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-rw-r--r--policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheck.java178
-rw-r--r--policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheckFeature.java92
-rw-r--r--policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/RestHealthCheck.java27
3 files changed, 297 insertions, 0 deletions
diff --git a/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheck.java b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheck.java
new file mode 100644
index 00000000..2ed2e075
--- /dev/null
+++ b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheck.java
@@ -0,0 +1,178 @@
+package org.openecomp.policy.drools.healthcheck;
+
+import java.util.ArrayList;
+import java.util.Properties;
+
+import javax.ws.rs.core.Response;
+
+import org.openecomp.policy.drools.http.client.HttpClient;
+import org.openecomp.policy.drools.http.server.HttpServletServer;
+import org.openecomp.policy.drools.persistence.SystemPersistence;
+import org.openecomp.policy.drools.properties.Startable;
+import org.openecomp.policy.drools.system.PolicyEngine;
+
+public interface HealthCheck extends Startable {
+
+ public static class Report {
+ public String name;
+ public String url;
+ public boolean healthy;
+ public int code;
+ public String message;
+
+ @Override
+ public String toString() {
+ StringBuilder builder = new StringBuilder();
+ builder.append("Report [name=");
+ builder.append(name);
+ builder.append(", url=");
+ builder.append(url);
+ builder.append(", healthy=");
+ builder.append(healthy);
+ builder.append(", code=");
+ builder.append(code);
+ builder.append(", message=");
+ builder.append(message);
+ builder.append("]");
+ return builder.toString();
+ }
+ }
+
+ public static class Reports {
+ public boolean healthy;
+ public ArrayList<Report> details = new ArrayList<>();
+
+ @Override
+ public String toString() {
+ StringBuilder builder = new StringBuilder();
+ builder.append("Reports [healthy=");
+ builder.append(healthy);
+ builder.append(", details=");
+ builder.append(details);
+ builder.append("]");
+ return builder.toString();
+ }
+ }
+
+ public Reports healthCheck();
+
+ public static final HealthCheck monitor = new HealthCheckMonitor();
+}
+
+class HealthCheckMonitor implements HealthCheck {
+
+ protected volatile ArrayList<HttpServletServer> servers = new ArrayList<>();
+ protected volatile ArrayList<HttpClient> clients = new ArrayList<>();
+ protected volatile Properties healthCheckProperties = null;
+
+ public Reports healthCheck() {
+ Reports reports = new Reports();
+ reports.healthy = PolicyEngine.manager.isAlive();
+
+ HealthCheck.Report engineReport = new Report();
+ engineReport.healthy = PolicyEngine.manager.isAlive();
+ engineReport.name = "PDP-D";
+ engineReport.url = "self";
+ engineReport.code = (PolicyEngine.manager.isAlive()) ? 200 : 500;
+ engineReport.message = (PolicyEngine.manager.isAlive()) ? "alive" : "not alive";
+ reports.details.add(engineReport);
+
+ for (HttpClient client : clients) {
+ HealthCheck.Report report = new Report();
+ report.name = client.getName();
+ report.url = client.getBaseUrl();
+ report.healthy = true;
+ try {
+ Response response = client.get();
+ report.code = response.getStatus();
+ if (report.code != 200) {
+ report.healthy = false;
+ reports.healthy = false;
+ }
+
+ try {
+ report.message = HttpClient.getBody(response, String.class);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ } catch (Exception e) {
+ report.healthy = false;
+ reports.healthy = false;
+ }
+ reports.details.add(report);
+ }
+ return reports;
+ }
+
+ @Override
+ public boolean start() throws IllegalStateException {
+ try {
+ this.healthCheckProperties = SystemPersistence.manager.getProperties(HealthCheckFeature.CONFIGURATION_PROPERTIES_NAME);
+ this.servers = HttpServletServer.factory.build(healthCheckProperties);
+ this.clients = HttpClient.factory.build(healthCheckProperties);
+
+ for (HttpServletServer server : servers) {
+ try {
+ server.start();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ } catch (Exception e) {
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean stop() throws IllegalStateException {
+ for (HttpServletServer server : servers) {
+ try {
+ server.stop();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+ for (HttpClient client : clients) {
+ try {
+ client.stop();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+ return true;
+ }
+
+ @Override
+ public void shutdown() throws IllegalStateException {
+ this.stop();
+ }
+
+ @Override
+ public synchronized boolean isAlive() {
+ return this.healthCheckProperties != null;
+ }
+
+ public ArrayList<HttpServletServer> getServers() {
+ return this.servers;
+ }
+
+ public ArrayList<HttpClient> getClients() {
+ return this.clients;
+ }
+
+ @Override
+ public String toString() {
+ StringBuilder builder = new StringBuilder();
+ builder.append("HealthCheckMonitor [servers=");
+ builder.append(servers);
+ builder.append(", clients=");
+ builder.append(clients);
+ builder.append("]");
+ return builder.toString();
+ }
+
+}
diff --git a/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheckFeature.java b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheckFeature.java
new file mode 100644
index 00000000..ce1dd90b
--- /dev/null
+++ b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/HealthCheckFeature.java
@@ -0,0 +1,92 @@
+package org.openecomp.policy.drools.healthcheck;
+
+import java.util.Properties;
+
+import org.kie.api.runtime.KieSession;
+import org.openecomp.policy.drools.core.FeatureAPI;
+import org.openecomp.policy.drools.core.PolicyContainer;
+import org.openecomp.policy.drools.core.PolicySession;
+
+public class HealthCheckFeature implements FeatureAPI {
+
+ public static final String CONFIGURATION_PROPERTIES_NAME = "policy-healthcheck";
+
+ @Override
+ public int getSequenceNumber() {
+ return 2;
+ }
+
+ @Override
+ public void globalInit(String[] args, String configDir) {
+ return;
+ }
+
+ @Override
+ public KieSession activatePolicySession(PolicyContainer policyContainer, String name, String kieBaseName) {
+ return null;
+ }
+
+ @Override
+ public void disposeKieSession(PolicySession policySession) {
+ return;
+ }
+
+ @Override
+ public void destroyKieSession(PolicySession policySession) {
+ return;
+ }
+
+ @Override
+ public void beforeStartEngine() throws IllegalStateException {
+ return;
+ }
+
+ @Override
+ public void afterStartEngine() {
+ try {
+ HealthCheck.monitor.start();
+ } catch (IllegalStateException e) {
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ public void beforeShutdownEngine() {
+ return;
+ }
+
+ @Override
+ public void afterShutdownEngine() {
+ try {
+ HealthCheck.monitor.stop();
+ } catch (IllegalStateException e) {
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ public void beforeCreateController(String name, Properties properties) {
+ return;
+ }
+
+ @Override
+ public void afterCreateController(String name) {
+ return;
+ }
+
+ @Override
+ public void beforeStartController(String name) {
+ return;
+ }
+
+ @Override
+ public void afterStartController(String name) {
+ return;
+ }
+
+ @Override
+ public boolean isPersistenceEnabled() {
+ return false;
+ }
+
+}
diff --git a/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/RestHealthCheck.java b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/RestHealthCheck.java
new file mode 100644
index 00000000..e37e758a
--- /dev/null
+++ b/policy-healthcheck/src/main/java/org/openecomp/policy/drools/healthcheck/RestHealthCheck.java
@@ -0,0 +1,27 @@
+package org.openecomp.policy.drools.healthcheck;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+
+import org.openecomp.policy.drools.healthcheck.HealthCheck.Reports;
+
+@Path("/")
+public class RestHealthCheck {
+
+ @GET
+ @Path("{a:healthcheck|test}")
+ @Produces(MediaType.APPLICATION_JSON)
+ public Reports healthcheck() {
+ Reports reports = HealthCheck.monitor.healthCheck();
+ return reports;
+ }
+
+ @GET
+ @Path("healthcheck/configuration")
+ @Produces(MediaType.APPLICATION_JSON)
+ public HealthCheck configuration() {
+ return HealthCheck.monitor;
+ }
+}