diff options
Diffstat (limited to 'sdc-tosca/src/main/java/org/onap/sdc/tosca/parser/config/ConfigurationManager.java')
-rw-r--r-- | sdc-tosca/src/main/java/org/onap/sdc/tosca/parser/config/ConfigurationManager.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/sdc-tosca/src/main/java/org/onap/sdc/tosca/parser/config/ConfigurationManager.java b/sdc-tosca/src/main/java/org/onap/sdc/tosca/parser/config/ConfigurationManager.java new file mode 100644 index 0000000..6ad728e --- /dev/null +++ b/sdc-tosca/src/main/java/org/onap/sdc/tosca/parser/config/ConfigurationManager.java @@ -0,0 +1,144 @@ +/*- + * ============LICENSE_START======================================================= + * sdc-tosca + * ================================================================================ + * Copyright (C) 2017 - 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.sdc.tosca.parser.config; + +import com.google.common.base.Charsets; +import com.google.common.io.Resources; +import org.onap.sdc.tosca.parser.utils.YamlToObjectConverter; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.net.URL; +import java.util.HashMap; +import java.util.Map; + + +public class ConfigurationManager { + + private static Logger log = LoggerFactory.getLogger(ConfigurationManager.class.getName()); + + private static final String CONFIGURATION_DIR = "config/"; + private static volatile ConfigurationManager instance; + + + Map<String, Object> configurations = new HashMap<String, Object>(); + + private ConfigurationManager() { + initialConfigObjectsFromFiles(); + } + + private void initialConfigObjectsFromFiles() { + loadConfigurationClass(ErrorConfiguration.class); + loadConfigurationClass(Configuration.class); + loadConfigurationClass(JtoscaValidationIssueConfiguration.class); + } + + private <T> void loadConfigurationClass(Class<T> clazz) { + T object = getObjectFromYaml(clazz); + configurations.put(clazz.getSimpleName(), object); + } + + private <T> void loadConfigurationClass(Class<T> clazz, String fileName) { + T object = getObjectFromYaml(clazz,fileName); + configurations.put(clazz.getSimpleName(), object); + } + + public static <T> T getObjectFromYaml(Class<T> className) { + return getObjectFromYaml(className, null); + } + + public static <T> T getObjectFromYaml(Class<T> className, String fileName) { + + + String configFileName = fileName != null ? fileName : calculateFileName(className); ; + + URL url = Resources.getResource(CONFIGURATION_DIR + configFileName); + String configFileContents = null; + try { + configFileContents = Resources.toString(url, Charsets.UTF_8); + } catch (IOException e) { + log.error("ConfigurationManager - Failed to load configuration file {}", configFileName, e); + } + YamlToObjectConverter yamlToObjectConverter = new YamlToObjectConverter(); + T object = yamlToObjectConverter.convertFromString(configFileContents, className); + + return object; + } + + + public static ConfigurationManager getInstance() { + if (instance == null) { + synchronized (ConfigurationManager.class) { + if (instance == null) { + instance = new ConfigurationManager(); + } + } + } + return instance; + } + + private static <T> String calculateFileName(Class<T> className) { + + String[] words = className.getSimpleName().split("(?=\\p{Upper})"); + + StringBuilder builder = new StringBuilder(); + + // There cannot be a null value returned from "split" - words != null is + // redundant + // if (words != null) { + boolean isFirst = true; + for (int i = 0; i < words.length; i++) { + + String word = words[i]; + if (word != null && !word.isEmpty()) { + if (!isFirst) { + builder.append("-"); + } else { + isFirst = false; + } + builder.append(words[i].toLowerCase()); + } + } + return builder.toString() + ".yaml"; + + /* + * } else { return className.getSimpleName().toLowerCase() + Constants.YAML_SUFFIX; } + */ + + } + + public ErrorConfiguration getErrorConfiguration() { + return (ErrorConfiguration) configurations.get((ErrorConfiguration.class.getSimpleName())); + } + public JtoscaValidationIssueConfiguration getJtoscaValidationIssueConfiguration() { + return (JtoscaValidationIssueConfiguration) configurations.get((JtoscaValidationIssueConfiguration.class.getSimpleName())); + } + public void setJtoscaValidationIssueConfiguration(String fileName) { + loadConfigurationClass(JtoscaValidationIssueConfiguration.class, fileName); + } + public Configuration getConfiguration() { + return (Configuration) configurations.get((Configuration.class.getSimpleName())); + } + public void setErrorConfiguration(String fileName) { + loadConfigurationClass(ErrorConfiguration.class, fileName); + } +} |