Fixed MSB Registration Failure
[holmes/common.git] / holmes-actions / src / main / java / org / onap / holmes / common / utils / MsbRegister.java
diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java b/holmes-actions/src/main/java/org/onap/holmes/common/utils/MsbRegister.java
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+/**
+ * Copyright 2017-2020 ZTE Corporation.
+ * <p>
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.
+ */
+
+package org.onap.holmes.common.utils;
+
+import org.apache.commons.lang3.StringUtils;
+import org.eclipse.jetty.http.HttpStatus;
+import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.config.MicroServiceConfig;
+import org.onap.holmes.common.exception.CorrelationException;
+import org.onap.msb.sdk.discovery.entity.MicroServiceFullInfo;
+import org.onap.msb.sdk.discovery.entity.MicroServiceInfo;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.inject.Inject;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.util.concurrent.TimeUnit;
+
+import static org.onap.holmes.common.utils.JerseyClient.PROTOCOL_HTTP;
+import static org.onap.holmes.common.utils.JerseyClient.PROTOCOL_HTTPS;
+
+@Service
+public class MsbRegister {
+    private static final Logger log = LoggerFactory.getLogger(MsbRegister.class);
+
+    private JerseyClient jerseyClient;
+
+    @Inject
+    public MsbRegister(JerseyClient jerseyClient) {
+        this.jerseyClient = jerseyClient;
+    }
+
+    public void register2Msb(MicroServiceInfo msinfo) throws CorrelationException {
+        String[] msbAddrInfo = MicroServiceConfig.getMsbIpAndPort();
+        boolean isHttpsEnabled = StringUtils.isNotBlank(msbAddrInfo[1])
+                && msbAddrInfo[1].equals("443");
+
+        Client client = jerseyClient.client(isHttpsEnabled);
+        WebTarget target = client.target(String.format("%s://%s:%s/api/microservices/v1/services",
+                isHttpsEnabled ? PROTOCOL_HTTPS : PROTOCOL_HTTP, msbAddrInfo[0], msbAddrInfo[1]));
+
+        log.info("Start to register Holmes Service to MSB...");
+
+        MicroServiceFullInfo microServiceFullInfo = null;
+        int retry = 0;
+        int interval = 5;
+        while (null == microServiceFullInfo && retry < 20) {
+            log.info("Holmes Service Registration. Retry: " + retry++);
+
+            Response response = target.queryParam("createOrUpdate", true)
+                    .request(MediaType.APPLICATION_JSON)
+                    .post(Entity.entity(msinfo, MediaType.APPLICATION_JSON));
+
+            if (response != null) {
+                String ret = response.readEntity(String.class);
+                int statusCode = response.getStatus();
+                log.info(String.format("=========MSB REG=========\nStatus Code: %d\nInformation: %s", statusCode, ret));
+                if (HttpStatus.isSuccess(statusCode)) {
+                    microServiceFullInfo = GsonUtil.jsonToBean(ret, MicroServiceFullInfo.class);
+                }
+            }
+
+            if (null == microServiceFullInfo) {
+                log.warn(String.format("Failed to register the service to MSB. Sleep %ds and try again.", interval));
+                threadSleep(TimeUnit.SECONDS.toSeconds(interval));
+                interval += 5;
+            } else {
+                log.info("Registration succeeded!");
+                break;
+            }
+        }
+
+        if (null == microServiceFullInfo) {
+            throw new CorrelationException("Failed to register the service to MSB!");
+        }
+
+        log.info("Service registration completed.");
+    }
+
+    private void threadSleep(long second) {
+        log.info("Start sleeping...");
+        try {
+            TimeUnit.SECONDS.sleep(second);
+        } catch (InterruptedException error) {
+            log.error("thread sleep error message:" + error.getMessage(), error);
+            Thread.currentThread().interrupt();
+        }
+        log.info("Wake up.");
+    }
+}
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