liquibase.snapshot.JdbcDatabaseSnapshot Maven / Gradle / Ivy
package liquibase.snapshot;
import liquibase.CatalogAndSchema;
import liquibase.database.AbstractJdbcDatabase;
import liquibase.database.Database;
import liquibase.database.DatabaseConnection;
import liquibase.database.core.*;
import liquibase.database.jvm.JdbcConnection;
import liquibase.exception.DatabaseException;
import liquibase.logging.LogFactory;
import liquibase.structure.DatabaseObject;
import liquibase.structure.core.*;
import liquibase.util.JdbcUtils;
import liquibase.util.StringUtils;
import java.sql.*;
import java.util.*;
public class JdbcDatabaseSnapshot extends DatabaseSnapshot {
private boolean warnedAboutDbaRecycleBin=false;
private CachingDatabaseMetaData cachingDatabaseMetaData;
private Set userDefinedTypes;
public JdbcDatabaseSnapshot(DatabaseObject[] examples, Database database, SnapshotControl snapshotControl) throws DatabaseException, InvalidExampleException {
super(examples, database, snapshotControl);
}
public JdbcDatabaseSnapshot(DatabaseObject[] examples, Database database) throws DatabaseException, InvalidExampleException {
super(examples, database);
}
public CachingDatabaseMetaData getMetaData() throws SQLException {
if (cachingDatabaseMetaData == null) {
DatabaseMetaData databaseMetaData = null;
if (getDatabase().getConnection() != null) {
databaseMetaData = ((JdbcConnection) getDatabase().getConnection()).getUnderlyingConnection().getMetaData();
}
cachingDatabaseMetaData = new CachingDatabaseMetaData(this.getDatabase(), databaseMetaData);
}
return cachingDatabaseMetaData;
}
public class CachingDatabaseMetaData {
private DatabaseMetaData databaseMetaData;
private Database database;
public CachingDatabaseMetaData(Database database, DatabaseMetaData metaData) {
this.databaseMetaData = metaData;
this.database = database;
}
public DatabaseMetaData getDatabaseMetaData() {
return databaseMetaData;
}
public List getForeignKeys(final String catalogName, final String schemaName, final String tableName, final String fkName) throws DatabaseException {
return getResultSetCache("getImportedKeys").get(new ResultSetCache.UnionResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("FKTABLE_CAT"), row.getString("FKTABLE_SCHEM"), database, row.getString("FKTABLE_NAME"), row.getString("FK_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, tableName, fkName);
}
@Override
public List fastFetch() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
List returnList = new ArrayList();
List tables = new ArrayList();
String jdbcCatalogName = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
String jdbcSchemaName = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
if (database instanceof DB2Database) {
String sql = getDB2Sql(jdbcSchemaName);
if (tableName != null) {
sql = sql.replace(" ORDER BY ", " AND fk_col.tabname='" + tableName + "' ORDER BY ");
}
return executeAndExtract(sql, database);
} else {
if (tableName == null) {
for (CachedRow row : getTables(jdbcCatalogName, jdbcSchemaName, null)) {
tables.add(row.getString("TABLE_NAME"));
}
} else {
tables.add(tableName);
}
for (String foundTable : tables) {
if (database instanceof OracleDatabase) {
throw new RuntimeException("Should have bulk selected");
} else {
returnList.addAll(extract(databaseMetaData.getImportedKeys(jdbcCatalogName, jdbcSchemaName, foundTable)));
}
}
return returnList;
}
}
@Override
public List bulkFetch() throws SQLException, DatabaseException {
if (database instanceof OracleDatabase) {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
String jdbcSchemaName = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
String sql = "SELECT /*+rule*/" +
" NULL AS pktable_cat, " +
" p.owner as pktable_schem, " +
" p.table_name as pktable_name, " +
" pc.column_name as pkcolumn_name, " +
" NULL as fktable_cat, " +
" f.owner as fktable_schem, " +
" f.table_name as fktable_name, " +
" fc.column_name as fkcolumn_name, " +
" fc.position as key_seq, " +
" NULL as update_rule, " +
" decode (f.delete_rule, 'CASCADE', 0, 'SET NULL', 2, 1) as delete_rule, " +
" f.constraint_name as fk_name, " +
" p.constraint_name as pk_name, " +
" decode(f.deferrable, 'DEFERRABLE', 5, 'NOT DEFERRABLE', 7, 'DEFERRED', 6) deferrability " +
"FROM " +
"all_cons_columns pc " +
"INNER JOIN all_constraints p " +
"ON pc.owner = p.owner " +
"AND pc.constraint_name = p.constraint_name " +
"INNER JOIN all_constraints f " +
"ON pc.owner = f.r_owner " +
"AND pc.constraint_name = f.r_constraint_name " +
"INNER JOIN all_cons_columns fc " +
"ON fc.owner = f.owner " +
"AND fc.constraint_name = f.constraint_name " +
"AND fc.position = pc.position " +
"WHERE f.owner = '" + jdbcSchemaName + "' " +
"AND p.constraint_type in ('P', 'U') " +
"AND f.constraint_type = 'R' " +
"AND p.table_name NOT LIKE 'BIN$%' " +
"ORDER BY fktable_schem, fktable_name, key_seq";
return executeAndExtract(sql, database);
} else if (database instanceof DB2Database) {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
String jdbcSchemaName = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
String sql = getDB2Sql(jdbcSchemaName);
return executeAndExtract(sql, database);
} else {
throw new RuntimeException("Cannot bulk select");
}
}
protected String getDB2Sql(String jdbcSchemaName) {
return "SELECT " +
" pk_col.tabschema AS pktable_cat, " +
" pk_col.tabname as pktable_name, " +
" pk_col.colname as pkcolumn_name, " +
" fk_col.tabschema as fktable_cat, " +
" fk_col.tabname as fktable_name, " +
" fk_col.colname as fkcolumn_name, " +
" fk_col.colseq as key_seq, " +
" decode (ref.updaterule, 'A', 3, 'R', 1, 1) as update_rule, " +
" decode (ref.deleterule, 'A', 3, 'C', 0, 'N', 2, 'R', 1, 1) as delete_rule, " +
" ref.constname as fk_name, " +
" ref.refkeyname as pk_name, " +
" 7 as deferrability " +
"FROM " +
"syscat.references ref " +
"join syscat.keycoluse fk_col on ref.constname=fk_col.constname and ref.tabschema=fk_col.tabschema and ref.tabname=fk_col.tabname " +
"join syscat.keycoluse pk_col on ref.refkeyname=pk_col.constname and ref.reftabschema=pk_col.tabschema and ref.reftabname=pk_col.tabname " +
"WHERE ref.tabschema = '" + jdbcSchemaName + "' " +
"and pk_col.colseq=fk_col.colseq " +
"ORDER BY fk_col.colseq";
}
@Override
boolean shouldBulkSelect(String schemaKey, ResultSetCache resultSetCache) {
if (database instanceof DB2Database) {
return super.shouldBulkSelect(schemaKey, resultSetCache); //can bulk and fast fetch
} else {
return database instanceof OracleDatabase; //oracle is slow, always bulk select while you are at it. Other databases need to go through all tables.
}
}
});
}
public List getIndexInfo(final String catalogName, final String schemaName, final String tableName, final String indexName) throws DatabaseException {
return getResultSetCache("getIndexInfo").get(new ResultSetCache.UnionResultSetExtractor(database) {
public boolean bulkFetch = false;
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("TABLE_CAT"), row.getString("TABLE_SCHEM"), database, row.getString("TABLE_NAME"), row.getString("INDEX_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, tableName, indexName);
}
@Override
public List fastFetch() throws SQLException, DatabaseException {
List returnList = new ArrayList();
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
if (database instanceof OracleDatabase) {
warnAboutDbaRecycleBin();
//oracle getIndexInfo is buggy and slow. See Issue 1824548 and http://forums.oracle.com/forums/thread.jspa?messageID=578383
String sql =
"SELECT " +
"c.INDEX_NAME, " +
"3 AS TYPE, " +
"c.TABLE_NAME, " +
"c.COLUMN_NAME, " +
"c.COLUMN_POSITION AS ORDINAL_POSITION, " +
"e.COLUMN_EXPRESSION AS FILTER_CONDITION, " +
"CASE I.UNIQUENESS WHEN 'UNIQUE' THEN 0 ELSE 1 END AS NON_UNIQUE, " +
"CASE c.DESCEND WHEN 'Y' THEN 'D' WHEN 'N' THEN 'A' END AS ASC_OR_DESC " +
"FROM ALL_IND_COLUMNS c " +
"JOIN ALL_INDEXES i ON (i.index_name = c.index_name and i.table_owner = c.table_owner)" +
"LEFT JOIN "+(((OracleDatabase) database).canAccessDbaRecycleBin()?"dba_recyclebin":"user_recyclebin")+" d ON d.object_name=c.table_name " +
"LEFT JOIN all_ind_expressions e ON e.column_position = c.column_position AND e.index_name = c.index_name " +
"WHERE c.TABLE_OWNER = '" + database.correctObjectName(catalogAndSchema.getCatalogName(), Schema.class) + "' " +
"AND d.object_name IS NULL "+
"AND i.OWNER = c.TABLE_OWNER";
if (!bulkFetch && tableName != null) {
sql += " AND c.TABLE_NAME='" + tableName + "'";
}
if (!bulkFetch && indexName != null) {
sql += " AND c.INDEX_NAME='" + indexName + "'";
}
sql += " ORDER BY c.INDEX_NAME, ORDINAL_POSITION";
returnList.addAll(executeAndExtract(sql, database));
} else {
List tables = new ArrayList();
if (tableName == null) {
for (CachedRow row : getTables(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), null)) {
tables.add(row.getString("TABLE_NAME"));
}
} else {
tables.add(tableName);
}
for (String tableName : tables) {
ResultSet rs = databaseMetaData.getIndexInfo(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), tableName, false, true);
List rows = extract(rs, (database instanceof InformixDatabase));
returnList.addAll(rows);
}
}
return returnList;
}
@Override
public List bulkFetch() throws SQLException, DatabaseException {
this.bulkFetch = true;
return fastFetch();
}
@Override
boolean shouldBulkSelect(String schemaKey, ResultSetCache resultSetCache) {
if (database instanceof OracleDatabase) {
return super.shouldBulkSelect(schemaKey, resultSetCache);
}
return false;
}
});
}
protected void warnAboutDbaRecycleBin() {
if (!warnedAboutDbaRecycleBin && !(((OracleDatabase) database).canAccessDbaRecycleBin())) {
LogFactory.getInstance().getLog().warning(((OracleDatabase) database).getDbaRecycleBinWarning());
warnedAboutDbaRecycleBin = true;
}
}
/**
* Return the columns for the given catalog, schema, table, and column.
*/
public List getColumns(final String catalogName, final String schemaName, final String tableName, final String columnName) throws SQLException, DatabaseException {
if (database instanceof MSSQLDatabase && userDefinedTypes == null) {
userDefinedTypes = new HashSet();
DatabaseConnection databaseConnection = database.getConnection();
if (databaseConnection instanceof JdbcConnection) {
Statement stmt = null;
ResultSet resultSet = null;
try {
stmt = ((JdbcConnection) databaseConnection).getUnderlyingConnection().createStatement();
resultSet = stmt.executeQuery("select name from sys.types where is_user_defined=1");
while (resultSet.next()) {
userDefinedTypes.add(resultSet.getString("name").toLowerCase());
}
} finally {
JdbcUtils.close(resultSet, stmt);
}
}
}
return getResultSetCache("getColumns").get(new ResultSetCache.SingleResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("TABLE_CAT"), row.getString("TABLE_SCHEM"), database, row.getString("TABLE_NAME"), row.getString("COLUMN_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, tableName, columnName);
}
@Override
boolean shouldBulkSelect(String schemaKey, ResultSetCache resultSetCache) {
if (tableName.equalsIgnoreCase(database.getDatabaseChangeLogTableName()) || tableName.equalsIgnoreCase(database.getDatabaseChangeLogLockTableName())) {
return false;
}
return true;
//having issues with some columns not being found
// Set seenTables = resultSetCache.getInfo("seenTables", Set.class);
// if (seenTables == null) {
// seenTables = new HashSet();
// resultSetCache.putInfo("seenTables", seenTables);
// }
//
// seenTables.add(catalogName + ":" + schemaName + ":" + tableName);
// return seenTables.size() > 2;
}
@Override
public List fastFetchQuery() throws SQLException, DatabaseException {
if (database instanceof OracleDatabase) {
return oracleQuery(false);
}
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
try {
return extract(databaseMetaData.getColumns(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), tableName, null));
} catch (SQLException e) {
if (shouldReturnEmptyColumns(e)) { //view with table already dropped. Act like it has no columns.
return new ArrayList();
} else {
throw e;
}
}
}
@Override
public List bulkFetchQuery() throws SQLException, DatabaseException {
if (database instanceof OracleDatabase) {
return oracleQuery(true);
}
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
try {
return extract(databaseMetaData.getColumns(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), null, null));
} catch (SQLException e) {
if (shouldReturnEmptyColumns(e)) {
return new ArrayList();
} else {
throw e;
}
}
}
protected boolean shouldReturnEmptyColumns(SQLException e) {
return e.getMessage().contains("references invalid table"); //view with table already dropped. Act like it has no columns.
}
protected List oracleQuery(boolean bulk) throws DatabaseException, SQLException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
boolean getMapDateToTimestamp = true;
String sql = "select NULL AS TABLE_CAT, OWNER AS TABLE_SCHEM, 'NO' as IS_AUTOINCREMENT, cc.COMMENTS AS REMARKS," +
"OWNER, TABLE_NAME, COLUMN_NAME, DATA_TYPE AS DATA_TYPE_NAME, DATA_TYPE_MOD, DATA_TYPE_OWNER, " +
// note: oracle reports DATA_LENGTH=4*CHAR_LENGTH when using VARCHAR( CHAR ), thus BYTEs
"DECODE (c.data_type, 'CHAR', 1, 'VARCHAR2', 12, 'NUMBER', 3, 'LONG', -1, 'DATE', " + (getMapDateToTimestamp?"93":"91") + ", 'RAW', -3, 'LONG RAW', -4, 'BLOB', 2004, 'CLOB', 2005, 'BFILE', -13, 'FLOAT', 6, 'TIMESTAMP(6)', 93, 'TIMESTAMP(6) WITH TIME ZONE', -101, 'TIMESTAMP(6) WITH LOCAL TIME ZONE', -102, 'INTERVAL YEAR(2) TO MONTH', -103, 'INTERVAL DAY(2) TO SECOND(6)', -104, 'BINARY_FLOAT', 100, 'BINARY_DOUBLE', 101, 'XMLTYPE', 2009, 1111) AS data_type, " +
"DECODE( CHAR_USED, 'C',CHAR_LENGTH, DATA_LENGTH ) as DATA_LENGTH, " +
"DATA_PRECISION, DATA_SCALE, NULLABLE, COLUMN_ID as ORDINAL_POSITION, DEFAULT_LENGTH, " +
"DATA_DEFAULT, " +
"NUM_BUCKETS, CHARACTER_SET_NAME, " +
"CHAR_COL_DECL_LENGTH, CHAR_LENGTH, " +
"CHAR_USED, VIRTUAL_COLUMN " +
"FROM ALL_TAB_COLS c " +
"JOIN ALL_COL_COMMENTS cc USING ( OWNER, TABLE_NAME, COLUMN_NAME ) " +
"WHERE OWNER='" + ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema) + "' AND hidden_column='NO'";
if (!bulk) {
if (tableName != null) {
sql += " AND TABLE_NAME='" + database.escapeStringForDatabase(tableName) + "'";
}
if (columnName != null) {
sql += " AND COLUMN_NAME='" + database.escapeStringForDatabase(columnName) + "'";
}
}
sql += " ORDER BY OWNER, TABLE_NAME, c.COLUMN_ID";
return this.executeAndExtract(sql, database);
}
@Override
protected List extract(ResultSet resultSet, boolean informixIndexTrimHint) throws SQLException {
List rows = super.extract(resultSet, informixIndexTrimHint);
if (database instanceof MSSQLDatabase && userDefinedTypes.size() > 0) { //UDT types in MSSQL don't take parameters
for (CachedRow row : rows) {
String dataType = (String) row.get("TYPE_NAME");
if (userDefinedTypes.contains(dataType.toLowerCase())) {
row.set("COLUMN_SIZE", null);
row.set("DECIMAL_DIGITS ", null);
}
}
}
return rows;
}
});
}
public List getTables(final String catalogName, final String schemaName, final String table) throws SQLException, DatabaseException {
return getResultSetCache("getTables").get(new ResultSetCache.SingleResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("TABLE_CAT"), row.getString("TABLE_SCHEM"), database, row.getString("TABLE_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, table);
}
@Override
public List fastFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
if (database instanceof OracleDatabase) {
return queryOracle(catalogAndSchema, table);
}
String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
return extract(databaseMetaData.getTables(catalog, schema, table, new String[]{"TABLE"}));
}
@Override
public List bulkFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
if (database instanceof OracleDatabase) {
return queryOracle(catalogAndSchema, null);
}
String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
return extract(databaseMetaData.getTables(catalog, schema, null, new String[]{"TABLE"}));
}
private List queryOracle(CatalogAndSchema catalogAndSchema, String tableName) throws DatabaseException, SQLException {
String ownerName = database.correctObjectName(catalogAndSchema.getCatalogName(), Schema.class);
String sql = "SELECT null as TABLE_CAT, a.OWNER as TABLE_SCHEM, a.TABLE_NAME as TABLE_NAME, a.TEMPORARY as TEMPORARY, a.DURATION as DURATION, 'TABLE' as TABLE_TYPE, c.COMMENTS as REMARKS " +
"from ALL_TABLES a " +
"join ALL_TAB_COMMENTS c on a.TABLE_NAME=c.table_name and a.owner=c.owner " +
"WHERE a.OWNER='" + ownerName + "'";
if (tableName != null) {
sql += " AND a.TABLE_NAME='" + tableName + "'";
}
return executeAndExtract(sql, database);
}
});
}
public List getViews(final String catalogName, final String schemaName, final String view) throws SQLException, DatabaseException {
return getResultSetCache("getViews").get(new ResultSetCache.SingleResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("TABLE_CAT"), row.getString("TABLE_SCHEM"), database, row.getString("TABLE_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, view);
}
@Override
public List fastFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
if (database instanceof OracleDatabase) {
return queryOracle(catalogAndSchema, view);
}
String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
return extract(databaseMetaData.getTables(catalog, schema, view, new String[]{"VIEW"}));
}
@Override
public List bulkFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
if (database instanceof OracleDatabase) {
return queryOracle(catalogAndSchema, null);
}
String catalog = ((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema);
String schema = ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema);
return extract(databaseMetaData.getTables(catalog, schema, null, new String[]{"VIEW"}));
}
private List queryOracle(CatalogAndSchema catalogAndSchema, String viewName) throws DatabaseException, SQLException {
String ownerName = database.correctObjectName(catalogAndSchema.getCatalogName(), Schema.class);
String sql = "SELECT null as TABLE_CAT, a.OWNER as TABLE_SCHEM, a.VIEW_NAME as TABLE_NAME, 'TABLE' as TABLE_TYPE, c.COMMENTS as REMARKS, TEXT as OBJECT_BODY " +
"from ALL_VIEWS a " +
"join ALL_TAB_COMMENTS c on a.VIEW_NAME=c.table_name and a.owner=c.owner " +
"WHERE a.OWNER='" + ownerName + "'";
if (viewName != null) {
sql += " AND a.VIEW_NAME='" + viewName + "'";
}
sql += " AND a.VIEW_NAME not in (select mv.name from all_registered_mviews mv where mv.owner='" + ownerName + "')";
return executeAndExtract(sql, database);
}
});
}
public List getPrimaryKeys(final String catalogName, final String schemaName, final String table) throws SQLException, DatabaseException {
return getResultSetCache("getPrimaryKeys").get(new ResultSetCache.SingleResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(row.getString("TABLE_CAT"), row.getString("TABLE_SCHEM"), database, row.getString("TABLE_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, table);
}
@Override
public List fastFetchQuery() throws SQLException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
try {
List foundPks = new ArrayList();
if (table == null) {
List tables = CachingDatabaseMetaData.this.getTables(catalogName, schemaName, null);
for (CachedRow table : tables) {
List pkInfo = getPkInfo(schemaName, catalogAndSchema, table.getString("TABLE_NAME"));
if (pkInfo != null) {
foundPks.addAll(pkInfo);
}
}
return foundPks;
} else {
List pkInfo = getPkInfo(schemaName, catalogAndSchema, table);
if (pkInfo != null) {
foundPks.addAll(pkInfo);
}
}
return foundPks;
} catch (DatabaseException e) {
throw new SQLException(e);
}
}
private List getPkInfo(String schemaName, CatalogAndSchema catalogAndSchema, String tableName) throws DatabaseException, SQLException {
List pkInfo;
if (database instanceof MSSQLDatabase && database.getDatabaseMajorVersion() >= 8) {
String sql;
if (database.getDatabaseMajorVersion() >= 9) {
sql =
"SELECT " +
"DB_NAME() AS [TABLE_CAT], " +
"[s].[name] AS [TABLE_SCHEM], " +
"[t].[name] AS [TABLE_NAME], " +
"[c].[name] AS [COLUMN_NAME], " +
"CASE [ic].[is_descending_key] WHEN 0 THEN N'A' WHEN 1 THEN N'D' END AS [ASC_OR_DESC], " +
"[ic].[key_ordinal] AS [KEY_SEQ], " +
"[kc].[name] AS [PK_NAME] " +
"FROM [sys].[schemas] AS [s] " +
"INNER JOIN [sys].[tables] AS [t] " +
"ON [t].[schema_id] = [s].[schema_id] " +
"INNER JOIN [sys].[key_constraints] AS [kc] " +
"ON [kc].[parent_object_id] = [t].[object_id] " +
"INNER JOIN [sys].[indexes] AS [i] " +
"ON [i].[object_id] = [kc].[parent_object_id] " +
"AND [i].[index_id] = [kc].[unique_index_id] " +
"INNER JOIN [sys].[index_columns] AS [ic] " +
"ON [ic].[object_id] = [i].[object_id] " +
"AND [ic].[index_id] = [i].[index_id] " +
"INNER JOIN [sys].[columns] AS [c] " +
"ON [c].[object_id] = [ic].[object_id] " +
"AND [c].[column_id] = [ic].[column_id] " +
"WHERE [s].[name] = N'" + database.escapeStringForDatabase(catalogAndSchema.getSchemaName()) + "' " + // The schema name was corrected in the customized CatalogAndSchema
"AND [t].[name] = N'" + database.escapeStringForDatabase(database.correctObjectName(tableName, Table.class)) + "' " +
"AND [kc].[type] = 'PK' " +
"AND [ic].[key_ordinal] > 0 " +
"ORDER BY " +
"[ic].[key_ordinal]";
} else {
sql =
"SELECT " +
"DB_NAME() AS [TABLE_CAT], " +
"[s].[name] AS [TABLE_SCHEM], " +
"[t].[name] AS [TABLE_NAME], " +
"[c].[name] AS [COLUMN_NAME], " +
"CASE INDEXKEY_PROPERTY([ic].[id], [ic].[indid], [ic].[keyno], 'IsDescending') WHEN 0 THEN N'A' WHEN 1 THEN N'D' END AS [ASC_OR_DESC], " +
"[ic].[keyno] AS [KEY_SEQ], " +
"[kc].[name] AS [PK_NAME] " +
"FROM [dbo].[sysusers] AS [s] " +
"INNER JOIN [dbo].[sysobjects] AS [t] " +
"ON [t].[uid] = [s].[uid] " +
"INNER JOIN [dbo].[sysobjects] AS [kc] " +
"ON [kc].[parent_obj] = [t].[id] " +
"INNER JOIN [dbo].[sysindexes] AS [i] " +
"ON [i].[id] = [kc].[parent_obj] " +
"AND [i].[name] = [kc].[name] " +
"INNER JOIN [dbo].[sysindexkeys] AS [ic] " +
"ON [ic].[id] = [i].[id] " +
"AND [ic].[indid] = [i].[indid] " +
"INNER JOIN [dbo].[syscolumns] AS [c] " +
"ON [c].[id] = [ic].[id] " +
"AND [c].[colid] = [ic].[colid] " +
"WHERE [s].[name] = N'" + database.escapeStringForDatabase(catalogAndSchema.getSchemaName()) + "' " + // The schema name was corrected in the customized CatalogAndSchema
"AND [t].[name] = N'" + database.escapeStringForDatabase(database.correctObjectName(tableName, Table.class)) + "' " +
"AND [kc].[xtype] = 'PK' " +
"ORDER BY " +
"[ic].[keyno]";
}
pkInfo = executeAndExtract(sql, database);
} else {
if (database instanceof OracleDatabase) {
warnAboutDbaRecycleBin();
String sql = "SELECT NULL AS table_cat, c.owner AS table_schem, c.table_name, c.column_name, c.position AS key_seq, c.constraint_name AS pk_name " +
"FROM all_cons_columns c, all_constraints k " +
"LEFT JOIN "+(((OracleDatabase) database).canAccessDbaRecycleBin()?"dba_recyclebin":"user_recyclebin")+" d ON d.object_name=k.table_name "+
"WHERE k.constraint_type = 'P' " +
"AND d.object_name IS NULL "+
"AND k.table_name = '"+table+"' " +
"AND k.owner = '"+((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema)+"' " +
"AND k.constraint_name = c.constraint_name " +
"AND k.table_name = c.table_name " +
"AND k.owner = c.owner " +
"ORDER BY column_name";
try {
return executeAndExtract(sql, database);
} catch (DatabaseException e) {
throw new SQLException(e);
}
} else {
return extract(databaseMetaData.getPrimaryKeys(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), table));
}
}
return pkInfo;
}
@Override
public List bulkFetchQuery() throws SQLException {
if (database instanceof OracleDatabase) {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
warnAboutDbaRecycleBin();
try {
return executeAndExtract("SELECT NULL AS table_cat, c.owner AS table_schem, c.table_name, c.column_name, c.position AS key_seq,c.constraint_name AS pk_name FROM " +
"all_cons_columns c, " +
"all_constraints k " +
"LEFT JOIN "+(((OracleDatabase) database).canAccessDbaRecycleBin()?"dba_recyclebin":"user_recyclebin")+" d ON d.object_name=k.table_name "+
"WHERE k.constraint_type = 'P' " +
"AND d.object_name IS NULL " +
"AND k.owner='" + catalogAndSchema.getCatalogName() + "' " +
"AND k.constraint_name = c.constraint_name " +
"AND k.table_name = c.table_name " +
"AND k.owner = c.owner " +
"ORDER BY column_name", database);
} catch (DatabaseException e) {
throw new SQLException(e);
}
}
return null;
}
@Override
boolean shouldBulkSelect(String schemaKey, ResultSetCache resultSetCache) {
if (database instanceof OracleDatabase) {
return super.shouldBulkSelect(schemaKey, resultSetCache);
} else {
return false;
}
}
});
}
public List getUniqueConstraints(final String catalogName, final String schemaName, final String tableName) throws SQLException, DatabaseException {
return getResultSetCache("getUniqueConstraints").get(new ResultSetCache.SingleResultSetExtractor(database) {
@Override
public ResultSetCache.RowData rowKeyParameters(CachedRow row) {
return new ResultSetCache.RowData(catalogName, schemaName, database, row.getString("TABLE_NAME"));
}
@Override
public ResultSetCache.RowData wantedKeyParameters() {
return new ResultSetCache.RowData(catalogName, schemaName, database, tableName);
}
@Override
public List fastFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
return executeAndExtract(createSql(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), tableName), JdbcDatabaseSnapshot.this.getDatabase(), (database instanceof InformixDatabase));
}
@Override
public List bulkFetchQuery() throws SQLException, DatabaseException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
return executeAndExtract(createSql(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), ((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), null), JdbcDatabaseSnapshot.this.getDatabase());
}
private String createSql(String catalogName, String schemaName, String tableName) throws SQLException {
CatalogAndSchema catalogAndSchema = new CatalogAndSchema(catalogName, schemaName).customize(database);
String jdbcCatalogName = database.correctObjectName(((AbstractJdbcDatabase) database).getJdbcCatalogName(catalogAndSchema), Catalog.class);
String jdbcSchemaName = database.correctObjectName(((AbstractJdbcDatabase) database).getJdbcSchemaName(catalogAndSchema), Schema.class);
Database database = JdbcDatabaseSnapshot.this.getDatabase();
String sql;
if (database instanceof MySQLDatabase || database instanceof HsqlDatabase) {
sql = "select CONSTRAINT_NAME, TABLE_NAME "
+ "from " + database.getSystemSchema() + ".table_constraints "
+ "where constraint_schema='" + jdbcCatalogName + "' "
+ "and constraint_type='UNIQUE'";
if (tableName != null) {
sql += " and table_name='" + tableName + "'";
}
} else if (database instanceof PostgresDatabase) {
sql = "select CONSTRAINT_NAME, TABLE_NAME "
+ "from " + database.getSystemSchema() + ".table_constraints "
+ "where constraint_catalog='" + jdbcCatalogName + "' "
+ "and constraint_schema='" + jdbcSchemaName + "' "
+ "and constraint_type='UNIQUE'";
if (tableName != null) {
sql += " and table_name='" + tableName + "'";
}
} else if (database instanceof MSSQLDatabase) {
sql =
"SELECT " +
"[TC].[CONSTRAINT_NAME], " +
"[TC].[TABLE_NAME] " +
"FROM [INFORMATION_SCHEMA].[TABLE_CONSTRAINTS] AS [TC] " +
"WHERE [TC].[CONSTRAINT_TYPE] = 'UNIQUE' " +
"AND [TC].[CONSTRAINT_CATALOG] = N'" + database.escapeStringForDatabase(jdbcCatalogName) + "' " +
"AND [TC].[CONSTRAINT_SCHEMA] = N'" + database.escapeStringForDatabase(jdbcSchemaName) + "'";
if (tableName != null) {
sql += " AND [TC].[TABLE_NAME] = N'" + database.escapeStringForDatabase(database.correctObjectName(tableName, Table.class)) + "'";
}
} else if (database instanceof OracleDatabase) {
warnAboutDbaRecycleBin();
sql = "select uc.constraint_name, uc.table_name,uc.status,uc.deferrable,uc.deferred,ui.tablespace_name, ui.index_name, ui.owner as INDEX_CATALOG " +
"from all_constraints uc " +
"join all_indexes ui on uc.index_name = ui.index_name and uc.owner=ui.table_owner " +
"LEFT JOIN "+(((OracleDatabase) database).canAccessDbaRecycleBin()?"dba_recyclebin":"user_recyclebin")+" d ON d.object_name=ui.table_name "+
"where uc.constraint_type='U' " +
"and uc.owner = '" + jdbcSchemaName + "'" +
"AND d.object_name IS NULL ";
if (tableName != null) {
sql += " and uc.table_name = '" + tableName + "'";
}
} else if (database instanceof DB2Database) {
// if we are on DB2 AS400 iSeries
if (database.getDatabaseProductName().startsWith("DB2 UDB for AS/400")) {
sql = "select constraint_name as constraint_name, table_name as table_name from QSYS2.TABLE_CONSTRAINTS where table_schema='" + jdbcSchemaName + "' and constraint_type='UNIQUE'";
if (tableName != null) {
sql += " and table_name = '" + tableName + "'";
}
}
// here we are on DB2 UDB
else {
sql = "select distinct k.constname as constraint_name, t.tabname as TABLE_NAME from syscat.keycoluse k, syscat.tabconst t "
+ "where k.constname = t.constname "
+ "and t.tabschema = '" + jdbcSchemaName + "' "
+ "and t.type='U'";
if (tableName != null) {
sql += " and t.tabname = '" + tableName + "'";
}
}
} else if (database instanceof FirebirdDatabase) {
sql = "SELECT RDB$INDICES.RDB$INDEX_NAME AS CONSTRAINT_NAME, RDB$INDICES.RDB$RELATION_NAME AS TABLE_NAME FROM RDB$INDICES "
+ "LEFT JOIN RDB$RELATION_CONSTRAINTS ON RDB$RELATION_CONSTRAINTS.RDB$INDEX_NAME = RDB$INDICES.RDB$INDEX_NAME "
+ "WHERE RDB$INDICES.RDB$UNIQUE_FLAG IS NOT NULL "
+ "AND RDB$RELATION_CONSTRAINTS.RDB$CONSTRAINT_TYPE != 'PRIMARY KEY' "
+ "AND NOT(RDB$INDICES.RDB$INDEX_NAME LIKE 'RDB$%')";
if (tableName != null) {
sql += " AND RDB$INDICES.RDB$RELATION_NAME='" + tableName + "'";
}
} else if (database instanceof DerbyDatabase) {
sql = "select c.constraintname as CONSTRAINT_NAME, tablename AS TABLE_NAME "
+ "from sys.systables t, sys.sysconstraints c, sys.sysschemas s "
+ "where s.schemaname='" + jdbcCatalogName + "' "
+ "and t.tableid = c.tableid "
+ "and t.schemaid=s.schemaid "
+ "and c.type = 'U'";
if (tableName != null) {
sql += " AND t.tablename = '" + tableName + "'";
}
} else if (database instanceof InformixDatabase) {
sql = "select unique sysindexes.idxname as CONSTRAINT_NAME, sysindexes.idxtype, systables.tabname as TABLE_NAME "
+ "from sysindexes, systables "
+ "left outer join sysconstraints on sysconstraints.tabid = systables.tabid and sysconstraints.constrtype = 'P' "
+ "where sysindexes.tabid = systables.tabid and sysindexes.idxtype = 'U' "
+ "and sysconstraints.idxname != sysindexes.idxname "
+ "and sysconstraints.tabid = sysindexes.tabid";
if (tableName != null) {
sql += " and systables.tabname = '" + database.correctObjectName(tableName, Table.class) + "'";
}
} else if (database instanceof SybaseDatabase) {
LogFactory.getLogger().warning("Finding unique constraints not currently supported for Sybase");
return null; //TODO: find sybase sql
} else if (database instanceof SybaseASADatabase) {
sql = "select sysconstraint.constraint_name, sysconstraint.constraint_type, systable.table_name " +
"from sysconstraint, systable " +
"where sysconstraint.table_object_id = systable.object_id " +
"and sysconstraint.constraint_type = 'U'";
if (tableName != null) {
sql += " and systable.table_name = '" + tableName + "'";
}
} else {
sql = "select CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME "
+ "from " + database.getSystemSchema() + ".constraints "
+ "where constraint_schema='" + jdbcSchemaName + "' "
+ "and constraint_catalog='" + jdbcCatalogName + "' "
+ "and constraint_type='UNIQUE'";
if (tableName != null) {
sql += " and table_name='" + tableName + "'";
}
}
return sql;
}
});
}
}
}
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