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Neo4j Graph Data Science :: Procedures :: Machine Learning

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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.gds.ml.linkmodels.pipeline;

import org.neo4j.gds.BaseProc;
import org.neo4j.gds.core.CypherMapWrapper;
import org.neo4j.gds.ml.pipeline.PipelineCatalog;
import org.neo4j.gds.ml.pipeline.linkPipeline.LinkPredictionSplitConfig;
import org.neo4j.gds.ml.pipeline.linkPipeline.LinkPredictionTrainingPipeline;
import org.neo4j.procedure.Description;
import org.neo4j.procedure.Name;
import org.neo4j.procedure.Procedure;

import java.util.Map;
import java.util.stream.Stream;

import static org.neo4j.procedure.Mode.READ;

public class LinkPredictionPipelineConfigureSplitProc extends BaseProc {

    @Procedure(name = "gds.beta.pipeline.linkPrediction.configureSplit", mode = READ)
    @Description("Configures the split of the link prediction pipeline.")
    public Stream configureSplit(@Name("pipelineName") String pipelineName, @Name("configuration") Map configMap) {
        var pipeline = PipelineCatalog.getTyped(username(), pipelineName, LinkPredictionTrainingPipeline.class);

        var cypherConfig = CypherMapWrapper.create(configMap);
        var config = LinkPredictionSplitConfig.of(cypherConfig);

        cypherConfig.requireOnlyKeysFrom(config.configKeys());

        pipeline.setSplitConfig(config);

        return Stream.of(new PipelineInfoResult(pipelineName, pipeline));
    }
}