org.ehcache.xml.ServiceCreationConfigurationParser Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of ehcache-xml Show documentation
The module containing all XML parsing logic Ehcache 3
There is a newer version: 3.10.8
/*
 * Copyright Terracotta, Inc.
 *
 * 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.
 */

package org.ehcache.xml;

import org.ehcache.config.Configuration;
import org.ehcache.config.FluentConfigurationBuilder;
import org.ehcache.spi.service.ServiceCreationConfiguration;
import org.ehcache.xml.model.ConfigType;
import org.ehcache.xml.model.ServiceType;
import org.ehcache.xml.provider.CacheEventDispatcherFactoryConfigurationParser;
import org.ehcache.xml.provider.CacheManagerPersistenceConfigurationParser;
import org.ehcache.xml.provider.DefaultCopyProviderConfigurationParser;
import org.ehcache.xml.provider.OffHeapDiskStoreProviderConfigurationParser;
import org.ehcache.xml.provider.PooledExecutionServiceConfigurationParser;
import org.ehcache.xml.provider.WriteBehindProviderConfigurationParser;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import java.net.URI;
import java.util.AbstractMap;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import static java.util.Arrays.asList;
import static java.util.stream.Collectors.toMap;
import static org.ehcache.xml.XmlUtil.findMatchingNodeInDocument;

public class ServiceCreationConfigurationParser {

  @SuppressWarnings("deprecation")
  static final Collection> CORE_SERVICE_CREATION_CONFIGURATION_PARSERS = asList(
    new DefaultCopyProviderConfigurationParser(),
    new org.ehcache.xml.provider.DefaultSerializationProviderConfigurationParser(),
    new OffHeapDiskStoreProviderConfigurationParser(),
    new CacheEventDispatcherFactoryConfigurationParser(),
    new org.ehcache.xml.provider.DefaultSizeOfEngineProviderConfigurationParser(),
    new CacheManagerPersistenceConfigurationParser(),
    new PooledExecutionServiceConfigurationParser(),
    new WriteBehindProviderConfigurationParser()
  );

  private final Map, CacheManagerServiceConfigurationParser> extensionParsers;

  public ServiceCreationConfigurationParser(Map, CacheManagerServiceConfigurationParser> extensionParsers) {
    this.extensionParsers = extensionParsers;
  }

  FluentConfigurationBuilder parse(Document document, ConfigType configRoot, ClassLoader classLoader, FluentConfigurationBuilder managerBuilder) throws ClassNotFoundException {
    for (CoreServiceCreationConfigurationParser parser : CORE_SERVICE_CREATION_CONFIGURATION_PARSERS) {
      managerBuilder = parser.parseServiceCreationConfiguration(configRoot, classLoader, managerBuilder);
    }

    Map> parsers = extensionParsers.values().stream()
      .flatMap(parser -> parser.getTargetNamespaces().stream().map(ns -> new AbstractMap.SimpleImmutableEntry<>(ns, parser)))
      .collect(toMap(Map.Entry::getKey, Map.Entry::getValue));

    for (ServiceType serviceType : configRoot.getService()) {
      Element element = (Element) findMatchingNodeInDocument(document, serviceType.getServiceCreationConfiguration()).cloneNode(true);
      URI namespace = URI.create(element.getNamespaceURI());
      CacheManagerServiceConfigurationParser cacheManagerServiceConfigurationParser = parsers.get(namespace);
      if(cacheManagerServiceConfigurationParser == null) {
        throw new IllegalArgumentException("Can't find parser for namespace: " + namespace);
      }
      ServiceCreationConfiguration serviceConfiguration = cacheManagerServiceConfigurationParser.parse(element, classLoader);
      managerBuilder = managerBuilder.withService(serviceConfiguration);
    }

    return managerBuilder;
  }

  ConfigType unparse(Document target, Configuration configuration, ConfigType configType) {
    for (CoreServiceCreationConfigurationParser parser : CORE_SERVICE_CREATION_CONFIGURATION_PARSERS) {
      parser.unparseServiceCreationConfiguration(configuration, configType);
    }

    List services = configType.getService();
    configuration.getServiceCreationConfigurations().forEach(config -> {
      @SuppressWarnings("rawtypes")
      CacheManagerServiceConfigurationParser parser = extensionParsers.get(config.getServiceType());
      if (parser != null) {
        ServiceType serviceType = new ServiceType();
        @SuppressWarnings("unchecked")
        Element element = parser.unparse(target, config);
        serviceType.setServiceCreationConfiguration(element);
        services.add(serviceType);
      }
    });

    return configType;
  }
}