aboutsummaryrefslogtreecommitdiffstats
path: root/participant/participant-impl/participant-impl-dcae/src/main/java
diff options
context:
space:
mode:
authorliamfallon <liam.fallon@est.tech>2021-05-26 11:02:07 +0100
committerliamfallon <liam.fallon@est.tech>2021-05-26 11:02:11 +0100
commit20c7487f77d0728d270b2bed34c2c798d17cc12d (patch)
treebb20d003255fab584ac64968967fbc6e1f205232 /participant/participant-impl/participant-impl-dcae/src/main/java
parentf83411a86e2277adae69e780e8511913d61a0f17 (diff)
Transfer tosca-poc onto master
This is the third if three commits, this commit makes the content of the master branch the same as the tosca-poc branch. This commit adds the "src" files for TOSCA control loops to the modules in master. Difference between this commit and the current master: ------------------------------------------------------ diff -qr clamp clamp-master |diff_filter.sh Only in clamp/common: src Only in clamp/models: src Files clamp/participant/participant-impl/participant-impl-dcae/pom.xml and clamp-master/participant/participant-impl/participant-impl-dcae/pom.xml differ Only in clamp/participant/participant-impl/participant-impl-dcae: src Only in clamp/participant/participant-impl/participant-impl-policy: src Only in clamp/participant/participant-impl/participant-impl-simulator: src Files clamp/participant/participant-impl/pom.xml and clamp-master/participant/participant-impl/pom.xml differ Only in clamp/participant/participant-intermediary: src Files clamp/participant/pom.xml and clamp-master/participant/pom.xml differ Files clamp/pom.xml and clamp-master/pom.xml differ Files clamp/runtime/pom.xml and clamp-master/runtime/pom.xml differ Only in clamp: runtime-controlloop Difference between this commit and the current tosca-poc branch: ---------------------------------------------------------------- diff -qr clamp clamp-tp |diff_filter.sh Files clamp/INFO.yaml and clamp-tp/INFO.yaml differ Only in clamp/releases: 6.0.1-container.yaml Only in clamp/releases: 6.0.1.yaml Only in clamp/releases: 6.0.2-container.yaml Only in clamp/releases: 6.0.2.yaml Only in clamp/releases: 6.1.0-container.yaml Only in clamp/releases: 6.1.0.yaml Only in clamp/releases: 6.1.1-container.yaml Only in clamp/releases: 6.1.1.yaml Files clamp/runtime/src/main/resources/META-INF/resources/swagger.html and clamp-tp/runtime/src/main/resources/META-INF/resources/swagger.html differ Issue-ID: POLICY-3215 Change-Id: Ica1aa3fe5d6110df2396ea856703102e800fa770 Signed-off-by: liamfallon <liam.fallon@est.tech>
Diffstat (limited to 'participant/participant-impl/participant-impl-dcae/src/main/java')
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/AbstractHttpClient.java154
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ClampHttpClient.java140
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ConsulDcaeHttpClient.java46
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/ControlLoopElementHandler.java197
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java82
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeProvider.java133
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameterHandler.java78
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameters.java93
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/Main.java151
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeActivator.java58
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeCommandLineArguments.java151
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponent.java35
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponentState.java34
-rw-r--r--participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/Loop.java36
14 files changed, 1388 insertions, 0 deletions
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/AbstractHttpClient.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/AbstractHttpClient.java
new file mode 100644
index 000000000..b2d0b61d0
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/AbstractHttpClient.java
@@ -0,0 +1,154 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.httpclient;
+
+import java.io.Closeable;
+import java.io.IOException;
+import javax.ws.rs.core.Response.Status;
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpHost;
+import org.apache.http.HttpRequest;
+import org.apache.http.ParseException;
+import org.apache.http.auth.AuthScope;
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.AuthCache;
+import org.apache.http.client.CredentialsProvider;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.client.methods.HttpPut;
+import org.apache.http.client.protocol.HttpClientContext;
+import org.apache.http.conn.ssl.NoopHostnameVerifier;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
+import org.apache.http.impl.auth.BasicScheme;
+import org.apache.http.impl.client.BasicAuthCache;
+import org.apache.http.impl.client.BasicCredentialsProvider;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.apache.http.util.EntityUtils;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.clamp.controlloop.participant.dcae.model.Loop;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class AbstractHttpClient implements Closeable {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(AbstractHttpClient.class);
+ private final HttpClientContext localContext;
+ private final CloseableHttpClient httpclient;
+ private final HttpHost target;
+ public static final Coder CODER = new StandardCoder();
+
+ /**
+ * Constructor.
+ */
+ protected AbstractHttpClient(RestServerParameters restServerParameters) {
+ try {
+ final String scheme = restServerParameters.isHttps() ? "https" : "http";
+ target = new HttpHost(restServerParameters.getHost(), restServerParameters.getPort(), scheme);
+
+ CredentialsProvider credsProvider = new BasicCredentialsProvider();
+ credsProvider.setCredentials(new AuthScope(target.getHostName(), target.getPort()),
+ new UsernamePasswordCredentials(restServerParameters.getUserName(),
+ restServerParameters.getPassword()));
+
+ AuthCache authCache = new BasicAuthCache();
+ BasicScheme basicAuth = new BasicScheme();
+ authCache.put(target, basicAuth);
+ localContext = HttpClientContext.create();
+ localContext.setAuthCache(authCache);
+
+ HttpClientBuilder builder = HttpClients.custom().setDefaultCredentialsProvider(credsProvider);
+ if (restServerParameters.isHttps()) {
+ final SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(new SSLContextBuilder()
+ .loadTrustMaterial(null, new TrustSelfSignedStrategy()).setProtocol("TLSv1.2").build(),
+ new NoopHostnameVerifier());
+ builder.setSSLSocketFactory(sslsf);
+ }
+ httpclient = builder.build();
+
+ } catch (final Exception e) {
+ throw new ControlLoopRuntimeException(Status.INTERNAL_SERVER_ERROR,
+ restServerParameters.getName() + " Client failed to start", e);
+ }
+ }
+
+ CloseableHttpResponse execute(HttpRequest request) throws IOException {
+ return httpclient.execute(target, request, localContext);
+ }
+
+ protected boolean executePut(String path, int statusCode) {
+ try (CloseableHttpResponse response = execute(new HttpPut(path))) {
+ return response.getStatusLine().getStatusCode() == statusCode;
+ } catch (Exception e) {
+ return false;
+ }
+ }
+
+ protected Loop executePost(String path, int statusCode) {
+ try (CloseableHttpResponse response = execute(new HttpPost(path))) {
+ if (response.getStatusLine().getStatusCode() != statusCode) {
+ return null;
+ }
+ return entityToMap(response.getEntity());
+ } catch (Exception e) {
+ return null;
+ }
+ }
+
+ protected Loop executeGet(String path, int statusCode) {
+ try (CloseableHttpResponse response = execute(new HttpGet(path))) {
+ if (response.getStatusLine().getStatusCode() != statusCode) {
+ return null;
+ }
+ return entityToMap(response.getEntity());
+ } catch (Exception e) {
+ return null;
+ }
+ }
+
+ private Loop entityToMap(HttpEntity httpEntity) {
+ if (httpEntity == null) {
+ return new Loop();
+ }
+ try {
+ return CODER.convert(EntityUtils.toString(httpEntity), Loop.class);
+ } catch (ParseException | IOException e) {
+ LOGGER.error("error reading Entity", e);
+ return new Loop();
+ } catch (CoderException e) {
+ LOGGER.error("cannot convert to Loop Object", e);
+ return new Loop();
+ }
+ }
+
+ @Override
+ public void close() throws IOException {
+ httpclient.close();
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ClampHttpClient.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ClampHttpClient.java
new file mode 100644
index 000000000..eb805054d
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ClampHttpClient.java
@@ -0,0 +1,140 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.httpclient;
+
+import org.apache.http.HttpStatus;
+import org.onap.policy.clamp.controlloop.participant.dcae.model.ExternalComponent;
+import org.onap.policy.clamp.controlloop.participant.dcae.model.Loop;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ClampHttpClient extends AbstractHttpClient {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(ClampHttpClient.class);
+
+ private static final String STATUS = "/restservices/clds/v2/loop/getstatus/";
+ private static final String CREATE = "/restservices/clds/v2/loop/create/%s?templateName=%s";
+ private static final String UPDATE = "/restservices/clds/v2/loop/updateMicroservicePolicy/";
+ private static final String DEPLOY = "/restservices/clds/v2/loop/deploy/";
+ private static final String STOP = "/restservices/clds/v2/loop/stop/";
+ private static final String DELETE = "/restservices/clds/v2/loop/delete/";
+ private static final String UNDEPLOY = "/restservices/clds/v2/loop/undeploy/";
+ public static final String STATUS_NOT_FOUND = "STATUS_NOT_FOUND";
+ public static final String POLICY_NOT_FOUND = "POLICY_NOT_FOUND";
+
+ /**
+ * Constructor.
+ */
+ public ClampHttpClient(RestServerParameters restServerParameters) {
+ super(restServerParameters);
+ }
+
+ /**
+ * Create.
+ *
+ * @param loopName the loopName
+ * @param templateName the templateName
+ * @return the Loop object or null if error occurred
+ */
+ public Loop create(String loopName, String templateName) {
+ return executePost(String.format(CREATE, loopName, templateName), HttpStatus.SC_OK);
+ }
+
+ /**
+ * Update.
+ *
+ * @param loopName the loopName
+ * @param jsonEntity the Json entity
+ * @return true
+ */
+ public boolean update(String loopName, String jsonEntity) {
+ return executePost(UPDATE + loopName, HttpStatus.SC_OK) != null;
+ }
+
+ /**
+ * Deploy.
+ *
+ * @param loopName the loopName
+ * @return true
+ */
+ public boolean deploy(String loopName) { // DCAE
+ return executePut(DEPLOY + loopName, HttpStatus.SC_ACCEPTED);
+ }
+
+ /**
+ * Get Status.
+ *
+ * @param loopName the loopName
+ * @return the Loop object or null if error occurred
+ */
+ public Loop getstatus(String loopName) {
+ return executeGet(STATUS + loopName, HttpStatus.SC_OK);
+ }
+
+ /**
+ * Undeploy.
+ *
+ * @param loopName the loopName
+ * @return true
+ */
+ public boolean undeploy(String loopName) {
+ return executePut(UNDEPLOY + loopName, HttpStatus.SC_ACCEPTED);
+ }
+
+ /**
+ * Stop.
+ *
+ * @param loopName the loopName
+ * @return true
+ */
+ public boolean stop(String loopName) {
+ return executePut(STOP + loopName, HttpStatus.SC_OK);
+ }
+
+ /**
+ * Delete.
+ *
+ * @param loopName the loopName
+ * @return true
+ */
+ public boolean delete(String loopName) {
+ return executePut(DELETE + loopName, HttpStatus.SC_OK);
+ }
+
+ /**
+ * return status from Loop object.
+ *
+ * @param loop Loop
+ * @return status
+ */
+ public static String getStatusCode(Loop loop) {
+ if (loop == null || loop.getComponents() == null || loop.getComponents().isEmpty()) {
+ return STATUS_NOT_FOUND;
+ }
+ ExternalComponent externalComponent = loop.getComponents().get("DCAE");
+ if (externalComponent == null || externalComponent.getComponentState() == null) {
+ return STATUS_NOT_FOUND;
+ }
+
+ return externalComponent.getComponentState().getStateName();
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ConsulDcaeHttpClient.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ConsulDcaeHttpClient.java
new file mode 100644
index 000000000..cd84a2feb
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/httpclient/ConsulDcaeHttpClient.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.httpclient;
+
+import org.apache.http.HttpStatus;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+
+public class ConsulDcaeHttpClient extends AbstractHttpClient {
+
+ private static final String DEPLOY = "/v1/kv/dcae-pmsh:policy";
+
+ /**
+ * constructor.
+ */
+ public ConsulDcaeHttpClient(RestServerParameters restServerParameters) {
+ super(restServerParameters);
+ }
+
+ /**
+ * call consult.
+ *
+ * @param jsonEntity the Entity
+ * @return true
+ */
+ public boolean deploy(String jsonEntity) {
+ return executePut(DEPLOY + jsonEntity, HttpStatus.SC_ACCEPTED);
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/ControlLoopElementHandler.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/ControlLoopElementHandler.java
new file mode 100644
index 000000000..96677f320
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/ControlLoopElementHandler.java
@@ -0,0 +1,197 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.handler;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.time.Instant;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
+import org.onap.policy.clamp.controlloop.participant.dcae.httpclient.ClampHttpClient;
+import org.onap.policy.clamp.controlloop.participant.dcae.httpclient.ConsulDcaeHttpClient;
+import org.onap.policy.clamp.controlloop.participant.dcae.model.Loop;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ControlLoopElementListener;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class handles implementation of controlLoopElement updates.
+ */
+public class ControlLoopElementHandler implements ControlLoopElementListener, Closeable {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(ControlLoopElementHandler.class);
+ private final ClampHttpClient clampClient;
+ private final ConsulDcaeHttpClient consulClient;
+
+ private static final String LOOP = "pmsh_loop";
+ private static final String TEMPLATE = "LOOP_TEMPLATE_k8s_pmsh";
+
+ private static final String BLUEPRINT_DEPLOYED = "BLUEPRINT_DEPLOYED";
+ private static final String MICROSERVICE_INSTALLED_SUCCESSFULLY = "MICROSERVICE_INSTALLED_SUCCESSFULLY";
+ private static final int CHECK_COUNT = 10;
+
+ private static final String BODY_CONSUL =
+ "{ \"subscription\": { \"subscriptionName\": \"subscriptiona\", \"administrativeState\": \"UNLOCKED\", "
+ + "\"fileBasedGP\": 15, \"fileLocation\": \"/pm/pm.xml\", \"nfFilter\": "
+ + "{ \"nfNames\": [ \"^pnf1.*\" ], \"modelInvariantIDs\": "
+ + "[ \"5845y423-g654-6fju-po78-8n53154532k6\", \"7129e420-d396-4efb-af02-6b83499b12f8\" ], "
+ + "\"modelVersionIDs\": [ \"e80a6ae3-cafd-4d24-850d-e14c084a5ca9\" ] }, \"measurementGroups\": "
+ + "[ { \"measurementGroup\": { \"measurementTypes\": [ { \"measurementType\": \"countera\" }, "
+ + "{ \"measurementType\": \"counterb\" } ], \"managedObjectDNsBasic\": [ { \"DN\": \"dna\" }, "
+ + "{ \"DN\": \"dnb\" } ] } }, { \"measurementGroup\": { \"measurementTypes\": "
+ + "[ { \"measurementType\": \"counterc\" }, { \"measurementType\": \"counterd\" } ], "
+ + "\"managedObjectDNsBasic\": " + "[ { \"DN\": \"dnc\" }, { \"DN\": \"dnd\" } ] } } ] } }";
+
+ /**
+ * Constructor.
+ */
+ public ControlLoopElementHandler(RestServerParameters clampParameters, RestServerParameters consulParameters) {
+ clampClient = new ClampHttpClient(clampParameters);
+ consulClient = new ConsulDcaeHttpClient(consulParameters);
+ }
+
+ /**
+ * Callback method to handle a control loop element state change.
+ *
+ * @param controlLoopElementId the ID of the control loop element
+ * @param currentState the current state of the control loop element
+ * @param newState the state to which the control loop element is changing to
+ */
+ @Override
+ public void controlLoopElementStateChange(UUID controlLoopElementId, ControlLoopState currentState,
+ ControlLoopOrderedState newState) {
+ switch (newState) {
+ case UNINITIALISED:
+ Loop loop = clampClient.getstatus(LOOP);
+ if (loop != null) {
+ clampClient.undeploy(LOOP);
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.UNINITIALISED);
+ }
+ break;
+ case PASSIVE:
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.PASSIVE);
+ break;
+ case RUNNING:
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.RUNNING);
+ break;
+ default:
+ LOGGER.debug("Unknown orderedstate {}", newState);
+ break;
+ }
+ }
+
+ private Loop getStatus() throws PfModelException {
+ Loop loop = clampClient.getstatus(LOOP);
+ if (loop == null) {
+ loop = clampClient.create(LOOP, TEMPLATE);
+ }
+ if (loop == null) {
+ throw new PfModelException(null, "");
+ }
+ return loop;
+ }
+
+ private void deploy() throws PfModelException {
+ if (!consulClient.deploy(BODY_CONSUL)) {
+ throw new PfModelException(null, "deploy to consul failed");
+ }
+ if (!clampClient.deploy(LOOP)) {
+ throw new PfModelException(null, "deploy failed");
+ }
+ }
+
+ /**
+ * Callback method to handle an update on a control loop element.
+ *
+ * @param element the information on the control loop element
+ * @param controlLoopDefinition toscaServiceTemplate
+ * @throws PfModelException in case of an exception
+ */
+ @Override
+ public void controlLoopElementUpdate(ControlLoopElement element, ToscaServiceTemplate controlLoopDefinition)
+ throws PfModelException {
+ try {
+ Loop loop = getStatus();
+
+ if (BLUEPRINT_DEPLOYED.equals(ClampHttpClient.getStatusCode(loop))) {
+ deploy();
+ boolean deployedFlag = false;
+ for (int i = 0; i < CHECK_COUNT; i++) {
+ //sleep 10 seconds
+ TimeUnit.SECONDS.sleep(CHECK_COUNT);
+ loop = getStatus();
+ String status = ClampHttpClient.getStatusCode(loop);
+ if (MICROSERVICE_INSTALLED_SUCCESSFULLY.equals(status)) {
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementState(element.getId(), element.getOrderedState(),
+ ControlLoopState.PASSIVE);
+ deployedFlag = true;
+ break;
+ }
+ }
+ if (!deployedFlag) {
+ LOGGER.warn("DCAE is not deployed properly, ClElement state will be UNINITIALISED2PASSIVE");
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementState(element.getId(), element.getOrderedState(),
+ ControlLoopState.UNINITIALISED2PASSIVE);
+ }
+ }
+ } catch (PfModelException e) {
+ throw e;
+ } catch (Exception e) {
+ throw new PfModelException(null, e.getMessage(), e);
+ }
+ }
+
+ /**
+ * Handle controlLoopElement statistics.
+ *
+ * @param controlLoopElementId controlloop element id
+ */
+ @Override
+ public void handleStatistics(UUID controlLoopElementId) {
+ ControlLoopElement clElement = DcaeHandler.getInstance().getDcaeProvider()
+ .getIntermediaryApi().getControlLoopElement(controlLoopElementId);
+ if (clElement != null) {
+ ClElementStatistics clElementStatistics = new ClElementStatistics();
+ clElementStatistics.setControlLoopState(clElement.getState());
+ clElementStatistics.setTimeStamp(Instant.now());
+ DcaeHandler.getInstance().getDcaeProvider().getIntermediaryApi()
+ .updateControlLoopElementStatistics(controlLoopElementId, clElementStatistics);
+ }
+ }
+
+ @Override
+ public void close() throws IOException {
+ clampClient.close();
+ consulClient.close();
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java
new file mode 100644
index 000000000..1963e38b1
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java
@@ -0,0 +1,82 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.handler;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.handler.ControlLoopHandler;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.parameters.ParticipantDcaeParameters;
+import org.onap.policy.common.endpoints.event.comm.TopicSink;
+import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.base.PfModelRuntimeException;
+
+/**
+ * This class handles dcae of participants and control loop elements.
+ *
+ * </p>
+ * It is effectively a singleton that is started at system start.
+ */
+public class DcaeHandler extends ControlLoopHandler {
+
+ private final ParticipantDcaeParameters parameters;
+ @Getter
+ private DcaeProvider dcaeProvider;
+
+ /**
+ * Create a handler.
+ *
+ * @param parameters the parameters for access to the database
+ */
+ public DcaeHandler(ParticipantDcaeParameters parameters) {
+ super(parameters.getDatabaseProviderParameters());
+ this.parameters = parameters;
+ }
+
+ public static DcaeHandler getInstance() {
+ return Registry.get(DcaeHandler.class.getName());
+ }
+
+ @Override
+ public Set<Class<?>> getProviderClasses() {
+ return Collections.emptySet();
+ }
+
+ @Override
+ public void startProviders() {
+ dcaeProvider = new DcaeProvider(parameters);
+ }
+
+ @Override
+ public void stopProviders() {
+ try {
+ dcaeProvider.close();
+ } catch (IOException e) {
+ throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage());
+ } finally {
+ dcaeProvider = null;
+ }
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeProvider.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeProvider.java
new file mode 100644
index 000000000..afaf1c754
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeProvider.java
@@ -0,0 +1,133 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.handler;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoops;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
+import org.onap.policy.clamp.controlloop.models.messages.rest.TypedSimpleResponse;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.parameters.ParticipantDcaeParameters;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
+import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryFactory;
+
+/**
+ * This provider class dcae of participants and control loop elements.
+ */
+public class DcaeProvider implements Closeable {
+ @Getter
+ private final ParticipantIntermediaryApi intermediaryApi;
+
+ private final ControlLoopElementHandler clElementHandler;
+
+ /**
+ * Create a participant dcae provider.
+ *
+ * @throws ControlLoopRuntimeException on errors creating the provider
+ */
+ public DcaeProvider(ParticipantDcaeParameters parameters) throws ControlLoopRuntimeException {
+ intermediaryApi = new ParticipantIntermediaryFactory().createApiImplementation();
+ intermediaryApi.init(parameters.getIntermediaryParameters());
+ clElementHandler = new ControlLoopElementHandler(parameters.getClampClientParameters(),
+ parameters.getConsulClientParameters());
+ intermediaryApi.registerControlLoopElementListener(clElementHandler);
+ }
+
+ @Override
+ public void close() throws IOException {
+ intermediaryApi.close();
+ clElementHandler.close();
+ }
+
+ /**
+ * Get the control loops.
+ *
+ * @param name the controlLoop, null to get all
+ * @param version the controlLoop, null to get all
+ * @return the control loops
+ * @throws ControlLoopException on errors getting the control loops
+ */
+ public ControlLoops getControlLoops(String name, String version) throws ControlLoopException {
+ return intermediaryApi.getControlLoops(name, version);
+ }
+
+ /**
+ * Get the dcae control loop elements.
+ *
+ * @param name the controlLoopElement, null to get all
+ * @param version the controlLoopElement, null to get all
+ * @return the control loop elements
+ * @throws ControlLoopException on errors getting the control loop elements
+ */
+ public Map<UUID, ControlLoopElement> getControlLoopElements(String name, String version)
+ throws ControlLoopException {
+ return intermediaryApi.getControlLoopElements(name, version);
+ }
+
+ /**
+ * Update the given control loop element in the dcae.
+ *
+ * @param element the control loop element to update
+ * @return response simple response returned
+ * @throws ControlLoopException on errors updating the control loop element
+ */
+ public TypedSimpleResponse<ControlLoopElement> updateControlLoopElement(ControlLoopElement element)
+ throws ControlLoopException {
+ TypedSimpleResponse<ControlLoopElement> response = new TypedSimpleResponse<>();
+ response.setResponse(intermediaryApi.updateControlLoopElementState(element.getId(),
+ element.getOrderedState(), element.getState()));
+ return response;
+ }
+
+ /**
+ * Get the current dcae participants.
+ *
+ * @param name the participant, null to get all
+ * @param version the participant, null to get all
+ * @return the list of participants
+ * @throws ControlLoopException on errors getting the participants
+ */
+ public List<Participant> getParticipants(String name, String version) throws ControlLoopException {
+ return intermediaryApi.getParticipants(name, version);
+ }
+
+ /**
+ * Update a dcae participant.
+ *
+ * @param participant the participant to update
+ * @return TypedSimpleResponse simple response
+ * @throws ControlLoopException on errors updating the participant
+ */
+
+ public TypedSimpleResponse<Participant> updateParticipant(Participant participant) throws ControlLoopException {
+ TypedSimpleResponse<Participant> response = new TypedSimpleResponse<>();
+ response.setResponse(
+ intermediaryApi.updateParticipantState(participant.getDefinition(), participant.getParticipantState()));
+ return response;
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameterHandler.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameterHandler.java
new file mode 100644
index 000000000..8d9bef98c
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameterHandler.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.parameters;
+
+import java.io.File;
+import javax.ws.rs.core.Response;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.startstop.ParticipantDcaeCommandLineArguments;
+import org.onap.policy.common.parameters.ValidationResult;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+
+/**
+ * This class handles reading, parsing and validating of control loop runtime parameters from JSON files.
+ */
+public class ParticipantDcaeParameterHandler {
+
+ private static final Coder CODER = new StandardCoder();
+
+ /**
+ * Read the parameters from the parameter file.
+ *
+ * @param arguments the arguments passed to dcae
+ * @return the parameters read from the configuration file
+ * @throws ControlLoopException on parameter exceptions
+ */
+ public ParticipantDcaeParameters getParameters(final ParticipantDcaeCommandLineArguments arguments)
+ throws ControlLoopException {
+ ParticipantDcaeParameters parameters = null;
+
+ // Read the parameters
+ try {
+ // Read the parameters from JSON
+ File file = new File(arguments.getFullConfigurationFilePath());
+ parameters = CODER.decode(file, ParticipantDcaeParameters.class);
+ } catch (final CoderException e) {
+ final String errorMessage = "error reading parameters from \"" + arguments.getConfigurationFilePath()
+ + "\"\n" + "(" + e.getClass().getSimpleName() + ")";
+ throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, errorMessage, e);
+ }
+
+ // The JSON processing returns null if there is an empty file
+ if (parameters == null) {
+ final String errorMessage = "no parameters found in \"" + arguments.getConfigurationFilePath() + "\"";
+ throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, errorMessage);
+ }
+
+ // validate the parameters
+ final ValidationResult validationResult = parameters.validate();
+ if (!validationResult.isValid()) {
+ String returnMessage =
+ "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
+ returnMessage += validationResult.getResult();
+ throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE, returnMessage);
+ }
+
+ return parameters;
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameters.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameters.java
new file mode 100644
index 000000000..beb273086
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/parameters/ParticipantDcaeParameters.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.parameters;
+
+import javax.validation.constraints.NotBlank;
+import lombok.Getter;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters;
+import org.onap.policy.common.endpoints.parameters.RestServerParameters;
+import org.onap.policy.common.parameters.BeanValidationResult;
+import org.onap.policy.common.parameters.ParameterGroupImpl;
+import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.common.parameters.annotations.Valid;
+import org.onap.policy.models.provider.PolicyModelsProviderParameters;
+
+/**
+ * Class to hold all parameters needed for the participant dcae.
+ *
+ */
+@NotNull
+@NotBlank
+@Getter
+public class ParticipantDcaeParameters extends ParameterGroupImpl {
+ @Valid
+ private RestServerParameters clampClientParameters;
+
+ @Valid
+ private RestServerParameters consulClientParameters;
+
+ private ParticipantIntermediaryParameters intermediaryParameters;
+ private PolicyModelsProviderParameters databaseProviderParameters;
+
+ /**
+ * Create the participant dcae parameter group.
+ *
+ * @param name the parameter group name
+ */
+ public ParticipantDcaeParameters(final String name) {
+ super(name);
+ }
+
+ /**
+ * {@inheritDoc}.
+ */
+ @Override
+ public BeanValidationResult validate() {
+ BeanValidationResult result = super.validate();
+ if (result.isValid()) {
+ result.addResult(checkMissingMandatoryParams(clampClientParameters));
+ result.addResult(checkMissingMandatoryParams(consulClientParameters));
+ }
+ return result;
+ }
+
+ private BeanValidationResult checkMissingMandatoryParams(RestServerParameters clientParameters) {
+ BeanValidationResult result = new BeanValidationResult(clientParameters.getName(), clientParameters);
+ if (StringUtils.isBlank(clientParameters.getHost())) {
+ result.addResult("Host", clientParameters.getHost(), ValidationStatus.INVALID, "is blank");
+ }
+ if (StringUtils.isBlank(clientParameters.getName())) {
+ result.addResult("Name", clientParameters.getName(), ValidationStatus.INVALID, "is blank");
+ }
+ if (StringUtils.isBlank(clientParameters.getPassword())) {
+ result.addResult("Password", clientParameters.getPassword(), ValidationStatus.INVALID, "is blank");
+ }
+ if (StringUtils.isBlank(clientParameters.getUserName())) {
+ result.addResult("UserName", clientParameters.getUserName(), ValidationStatus.INVALID, "is blank");
+ }
+ if (clientParameters.getPort() <= 0 || clientParameters.getPort() >= 65535) {
+ result.addResult("Port", clientParameters.getPort(), ValidationStatus.INVALID, "is not valid");
+ }
+ return result;
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/Main.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/Main.java
new file mode 100644
index 000000000..2b47a2c13
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/Main.java
@@ -0,0 +1,151 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.startstop;
+
+import java.util.Arrays;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.common.ControlLoopConstants;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.parameters.ParticipantDcaeParameterHandler;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.parameters.ParticipantDcaeParameters;
+import org.onap.policy.common.utils.resources.MessageConstants;
+import org.onap.policy.common.utils.services.Registry;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class initiates ONAP Policy Framework Control Loop participant component.
+ */
+public class Main {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(Main.class);
+
+ private ParticipantDcaeActivator activator;
+
+ @Getter
+ private ParticipantDcaeParameters parameterGroup;
+
+ /**
+ * Instantiates the control loop participant service.
+ *
+ * @param args the command line arguments
+ */
+ public Main(final String[] args) {
+ final String argumentString = Arrays.toString(args);
+ LOGGER.info("Starting the control loop participant service with arguments - {}", argumentString);
+
+ // Check the arguments
+ final ParticipantDcaeCommandLineArguments arguments = new ParticipantDcaeCommandLineArguments();
+ try {
+ // The arguments return a string if there is a message to print and we should exit
+ final String argumentMessage = arguments.parse(args);
+ if (argumentMessage != null) {
+ LOGGER.info(argumentMessage);
+ return;
+ }
+ // Validate that the arguments are sane
+ arguments.validate();
+
+ // Read the parameters
+ parameterGroup = new ParticipantDcaeParameterHandler().getParameters(arguments);
+
+ // Now, create the activator for the service
+ activator = new ParticipantDcaeActivator(parameterGroup);
+ Registry.register(ControlLoopConstants.REG_CLRUNTIME_ACTIVATOR, activator);
+
+ // Start the activator
+ activator.start();
+ } catch (Exception exp) {
+ if (null != activator) {
+ Registry.unregister(ControlLoopConstants.REG_CLRUNTIME_ACTIVATOR);
+ }
+ throw new ControlLoopRuntimeException(Response.Status.BAD_REQUEST,
+ String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP), exp);
+ }
+
+ // Add a shutdown hook to shut everything down in an orderly manner
+ Runtime.getRuntime().addShutdownHook(new ClRuntimeShutdownHookClass());
+ String successMsg = String.format(MessageConstants.START_SUCCESS_MSG, MessageConstants.POLICY_CLAMP);
+ LOGGER.info(successMsg);
+ }
+
+ /**
+ * Check if main is running.
+ */
+ public boolean isRunning() {
+ return activator != null && activator.isAlive();
+ }
+
+ /**
+ * Shut down Execution.
+ *
+ * @throws ControlLoopException on shutdown errors
+ */
+ public void shutdown() throws ControlLoopException {
+ // clear the parameterGroup variable
+ parameterGroup = null;
+
+ // clear the cl participant activator
+ if (activator != null) {
+ activator.stop();
+ }
+ }
+
+ /**
+ * The Class ClRuntimeShutdownHookClass terminates the control loop participant service
+ * when its run method is called.
+ */
+ private class ClRuntimeShutdownHookClass extends Thread {
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.lang.Runnable#run()
+ */
+ @Override
+ public void run() {
+ if (!activator.isAlive()) {
+ return;
+ }
+
+ try {
+ // Shutdown the control loop participant service and wait for everything to stop
+ activator.stop();
+ } catch (final RuntimeException e) {
+ LOGGER.warn("error occured during shut down of the control loop participant service", e);
+ }
+ }
+ }
+
+ /**
+ * The main method.
+ *
+ * @param args the arguments
+ */
+ public static void main(final String[] args) { // NOSONAR
+ /*
+ * NOTE: arguments are validated by the constructor, thus sonar is disabled.
+ */
+
+ new Main(args);
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeActivator.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeActivator.java
new file mode 100644
index 000000000..d485895cf
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeActivator.java
@@ -0,0 +1,58 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.startstop;
+
+import java.util.concurrent.atomic.AtomicReference;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.handler.DcaeHandler;
+import org.onap.policy.clamp.controlloop.participant.dcae.main.parameters.ParticipantDcaeParameters;
+import org.onap.policy.common.utils.services.ServiceManagerContainer;
+
+/**
+ * This class activates the control loop runtime component as a complete service together with all its controllers,
+ * listeners & handlers.
+ */
+public class ParticipantDcaeActivator extends ServiceManagerContainer {
+ @Getter
+ private final ParticipantDcaeParameters parameters;
+
+ /**
+ * Instantiate the activator for the dcae as a complete service.
+ *
+ * @param parameters the parameters for the control loop runtime service
+ */
+ public ParticipantDcaeActivator(final ParticipantDcaeParameters parameters) {
+ this.parameters = parameters;
+
+ final AtomicReference<DcaeHandler> dcaeHandler = new AtomicReference<>();
+
+ // @formatter:off
+ addAction("Dcae Handler",
+ () -> dcaeHandler.set(new DcaeHandler(parameters)),
+ () -> dcaeHandler.get().close());
+
+ addAction("Dcae Providers",
+ () -> dcaeHandler.get().startProviders(),
+ () -> dcaeHandler.get().stopProviders());
+
+ // @formatter:on
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeCommandLineArguments.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeCommandLineArguments.java
new file mode 100644
index 000000000..0bf382ab1
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/startstop/ParticipantDcaeCommandLineArguments.java
@@ -0,0 +1,151 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.main.startstop;
+
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.URL;
+import java.util.Arrays;
+import javax.ws.rs.core.Response;
+import lombok.Getter;
+import lombok.Setter;
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.DefaultParser;
+import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.ParseException;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.clamp.controlloop.common.startstop.CommonCommandLineArguments;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+
+/**
+ * This class reads and handles command line parameters for the control loop runtime service.
+ *
+ */
+public class ParticipantDcaeCommandLineArguments {
+ private static final String FILE_MESSAGE_PREAMBLE = " file \"";
+ private static final int HELP_LINE_LENGTH = 120;
+
+ private final Options options;
+ private final CommonCommandLineArguments commonCommandLineArguments;
+
+ @Getter()
+ @Setter()
+ private String configurationFilePath = null;
+
+ /**
+ * Construct the options for the dcae participant.
+ */
+ public ParticipantDcaeCommandLineArguments() {
+ options = new Options();
+ commonCommandLineArguments = new CommonCommandLineArguments(options);
+ }
+
+ /**
+ * Construct the options for the CLI editor and parse in the given arguments.
+ *
+ * @param args The command line arguments
+ */
+ public ParticipantDcaeCommandLineArguments(final String[] args) {
+ // Set up the options with the default constructor
+ this();
+
+ // Parse the arguments
+ try {
+ parse(args);
+ } catch (final ControlLoopException e) {
+ throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+ "parse error on dcae participant parameters", e);
+ }
+ }
+
+ /**
+ * Parse the command line options.
+ *
+ * @param args The command line arguments
+ * @return a string with a message for help and version, or null if there is no message
+ * @throws ControlLoopException on command argument errors
+ */
+ public String parse(final String[] args) throws ControlLoopException {
+ // Clear all our arguments
+ setConfigurationFilePath(null);
+ CommandLine commandLine = null;
+ try {
+ commandLine = new DefaultParser().parse(options, args);
+ } catch (final ParseException e) {
+ throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
+ "invalid command line arguments specified : " + e.getMessage());
+ }
+
+ // Arguments left over after Commons CLI does its stuff
+ final String[] remainingArgs = commandLine.getArgs();
+
+ if (remainingArgs.length > 0) {
+ throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
+ "too many command line arguments specified : " + Arrays.toString(args));
+ }
+
+ if (commandLine.hasOption('h')) {
+ return commonCommandLineArguments.help(Main.class.getName(), options);
+ }
+
+ if (commandLine.hasOption('v')) {
+ return commonCommandLineArguments.version();
+ }
+
+ if (commandLine.hasOption('c')) {
+ setConfigurationFilePath(commandLine.getOptionValue('c'));
+ }
+
+ return null;
+ }
+
+ /**
+ * Validate the command line options.
+ *
+ * @throws ControlLoopException on command argument validation errors
+ */
+ public void validate() throws ControlLoopException {
+ commonCommandLineArguments.validate(configurationFilePath);
+ }
+
+ /**
+ * Gets the full expanded configuration file path.
+ *
+ * @return the configuration file path
+ */
+ public String getFullConfigurationFilePath() {
+ return ResourceUtils.getFilePath4Resource(getConfigurationFilePath());
+ }
+
+ /**
+ * Check set configuration file path.
+ *
+ * @return true, if check set configuration file path
+ */
+ public boolean checkSetConfigurationFilePath() {
+ return !StringUtils.isEmpty(configurationFilePath);
+ }
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponent.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponent.java
new file mode 100644
index 000000000..01a514f43
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponent.java
@@ -0,0 +1,35 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.model;
+
+import java.io.Serializable;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class ExternalComponent implements Serializable {
+
+ private static final long serialVersionUID = -10;
+
+ private ExternalComponentState componentState;
+
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponentState.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponentState.java
new file mode 100644
index 000000000..da7360a9b
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/ExternalComponentState.java
@@ -0,0 +1,34 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.model;
+
+import java.io.Serializable;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class ExternalComponentState implements Serializable {
+
+ private static final long serialVersionUID = -10;
+
+ private String stateName;
+}
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/Loop.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/Loop.java
new file mode 100644
index 000000000..d84270500
--- /dev/null
+++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/model/Loop.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.controlloop.participant.dcae.model;
+
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.Map;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Loop implements Serializable {
+
+ private static final long serialVersionUID = -10;
+
+ private Map<String, ExternalComponent> components = new HashMap<>();
+}