
*/
- public default boolean beforeOnTopicEvent(PolicyEngine engine, CommInfrastructure commType, String topic,
+ default boolean beforeOnTopicEvent(PolicyEngine engine, CommInfrastructure commType, String topic,
String event) {
return false;
}
@@ -247,8 +247,28 @@ public interface PolicyEngineFeatureApi extends OrderedService {
* @return True if this feature intercepts and takes ownership of the operation
* preventing the invocation of lower priority features. False, otherwise
*/
- public default boolean afterOnTopicEvent(PolicyEngine engine, PdpdConfiguration configuration,
+ default boolean afterOnTopicEvent(PolicyEngine engine, PdpdConfiguration configuration,
CommInfrastructure commType, String topic, String event) {
return false;
}
+
+ /**
+ * Called before the PolicyEngine opens its external configuration interfaces.
+ *
+ * @return True if this feature intercepts and takes ownership of the operation
+ * preventing the invocation of lower priority features. False, otherwise
+ */
+ default boolean beforeOpen(PolicyEngine engine) {
+ return false;
+ }
+
+ /**
+ * Called after the PolicyEngine opens its external configuration interfaces.
+ *
+ * @return True if this feature intercepts and takes ownership of the operation
+ * preventing the invocation of lower priority features. False, otherwise
+ */
+ default boolean afterOpen(PolicyEngine engine) {
+ return false;
+ }
}
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
index 1ef578c1..0e7b44f2 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/Main.java
@@ -175,5 +175,7 @@ public class Main {
e);
}
}
+
+ PolicyEngineConstants.getManager().open();
}
}
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
index 506474cb..653ff72e 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngine.java
@@ -73,6 +73,14 @@ public interface PolicyEngine extends Startable, Lockable, TopicListener {
boolean configure(PdpdConfiguration configuration);
/**
+ * open the Policy Engine to external configuration systems.
+ *
+ * @return success or failure
+ */
+ boolean open();
+
+
+ /**
* configure the engine's environment. General lab installation configuration is made available
* to the Engine. Typically, custom lab installation that may be needed by arbitrary drools
* applications are made available, for example network component and database host addresses.
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngineManager.java b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngineManager.java
index 32e3f674..766848c6 100644
--- a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngineManager.java
+++ b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyEngineManager.java
@@ -506,20 +506,6 @@ class PolicyEngineManager implements PolicyEngine {
(item, ex) -> logger.error("{}: cannot start http-server {} because of {}",
this, item, ex.getMessage(), ex));
- /* Start Policy Engine exclusively-owned (unmanaged) sources */
-
- attempt(success, this.sources,
- TopicSource::start,
- (item, ex) -> logger.error("{}: cannot start topic-source {} because of {}",
- this, item, ex.getMessage(), ex));
-
- /* Start Policy Engine owned (unmanaged) sinks */
-
- attempt(success, this.sinks,
- TopicSink::start,
- (item, ex) -> logger.error("{}: cannot start topic-sink {} because of {}",
- this, item, ex.getMessage(), ex));
-
/* Start Policy Controllers */
attempt(success, getControllerFactory().inventory(),
@@ -554,6 +540,48 @@ class PolicyEngineManager implements PolicyEngine {
return success.get();
}
+ @Override
+ public synchronized boolean open() {
+
+ /* pre-open hook */
+ if (FeatureApiUtils.apply(getEngineProviders(),
+ feature -> feature.beforeOpen(this),
+ (feature, ex) -> logger.error("{}: feature {} before-open failure because of {}", this,
+ feature.getClass().getName(), ex.getMessage(), ex))) {
+ return true;
+ }
+
+ if (this.locked) {
+ throw new IllegalStateException(ENGINE_LOCKED_MSG);
+ }
+
+ if (!this.alive) {
+ throw new IllegalStateException(ENGINE_STOPPED_MSG);
+ }
+
+ AtomicReference<Boolean> success = new AtomicReference<>(true);
+
+ /* Open the unmanaged topics to external components for configuration purposes */
+
+ attempt(success, this.sources,
+ TopicSource::start,
+ (item, ex) -> logger.error("{}: cannot start topic-source {} because of {}",
+ this, item, ex.getMessage(), ex));
+
+ attempt(success, this.sinks,
+ TopicSink::start,
+ (item, ex) -> logger.error("{}: cannot start topic-sink {} because of {}",
+ this, item, ex.getMessage(), ex));
+
+ /* post-open hook */
+ FeatureApiUtils.apply(getEngineProviders(),
+ feature -> feature.afterOpen(this),
+ (feature, ex) -> logger.error("{}: feature {} after-open failure because of {}", this,
+ feature.getClass().getName(), ex.getMessage(), ex));
+
+ return success.get();
+ }
+
@FunctionalInterface
private static interface PredicateWithEx<T> {
public boolean test(T value) throws InterruptedException;