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Diffstat (limited to 'policy-endpoints/src/main/java/org/onap/policy/common/endpoints/utils/ParameterUtils.java')
-rw-r--r-- | policy-endpoints/src/main/java/org/onap/policy/common/endpoints/utils/ParameterUtils.java | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/utils/ParameterUtils.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/utils/ParameterUtils.java new file mode 100644 index 00000000..9e7c69a4 --- /dev/null +++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/utils/ParameterUtils.java @@ -0,0 +1,77 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2019 Nordix Foundation. + * ================================================================================ + * 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.common.endpoints.utils; + +import java.util.List; +import java.util.Properties; + +import org.onap.policy.common.endpoints.parameters.TopicParameterGroup; +import org.onap.policy.common.endpoints.parameters.TopicParameters; + +/** + * This is common utility class with utility methods for parameters. + * + * @author Ajith Sreekumar (ajith.sreekumar@est.tech) + */ +public abstract class ParameterUtils { + + /** + * Private constructor used to prevent sub class instantiation. + */ + private ParameterUtils() { + // Prevent construction of this class + } + + /** + * Create topic properties object from the parameters. + * + * @param topicParameters the topic parameters read from config file + * @return the topic properties object + */ + public static Properties getTopicProperties(TopicParameterGroup topicParameters) { + Properties topicProperties = new Properties(); + List<TopicParameters> topicSources = topicParameters.getTopicSources(); + List<TopicParameters> topicSinks = topicParameters.getTopicSinks(); + + // for each topicCommInfrastructure, there could be multiple topics (specified as comma separated string) + // for each such topics, there could be multiple servers (specified as comma separated string) + for (TopicParameters source : topicSources) { + addTopicProperties(topicProperties, ".source.topics", source); + } + for (TopicParameters sink : topicSinks) { + addTopicProperties(topicProperties, ".sink.topics", sink); + } + + return topicProperties; + } + + private static void addTopicProperties(Properties topicProperties, String keyName, TopicParameters topicParameter) { + String propKey = topicParameter.getTopicCommInfrastructure() + keyName; + if (topicProperties.containsKey(propKey)) { + topicProperties.setProperty(propKey, + topicProperties.getProperty(propKey) + "," + topicParameter.getTopic()); + } else { + topicProperties.setProperty(propKey, topicParameter.getTopic()); + } + topicProperties.setProperty(propKey + "." + topicParameter.getTopic() + ".servers", + String.join(",", topicParameter.getServers())); + } +} |