| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package org.apache.ambari.server.stack; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.ambari.server.state.PropertyInfo; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * Encapsulates configuration properties and attributes for a single type. |
| */ |
| public class ConfigurationInfo implements Validable{ |
| /** |
| * Collection of properties |
| */ |
| private Collection<PropertyInfo> properties; |
| |
| /** |
| * Map of attribute category to a map of attribute name/value |
| */ |
| private Map<String, Map<String, String>> attributes; |
| |
| /** |
| * Logger instance |
| */ |
| private final static Logger LOG = LoggerFactory.getLogger(ConfigurationInfo.class); |
| |
| /** |
| * validity flag |
| */ |
| protected boolean valid = true; |
| |
| /** |
| * Constructor. |
| * |
| * @param properties configuration properties |
| * @param attributes configuration attributes |
| */ |
| public ConfigurationInfo(Collection<PropertyInfo> properties, Map<String, String> attributes) { |
| this.properties = properties; |
| setAttributes(attributes); |
| } |
| |
| /** |
| * Obtain the configuration properties. |
| * |
| * @return collection of properties |
| */ |
| public Collection<PropertyInfo> getProperties() { |
| return properties; |
| } |
| |
| /** |
| * Obtain the configuration attributes. |
| * |
| * @return map of attribute category to a map of attribute names/values |
| */ |
| public Map<String, Map<String, String>> getAttributes() { |
| return attributes; |
| } |
| |
| /** |
| * Set the default value of all type attributes which are not already specified. |
| */ |
| public void ensureDefaultAttributes() { |
| Map<String, String> supportsAttributes = attributes.get(Supports.KEYWORD); |
| for (Supports supportsProperty : Supports.values()) { |
| String propertyName = supportsProperty.getPropertyName(); |
| if (! supportsAttributes.containsKey(propertyName)) { |
| supportsAttributes.put(propertyName, supportsProperty.getDefaultValue()); |
| } |
| } |
| } |
| |
| /** |
| * |
| * Set the specified configuration type attributes. |
| * |
| * @param specifiedAttributes attributes that have been specified in configuration |
| */ |
| private void setAttributes(Map<String, String> specifiedAttributes) { |
| Map<String, Map<String, String>> attributes = new HashMap<String, Map<String, String>>(); |
| Map<String, String> supportsAttributes = new HashMap<String, String>(); |
| attributes.put(Supports.KEYWORD, supportsAttributes); |
| |
| for (Map.Entry<String, String> entry : specifiedAttributes.entrySet()) { |
| String attributeName = entry.getKey(); |
| Supports s = Supports.attributeNameValueOf(attributeName); |
| if (s != null) { |
| supportsAttributes.put(s.getPropertyName(), |
| Boolean.valueOf(entry.getValue()).toString()); |
| } else { |
| LOG.warn("Unknown configuration type attribute is specified: {}={}", attributeName, entry.getValue()); |
| } |
| } |
| this.attributes = attributes; |
| } |
| |
| @Override |
| public boolean isValid() { |
| return valid; |
| } |
| |
| @Override |
| public void setValid(boolean valid) { |
| this.valid = valid; |
| } |
| |
| private Set<String> errorSet = new HashSet<String>(); |
| |
| @Override |
| public void addError(String error) { |
| errorSet.add(error); |
| } |
| |
| @Override |
| public Collection<String> getErrors() { |
| return errorSet; |
| } |
| |
| @Override |
| public void addErrors(Collection<String> errors) { |
| this.errorSet.addAll(errors); |
| } |
| |
| /** |
| * Service configuration-types can support different abilities. This |
| * enumerates the various abilities that configuration-types can support. |
| * |
| * For example, Hadoop configuration types like 'core-site' and 'hdfs-site' |
| * can support the ability to define certain configs as 'final'. |
| */ |
| public static enum Supports { |
| |
| FINAL("supports_final"), |
| ADDING_FORBIDDEN("supports_adding_forbidden"), |
| DO_NOT_EXTEND("supports_do_not_extend"); |
| |
| public static final String KEYWORD = "supports"; |
| |
| private String defaultValue; |
| private String xmlAttributeName; |
| |
| private Supports(String xmlAttributeName) { |
| this(xmlAttributeName, Boolean.FALSE.toString()); |
| } |
| |
| private Supports(String xmlAttributeName, String defaultValue) { |
| this.defaultValue = defaultValue; |
| this.xmlAttributeName = xmlAttributeName; |
| } |
| |
| public String getDefaultValue() { |
| return defaultValue; |
| } |
| |
| public String getXmlAttributeName() { |
| return xmlAttributeName; |
| } |
| |
| public String getPropertyName() { |
| return name().toLowerCase(); |
| } |
| |
| public static Supports attributeNameValueOf(String attributeName) { |
| for (Supports s : values()) { |
| if (s.getXmlAttributeName().equals(attributeName)) { |
| return s; |
| } |
| } |
| return null; |
| } |
| } |
| } |