ExternalMysqlTable.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.datasource.infoschema;

import org.apache.doris.analysis.SchemaTableType;
import org.apache.doris.catalog.MysqlDBTable;
import org.apache.doris.datasource.ExternalCatalog;
import org.apache.doris.datasource.ExternalDatabase;
import org.apache.doris.datasource.ExternalTable;
import org.apache.doris.datasource.SchemaCacheValue;
import org.apache.doris.thrift.TSchemaTable;
import org.apache.doris.thrift.TTableDescriptor;
import org.apache.doris.thrift.TTableType;

import java.util.Optional;

public class ExternalMysqlTable extends ExternalTable {
    public ExternalMysqlTable(long id, String name, ExternalCatalog catalog, ExternalDatabase db) {
        super(id, name, name, catalog, db, TableType.SCHEMA);
    }

    @Override
    public Optional<SchemaCacheValue> initSchema() {
        makeSureInitialized();
        return Optional.of(new SchemaCacheValue(MysqlDBTable.TABLE_MAP.get(name).getFullSchema()));
    }

    @Override
    public TTableDescriptor toThrift() {
        TSchemaTable tSchemaTable = new TSchemaTable(SchemaTableType.getThriftType(this.name));
        TTableDescriptor tTableDescriptor = new TTableDescriptor(getId(), TTableType.SCHEMA_TABLE,
                getFullSchema().size(), 0, this.name, "");
        tTableDescriptor.setSchemaTable(tSchemaTable);
        return tTableDescriptor;
    }
}