HttpStream.java

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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.apache.doris.nereids.trees.expressions.functions.table;

import org.apache.doris.catalog.FunctionSignature;
import org.apache.doris.nereids.exceptions.AnalysisException;
import org.apache.doris.nereids.properties.DistributionSpecHash;
import org.apache.doris.nereids.properties.DistributionSpecHash.ShuffleType;
import org.apache.doris.nereids.properties.PhysicalProperties;
import org.apache.doris.nereids.trees.expressions.Properties;
import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
import org.apache.doris.nereids.types.coercion.AnyDataType;
import org.apache.doris.tablefunction.HttpStreamTableValuedFunction;
import org.apache.doris.tablefunction.TableValuedFunctionIf;

import com.google.common.collect.ImmutableList;

import java.util.Map;

/** http_stream */
public class HttpStream extends TableValuedFunction {
    public HttpStream(Properties properties) {
        super("http_stream", properties);
    }

    @Override
    public FunctionSignature customSignature() {
        return FunctionSignature.of(AnyDataType.INSTANCE_WITHOUT_INDEX, getArgumentsTypes());
    }

    @Override
    protected TableValuedFunctionIf toCatalogFunction() {
        try {
            Map<String, String> arguments = getTVFProperties().getMap();
            return new HttpStreamTableValuedFunction(arguments);
        } catch (Throwable t) {
            throw new AnalysisException("Can not build HttpStreamTableValuedFunction by "
                + this + ": " + t.getMessage(), t);
        }
    }

    @Override
    public PhysicalProperties getPhysicalProperties() {
        return PhysicalProperties.createHash(new DistributionSpecHash(ImmutableList.of(),
                ShuffleType.EXECUTION_BUCKETED));
    }

    @Override
    public <R, C> R accept(ExpressionVisitor<R, C> visitor, C context) {
        return visitor.visitHttpStream(this, context);
    }
}