| /** |
| * 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.apex.malhar.contrib.cassandra; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.Statement; |
| import java.text.SimpleDateFormat; |
| import java.util.Calendar; |
| import java.util.Map; |
| import java.util.TimeZone; |
| |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| |
| import org.apache.apex.malhar.lib.db.jdbc.JDBCLookupCacheBackedOperatorTest; |
| |
| import com.datatorrent.api.Context.OperatorContext; |
| |
| import static org.apache.apex.malhar.lib.helper.OperatorContextTestHelper.mockOperatorContext; |
| |
| /** |
| * Tests for Cassandra backed lookup cache. |
| */ |
| public class CassandraLookupCacheBackedOperatorTest extends JDBCLookupCacheBackedOperatorTest |
| { |
| private static final String KEYSPACE_NAME = "test"; |
| private static final String CASSANDRA_DB_URL = "jdbc:cassandra://localhost:9160"; |
| private static final String CASSANDRA_DB_DRIVER = "org.apache.cassandra.cql.jdbc.CassandraDriver"; |
| |
| @BeforeClass |
| public static void setupDB() |
| { |
| try { |
| // This will load the JDBC driver, each DB has its own driver |
| Class.forName(CASSANDRA_DB_DRIVER).newInstance(); |
| |
| Connection con = DriverManager.getConnection(CASSANDRA_DB_URL); |
| Statement stmt = con.createStatement(); |
| |
| String useSystem = " USE system"; |
| stmt.executeUpdate(useSystem); |
| ResultSet rs = stmt.executeQuery("SELECT * FROM schema_keyspaces"); |
| |
| boolean foundTest = false; |
| while (rs.next()) { |
| if (KEYSPACE_NAME.equals(rs.getString(1))) { |
| foundTest = true; |
| } |
| } |
| if (!foundTest) { |
| String createKeyspace = "CREATE KEYSPACE " + KEYSPACE_NAME + |
| " WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':3}"; |
| stmt.executeUpdate(createKeyspace); |
| } |
| String useKeyspace = "USE " + KEYSPACE_NAME; |
| stmt.executeUpdate(useKeyspace); |
| |
| String createTable = "CREATE TABLE " + TABLE_NAME + " (col1 int primary key, col2 varchar)"; |
| stmt.executeUpdate(createTable); |
| |
| //populate the database |
| for (Map.Entry<Integer, String> entry : mapping.entrySet()) { |
| String insert = "INSERT INTO " + TABLE_NAME + " (col1, col2) values (" + entry.getKey() + ", '" + entry.getValue() + "')"; |
| stmt.executeUpdate(insert); |
| } |
| |
| //Setup the operator |
| lookupCacheBackedOperator.getStore().setDatabaseUrl(CASSANDRA_DB_URL + "/" + KEYSPACE_NAME); |
| lookupCacheBackedOperator.getStore().setDatabaseDriver(CASSANDRA_DB_DRIVER); |
| |
| Calendar now = Calendar.getInstance(TimeZone.getTimeZone("PST")); |
| now.add(Calendar.SECOND, 15); |
| |
| SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss z"); |
| lookupCacheBackedOperator.getCacheManager().setRefreshTime(format.format(now.getTime())); |
| |
| lookupCacheBackedOperator.output.setSink(sink); |
| |
| OperatorContext context = mockOperatorContext(7); |
| lookupCacheBackedOperator.setup(context); |
| } catch (Exception ex) { |
| logger.error("cassandra setup", ex); |
| } |
| |
| } |
| |
| @AfterClass |
| public static void teardown() |
| { |
| try { |
| Connection con = DriverManager.getConnection(CASSANDRA_DB_URL); |
| Statement stmt = con.createStatement(); |
| |
| String dropKeyspace = "DROP KEYSPACE " + KEYSPACE_NAME; |
| stmt.executeUpdate(dropKeyspace); |
| } catch (Exception ex) { |
| logger.error("cassandra teardown", ex); |
| } |
| } |
| } |