| 1 | /* |
| 2 | * Copyright 2006-2008 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.springframework.batch.item.database.support; |
| 17 | |
| 18 | import static org.springframework.batch.support.DatabaseType.DB2; |
| 19 | import static org.springframework.batch.support.DatabaseType.DB2ZOS; |
| 20 | import static org.springframework.batch.support.DatabaseType.DERBY; |
| 21 | import static org.springframework.batch.support.DatabaseType.H2; |
| 22 | import static org.springframework.batch.support.DatabaseType.HSQL; |
| 23 | import static org.springframework.batch.support.DatabaseType.MYSQL; |
| 24 | import static org.springframework.batch.support.DatabaseType.ORACLE; |
| 25 | import static org.springframework.batch.support.DatabaseType.POSTGRES; |
| 26 | import static org.springframework.batch.support.DatabaseType.SQLSERVER; |
| 27 | import static org.springframework.batch.support.DatabaseType.SYBASE; |
| 28 | |
| 29 | import java.util.ArrayList; |
| 30 | import java.util.List; |
| 31 | |
| 32 | import javax.sql.DataSource; |
| 33 | |
| 34 | import org.springframework.batch.support.DatabaseType; |
| 35 | import org.springframework.jdbc.support.incrementer.DB2MainframeSequenceMaxValueIncrementer; |
| 36 | import org.springframework.jdbc.support.incrementer.DB2SequenceMaxValueIncrementer; |
| 37 | import org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer; |
| 38 | import org.springframework.jdbc.support.incrementer.DerbyMaxValueIncrementer; |
| 39 | import org.springframework.jdbc.support.incrementer.H2SequenceMaxValueIncrementer; |
| 40 | import org.springframework.jdbc.support.incrementer.HsqlMaxValueIncrementer; |
| 41 | import org.springframework.jdbc.support.incrementer.MySQLMaxValueIncrementer; |
| 42 | import org.springframework.jdbc.support.incrementer.OracleSequenceMaxValueIncrementer; |
| 43 | import org.springframework.jdbc.support.incrementer.PostgreSQLSequenceMaxValueIncrementer; |
| 44 | import org.springframework.jdbc.support.incrementer.SqlServerMaxValueIncrementer; |
| 45 | import org.springframework.jdbc.support.incrementer.SybaseMaxValueIncrementer; |
| 46 | |
| 47 | /** |
| 48 | * Default implementation of the {@link DataFieldMaxValueIncrementerFactory} |
| 49 | * interface. Valid database types are given by the {@link DatabaseType} enum. |
| 50 | * |
| 51 | * @author Lucas Ward |
| 52 | * @see DatabaseType |
| 53 | */ |
| 54 | public class DefaultDataFieldMaxValueIncrementerFactory implements DataFieldMaxValueIncrementerFactory { |
| 55 | |
| 56 | private DataSource dataSource; |
| 57 | |
| 58 | private String incrementerColumnName = "ID"; |
| 59 | |
| 60 | /** |
| 61 | * Public setter for the column name (defaults to "ID") in the incrementer. |
| 62 | * Only used by some platforms (Derby, HSQL, MySQL, SQL Server and Sybase), |
| 63 | * and should be fine for use with Spring Batch meta data as long as the |
| 64 | * default batch schema hasn't been changed. |
| 65 | * |
| 66 | * @param incrementerColumnName the primary key column name to set |
| 67 | */ |
| 68 | public void setIncrementerColumnName(String incrementerColumnName) { |
| 69 | this.incrementerColumnName = incrementerColumnName; |
| 70 | } |
| 71 | |
| 72 | public DefaultDataFieldMaxValueIncrementerFactory(DataSource dataSource) { |
| 73 | this.dataSource = dataSource; |
| 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public DataFieldMaxValueIncrementer getIncrementer(String incrementerType, String incrementerName) { |
| 78 | DatabaseType databaseType = DatabaseType.valueOf(incrementerType.toUpperCase()); |
| 79 | |
| 80 | if (databaseType == DB2) { |
| 81 | return new DB2SequenceMaxValueIncrementer(dataSource, incrementerName); |
| 82 | } |
| 83 | else if (databaseType == DB2ZOS) { |
| 84 | return new DB2MainframeSequenceMaxValueIncrementer(dataSource, incrementerName); |
| 85 | } |
| 86 | else if (databaseType == DERBY) { |
| 87 | return new DerbyMaxValueIncrementer(dataSource, incrementerName, incrementerColumnName); |
| 88 | } |
| 89 | else if (databaseType == HSQL) { |
| 90 | return new HsqlMaxValueIncrementer(dataSource, incrementerName, incrementerColumnName); |
| 91 | } |
| 92 | else if (databaseType == H2) { |
| 93 | return new H2SequenceMaxValueIncrementer(dataSource, incrementerName); |
| 94 | } |
| 95 | else if (databaseType == MYSQL) { |
| 96 | return new MySQLMaxValueIncrementer(dataSource, incrementerName, incrementerColumnName); |
| 97 | } |
| 98 | else if (databaseType == ORACLE) { |
| 99 | return new OracleSequenceMaxValueIncrementer(dataSource, incrementerName); |
| 100 | } |
| 101 | else if (databaseType == POSTGRES) { |
| 102 | return new PostgreSQLSequenceMaxValueIncrementer(dataSource, incrementerName); |
| 103 | } |
| 104 | else if (databaseType == SQLSERVER) { |
| 105 | return new SqlServerMaxValueIncrementer(dataSource, incrementerName, incrementerColumnName); |
| 106 | } |
| 107 | else if (databaseType == SYBASE) { |
| 108 | return new SybaseMaxValueIncrementer(dataSource, incrementerName, incrementerColumnName); |
| 109 | } |
| 110 | throw new IllegalArgumentException("databaseType argument was not on the approved list"); |
| 111 | |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public boolean isSupportedIncrementerType(String incrementerType) { |
| 116 | for (DatabaseType type : DatabaseType.values()) { |
| 117 | if (type.name().equals(incrementerType.toUpperCase())) { |
| 118 | return true; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | return false; |
| 123 | } |
| 124 | |
| 125 | @Override |
| 126 | public String[] getSupportedIncrementerTypes() { |
| 127 | |
| 128 | List<String> types = new ArrayList<String>(); |
| 129 | |
| 130 | for (DatabaseType type : DatabaseType.values()) { |
| 131 | types.add(type.name()); |
| 132 | } |
| 133 | |
| 134 | return types.toArray(new String[types.size()]); |
| 135 | } |
| 136 | } |