apoc.export.graphml.XmlGraphMLFormat Maven / Gradle / Ivy

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A collection of useful Neo4j Procedures

There is a newer version: 3.5.0.2

package apoc.export.graphml;

import apoc.export.util.ExportConfig;
import apoc.export.util.Format;
import apoc.export.util.Reporter;
import apoc.result.ProgressInfo;
import org.neo4j.cypher.export.SubGraph;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Transaction;

import java.io.Reader;
import java.io.Writer;

/**
 * @author mh
 * @since 21.01.14
 */
public class XmlGraphMLFormat implements Format {
    private final GraphDatabaseService db;

    public XmlGraphMLFormat(GraphDatabaseService db) {
        this.db = db;
    }

    @Override
    public ProgressInfo load(Reader reader, Reporter reporter, ExportConfig config) throws Exception {
        return null;
    }

    @Override
    public ProgressInfo dump(SubGraph graph, Writer writer, Reporter reporter, ExportConfig config) throws Exception {
        try (Transaction tx = db.beginTx()) {
            XmlGraphMLWriter graphMlWriter = new XmlGraphMLWriter();
            graphMlWriter.write(graph, writer, reporter, config);
            tx.success();
        }
        return reporter.getTotal();
    }
}