| /* |
| * 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.camel.processor.idempotent.jdbc; |
| |
| import java.sql.Timestamp; |
| |
| import javax.sql.DataSource; |
| |
| import org.springframework.dao.DataAccessException; |
| import org.springframework.jdbc.core.JdbcTemplate; |
| import org.springframework.transaction.TransactionStatus; |
| import org.springframework.transaction.support.TransactionCallback; |
| import org.springframework.transaction.support.TransactionTemplate; |
| |
| /** |
| * Default implementation of {@link AbstractJdbcMessageIdRepository} |
| */ |
| public class JdbcMessageIdRepository extends AbstractJdbcMessageIdRepository { |
| |
| private boolean createTableIfNotExists = true; |
| private String tableExistsString = "SELECT 1 FROM CAMEL_MESSAGEPROCESSED WHERE 1 = 0"; |
| private String createString = "CREATE TABLE CAMEL_MESSAGEPROCESSED (processorName VARCHAR(255), messageId VARCHAR(100), createdAt TIMESTAMP)"; |
| private String queryString = "SELECT COUNT(*) FROM CAMEL_MESSAGEPROCESSED WHERE processorName = ? AND messageId = ?"; |
| private String insertString = "INSERT INTO CAMEL_MESSAGEPROCESSED (processorName, messageId, createdAt) VALUES (?, ?, ?)"; |
| private String deleteString = "DELETE FROM CAMEL_MESSAGEPROCESSED WHERE processorName = ? AND messageId = ?"; |
| private String clearString = "DELETE FROM CAMEL_MESSAGEPROCESSED WHERE processorName = ?"; |
| |
| public JdbcMessageIdRepository() { |
| } |
| |
| public JdbcMessageIdRepository(DataSource dataSource, String processorName) { |
| super(dataSource, processorName); |
| } |
| |
| public JdbcMessageIdRepository(DataSource dataSource, TransactionTemplate transactionTemplate, String processorName) { |
| super(dataSource, transactionTemplate, processorName); |
| } |
| |
| public JdbcMessageIdRepository(JdbcTemplate jdbcTemplate, TransactionTemplate transactionTemplate) { |
| super(jdbcTemplate, transactionTemplate); |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| |
| transactionTemplate.execute(new TransactionCallback<Boolean>() { |
| public Boolean doInTransaction(TransactionStatus status) { |
| try { |
| // we will receive an exception if the table doesn't exists or we cannot access it |
| jdbcTemplate.execute(getTableExistsString()); |
| log.debug("Expected table for JdbcMessageIdRepository exist"); |
| } catch (DataAccessException e) { |
| if (createTableIfNotExists) { |
| try { |
| log.debug("creating table for JdbcMessageIdRepository because it doesn't exist..."); |
| jdbcTemplate.execute(getCreateString()); |
| log.info("table created with query '{}'", getCreateString()); |
| } catch (DataAccessException dae) { |
| // we will fail if we cannot create it |
| log.error("Can't create table for JdbcMessageIdRepository with query '{}' because of: {}. This may be a permissions problem. Please create this table and try again.", |
| getCreateString(), e.getMessage()); |
| throw dae; |
| } |
| } else { |
| throw e; |
| } |
| |
| } |
| return Boolean.TRUE; |
| } |
| }); |
| } |
| |
| @Override |
| protected int queryForInt(String key) { |
| return jdbcTemplate.queryForObject(getQueryString(), Integer.class, processorName, key); |
| } |
| |
| @Override |
| protected int insert(String key) { |
| return jdbcTemplate.update(getInsertString(), processorName, key, new Timestamp(System.currentTimeMillis())); |
| } |
| |
| @Override |
| protected int delete(String key) { |
| return jdbcTemplate.update(getDeleteString(), processorName, key); |
| } |
| |
| @Override |
| protected int delete() { |
| return jdbcTemplate.update(getClearString(), processorName); |
| } |
| |
| public boolean isCreateTableIfNotExists() { |
| return createTableIfNotExists; |
| } |
| |
| public void setCreateTableIfNotExists(boolean createTableIfNotExists) { |
| this.createTableIfNotExists = createTableIfNotExists; |
| } |
| |
| public String getTableExistsString() { |
| return tableExistsString; |
| } |
| |
| public void setTableExistsString(String tableExistsString) { |
| this.tableExistsString = tableExistsString; |
| } |
| |
| public String getCreateString() { |
| return createString; |
| } |
| |
| public void setCreateString(String createString) { |
| this.createString = createString; |
| } |
| |
| public String getQueryString() { |
| return queryString; |
| } |
| |
| public void setQueryString(String queryString) { |
| this.queryString = queryString; |
| } |
| |
| public String getInsertString() { |
| return insertString; |
| } |
| |
| public void setInsertString(String insertString) { |
| this.insertString = insertString; |
| } |
| |
| public String getDeleteString() { |
| return deleteString; |
| } |
| |
| public void setDeleteString(String deleteString) { |
| this.deleteString = deleteString; |
| } |
| |
| public String getClearString() { |
| return clearString; |
| } |
| |
| public void setClearString(String clearString) { |
| this.clearString = clearString; |
| } |
| } |