| /* |
| * 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.processors.cache; |
| |
| import java.lang.reflect.Field; |
| import java.util.HashMap; |
| import java.util.Map; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.configuration.NearCacheConfiguration; |
| import org.apache.ignite.configuration.SerializeSeparately; |
| import org.apache.ignite.internal.GridKernalContext; |
| import org.apache.ignite.internal.IgniteFeatures; |
| import org.apache.ignite.internal.util.typedef.T2; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.marshaller.Marshaller; |
| |
| /** |
| * Splits cache configuration into two parts that can be serialized, deserialized separately. |
| * This eliminates the need to deserialize part of the configuration and therefore, |
| * it does not require user classes on non-affinity nodes. |
| */ |
| public class CacheConfigurationSplitterImpl implements CacheConfigurationSplitter { |
| /** Cache configuration to hold default field values. */ |
| private static final CacheConfiguration<?, ?> DEFAULT_CACHE_CONFIG = new CacheConfiguration<>(); |
| |
| /** Near cache configuration to hold default field values. */ |
| private static final NearCacheConfiguration<?, ?> DEFAULT_NEAR_CACHE_CONFIG = new NearCacheConfiguration<>(); |
| |
| /** Fields set for V1 splitter protocol. */ |
| private static final String[] FIELDS_V1 = {"evictPlcFactory", "evictFilter", "storeFactory", "storeSesLsnrs"}; |
| |
| /** Marshaller. */ |
| private final Marshaller marshaller; |
| |
| /** Kernal context. */ |
| private final GridKernalContext ctx; |
| |
| /** |
| * Creates a new instance of splitter. |
| * |
| * @param ctx Kernal context. |
| * @param marshaller Marshaller to be used for seserialization. |
| */ |
| public CacheConfigurationSplitterImpl(GridKernalContext ctx, Marshaller marshaller) { |
| this.marshaller = marshaller; |
| this.ctx = ctx; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public T2<CacheConfiguration, CacheConfigurationEnrichment> split(CacheConfiguration ccfg) { |
| try { |
| CacheConfiguration cfgCp = new CacheConfiguration(ccfg); |
| |
| CacheConfigurationEnrichment enrichment = buildEnrichment( |
| CacheConfiguration.class, cfgCp, DEFAULT_CACHE_CONFIG); |
| |
| return new T2<>(cfgCp, enrichment); |
| } |
| catch (Exception e) { |
| throw new IgniteException("Failed to split cache configuration", e); |
| } |
| } |
| |
| /** |
| * Builds {@link CacheConfigurationEnrichment} from given config. |
| * It extracts all field values to enrichment object replacing values of that fields with default. |
| * |
| * @param cfgCls Configuration class. |
| * @param cfg Configuration to build enrichment from. |
| * @param dfltCfg Default configuration to replace enriched values with default. |
| * @param <T> Configuration class. |
| * @return Enrichment object for given config. |
| * @throws IllegalAccessException If failed. |
| */ |
| private <T> CacheConfigurationEnrichment buildEnrichment( |
| Class<T> cfgCls, |
| T cfg, |
| T dfltCfg |
| ) throws IllegalAccessException { |
| Map<String, byte[]> enrichment = new HashMap<>(); |
| Map<String, String> fieldClsNames = new HashMap<>(); |
| |
| for (Field field : cfgCls.getDeclaredFields()) { |
| if (supports(field)) { |
| field.setAccessible(true); |
| |
| Object val = field.get(cfg); |
| |
| byte[] serializedVal = serialize(field.getName(), val); |
| |
| enrichment.put(field.getName(), serializedVal); |
| |
| fieldClsNames.put(field.getName(), val != null ? val.getClass().getName() : null); |
| |
| // Replace field in original configuration with default value. |
| field.set(cfg, field.get(dfltCfg)); |
| } |
| } |
| |
| return new CacheConfigurationEnrichment(enrichment, fieldClsNames); |
| } |
| |
| /** |
| * Returns {@code true} if this splitter supports the specified field. |
| * |
| * @param field Field. |
| * @return True if splitter serialization is supported, false otherwise. |
| */ |
| private boolean supports(Field field) { |
| if (field.getDeclaredAnnotation(SerializeSeparately.class) == null) |
| return false; |
| |
| if (IgniteFeatures.allNodesSupport(ctx.config().getDiscoverySpi(), IgniteFeatures.SPLITTED_CACHE_CONFIGURATIONS_V2)) |
| return true; |
| |
| for (String filedName : FIELDS_V1) { |
| if (filedName.equals(field.getName())) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * @param fieldName Field name to serialize. |
| * @param val Field value. |
| * |
| * @return Serialized value. |
| */ |
| private byte[] serialize(String fieldName, Object val) { |
| try { |
| return U.marshal(marshaller, val); |
| } |
| catch (Exception e) { |
| throw new IgniteException("Failed to serialize field [fieldName=" + fieldName + ", value=" + val + ']', e); |
| } |
| } |
| } |