package liquibase.diff.output.changelog.core;
import liquibase.change.Change;
import liquibase.change.core.AddPrimaryKeyChange;
import liquibase.change.core.DropPrimaryKeyChange;
import liquibase.database.Database;
import liquibase.diff.ObjectDifferences;
import liquibase.diff.output.DiffOutputControl;
import liquibase.diff.output.changelog.ChangeGeneratorChain;
import liquibase.diff.output.changelog.ChangedObjectChangeGenerator;
import liquibase.structure.DatabaseObject;
import liquibase.structure.core.Column;
import liquibase.structure.core.Index;
import liquibase.structure.core.PrimaryKey;
import liquibase.structure.core.UniqueConstraint;
import liquibase.util.StringUtils;
import java.util.Collection;
import java.util.List;
public class ChangedPrimaryKeyChangeGenerator implements ChangedObjectChangeGenerator {
@Override
public int getPriority(Class<? extends DatabaseObject> objectType, Database database) {
if (PrimaryKey.class.isAssignableFrom(objectType)) {
return PRIORITY_DEFAULT;
}
return PRIORITY_NONE;
}
@Override
public Class<? extends DatabaseObject>[] runBeforeTypes() {
return new Class[] {Index.class, UniqueConstraint.class };
}
@Override
public Class<? extends DatabaseObject>[] runAfterTypes() {
return null;
}
@Override
public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences differences, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
PrimaryKey pk = (PrimaryKey) changedObject;
DropPrimaryKeyChange dropPkChange = new DropPrimaryKeyChange();
dropPkChange.setTableName(pk.getTable().getName());
AddPrimaryKeyChange addPkChange = new AddPrimaryKeyChange();
addPkChange.setTableName(pk.getTable().getName());
addPkChange.setColumnNames(pk.getColumnNames());
addPkChange.setConstraintName(pk.getName());
if (control.getIncludeCatalog()) {
dropPkChange.setCatalogName(pk.getSchema().getCatalogName());
addPkChange.setCatalogName(pk.getSchema().getCatalogName());
}
if (control.getIncludeSchema()) {
dropPkChange.setSchemaName(pk.getSchema().getName());
addPkChange.setSchemaName(pk.getSchema().getName());
}
List<Column> referenceColumns = (List<Column>) differences.getDifference("columns").getReferenceValue();
List<Column> comparedColumns = (List<Column>) differences.getDifference("columns").getComparedValue();
StringUtils.ToStringFormatter formatter = new StringUtils.ToStringFormatter();
control.setAlreadyHandledChanged(new Index().setTable(pk.getTable()).setColumns(referenceColumns));
if (!StringUtils.join(referenceColumns, ",", formatter).equalsIgnoreCase(StringUtils.join(comparedColumns, ",", formatter))) {
control.setAlreadyHandledChanged(new Index().setTable(pk.getTable()).setColumns(comparedColumns));
}
control.setAlreadyHandledChanged(new UniqueConstraint().setTable(pk.getTable()).setColumns(referenceColumns));
if (!StringUtils.join(referenceColumns, ",", formatter).equalsIgnoreCase(StringUtils.join(comparedColumns, "," , formatter))) {
control.setAlreadyHandledChanged(new UniqueConstraint().setTable(pk.getTable()).setColumns(comparedColumns));
}
return new Change[] { dropPkChange, addPkChange };
}
}