io.questdb.cutlass.pgwire.PGJobContext Maven / Gradle / Ivy

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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2020 QuestDB
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 *  http://www.apache.org/licenses/LICENSE-2.0
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package io.questdb.cutlass.pgwire;

import io.questdb.MessageBus;
import io.questdb.cairo.CairoEngine;
import io.questdb.griffin.FunctionFactoryCache;
import io.questdb.griffin.SqlCompiler;
import io.questdb.network.PeerDisconnectedException;
import io.questdb.network.PeerIsSlowToReadException;
import io.questdb.network.PeerIsSlowToWriteException;
import io.questdb.std.AssociativeCache;
import io.questdb.std.Misc;
import io.questdb.std.WeakAutoClosableObjectPool;

import java.io.Closeable;

public class PGJobContext implements Closeable {

    private final SqlCompiler compiler;
    private final AssociativeCache selectAndTypesCache;
    private final WeakAutoClosableObjectPool selectAndTypesPool;

    public PGJobContext(PGWireConfiguration configuration, CairoEngine engine, MessageBus messageBus, FunctionFactoryCache functionFactoryCache) {
        this.compiler = new SqlCompiler(engine, messageBus, functionFactoryCache);
        this.selectAndTypesCache = new AssociativeCache<>(
                configuration.getFactoryCacheColumnCount(),
                configuration.getFactoryCacheRowCount()
        );
        this.selectAndTypesPool = new WeakAutoClosableObjectPool<>(
                TypesAndSelect::new,
                configuration.getFactoryCacheColumnCount() * configuration.getFactoryCacheRowCount()
        );
    }

    @Override
    public void close() {
        Misc.free(compiler);
        Misc.free(selectAndTypesCache);
    }

    public void handleClientOperation(PGConnectionContext context, int operation)
            throws PeerIsSlowToWriteException,
            PeerIsSlowToReadException,
            PeerDisconnectedException,
            BadProtocolException {
        context.handleClientOperation(compiler, selectAndTypesCache, selectAndTypesPool, operation);
    }
}