PluginDrivenSysTable.java

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package org.apache.doris.datasource.systable;

import org.apache.doris.datasource.ExternalTable;
import org.apache.doris.datasource.PluginDrivenExternalTable;
import org.apache.doris.datasource.PluginDrivenSysExternalTable;

/**
 * Generic {@link NativeSysTable} for plugin-driven connectors.
 *
 * <p>Unlike {@link PaimonSysTable} (which enumerates a fixed connector-specific set), instances of this
 * class are created on demand by {@link PluginDrivenExternalTable#getSupportedSysTables()} from the
 * names the connector SPI reports. {@link #createSysExternalTable(ExternalTable)} builds the transient
 * {@link PluginDrivenSysExternalTable} that the planner executes through the native table path.</p>
 */
public class PluginDrivenSysTable extends NativeSysTable {

    public PluginDrivenSysTable(String sysName) {
        super(sysName);
    }

    @Override
    public ExternalTable createSysExternalTable(ExternalTable sourceTable) {
        if (!(sourceTable instanceof PluginDrivenExternalTable)) {
            throw new IllegalArgumentException(
                    "Expected PluginDrivenExternalTable but got " + sourceTable.getClass().getSimpleName());
        }
        return new PluginDrivenSysExternalTable((PluginDrivenExternalTable) sourceTable, getSysTableName());
    }
}