org.nuiton.topia.service.script.table.TopiaSqlTablesFactory Maven / Gradle / Ivy
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package org.nuiton.topia.service.script.table;
/*
* #%L
* ObServe Toolkit :: ToPIA Script service
* %%
* Copyright (C) 2017 - 2018 IRD, Ultreia.io
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
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*
* 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, see
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*/
import java.util.LinkedHashSet;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuiton.topia.persistence.TopiaEntityEnum;
import org.nuiton.topia.persistence.TopiaEntityEnumProvider;
import org.nuiton.topia.persistence.metadata.TopiaMetadataEntity;
import org.nuiton.topia.persistence.metadata.TopiaMetadataModel;
import org.nuiton.topia.persistence.metadata.TopiaMetadataModelVisitor;
/**
* A factory of {@link TopiaSqlTables}.
*
* Created on 04/01/16.
*
* @author Tony Chemit - [email protected]
* @since 3.0.1
*/
public class TopiaSqlTablesFactory {
/** Logger. */
private static final Log log = LogFactory.getLog(TopiaSqlTablesFactory.class);
private final TopiaMetadataModel model;
private final TopiaEntityEnumProvider entityEnumProvider;
public TopiaSqlTablesFactory(TopiaMetadataModel model, TopiaEntityEnumProvider entityEnumProvider) {
this.model = model;
this.entityEnumProvider = entityEnumProvider;
}
public TopiaSqlTables newReplicateEntityTables(TopiaSqlTablesPredicate predicate, TopiaEntityEnum... entityEnums) {
ReplicateTables tablesBuilder = new ReplicateTables(predicate);
return tablesBuilder.getTables(entityEnums);
}
public interface TopiaSqlTablesPredicate {
boolean acceptEntity(TopiaMetadataEntity metadataEntity);
boolean acceptAssociation(TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType);
boolean acceptReversedAssociation(TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType);
boolean acceptNmAssociation(TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType);
}
public class ReplicateTables implements TopiaMetadataModelVisitor {
protected final TopiaSqlTablesPredicate predicate;
final Set dones;
protected TopiaSqlTables.BuilderStepOnTable builder;
protected TopiaSqlTables tables;
ReplicateTables(TopiaSqlTablesPredicate predicate) {
this.predicate = predicate;
this.dones = new LinkedHashSet<>();
}
TopiaSqlTables getTables(TopiaEntityEnum... entityEnums) {
visitModelStart(model);
for (TopiaEntityEnum entityEnum : entityEnums) {
TopiaMetadataEntity entity = model.getEntity(entityEnum.name());
entity.accept(this, model);
}
visitModelEnd(model);
return tables;
}
@Override
public void visitModelStart(TopiaMetadataModel metadataModel) {
}
@Override
public void visitModelEnd(TopiaMetadataModel metadataModel) {
tables = builder.build();
}
@Override
public void visitEntiyStart(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity) {
if (predicate.acceptEntity(metadataEntity)) {
boolean added = dones.add(metadataEntity);
if (added) {
log.debug("E → " + metadataEntity.getType());
TopiaEntityEnum entityEnum = entityEnumProvider.getEntityEnum(metadataEntity.getType());
builder = (builder == null ? TopiaSqlTables.builder(metadataModel, metadataEntity) : builder).addMainTable(entityEnum);
}
}
}
@Override
public void visitEntiyEnd(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity) {
if (dones.contains(metadataEntity)) {
log.debug("E ← " + metadataEntity.getType());
}
}
@Override
public void visitReversedAssociation(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType) {
if (predicate.acceptReversedAssociation(metadataEntity, propertyName, propertyType)) {
TopiaEntityEnum entityEnum = entityEnumProvider.getEntityEnum(propertyType.getType());
boolean withShell = propertyType.withShell();
log.debug(metadataEntity.getType() + "/" + propertyName + "→" + propertyType.getType() + " (withShell: " + withShell + ")");
if (withShell) {
builder = builder.addAndEnterReverseJoinTable(entityEnum);
visitChild(propertyType);
} else {
builder = builder.addReverseJoinTable(entityEnum);
}
}
}
@Override
public void visitOneToManyAssociation(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType) {
if (predicate.acceptAssociation(metadataEntity, propertyName, propertyType)) {
TopiaEntityEnum entityEnum = entityEnumProvider.getEntityEnum(propertyType.getType());
boolean withShell = propertyType.withShell();
log.debug(metadataEntity.getType() + "/" + propertyName + "→" + propertyType.getType() + " (withShell: " + withShell + ")");
if (withShell) {
builder = builder.addAndEnterJoinTable(entityEnum);
visitChild(propertyType);
} else {
builder = builder.addJoinTable(entityEnum);
}
}
}
@Override
public void visitOneToManyAssociationInverse(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType) {
// Rien a faire
}
@Override
public void visitManyToManyAssociation(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType) {
if (predicate.acceptNmAssociation(metadataEntity, propertyName, propertyType)) {
log.debug(metadataEntity.getType() + "/" + propertyName + "→" + propertyType.getType());
TopiaEntityEnum entityEnum = entityEnumProvider.getEntityEnum(propertyType.getType());
builder = builder.addAssociationTable(entityEnum, propertyName);
}
}
@Override
public void visitManyToOneAssociation(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, TopiaMetadataEntity propertyType) {
}
@Override
public void visitProperty(TopiaMetadataModel metadataModel, TopiaMetadataEntity metadataEntity, String propertyName, String propertyType) {
}
void visitChild(TopiaMetadataEntity propertyType) {
dones.add(propertyType);
propertyType.accept(this, model);
builder = builder.backToParent();
}
}
}