package liquibase.diff.output.changelog.core;
import liquibase.change.AddColumnConfig;
import liquibase.change.Change;
import liquibase.change.ConstraintsConfig;
import liquibase.change.core.AddColumnChange;
import liquibase.database.Database;
import liquibase.datatype.DataTypeFactory;
import liquibase.diff.output.DiffOutputControl;
import liquibase.diff.output.changelog.ChangeGeneratorChain;
import liquibase.diff.output.changelog.MissingObjectChangeGenerator;
import liquibase.structure.DatabaseObject;
import liquibase.structure.core.Column;
import liquibase.structure.core.PrimaryKey;
import liquibase.structure.core.Table;
import liquibase.structure.core.View;
public class MissingColumnChangeGenerator implements MissingObjectChangeGenerator {
@Override
public int getPriority(Class<? extends DatabaseObject> objectType, Database database) {
if (Column.class.isAssignableFrom(objectType)) {
return PRIORITY_DEFAULT;
}
return PRIORITY_NONE;
}
@Override
public Class<? extends DatabaseObject>[] runAfterTypes() {
return new Class[] {
Table.class
};
}
@Override
public Class<? extends DatabaseObject>[] runBeforeTypes() {
return new Class[] { PrimaryKey.class };
}
@Override
public Change[] fixMissing(DatabaseObject missingObject, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
Column column = (Column) missingObject;
// if (!shouldModifyColumn(column)) {
// continue;
// }
if (column.getRelation() instanceof View) {
return null;
}
AddColumnChange change = new AddColumnChange();
change.setTableName(column.getRelation().getName());
if (control.getIncludeCatalog()) {
change.setCatalogName(column.getRelation().getSchema().getCatalogName());
}
if (control.getIncludeSchema()) {
change.setSchemaName(column.getRelation().getSchema().getName());
}
AddColumnConfig columnConfig = new AddColumnConfig();
columnConfig.setName(column.getName());
String dataType = column.getType().toString();
columnConfig.setType(dataType);
Object defaultValue = column.getDefaultValue();
MissingTableChangeGenerator.setDefaultValue(columnConfig, column, comparisonDatabase);
if (defaultValue != null) {
String defaultValueString = null;
try {
defaultValueString = DataTypeFactory.getInstance().from(column.getType(), comparisonDatabase).objectToSql(defaultValue, referenceDatabase);
} catch (NullPointerException e) {
throw e;
}
if (defaultValueString != null) {
defaultValueString = defaultValueString.replaceFirst("'",
"").replaceAll("'$", "");
}
columnConfig.setDefaultValue(defaultValueString);
}
if (column.getRemarks() != null) {
columnConfig.setRemarks(column.getRemarks());
}
ConstraintsConfig constraintsConfig = columnConfig.getConstraints();
if (column.isNullable() != null && !column.isNullable()) {
if (constraintsConfig == null) {
constraintsConfig = new ConstraintsConfig();
}
constraintsConfig.setNullable(false);
}
if (constraintsConfig != null) {
columnConfig.setConstraints(constraintsConfig);
}
change.addColumn(columnConfig);
return new Change[] { change };
}
}