| /* |
| * 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.webtest; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.transaction.RollbackException; |
| import javax.transaction.TransactionManager; |
| import com.ibm.tx.jta.TransactionManagerFactory; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.Ignition; |
| |
| /** |
| * Servlet to test working of Ignite transactions inside web-application environment. |
| */ |
| @SuppressWarnings("TooBroadScope") |
| public class TestJtaTxServlet extends HttpServlet { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** {@inheritDoc} */ |
| @Override protected void doGet(final HttpServletRequest req, final HttpServletResponse res) |
| throws ServletException, IOException { |
| final int key1 = 1; |
| final int key2 = 2; |
| |
| final String correctVal1 = "correct_val1"; |
| final String correctVal2 = "correct_val1"; |
| final String incorrectVal1 = "incorrect_val2"; |
| final String incorrectVal2 = "incorrect_val2"; |
| |
| final PrintWriter writer = res.getWriter(); |
| |
| try { |
| final Ignite ignite = Ignition.ignite(); |
| |
| final IgniteCache<Integer, String> cache = ignite.cache("tx"); |
| |
| TransactionManager tmMgr = TransactionManagerFactory.getTransactionManager(); |
| |
| tmMgr.begin(); |
| |
| cache.put(key1, correctVal1); |
| cache.put(key2, correctVal2); |
| |
| writer.println("Transaction #1. Put values [key1=" + key1 + ", val1=" + cache.get(key1) |
| + ", key2=" + key2 + ", val2=" + cache.get(key2) + "]"); |
| writer.println(); |
| |
| tmMgr.commit(); |
| |
| try { |
| tmMgr.begin(); |
| |
| writer.println("Transaction #2. Current values [key1=" + key1 + ", val1=" + cache.get(key1) |
| + ", key2=" + key2 + ", val2=" + cache.get(key2) + "]"); |
| |
| cache.put(key1, incorrectVal1); |
| cache.put(key2, incorrectVal2); |
| |
| writer.println("Transaction #2. Put values [key1=" + key1 + ", val1=" + cache.get(key1) |
| + ", key2=" + key2 + ", val2=" + cache.get(key2) + "]"); |
| |
| tmMgr.setRollbackOnly(); |
| |
| tmMgr.commit(); |
| } |
| catch (final RollbackException ignored) { |
| writer.println("Transaction #2. setRollbackOnly [key1=" + key1 + ", val1=" + cache.get(key1) |
| + ", key2=" + key2 + ", val2=" + cache.get(key2) + "]"); |
| } |
| |
| writer.println(); |
| |
| tmMgr.begin(); |
| |
| writer.println("Transaction #2. Current values [key1=" + key1 + ", val1=" + cache.get(key1) |
| + ", key2=" + key2 + ", val2=" + cache.get(key2) + "]"); |
| |
| tmMgr.commit(); |
| } |
| catch (final Throwable e) { |
| e.printStackTrace(writer); |
| } |
| } |
| } |