1 files changed, 110 insertions, 0 deletions
diff --git a/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/TopicPropertyBuilder.java b/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/TopicPropertyBuilder.java
new file mode 100644
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+++ b/policy-endpoints/src/test/java/org/onap/policy/common/endpoints/event/comm/bus/TopicPropertyBuilder.java
@@ -0,0 +1,110 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP Policy Engine - Common Modules
+ * ================================================================================
+ * Copyright (C) 2018 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.Properties;
+
+/**
+ * Builder of properties used when configuring topics.
+ */
+public class TopicPropertyBuilder {
+    private final Properties properties = new Properties();
+    private final String prefix;
+    private String topicPrefix;
+
+    /**
+     * Constructs the object.
+     *
+     * @param prefix the prefix for the properties to be built
+     */
+    public TopicPropertyBuilder(String prefix) {
+        this.prefix = prefix;
+        properties.setProperty(prefix, "");
+    }
+
+    /**
+     * Constructs the properties from the builder.
+     *
+     * @return a copy of the properties
+     */
+    public Properties build() {
+        Properties props = new Properties();
+        props.putAll(properties);
+
+        return props;
+    }
+
+    /**
+     * Adds a topic to the list of topics. Also sets the current topic so that subsequent
+     * invocations of property methods will manipulate the topic's properties.
+     *
+     * @param topic the topic to be added
+     * @return this builder
+     */
+    public TopicPropertyBuilder addTopic(String topic) {
+        // add topic to the list of topics
+        String topicList = properties.getProperty(prefix);
+        if (!topicList.isEmpty()) {
+            topicList += ",";
+        }
+        topicList += topic;
+        properties.setProperty(prefix, topicList);
+
+        setTopic(topic);
+
+        return this;
+    }
+
+    /**
+     * Sets the topic for which subsequent properties will be managed.
+     *
+     * @param topic the topic
+     * @return this builder
+     */
+    public TopicPropertyBuilder setTopic(String topic) {
+        this.topicPrefix = prefix + "." + topic;
+        return this;
+    }
+
+    /**
+     * Sets a topic's property.
+     *
+     * @param name name of the property
+     * @param value value to which the property should be set
+     * @return this builder
+     */
+    public TopicPropertyBuilder setTopicProperty(String name, Object value) {
+        properties.setProperty(topicPrefix + name, value.toString());
+        return this;
+    }
+
+    /**
+     * Removes a topic's property.
+     *
+     * @param name name of the property
+     * @return this builder
+     */
+    public TopicPropertyBuilder removeTopicProperty(String name) {
+        properties.remove(topicPrefix + name);
+        return this;
+    }
+}
+