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 * Licensed under the Apache License, Version 2.0 (the "License");
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package org.jooq.impl;

import static org.jooq.Clause.SCHEMA;
import static org.jooq.Clause.SCHEMA_REFERENCE;
import static org.jooq.impl.CatalogImpl.DEFAULT_CATALOG;
import static org.jooq.tools.StringUtils.defaultIfNull;

import java.util.Collections;
import java.util.List;
import java.util.stream.Stream;

import org.jooq.Catalog;
import org.jooq.Clause;
import org.jooq.Comment;
import org.jooq.Context;
import org.jooq.Domain;
import org.jooq.Name;
import org.jooq.Schema;
import org.jooq.Sequence;
import org.jooq.Table;
import org.jooq.UDT;
import org.jooq.tools.StringUtils;

A common base class for database schemata

This type is for JOOQ INTERNAL USE only. Do not reference directly
Author:
Lukas Eder/**
 * A common base class for database schemata
 * <p>
 * This type is for JOOQ INTERNAL USE only. Do not reference directly
 *
 * @author Lukas Eder
 */
@org.jooq.Internal
public class SchemaImpl extends AbstractNamed implements Schema {

    private static final long     serialVersionUID = -8101463810207566546L;
    private static final Clause[] CLAUSES          = { SCHEMA, SCHEMA_REFERENCE };
    static final Schema           DEFAULT_SCHEMA   = new SchemaImpl("");

    private Catalog               catalog;

    public SchemaImpl(String name) {
        this(name, null);
    }

    public SchemaImpl(String name, Catalog catalog) {
        this(DSL.name(name), catalog);
    }

    public SchemaImpl(String name, Catalog catalog, String comment) {
        this(DSL.name(name), catalog, DSL.comment(comment));
    }

    public SchemaImpl(Name name) {
        this(name, null);
    }

    public SchemaImpl(Name name, Catalog catalog) {
        this(name, catalog, null);
    }

    public SchemaImpl(Name name, Catalog catalog, Comment comment) {
        super(qualify(catalog, name), comment);

        this.catalog = catalog;
    }

    @Override
    public /* non-final */ Catalog getCatalog() {
        if (catalog == null)
            catalog = getQualifiedName().qualified()
                    ? DSL.catalog(getQualifiedName().qualifier())
                    : null;

        return catalog;
    }

    @Override
    public final void accept(Context<?> ctx) {
        if (ctx.qualifyCatalog()) {
            Catalog mappedCatalog = Tools.getMappedCatalog(ctx.configuration(), getCatalog());

            if (mappedCatalog != null && !"".equals(mappedCatalog.getName())) {
                ctx.visit(mappedCatalog);
                ctx.sql('.');
            }
        }

        Schema mappedSchema = Tools.getMappedSchema(ctx.configuration(), this);
        ctx.visit(mappedSchema != null ? mappedSchema.getUnqualifiedName() : getUnqualifiedName());
    }

    @Override
    public final Clause[] clauses(Context<?> ctx) {
        return CLAUSES;
    }

    @Override
    public final Table<?> getTable(String name) {
        return find(name, getTables());
    }

    @Override
    public final Table<?> getTable(Name name) {
        return find(name, getTables());
    }

    @Override
    public final UDT<?> getUDT(String name) {
        return find(name, getUDTs());
    }

    @Override
    public final UDT<?> getUDT(Name name) {
        return find(name, getUDTs());
    }

    @Override
    public final Domain<?> getDomain(String name) {
        return find(name, getDomains());
    }

    @Override
    public final Domain<?> getDomain(Name name) {
        return find(name, getDomains());
    }

    @Override
    public final Sequence<?> getSequence(String name) {
        return find(name, getSequences());
    }

    @Override
    public final Sequence<?> getSequence(Name name) {
        return find(name, getSequences());
    }

    
{@inheritDoc}

Subclasses should override this method
/**
     * {@inheritDoc}
     * <p>
     * Subclasses should override this method
     */
    @Override
    public List<Table<?>> getTables() {
        return Collections.emptyList();
    }

    
{@inheritDoc}

Subclasses should override this method
/**
     * {@inheritDoc}
     * <p>
     * Subclasses should override this method
     */
    @Override
    public List<UDT<?>> getUDTs() {
        return Collections.emptyList();
    }

    
{@inheritDoc}

Subclasses should override this method
/**
     * {@inheritDoc}
     * <p>
     * Subclasses should override this method
     */
    @Override
    public List<Domain<?>> getDomains() {
        return Collections.emptyList();
    }

    
{@inheritDoc}

Subclasses should override this method
/**
     * {@inheritDoc}
     * <p>
     * Subclasses should override this method
     */
    @Override
    public List<Sequence<?>> getSequences() {
        return Collections.emptyList();
    }


    @Override
    public final Stream<Table<?>> tableStream() {
        return getTables().stream();
    }

    @Override
    public final Stream<UDT<?>> udtStream() {
        return getUDTs().stream();
    }

    @Override
    public final Stream<Domain<?>> domainStream() {
        return getDomains().stream();
    }

    @Override
    public final Stream<Sequence<?>> sequenceStream() {
        return getSequences().stream();
    }


    // ------------------------------------------------------------------------
    // XXX: Object API
    // ------------------------------------------------------------------------

    @Override
    public boolean equals(Object that) {
        if (this == that)
            return true;

        // [#2144] SchemaImpl equality can be decided without executing the
        // rather expensive implementation of AbstractQueryPart.equals()
        if (that instanceof SchemaImpl) {
            SchemaImpl other = (SchemaImpl) that;
            return

                // [#7172] [#10274] Cannot use getQualifiedName() yet here
                StringUtils.equals(
                    defaultIfNull(getCatalog(), DEFAULT_CATALOG),
                    defaultIfNull(other.getCatalog(), DEFAULT_CATALOG)
                ) &&
                StringUtils.equals(getName(), other.getName());
        }

        return super.equals(that);
    }
}