Example usage for org.apache.cassandra.db DataRange forKeyRange

Introduction

In this page you can find the example usage for org.apache.cassandra.db DataRange forKeyRange.

Prototype

public static DataRange forKeyRange(Range<PartitionPosition> keyRange) 

Source Link

Document

Creates a DataRange to query all rows over the provided key range.

Usage

From source file:edu.dprg.morphous.MoveSSTableTest.java

License:Apache License

@Deprecated
@SuppressWarnings("rawtypes")
public static void doInsertOnTemporaryCFForRangesChoosingEndpointManually(String ksName, String originalCfName,
        String tempCfName, Collection<Range<Token>> ranges) {
    for (Range<Token> range : ranges) {
        ColumnFamilyStore originalCfs = Keyspace.open(ksName).getColumnFamilyStore(originalCfName);
        ColumnFamilyStore tempCfs = Keyspace.open(ksName).getColumnFamilyStore(originalCfName);
        ColumnFamilyStore.AbstractScanIterator iterator = edu.uiuc.dprg.morphous.Util
                .invokePrivateMethodWithReflection(originalCfs, "getSequentialIterator",
                        DataRange.forKeyRange(range), System.currentTimeMillis());

        while (iterator.hasNext()) {
            Row row = iterator.next();/*  ww  w  .ja v a  2  s .co  m*/
            ColumnFamily data = row.cf;
            ColumnFamily tempData = TreeMapBackedSortedColumns.factory.create(ksName, tempCfName);
            tempData.addAll(data, null);

            ByteBuffer newKey = tempData
                    .getColumn(tempData.metadata().partitionKeyColumns().get(0).name.asReadOnlyBuffer())
                    .value();
            InetAddress destinationNode = edu.uiuc.dprg.morphous.Util.getNthReplicaNodeForKey(ksName, newKey,
                    1);

            RowMutation rm = new RowMutation(newKey, tempData);
            MessageOut<RowMutation> message = rm.createMessage();
            MessagingService.instance().sendRR(message, destinationNode); //TODO Maybe use more robust way to send message
        }
    }
}

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