org.ehcache.transactions.xml.TxCacheManagerServiceConfigurationParser Maven / Gradle / Ivy

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/*
 * 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.transactions.xml;

import org.ehcache.xml.CacheManagerServiceConfigurationParser;
import org.ehcache.spi.service.Service;
import org.ehcache.spi.service.ServiceCreationConfiguration;
import org.ehcache.transactions.xa.configuration.XAStoreProviderConfiguration;
import org.ehcache.transactions.xa.txmgr.TransactionManagerWrapper;
import org.ehcache.transactions.xa.txmgr.provider.TransactionManagerProvider;
import org.ehcache.transactions.xa.txmgr.provider.TransactionManagerProviderConfiguration;
import org.ehcache.core.util.ClassLoading;
import org.w3c.dom.Element;

import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import java.io.IOException;
import java.net.URI;
import java.net.URL;

/**
 * @author Ludovic Orban
 */
public class TxCacheManagerServiceConfigurationParser implements CacheManagerServiceConfigurationParser {

  private static final URI NAMESPACE = URI.create("http://www.ehcache.org/v3/tx");
  private static final URL XML_SCHEMA = TxCacheManagerServiceConfigurationParser.class.getResource("/ehcache-tx-ext.xsd");

  @Override
  public Source getXmlSchema() throws IOException {
    return new StreamSource(XML_SCHEMA.openStream());
  }

  @Override
  public URI getNamespace() {
    return NAMESPACE;
  }

  @Override
  public ServiceCreationConfiguration parseServiceCreationConfiguration(Element fragment) {
    String localName = fragment.getLocalName();
    if ("jta-tm".equals(localName)) {
      String transactionManagerProviderClassName = fragment.getAttribute("transaction-manager-provider-class");
      try {
        ClassLoader defaultClassLoader = ClassLoading.getDefaultClassLoader();
        Class aClass = Class.forName(transactionManagerProviderClassName, true, defaultClassLoader);
        TransactionManagerProvider transactionManagerProvider = (TransactionManagerProvider) aClass.newInstance();
        TransactionManagerWrapper transactionManagerWrapper = transactionManagerProvider.getTransactionManagerWrapper();
        return (ServiceCreationConfiguration) new TransactionManagerProviderConfiguration(transactionManagerWrapper);
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    } else if ("xa-store-provider".equals(localName)) {
      return (ServiceCreationConfiguration) new XAStoreProviderConfiguration();
    } else {
      throw new RuntimeException("Unsupported XML fragment : " + fragment.getNodeName());
    }
  }
}