1 files changed, 112 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/NoopTopicFactory.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/NoopTopicFactory.java
new file mode 100644
index 00000000..98b6ed6f
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/NoopTopicFactory.java
@@ -0,0 +1,112 @@
+/*
+ * ============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.common.endpoints.event.comm.bus;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Properties;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
+
+/**
+ * Noop Topic Factory.
+ */
+public abstract class NoopTopicFactory<T extends NoopTopicEndpoint> extends TopicBaseHashedFactory<T> {
+
+    /**
+     * Get Topics Property Name.
+     *
+     * @return property name.
+     */
+    protected abstract String getTopicsPropertyName();
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    protected List<String> getTopicNames(Properties properties) {
+        String topics = properties.getProperty(getTopicsPropertyName());
+        if (topics == null || topics.isEmpty()) {
+            return new ArrayList<>();
+        }
+
+        return Arrays.asList(topics.split("\\s*,\\s*"));
+    }
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    protected List<String> getServers(String topicName, Properties properties) {
+        String servers =
+            properties.getProperty(getTopicsPropertyName() + "." + topicName
+                + PolicyEndPointProperties.PROPERTY_TOPIC_SERVERS_SUFFIX);
+
+        if (servers == null || servers.isEmpty()) {
+            servers = CommInfrastructure.NOOP.toString();
+        }
+
+        return new ArrayList<>(Arrays.asList(servers.split("\\s*,\\s*")));
+    }
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    protected boolean isManaged(String topicName, Properties properties) {
+        String managedString =
+            properties.getProperty(getTopicsPropertyName()
+                + "." + topicName + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX);
+
+        boolean managed = true;
+        if (managedString != null && !managedString.isEmpty()) {
+            managed = Boolean.parseBoolean(managedString);
+        }
+
+        return managed;
+    }
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    public T build(List<String> serverList, String topic, boolean managed) {
+        List<String> servers;
+        if (serverList == null || serverList.isEmpty()) {
+            servers = Collections.singletonList(CommInfrastructure.NOOP.toString());
+        } else {
+            servers = serverList;
+        }
+
+        return super.build(servers, topic, managed);
+    }
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    public String toString() {
+        return "NoopTopicFactory[ " + super.toString() + " ]";
+    }
+}
+