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/*
* _____________________________________________________________________________
*
* INAF - OATS National Institute for Astrophysics - Astronomical Observatory of
* Trieste INAF - IA2 Italian Center for Astronomical Archives
* _____________________________________________________________________________
*
* Copyright (C) 2016 Istituto Nazionale di Astrofisica
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License Version 3 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package it.inaf.ia2.tsm;
import java.util.ArrayList;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Models the list of operations that have to be performed by the
* {@link it.inaf.ia2.tsm.TapSchema#save()} method, in terms of adding, updating
* or removing {@link it.inaf.ia2.tsm.TapSchemaEntity} entities. Could also be
* used stand-alone to obtain a preview of the operations that will be performed
* on the database.
*
* @author Sonia Zorba {@literal <zorba at oats.inaf.it>}
*/
public class UpdateOperations {
private static final Logger LOG = LoggerFactory.getLogger(UpdateOperations.class);
private final List<Schema> schemasToRemove;
private final List<Schema> schemasToAdd;
private final List<Schema> schemasToUpdate;
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private final List<Schema> schemasToClean; // REMOVED_NOT_PERSISTED
private final List<Table> tablesToRemove;
private final List<Table> tablesToAdd;
private final List<Table> tablesToUpdate;
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private final List<Table> tablesToClean; // REMOVED_NOT_PERSISTED
private final List<Column> columnsToRemove;
private final List<Column> columnsToAdd;
private final List<Column> columnsToUpdate;
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private final List<Column> columnsToClean; // REMOVED_NOT_PERSISTED
private final List<Key> keysToRemove;
private final List<Key> keysToAdd;
private final List<Key> keysToUpdate;
private void manageAddedNotPersistedTable(Table table) {
tablesToAdd.add(table);
// children columns can have only the following status:
// ADDED_NOT_PERSISTED, REMOVED_NOT_PERSISTED, LOADED
columnsToAdd.addAll(table.getChildren(Status.ADDED_NOT_PERSISTED));
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for (Column column : table.getChildren(Status.REMOVED_NOT_PERSISTED)) {
columnsToClean.add(column);
}
}
public UpdateOperations(TapSchema tapSchema) {
schemasToRemove = new ArrayList<>();
schemasToAdd = new ArrayList<>();
schemasToUpdate = new ArrayList<>();
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schemasToClean = new ArrayList<>();
tablesToRemove = new ArrayList<>();
tablesToAdd = new ArrayList<>();
tablesToUpdate = new ArrayList<>();
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tablesToClean = new ArrayList<>();
columnsToRemove = new ArrayList<>();
columnsToAdd = new ArrayList<>();
columnsToUpdate = new ArrayList<>();
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columnsToClean = new ArrayList<>();
keysToRemove = new ArrayList<>();
keysToAdd = new ArrayList<>();
keysToUpdate = new ArrayList<>();
for (Key key : tapSchema.getAllKeys()) {
if (key.isVisible()) {
String originalKeyId = key.getOriginalValue(Key.ID_KEY, String.class);
if (originalKeyId == null) {
keysToAdd.add(key);
} else if (key.isChanged()) {
keysToUpdate.add(key);
}
} else if (key.getId() != null) {
keysToRemove.add(key);
}
}
for (Schema schema : tapSchema.getChildren()) {
switch (schema.getStatus()) {
case ADDED_NOT_PERSISTED:
schemasToAdd.add(schema);
for (Table table : schema.getChildren()) {
// children tables can have the following status:
// ADDED_NOT_PERSISTED, REMOVED_NOT_PERSISTED, LOADED
switch (table.getStatus()) {
case ADDED_NOT_PERSISTED:
manageAddedNotPersistedTable(table);
break;
case REMOVED_NOT_PERSISTED:
tablesToClean.add(table);
break;
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}
}
break;
case ADDED_PERSISTED:
if (schema.isChanged()) {
schemasToUpdate.add(schema);
}
// children tables can have any status!
for (Table table : schema.getChildren()) {
switch (table.getStatus()) {
case ADDED_NOT_PERSISTED:
manageAddedNotPersistedTable(table);
break;
case ADDED_PERSISTED:
if (table.isChanged()) {
tablesToUpdate.add(table);
}
// children columns can have any status!
for (Column column : table.getChildren()) {
switch (column.getStatus()) {
case ADDED_NOT_PERSISTED:
columnsToAdd.add(column);
break;
case ADDED_PERSISTED:
if (column.isChanged()) {
columnsToUpdate.add(column);
}
break;
case TO_REMOVE:
columnsToRemove.add(column);
break;
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case REMOVED_NOT_PERSISTED:
columnsToClean.add(column);
}
}
break;
case TO_REMOVE:
tablesToRemove.add(table);
for (Column column : table.getChildren()) {
if (column.getStatus() == Status.ADDED_PERSISTED) {
columnsToRemove.add(column);
}
}
break;
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case REMOVED_NOT_PERSISTED:
tablesToClean.add(table);
break;
}
}
break;
case TO_REMOVE:
schemasToRemove.add(schema);
for (Table table : schema.getChildren()) {
if (table.getStatus() == Status.ADDED_PERSISTED) {
tablesToRemove.add(table);
for (Column column : table.getChildren()) {
if (column.getStatus() == Status.ADDED_PERSISTED) {
columnsToRemove.add(column);
}
}
}
}
break;
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case REMOVED_NOT_PERSISTED:
schemasToClean.add(schema);
break;
}
}
}
public List<Schema> getSchemasToRemove() {
return schemasToRemove;
}
public List<Schema> getSchemasToAdd() {
return schemasToAdd;
}
public List<Schema> getSchemasToUpdate() {
return schemasToUpdate;
}
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public List<Schema> getSchemasToClean() {
return schemasToClean;
}
public List<Table> getTablesToRemove() {
return tablesToRemove;
}
public List<Table> getTablesToAdd() {
return tablesToAdd;
}
public List<Table> getTablesToUpdate() {
return tablesToUpdate;
}
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public List<Table> getTablesToClean() {
return tablesToClean;
}
public List<Column> getColumnsToRemove() {
return columnsToRemove;
}
public List<Column> getColumnsToAdd() {
return columnsToAdd;
}
public List<Column> getColumnsToUpdate() {
return columnsToUpdate;
}
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public List<Column> getColumnsToClean() {
return columnsToClean;
}
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public List<Key> getKeysToRemove() {
return keysToRemove;
}
public List<Key> getKeysToAdd() {
return keysToAdd;
}
public List<Key> getKeysToUpdate() {
return keysToUpdate;
}
public boolean getHasEntitiesToAdd() {
return !(schemasToAdd.isEmpty() && tablesToAdd.isEmpty() && columnsToAdd.isEmpty() && keysToAdd.isEmpty());
}
public boolean getHasEntitiesToRemove() {
return !(schemasToRemove.isEmpty() && tablesToRemove.isEmpty() && columnsToRemove.isEmpty() && keysToRemove.isEmpty());
}
public boolean getHasEntitiesToUpdate() {
return !(schemasToUpdate.isEmpty() && tablesToUpdate.isEmpty() && columnsToUpdate.isEmpty() && keysToUpdate.isEmpty());
}
public boolean getHasOperations() {
return getHasEntitiesToAdd() || getHasEntitiesToRemove() || getHasEntitiesToUpdate();
}
}