@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Schema schema = (Schema) o;
if (getCatalog() != null
? !getCatalog().equals(schema.getCatalog())
: schema.getCatalog() != null) return false;
if (getName() != null
? !getName().equalsIgnoreCase(schema.getName())
: schema.getName() != null) return false;
return true;
}
public final String getJdbcSchemaName(final Schema schema) {
if (schema == null) {
return getJdbcSchemaName(getDefaultSchema());
} else {
return getJdbcSchemaName(new CatalogAndSchema(schema.getCatalogName(), schema.getName()));
}
}
@Override
protected DatabaseObject snapshotObject(DatabaseObject example, DatabaseSnapshot snapshot)
throws DatabaseException, InvalidExampleException {
Database database = snapshot.getDatabase();
Relation relation = ((Column) example).getRelation();
if (((Column) example).getComputed() != null && ((Column) example).getComputed()) {
return example;
}
Schema schema = relation.getSchema();
List<CachedRow> columnMetadataRs = null;
try {
JdbcDatabaseSnapshot.CachingDatabaseMetaData databaseMetaData =
((JdbcDatabaseSnapshot) snapshot).getMetaData();
columnMetadataRs =
databaseMetaData.getColumns(
((AbstractJdbcDatabase) database).getJdbcCatalogName(schema),
((AbstractJdbcDatabase) database).getJdbcSchemaName(schema),
relation.getName(),
example.getName());
if (columnMetadataRs.size() > 0) {
CachedRow data = columnMetadataRs.get(0);
Column column = readColumn(data, relation, database);
if (column != null
&& database instanceof MSSQLDatabase
&& database.getDatabaseMajorVersion() >= 8) {
String sql;
if (database.getDatabaseMajorVersion() >= 9) {
// SQL Server 2005 or later
// https://technet.microsoft.com/en-us/library/ms177541.aspx
sql =
"SELECT CAST([ep].[value] AS [nvarchar](MAX)) AS [REMARKS] "
+ "FROM [sys].[extended_properties] AS [ep] "
+ "WHERE [ep].[class] = 1 "
+ "AND [ep].[major_id] = OBJECT_ID(N'"
+ database.escapeStringForDatabase(
database.escapeTableName(
schema.getCatalogName(), schema.getName(), relation.getName()))
+ "') "
+ "AND [ep].[minor_id] = COLUMNPROPERTY([ep].[major_id], N'"
+ database.escapeStringForDatabase(column.getName())
+ "', 'ColumnId') "
+ "AND [ep].[name] = 'MS_Description'";
} else {
// SQL Server 2000
// https://technet.microsoft.com/en-us/library/aa224810%28v=sql.80%29.aspx
sql =
"SELECT CAST([p].[value] AS [ntext]) AS [REMARKS] "
+ "FROM [dbo].[sysproperties] AS [p] "
+ "WHERE [p].[id] = OBJECT_ID(N'"
+ database.escapeStringForDatabase(
database.escapeTableName(
schema.getCatalogName(), schema.getName(), relation.getName()))
+ "') "
+ "AND [p].[smallid] = COLUMNPROPERTY([p].[id], N'"
+ database.escapeStringForDatabase(column.getName())
+ "', 'ColumnId') "
+ "AND [p].[type] = 4 "
+ "AND [p].[name] = 'MS_Description'";
}
List<String> remarks =
ExecutorService.getInstance()
.getExecutor(snapshot.getDatabase())
.queryForList(new RawSqlStatement(sql), String.class);
if (remarks != null && remarks.size() > 0) {
column.setRemarks(StringUtils.trimToNull(remarks.iterator().next()));
}
}
return column;
} else {
return null;
}
} catch (Exception e) {
throw new DatabaseException(e);
}
}
@Override
public Change[] fixMissing(
DatabaseObject missingObject,
DiffOutputControl control,
Database referenceDatabase,
Database comparisonDatabase,
ChangeGeneratorChain chain) {
List<Change> returnList = new ArrayList<Change>();
UniqueConstraint uc = (UniqueConstraint) missingObject;
if (uc.getTable() == null) {
return null;
}
AddUniqueConstraintChange change = new AddUniqueConstraintChange();
change.setTableName(uc.getTable().getName());
if (uc.getBackingIndex() != null && control.getIncludeTablespace()) {
change.setTablespace(uc.getBackingIndex().getTablespace());
}
if (control.getIncludeCatalog()) {
change.setCatalogName(uc.getTable().getSchema().getCatalogName());
}
if (control.getIncludeSchema()) {
change.setSchemaName(uc.getTable().getSchema().getName());
}
change.setConstraintName(uc.getName());
change.setColumnNames(uc.getColumnNames());
change.setDeferrable(uc.isDeferrable() ? Boolean.TRUE : null);
change.setInitiallyDeferred(uc.isInitiallyDeferred() ? Boolean.TRUE : null);
change.setDisabled(uc.isDisabled() ? Boolean.TRUE : null);
if (comparisonDatabase instanceof OracleDatabase) {
Index backingIndex = uc.getBackingIndex();
if (backingIndex != null && backingIndex.getName() != null) {
Change[] changes =
ChangeGeneratorFactory.getInstance()
.fixMissing(backingIndex, control, referenceDatabase, comparisonDatabase);
if (changes != null) {
returnList.addAll(Arrays.asList(changes));
change.setForIndexName(backingIndex.getName());
Schema schema = backingIndex.getSchema();
if (schema != null) {
if (control.getIncludeCatalog()) {
change.setForIndexCatalogName(schema.getCatalogName());
}
if (control.getIncludeSchema()) {
change.setForIndexSchemaName(schema.getName());
}
}
}
}
}
Index backingIndex = uc.getBackingIndex();
// if (backingIndex == null) {
// Index exampleIndex = new Index().setTable(uc.getTable());
// for (String col : uc.getColumns()) {
// exampleIndex.getColumns().add(col);
// }
// control.setAlreadyHandledMissing(exampleIndex);
// } else {
control.setAlreadyHandledMissing(backingIndex);
// }
returnList.add(change);
return returnList.toArray(new Change[returnList.size()]);
}
@Override
public Change[] fixMissing(
DatabaseObject missingObject,
DiffOutputControl control,
Database referenceDatabase,
Database comparisonDatabase,
ChangeGeneratorChain chain) {
List<Change> returnList = new ArrayList<Change>();
PrimaryKey pk = (PrimaryKey) missingObject;
AddPrimaryKeyChange change = new AddPrimaryKeyChange();
change.setTableName(pk.getTable().getName());
if (control.getIncludeCatalog()) {
change.setCatalogName(pk.getTable().getSchema().getCatalogName());
}
if (control.getIncludeSchema()) {
change.setSchemaName(pk.getTable().getSchema().getName());
}
change.setConstraintName(pk.getName());
change.setColumnNames(pk.getColumnNames());
if (control.getIncludeTablespace()) {
change.setTablespace(pk.getTablespace());
}
if (referenceDatabase instanceof MSSQLDatabase
&& pk.getBackingIndex() != null
&& pk.getBackingIndex().getClustered() != null
&& !pk.getBackingIndex().getClustered()) {
change.setClustered(false);
}
if (comparisonDatabase instanceof OracleDatabase
|| (comparisonDatabase instanceof DB2Database
&& pk.getBackingIndex() != null
&& !comparisonDatabase.isSystemObject(pk.getBackingIndex()))) {
Index backingIndex = pk.getBackingIndex();
if (backingIndex != null && backingIndex.getName() != null) {
try {
if (!control.getIncludeCatalog() && !control.getIncludeSchema()) {
CatalogAndSchema schema =
comparisonDatabase.getDefaultSchema().customize(comparisonDatabase);
backingIndex
.getTable()
.setSchema(
schema.getCatalogName(),
schema
.getSchemaName()); // set table schema so it is found in the correct schema
}
if (referenceDatabase.equals(comparisonDatabase)
|| !SnapshotGeneratorFactory.getInstance().has(backingIndex, comparisonDatabase)) {
Change[] fixes =
ChangeGeneratorFactory.getInstance()
.fixMissing(backingIndex, control, referenceDatabase, comparisonDatabase);
if (fixes != null) {
for (Change fix : fixes) {
if (fix != null) {
returnList.add(fix);
}
}
}
}
} catch (Exception e) {
throw new UnexpectedLiquibaseException(e);
}
change.setForIndexName(backingIndex.getName());
Schema schema = backingIndex.getSchema();
if (schema != null) {
if (control.getIncludeCatalog()) {
change.setForIndexCatalogName(schema.getCatalogName());
}
if (control.getIncludeSchema()) {
change.setForIndexSchemaName(schema.getName());
}
}
}
}
control.setAlreadyHandledMissing(pk.getBackingIndex());
returnList.add(change);
return returnList.toArray(new Change[returnList.size()]);
}