Initial lifecycle state machine.

Basic state machine and initial functionality to
transition to the Active state via Engine commands and
StateUpdate messages.

Change-Id: I8212bd264dbbea446d4e682918f9360e3984887f
Issue-ID: POLICY-1608
Signed-off-by: Jorge Hernandez <jorge.hernandez-herrero@att.com>
Signed-off-by: jhh <jorge.hernandez-herrero@att.com>

14 files changed, 976 insertions, 0 deletions

diff --git a/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties b/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties
new file mode 100644
index 00000000..2cdc2abf
--- /dev/null
+++ b/feature-lifecycle/src/main/feature/config/feature-lifecycle.properties
@@ -0,0 +1,34 @@
+# ============LICENSE_START=======================================================
+# ONAP
+# ================================================================================
+# Copyright (C) 2019 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=========================================================
+
+dmaap.source.topics=POLICY-PDP-PAP
+dmaap.sink.topics=POLICY-PDP-PAP
+
+dmaap.source.topics.POLICY-PDP-PAP.servers=${env:DMAAP_SERVERS}
+dmaap.source.topics.POLICY-PDP-PAP.effectiveTopic=${env:POLICY_PDP_PAP_TOPIC}
+dmaap.source.topics.POLICY-PDP-PAP.apiKey=${env:POLICY_PDP_PAP_API_KEY}
+dmaap.source.topics.POLICY-PDP-PAP.apiSecret=${env:POLICY_PDP_PAP_API_SECRET}
+dmaap.source.topics.POLICY-PDP-PAP.managed=false
+dmaap.source.topics.POLICY-PDP-PAP.https=true
+
+dmaap.sink.topics.POLICY-PDP-PAP.servers=${env:DMAAP_SERVERS}
+dmaap.sink.topics.POLICY-PDP-PAP.effectiveTopic=${env:POLICY_PDP_PAP_TOPIC}
+dmaap.sink.topics.POLICY-PDP-PAP.apiKey=${env:POLICY_PDP_PAP_API_KEY}
+dmaap.sink.topics.POLICY-PDP-PAP.apiSecret=${env:POLICY_PDP_PAP_API_SECRET}
+dmaap.sink.topics.POLICY-PDP-PAP.managed=false
+dmaap.sink.topics.POLICY-PDP-PAP.https=true
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFeature.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFeature.java
new file mode 100644
index 00000000..5e1ddaea
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFeature.java
@@ -0,0 +1,69 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import org.onap.policy.drools.features.DroolsControllerFeatureAPI;
+import org.onap.policy.drools.features.PolicyControllerFeatureAPI;
+import org.onap.policy.drools.features.PolicyEngineFeatureAPI;
+import org.onap.policy.drools.system.PolicyEngine;
+
+/**
+ * This class hooks the Lifecycle State Machine to the PDP-D.
+ */
+public class LifecycleFeature
+    implements PolicyEngineFeatureAPI, DroolsControllerFeatureAPI, PolicyControllerFeatureAPI {
+    /**
+     * Lifecycle FSM.
+     */
+    protected static final LifecycleFsm fsm = new LifecycleFsm();
+
+    @Override
+    public int getSequenceNumber() {
+        return 10;
+    }
+
+    /**
+     * The 'afterStart' hook on the Policy Engine tell us when the engine is functional.
+     */
+    @Override
+    public boolean afterStart(PolicyEngine engine) {
+        fsm.start();
+        return false;
+    }
+
+    /**
+     * The 'afterStop' hook on the Policy Engine tell us when the engine is stopping.
+     */
+    @Override
+    public boolean afterStop(PolicyEngine engine) {
+        fsm.stop();
+        return false;
+    }
+
+    /**
+     * The 'beforeShutdown' hook on the Policy Engine tell us when the engine is going away.
+     */
+    @Override
+    public boolean beforeShutdown(PolicyEngine engine) {
+        fsm.shutdown();
+        return false;
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java
new file mode 100644
index 00000000..61f6de99
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleFsm.java
@@ -0,0 +1,325 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+import java.util.UUID;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import lombok.Getter;
+import lombok.NonNull;
+import lombok.Setter;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.common.capabilities.Startable;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.event.comm.TopicSource;
+import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
+import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
+import org.onap.policy.common.endpoints.listeners.ScoListener;
+import org.onap.policy.common.gson.annotation.GsonJsonIgnore;
+import org.onap.policy.common.utils.coder.StandardCoderObject;
+import org.onap.policy.common.utils.network.NetworkUtil;
+import org.onap.policy.drools.controller.DroolsController;
+import org.onap.policy.drools.persistence.SystemPersistence;
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.concepts.PdpStatus;
+import org.onap.policy.models.pdp.concepts.PolicyTypeIdent;
+import org.onap.policy.models.pdp.enums.PdpHealthStatus;
+import org.onap.policy.models.pdp.enums.PdpMessageType;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Lifecycle FSM.
+ */
+public class LifecycleFsm implements Startable {
+
+    protected static final String CONFIGURATION_PROPERTIES_NAME = "feature-lifecycle";
+    protected static final String POLICY_TYPE_VERSION = "1.0.0";
+    protected static final long DEFAULT_STATUS_TIMER_SECONDS = 60L;
+    protected static final String PDP_MESSAGE_NAME = "messageName";
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleFsm.class);
+
+    protected final Properties properties;
+
+    protected TopicSource source;
+    protected TopicSinkClient client;
+
+    protected volatile LifecycleState state = new LifecycleStateTerminated(this);
+
+    @GsonJsonIgnore
+    protected ScheduledThreadPoolExecutor scheduler = new ScheduledThreadPoolExecutor(1);
+
+    @GsonJsonIgnore
+    protected ScheduledFuture<?> statusTask;
+
+    @GsonJsonIgnore
+    protected MessageTypeDispatcher sourceDispatcher = new MessageTypeDispatcher(new String[]{PDP_MESSAGE_NAME});
+
+    @GsonJsonIgnore
+    protected MessageNameDispatcher nameDispatcher = new MessageNameDispatcher(PdpStateChange.class, this);
+
+    @Getter
+    @Setter
+    protected long statusTimerSeconds = DEFAULT_STATUS_TIMER_SECONDS;
+
+    @Getter
+    protected String pdpGroup;
+
+    @Getter
+    protected String pdpSubgroup;
+
+    /**
+     * Constructor.
+     */
+    public LifecycleFsm() {
+        this.properties = SystemPersistence.manager.getProperties(CONFIGURATION_PROPERTIES_NAME);
+
+        scheduler.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
+        scheduler.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
+        scheduler.setRemoveOnCancelPolicy(true);
+    }
+
+    @Override
+    public boolean isAlive() {
+        return client != null && client.getSink().isAlive();
+    }
+
+    /**
+     * Current state.
+     */
+    public PdpState state() {
+        return state.state();
+    }
+
+    /* ** FSM events - entry points of events into the FSM ** */
+
+    @Override
+    public synchronized boolean start() {
+        logger.info("lifecycle event: start");
+        return state.start();
+    }
+
+    @Override
+    public synchronized boolean stop() {
+        logger.info("lifecycle event: stop");
+        return state.stop();
+    }
+
+    @Override
+    public synchronized void shutdown() {
+        logger.info("lifecycle event: shutdown");
+        state.shutdown();
+    }
+
+    /**
+     * Status reporting event.
+     * @return true if successful
+     */
+    public synchronized boolean status() {
+        logger.info("lifecycle event: status");
+        return state.status();
+    }
+
+    public synchronized void stateChange(PdpStateChange stateChange) {
+        logger.info("lifecycle event: state-change");
+        state.stateChange(stateChange);
+    }
+
+    /* ** FSM State Actions ** */
+
+    protected boolean startAction() {
+        if (isAlive()) {
+            return true;
+        }
+
+        return startIo() && startTimers();
+    }
+
+    protected boolean stopAction() {
+        if (!isAlive()) {
+            return true;
+        }
+
+        boolean successTimers = stopTimers();
+        boolean successIo = stopIo();
+        return successTimers && successIo;
+    }
+
+    protected void shutdownAction() {
+        shutdownIo();
+        shutdownTimers();
+    }
+
+    protected boolean statusAction(PdpState state) {
+        if (!isAlive()) {
+            return false;
+        }
+
+        return client.send(statusPayload(state));
+    }
+
+    protected void setGroupAction(String group, String subgroup) {
+        this.pdpGroup = group;
+        this.pdpSubgroup = subgroup;
+    }
+
+    protected void transitionToAction(@NonNull LifecycleState newState) {
+        state = newState;
+    }
+
+    /* ** Action Helpers ** */
+
+    private boolean startIo() {
+        return source() && sink();
+    }
+
+    private boolean startTimers() {
+        statusTask =
+                this.scheduler.scheduleAtFixedRate(() -> status(), 0, statusTimerSeconds, TimeUnit.SECONDS);
+        return !statusTask.isCancelled() && !statusTask.isDone();
+    }
+
+    private boolean stopIo() {
+        source.unregister(sourceDispatcher);
+        boolean successSource = source.stop();
+        boolean successSink = client.getSink().stop();
+        return successSource && successSink;
+    }
+
+    private boolean stopTimers() {
+        boolean success = true;
+        if (statusTask != null) {
+            success = statusTask.cancel(false);
+        }
+
+        return success;
+    }
+
+    private void shutdownIo() {
+        client.getSink().shutdown();
+        source.shutdown();
+    }
+
+    private void shutdownTimers() {
+        scheduler.shutdownNow();
+    }
+
+    private PdpStatus statusPayload(PdpState state) {
+        PdpStatus status = new PdpStatus();
+        status.setRequestId(UUID.randomUUID().toString());
+        status.setTimestampMs(System.currentTimeMillis());
+        status.setInstance(NetworkUtil.getHostname());
+        status.setState(state);
+        status.setHealthy(isAlive() ? PdpHealthStatus.HEALTHY : PdpHealthStatus.NOT_HEALTHY);
+        status.setPdpType("drools");    // TODO: enum ?
+        return status;
+    }
+
+    private boolean source() {
+        List<TopicSource> sources = TopicEndpoint.manager.addTopicSources(properties);
+        if (sources.isEmpty()) {
+            return false;
+        }
+
+        if (sources.size() != 1) {
+            logger.warn("Lifecycle Manager: unexpected: more than one source configured ({})", sources.size());
+        }
+
+        this.source = sources.get(0);
+        this.source.register(this.sourceDispatcher);
+        this.sourceDispatcher.register(PdpMessageType.PDP_STATE_CHANGE.name(), nameDispatcher);
+        return source.start();
+    }
+
+    private boolean sink() {
+        List<TopicSink> sinks = TopicEndpoint.manager.addTopicSinks(properties);
+        if (sinks.isEmpty()) {
+            logger.error("Lifecycle Manager sinks have not been configured");
+            return false;
+        }
+
+        if (sinks.size() != 1) {
+            logger.warn("Lifecycle Manager: unexpected: more than one sink configured ({})", sinks.size());
+        }
+
+        this.client = new TopicSinkClient(sinks.get(0));
+        return this.client.getSink().start();
+    }
+
+    private List<PolicyTypeIdent> getCapabilities() {
+        List<PolicyTypeIdent> capabilities = new ArrayList<>();
+        for (DroolsController dc : DroolsController.factory.inventory()) {
+            if (!dc.isBrained()) {
+                continue;
+            }
+
+            for (String domain : dc.getBaseDomainNames()) {
+                // HACK: until legacy controllers are removed
+                if (StringUtils.countMatches(domain, ".") > 1) {
+                    capabilities.add(new PolicyTypeIdent(domain, POLICY_TYPE_VERSION));
+                } else {
+                    logger.info("legacy controller {} with domain {}", dc.getCanonicalSessionNames(), domain);
+                }
+            }
+        }
+        return capabilities;
+    }
+
+
+    /* **** IO listeners ***** */
+
+    /**
+     * PDP State Change Message Listener.
+     */
+    public static class MessageNameDispatcher extends ScoListener<PdpStateChange> {
+
+        protected final LifecycleFsm fsm;
+
+        /**
+         * Constructor.
+         */
+        public MessageNameDispatcher(Class<PdpStateChange> clazz, LifecycleFsm fsm) {
+            super(clazz);
+            this.fsm = fsm;
+        }
+
+        @Override
+        public void onTopicEvent(CommInfrastructure commInfrastructure, String topic,
+            StandardCoderObject standardCoderObject, PdpStateChange pdpStateChange) {
+
+            if (pdpStateChange == null) {
+                logger.warn("pdp-state-chage null from {}:{}", commInfrastructure, topic);
+                return;
+            }
+
+            fsm.stateChange(pdpStateChange);
+        }
+    }
+
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleState.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleState.java
new file mode 100644
index 00000000..e07df151
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleState.java
@@ -0,0 +1,78 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.NonNull;
+import org.onap.policy.common.capabilities.Startable;
+import org.onap.policy.common.gson.annotation.GsonJsonIgnore;
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.concepts.PdpUpdate;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Lifecycle State.
+ */
+public abstract class LifecycleState implements Startable {
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleState.class);
+
+    @GsonJsonIgnore
+    protected LifecycleFsm fsm;
+
+    /**
+     * Constructor.
+     * @param manager Lifecycle Manager.
+     */
+    public LifecycleState(@NonNull LifecycleFsm manager) {
+        this.fsm = manager;
+    }
+
+    /**
+     * change state.
+     * @param newState new state
+     */
+    public abstract boolean transitionToState(@NonNull LifecycleState newState);
+
+    /**
+     * current state.
+     * @return state
+     */
+    public abstract PdpState state();
+
+    /**
+     * status event.
+     */
+    public abstract boolean status();
+
+    /**
+     *  update event.
+     * @param update message
+     */
+    public abstract void update(@NonNull PdpUpdate update);
+
+    /**
+     * state change event .
+     * @param change message
+     */
+    public abstract void stateChange(@NonNull PdpStateChange change);
+}
\ No newline at end of file
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateActive.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateActive.java
new file mode 100644
index 00000000..d5be822b
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateActive.java
@@ -0,0 +1,67 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.ToString;
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Lifecycle Active State.
+ */
+@ToString
+public class LifecycleStateActive extends LifecycleStateDefault {
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleStateActive.class);
+
+    /**
+     * Constructor.
+     * @param manager fsm
+     */
+    public LifecycleStateActive(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public PdpState state() {
+        return PdpState.ACTIVE;
+    }
+
+    @Override
+    public void stateChange(PdpStateChange change) {
+        synchronized (fsm) {
+            if (change.getState() == PdpState.ACTIVE) {
+                fsm.setGroupAction(change.getPdpGroup(), change.getPdpSubgroup());
+                return;
+            }
+
+            if (change.getState() != PdpState.PASSIVE) {
+                logger.warn("{}: state-change: {}", this, change);
+                return;
+            }
+
+            fsm.setGroupAction(change.getPdpGroup(), change.getPdpSubgroup());
+            fsm.transitionToAction(new LifecycleStatePassive(fsm));
+        }
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateDefault.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateDefault.java
new file mode 100644
index 00000000..18e40012
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateDefault.java
@@ -0,0 +1,88 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.NonNull;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Support class for default functionality for operational states.
+ */
+public abstract class LifecycleStateDefault extends LifecycleStateUnsupported {
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleState.class);
+
+    public LifecycleStateDefault(LifecycleFsm manager) {
+        super(manager);
+    }
+
+
+    @Override
+    public boolean transitionToState(@NonNull LifecycleState newState) {
+        logger.info("{}: state-change from {} to {}", this, state(), newState.state());
+
+        synchronized (fsm) {
+            if (state() == newState.state()) {
+                return false;
+            }
+
+            fsm.transitionToAction(newState);
+            return true;
+        }
+    }
+
+    @Override
+    public boolean start() {
+        logger.warn("{}: start", this);
+        return false;
+    }
+
+    @Override
+    public boolean stop() {
+        synchronized (fsm) {
+            boolean success = fsm.statusAction(PdpState.TERMINATED);
+            success = fsm.stopAction() && success;
+            return transitionToState(new LifecycleStateTerminated(fsm)) && success;
+        }
+    }
+
+    @Override
+    public void shutdown() {
+        synchronized (fsm) {
+            stop();
+            fsm.shutdownAction();
+        }
+    }
+
+    @Override
+    public boolean isAlive() {
+        return true;
+    }
+
+    @Override
+    public boolean status() {
+        synchronized (fsm) {
+            return fsm.statusAction(state());
+        }
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStatePassive.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStatePassive.java
new file mode 100644
index 00000000..dc184e87
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStatePassive.java
@@ -0,0 +1,63 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.ToString;
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Lifecycle Passive State.
+ */
+
+@ToString
+public class LifecycleStatePassive extends LifecycleStateDefault {
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleStatePassive.class);
+
+    /**
+     * Constructor.
+     * @param manager fsm
+     */
+    public LifecycleStatePassive(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public PdpState state() {
+        return PdpState.PASSIVE;
+    }
+
+    @Override
+    public void stateChange(PdpStateChange change) {
+        synchronized (fsm) {
+            if (change.getState() != PdpState.ACTIVE) {
+                logger.warn("{}: state-change: {}", this, change);
+                return;
+            }
+
+            fsm.setGroupAction(change.getPdpGroup(), change.getPdpSubgroup());
+            fsm.transitionToAction(new LifecycleStateActive(fsm));
+        }
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateSafe.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateSafe.java
new file mode 100644
index 00000000..e0ea2b5e
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateSafe.java
@@ -0,0 +1,41 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.ToString;
+import org.onap.policy.models.pdp.enums.PdpState;
+
+/**
+ * Lifecycle Safe State.
+ */
+
+@ToString
+public class LifecycleStateSafe extends LifecycleStateUnsupported {
+
+    public LifecycleStateSafe(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public PdpState state() {
+        return PdpState.SAFE;
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTerminated.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTerminated.java
new file mode 100644
index 00000000..7455349c
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTerminated.java
@@ -0,0 +1,86 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.ToString;
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.enums.PdpState;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Lifecycle Terminated State.
+ */
+
+@ToString
+public class LifecycleStateTerminated extends LifecycleStateDefault {
+
+    private static final Logger logger = LoggerFactory.getLogger(LifecycleStateTerminated.class);
+
+    protected LifecycleStateTerminated(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public PdpState state() {
+        return PdpState.TERMINATED;
+    }
+
+    @Override
+    public boolean start() {
+        synchronized (fsm) {
+            boolean success = fsm.startAction();
+            if (success) {
+                return transitionToState(new LifecycleStatePassive(fsm));
+            }
+
+            return false;
+        }
+    }
+
+    @Override
+    public boolean stop() {
+        logger.warn("{}: stop", this);
+        return true;
+    }
+
+    @Override
+    public void shutdown() {
+        logger.warn("{}: shutdown", this);
+    }
+
+    @Override
+    public boolean isAlive() {
+        return false;
+    }
+
+    @Override
+    public boolean status() {
+        logger.warn("{}: status", this);
+        return false;
+    }
+
+    @Override
+    public void stateChange(PdpStateChange change) {
+        logger.warn("{}: state-change: {}", this, change);
+        return;
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTest.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTest.java
new file mode 100644
index 00000000..03ca3778
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateTest.java
@@ -0,0 +1,44 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import lombok.ToString;
+import org.onap.policy.models.pdp.enums.PdpState;
+
+/**
+ * Lifecycle Test State.
+ */
+@ToString
+public class LifecycleStateTest extends LifecycleStateUnsupported {
+
+    /**
+     * Constructor.
+     * @param manager fsm
+     */
+    public LifecycleStateTest(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public PdpState state() {
+        return PdpState.TEST;
+    }
+}
diff --git a/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateUnsupported.java b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateUnsupported.java
new file mode 100644
index 00000000..ed6fa1a5
--- /dev/null
+++ b/feature-lifecycle/src/main/java/org/onap/policy/drools/lifecycle/LifecycleStateUnsupported.java
@@ -0,0 +1,78 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 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.drools.lifecycle;
+
+import org.onap.policy.models.pdp.concepts.PdpStateChange;
+import org.onap.policy.models.pdp.concepts.PdpUpdate;
+
+/**
+ * Support class for those unsupported states not yet implemented.
+ */
+public abstract class LifecycleStateUnsupported extends LifecycleState {
+
+    /**
+     * Constructor.
+     * @param manager Lifecycle Manager.
+     */
+    public LifecycleStateUnsupported(LifecycleFsm manager) {
+        super(manager);
+    }
+
+    @Override
+    public boolean transitionToState(LifecycleState newState) {
+        throw new UnsupportedOperationException("transitionToAction: " + this);
+    }
+
+    @Override
+    public boolean start() {
+        throw new UnsupportedOperationException("start: " + this);
+    }
+
+    @Override
+    public boolean stop() {
+        throw new UnsupportedOperationException("stop: " + this);
+    }
+
+    @Override
+    public void shutdown() {
+        throw new UnsupportedOperationException("shutdown: " + this);
+    }
+
+    @Override
+    public boolean isAlive() {
+        throw new UnsupportedOperationException("isAlive: " + this);
+    }
+
+    @Override
+    public boolean status() {
+        throw new UnsupportedOperationException("status: " + this);
+    }
+
+    @Override
+    public void update(PdpUpdate update) {
+        throw new UnsupportedOperationException("start: " + this);
+    }
+
+    @Override
+    public void stateChange(PdpStateChange change) {
+        throw new UnsupportedOperationException("start: " + this);
+    }
+}
diff --git a/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.DroolsControllerFeatureAPI b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.DroolsControllerFeatureAPI
new file mode 100644
index 00000000..78cf97eb
--- /dev/null
+++ b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.DroolsControllerFeatureAPI
@@ -0,0 +1 @@
+org.onap.policy.drools.lifecycle.LifecycleFeature
diff --git a/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyControllerFeatureAPI b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyControllerFeatureAPI
new file mode 100644
index 00000000..78cf97eb
--- /dev/null
+++ b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyControllerFeatureAPI
@@ -0,0 +1 @@
+org.onap.policy.drools.lifecycle.LifecycleFeature
diff --git a/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI
new file mode 100644
index 00000000..78cf97eb
--- /dev/null
+++ b/feature-lifecycle/src/main/resources/META-INF/services/org.onap.policy.drools.features.PolicyEngineFeatureAPI
@@ -0,0 +1 @@
+org.onap.policy.drools.lifecycle.LifecycleFeature