Examples with TxExtractor org.neo4j.com.TxExtractor used on opensource projects

Example 1 with TxExtractor

use of org.neo4j.com.TxExtractor in project graphdb by neo4j-attic.

the class SlaveTxIdGenerator method generate.

public long generate(final XaDataSource dataSource, final int identifier) {
    try {
        final int eventIdentifier = txManager.getEventIdentifier();
        Response<Long> response = broker.getMaster().first().commitSingleResourceTransaction(receiver.getSlaveContext(eventIdentifier), dataSource.getName(), new TxExtractor() {

            public void extract(LogBuffer buffer) {
                try {
                    dataSource.getPreparedTransaction(identifier, buffer);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }

            public ReadableByteChannel extract() {
                try {
                    return dataSource.getPreparedTransaction(identifier);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        });
        return receiver.receive(response);
    } catch (ZooKeeperException e) {
        receiver.newMaster(null, e);
        throw e;
    } catch (ComException e) {
        receiver.newMaster(null, e);
        throw e;
    }
}