Remove ClusterSingletonServiceRegistrationHelper

[bgpcep.git] / bgp / rib-spi / src / main / java / org / opendaylight / protocol / bgp / rib / spi / util / ClusterSingletonServiceRegistrationHelper.java

diff --git a/bgp/rib-spi/src/main/java/org/opendaylight/protocol/bgp/rib/spi/util/ClusterSingletonServiceRegistrationHelper.java b/bgp/rib-spi/src/main/java/org/opendaylight/protocol/bgp/rib/spi/util/ClusterSingletonServiceRegistrationHelper.java
deleted file mode 100644 (file)
index 34edde1..0000000
--- a/bgp/rib-spi/src/main/java/org/opendaylight/protocol/bgp/rib/spi/util/ClusterSingletonServiceRegistrationHelper.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.protocol.bgp.rib.spi.util;
-
-import com.google.common.util.concurrent.Uninterruptibles;
-import java.util.concurrent.TimeUnit;
-import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
-import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
-import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceRegistration;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Utility class which provides helper functionality for ClusterSingletonService.
- */
-public final class ClusterSingletonServiceRegistrationHelper {
-    private static final Logger LOG = LoggerFactory.getLogger(ClusterSingletonServiceRegistrationHelper.class);
-    private static final int MAX_REGISTRATION_ATTEMPTS = 10;
-    private static final int SLEEP_TIME_MILLIS = MAX_REGISTRATION_ATTEMPTS;
-
-    private ClusterSingletonServiceRegistrationHelper() {
-        // Hidden on purpose
-    }
-
-    /**
-     * This helper function wraps
-     * {@link ClusterSingletonServiceProvider#registerClusterSingletonService(ClusterSingletonService)} in order to
-     * execute repeated registration attempts while catching RuntimeException. If registration is not successful,
-     * RuntimeException is re-thrown.
-     *
-     * @param singletonProvider Cluster Singleton Service Provider
-     * @param clusterSingletonService Cluster Singleton Service
-     * @param maxAttempts             Upper bound for registration retries count.
-     * @param sleepTime               Sleep time between registration retries in milliseconds.
-     * @return Registration
-     */
-    @SuppressWarnings("checkstyle:IllegalCatch")
-    public static ClusterSingletonServiceRegistration registerSingletonService(
-        final ClusterSingletonServiceProvider singletonProvider,
-        final ClusterSingletonService clusterSingletonService, final int maxAttempts, final int sleepTime) {
-        int attempts = maxAttempts;
-        while (true) {
-            try {
-                return singletonProvider.registerClusterSingletonService(clusterSingletonService);
-            } catch (final RuntimeException e) {
-                if (attempts == 0) {
-                    LOG.error("Giving up after {} registration attempts for service {}.", maxAttempts,
-                        clusterSingletonService, e);
-                    throw e;
-                }
-                attempts--;
-                LOG.warn("Failed to register {} service to ClusterSingletonServiceProvider. Try again in {} ms.",
-                    clusterSingletonService, sleepTime, e);
-                Uninterruptibles.sleepUninterruptibly(sleepTime, TimeUnit.MILLISECONDS);
-            }
-        }
-    }
-
-    /**
-     * This helper function wraps
-     * {@link ClusterSingletonServiceProvider#registerClusterSingletonService(ClusterSingletonService)} in order to
-     * execute repeated registration attempts while catching RuntimeException. If registration is not successful,
-     * RuntimeException is re-thrown. 10 registration attempts will be tried with 10 ms pause between each
-     * other.
-     *
-     * @param singletonProvider Cluster Singleton Service Provider
-     * @param clusterSingletonService Cluster Singleton Service
-     * @return Registration
-     */
-    public static ClusterSingletonServiceRegistration registerSingletonService(final ClusterSingletonServiceProvider
-        singletonProvider, final ClusterSingletonService clusterSingletonService) {
-        return ClusterSingletonServiceRegistrationHelper.registerSingletonService(singletonProvider,
-            clusterSingletonService, MAX_REGISTRATION_ATTEMPTS, SLEEP_TIME_MILLIS);
-    }
-}