| /* |
| * 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.ignite.internal.configuration; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| import java.util.function.BiFunction; |
| import org.apache.ignite.configuration.ConfigurationProperty; |
| import org.apache.ignite.configuration.NamedConfigurationTree; |
| import org.apache.ignite.configuration.NamedListChange; |
| import org.apache.ignite.configuration.NamedListView; |
| import org.apache.ignite.configuration.RootKey; |
| import org.apache.ignite.configuration.notifications.ConfigurationNamedListListener; |
| import org.apache.ignite.internal.configuration.direct.DirectNamedListProxy; |
| import org.apache.ignite.internal.configuration.direct.DirectPropertyProxy; |
| import org.apache.ignite.internal.configuration.direct.KeyPathNode; |
| import org.apache.ignite.internal.configuration.tree.NamedListNode; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Named configuration wrapper. |
| */ |
| public class NamedListConfiguration<T extends ConfigurationProperty<VIEWT>, VIEWT, CHANGET extends VIEWT> |
| extends DynamicConfiguration<NamedListView<VIEWT>, NamedListChange<VIEWT, CHANGET>> |
| implements NamedConfigurationTree<T, VIEWT, CHANGET> { |
| /** Listeners of property update. */ |
| private final ConfigurationListenerHolder<ConfigurationNamedListListener<VIEWT>> extendedListeners = |
| new ConfigurationListenerHolder<>(); |
| |
| /** Creator of named configuration. */ |
| private final BiFunction<List<String>, String, T> cfgCreator; |
| |
| /** Creator of direct proxies for inner nodes. */ |
| private BiFunction<List<KeyPathNode>, DynamicConfigurationChanger, T> directProxyCreator; |
| |
| /** Placeholder to add listeners for any configuration. */ |
| private final T anyConfig; |
| |
| /** Notification cache. */ |
| private volatile Map<String, T> notificationCache = Collections.emptyMap(); |
| |
| /** |
| * Constructor. |
| * |
| * @param prefix Configuration prefix. |
| * @param key Configuration key. |
| * @param rootKey Root key. |
| * @param changer Configuration changer. |
| * @param listenOnly Only adding listeners mode, without the ability to get or update the property value. |
| * @param cfgCreator Underlying configuration creator function. |
| * @param directProxyCreator Creator for direct proxies of elements. |
| * Required for {@link DirectPropertyProxy#DirectPropertyProxy(List, DynamicConfigurationChanger)}. |
| * @param anyConfig Placeholder to add listeners for any configuration. |
| */ |
| public NamedListConfiguration( |
| List<String> prefix, |
| String key, |
| RootKey<?, ?> rootKey, |
| DynamicConfigurationChanger changer, |
| boolean listenOnly, |
| BiFunction<List<String>, String, T> cfgCreator, |
| BiFunction<List<KeyPathNode>, DynamicConfigurationChanger, T> directProxyCreator, |
| T anyConfig |
| ) { |
| super(prefix, key, rootKey, changer, listenOnly); |
| |
| this.cfgCreator = cfgCreator; |
| this.directProxyCreator = directProxyCreator; |
| this.anyConfig = anyConfig; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @Nullable |
| public T get(String name) { |
| DynamicConfiguration<?, ?> config = getConfig(name); |
| |
| return config == null ? null : (T) config.specificConfigTree(); |
| } |
| |
| @Override |
| @Nullable |
| public T get(UUID internalId) { |
| var value = (NamedListNode<?>) value(); |
| |
| return get(value.keyByInternalId(internalId)); |
| } |
| |
| /** |
| * Get a raw named config. |
| * |
| * @param name Name. |
| * @return Raw config. |
| */ |
| @Nullable |
| public DynamicConfiguration<?, ?> getConfig(String name) { |
| refreshValue(); |
| |
| return (DynamicConfiguration<?, ?>) members.get(name); |
| } |
| |
| @Override |
| public List<UUID> internalIds() { |
| NamedListView<VIEWT> value = value(); |
| |
| return List.copyOf(((NamedListNode<?>) value).internalIds()); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected synchronized void beforeRefreshValue( |
| NamedListView<VIEWT> newValue, |
| @Nullable NamedListView<VIEWT> oldValue |
| ) { |
| Map<String, ConfigurationProperty<?>> oldValues = this.members; |
| Map<String, ConfigurationProperty<?>> newValues = new LinkedHashMap<>(); |
| |
| for (String key : newValue.namedListKeys()) { |
| ConfigurationProperty<?> oldElement = oldValues.get(key); |
| |
| if (oldElement != null) { |
| newValues.put(key, oldElement); |
| } else { |
| newValues.put(key, cfgCreator.apply(keys, key)); |
| } |
| } |
| |
| this.members = newValues; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Map<String, ConfigurationProperty<?>> touchMembers() { |
| Map<String, T> res = notificationCache; |
| |
| refreshValue(); |
| |
| notificationCache = (Map<String, T>) members; |
| |
| return Collections.unmodifiableMap(res); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void listenElements(ConfigurationNamedListListener<VIEWT> listener) { |
| extendedListeners.addListener(listener, changer.notificationCount()); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void stopListenElements(ConfigurationNamedListListener<VIEWT> listener) { |
| extendedListeners.removeListener(listener); |
| } |
| |
| /** |
| * Returns an iterator of the listeners for the {@code notificationNumber} (were added for and before it). |
| * |
| * <p>NOTE: {@link Iterator#remove} - not supported. |
| * |
| * @param notificationNumber Configuration notification listener number. |
| */ |
| public Iterator<ConfigurationNamedListListener<VIEWT>> extendedListeners(long notificationNumber) { |
| return extendedListeners.listeners(notificationNumber); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public T any() { |
| return anyConfig; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Class<?> configType() { |
| throw new UnsupportedOperationException("Not supported."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Class<?> @Nullable [] extensionConfigTypes() { |
| throw new UnsupportedOperationException("Not supported."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public @Nullable Class<?> polymorphicInstanceConfigType() { |
| throw new UnsupportedOperationException("Not supported."); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public NamedListView<VIEWT> value() { |
| return refreshValue(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public NamedConfigurationTree<T, VIEWT, CHANGET> directProxy() { |
| if (listenOnly) { |
| throw listenOnlyException(); |
| } |
| |
| assert directProxyCreator != null; |
| |
| return new DirectNamedListProxy<>(keyPath(), changer, directProxyCreator); |
| } |
| } |