| /* |
| * |
| * 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.qpid.server.model; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| import org.apache.qpid.server.plugin.ConfiguredObjectTypeFactory; |
| import org.apache.qpid.server.plugin.QpidServiceLoader; |
| import org.apache.qpid.server.store.ConfiguredObjectRecord; |
| import org.apache.qpid.server.store.UnresolvedConfiguredObject; |
| import org.apache.qpid.server.util.ServerScopedRuntimeException; |
| |
| public class ConfiguredObjectFactoryImpl implements ConfiguredObjectFactory |
| { |
| private final Map<String, String> _defaultTypes = new HashMap<String, String>(); |
| private final Map<String, Map<String, ConfiguredObjectTypeFactory>> _allFactories = |
| new HashMap<String, Map<String, ConfiguredObjectTypeFactory>>(); |
| private final Map<String, Collection<String>> _supportedTypes = new HashMap<String, Collection<String>>(); |
| |
| private final Model _model; |
| |
| public ConfiguredObjectFactoryImpl(Model model) |
| { |
| _model = model; |
| QpidServiceLoader serviceLoader = |
| new QpidServiceLoader(); |
| Iterable<ConfiguredObjectTypeFactory> allFactories = |
| serviceLoader.instancesOf(ConfiguredObjectTypeFactory.class); |
| for (ConfiguredObjectTypeFactory factory : allFactories) |
| { |
| final Class<? extends ConfiguredObject> categoryClass = factory.getCategoryClass(); |
| final String categoryName = categoryClass.getSimpleName(); |
| |
| Map<String, ConfiguredObjectTypeFactory> categoryFactories = _allFactories.get(categoryName); |
| if (categoryFactories == null) |
| { |
| categoryFactories = new HashMap<String, ConfiguredObjectTypeFactory>(); |
| _allFactories.put(categoryName, categoryFactories); |
| _supportedTypes.put(categoryName, new ArrayList<String>()); |
| ManagedObject annotation = categoryClass.getAnnotation(ManagedObject.class); |
| if (annotation != null && !"".equals(annotation.defaultType())) |
| { |
| _defaultTypes.put(categoryName, annotation.defaultType()); |
| } |
| else |
| { |
| _defaultTypes.put(categoryName, categoryName); |
| } |
| |
| } |
| if (categoryFactories.put(factory.getType(), factory) != null) |
| { |
| throw new ServerScopedRuntimeException( |
| "Misconfiguration - there is more than one factory defined for class " + categoryName |
| + " with type " + factory.getType()); |
| } |
| if (factory.getType() != null) |
| { |
| _supportedTypes.get(categoryName).add(factory.getType()); |
| } |
| } |
| } |
| |
| @Override |
| public <X extends ConfiguredObject<X>> UnresolvedConfiguredObject<X> recover(ConfiguredObjectRecord record, |
| ConfiguredObject<?> parent) |
| { |
| String category = record.getType(); |
| |
| |
| String type = (String) record.getAttributes().get(ConfiguredObject.TYPE); |
| |
| if(type == null || "".equals(type)) |
| { |
| type = getOnlyValidChildTypeIfKnown(parent, category); |
| } |
| |
| ConfiguredObjectTypeFactory<X> factory = getConfiguredObjectTypeFactory(category, type); |
| |
| if(factory == null) |
| { |
| throw new NoFactoryForTypeException(category, type); |
| } |
| |
| return factory.recover(this, record, parent); |
| } |
| |
| private String getOnlyValidChildTypeIfKnown(final ConfiguredObject<?> parent, final String category) |
| { |
| if(parent != null) |
| { |
| final Collection<String> validChildTypes = |
| _model.getTypeRegistry().getValidChildTypes(parent.getTypeClass(), category); |
| if (validChildTypes != null && validChildTypes.size() == 1) |
| { |
| return validChildTypes.iterator().next(); |
| } |
| } |
| return null; |
| |
| } |
| |
| @Override |
| public <X extends ConfiguredObject<X>> X create(Class<X> clazz, |
| final Map<String, Object> attributes, |
| final ConfiguredObject<?> parent) |
| { |
| ConfiguredObjectTypeFactory<X> factory = getConfiguredObjectTypeFactory(clazz, attributes, parent); |
| |
| return factory.create(this, attributes, parent); |
| } |
| |
| |
| @Override |
| public <X extends ConfiguredObject<X>> ListenableFuture<X> createAsync(Class<X> clazz, |
| final Map<String, Object> attributes, |
| final ConfiguredObject<?> parent) |
| { |
| ConfiguredObjectTypeFactory<X> factory = getConfiguredObjectTypeFactory(clazz, attributes, parent); |
| |
| return factory.createAsync(this, attributes, parent); |
| } |
| |
| private <X extends ConfiguredObject<X>> ConfiguredObjectTypeFactory<X> getConfiguredObjectTypeFactory(final Class<X> categoryClass, |
| Map<String, Object> attributes, |
| ConfiguredObject<?> parent) |
| { |
| final String category = categoryClass.getSimpleName(); |
| Map<String, ConfiguredObjectTypeFactory> categoryFactories = _allFactories.get(category); |
| if(categoryFactories == null) |
| { |
| throw new NoFactoryForCategoryException(category); |
| } |
| String type = (String) attributes.get(ConfiguredObject.TYPE); |
| |
| ConfiguredObjectTypeFactory<X> factory; |
| |
| if(type != null) |
| { |
| factory = getConfiguredObjectTypeFactory(category, type); |
| if(factory == null) |
| { |
| throw new NoFactoryForTypeException(category, type); |
| } |
| } |
| else |
| { |
| factory = getConfiguredObjectTypeFactory(category, getOnlyValidChildTypeIfKnown(parent, category)); |
| } |
| return factory; |
| } |
| |
| @Override |
| public <X extends ConfiguredObject<X>> ConfiguredObjectTypeFactory<X> getConfiguredObjectTypeFactory(final String category, |
| final String type) |
| { |
| Map<String, ConfiguredObjectTypeFactory> categoryFactories = _allFactories.get(category); |
| if(categoryFactories == null) |
| { |
| throw new NoFactoryForCategoryException(category); |
| } |
| ConfiguredObjectTypeFactory factory = categoryFactories.get(type); |
| if(factory == null) |
| { |
| if(type == null || "".equals(type.trim())) |
| { |
| factory = categoryFactories.get(_defaultTypes.get(category)); |
| } |
| if(factory == null) |
| { |
| throw new NoFactoryForTypeException(category, type); |
| } |
| } |
| return factory; |
| } |
| |
| @Override |
| public Collection<String> getSupportedTypes(Class<? extends ConfiguredObject> category) |
| { |
| return Collections.unmodifiableCollection(_supportedTypes.get(category.getSimpleName())); |
| } |
| |
| |
| @Override |
| public Model getModel() |
| { |
| return _model; |
| } |
| |
| } |