Examples of CollatingIterator

org.apache.commons.collections.iterators.CollatingIterator
Provides an ordered iteration over the elements contained in a collection of ordered Iterators.
Given two ordered {@link Iterator} instances A and B,the {@link #next} method on this iterator will return the lesser of A.next() and B.next(). @since Commons Collections 2.1 @version $Revision: 1.13 $ $Date: 2004/02/18 00:59:50 $ @author Rodney Waldhoff @author Stephen Colebourne

Examples of org.apache.commons.collections.iterators.CollatingIterator


    // Note: this would deserialize the response a 2nd time if getData was called first.
    // (this is not currently an issue since we don't do read repair for range queries.)
    public Iterable<Row> resolve() throws IOException
    {
        CollatingIterator collator = new CollatingIterator(new Comparator<Pair<Row,InetAddress>>()
        {
            public int compare(Pair<Row,InetAddress> o1, Pair<Row,InetAddress> o2)
            {
                return o1.left.key.compareTo(o2.left.key);
            }
        });


        int n = 0;
        for (Message response : responses)
        {
            RangeSliceReply reply = RangeSliceReply.read(response.getMessageBody());
            n = Math.max(n, reply.rows.size());
            collator.addIterator(new RowIterator(reply.rows.iterator(), response.getFrom()));
        }


        // for each row, compute the combination of all different versions seen, and repair incomplete versions
        return new ReducingIterator<Pair<Row,InetAddress>, Row>(collator)
        {

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Examples of org.apache.commons.collections.iterators.CollatingIterator


        // mimic the collectCollatedColumn + removeDeleted path that getColumnFamily takes.
        // this will handle removing columns and subcolumns that are supressed by a row or
        // supercolumn tombstone.
        QueryFilter filter = new QueryFilter(null, new QueryPath(resolved.metadata().cfName), new IdentityQueryFilter());
        CollatingIterator iter = new CollatingIterator(resolved.metadata().comparator.columnComparator);
        for (ColumnFamily version : versions)
        {
            if (version == null)
                continue;
            iter.addIterator(version.getColumnsMap().values().iterator());
        }
        filter.collectCollatedColumns(resolved, iter, Integer.MIN_VALUE);
        return ColumnFamilyStore.removeDeleted(resolved, Integer.MIN_VALUE);
    }

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Examples of org.apache.commons.collections.iterators.CollatingIterator

            public int compare(IColumn o1, IColumn o2)
            {
                return getComparator().compare(o1.name(), o2.name());
            }
        };
        iter = new LazyColumnIterator(new CollatingIterator(nameComparator, rows));
        return Iterators.filter(iter, Predicates.notNull());
    }

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Examples of org.apache.commons.collections.iterators.CollatingIterator

    }
     */
    public static CollatingIterator getCollatingIterator()
    {
        // CollatingIterator will happily NPE if you do not specify a comparator explicitly
        return new CollatingIterator(new Comparator()
        {
            public int compare(Object o1, Object o2)
            {
                return ((Comparable) o1).compareTo(o2);
            }

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Examples of org.apache.commons.collections.iterators.CollatingIterator


    @SuppressWarnings("unchecked")
    protected static CollatingIterator getCollatingIterator(Iterable<SSTableReader> sstables) throws IOException
    {
        // TODO CollatingIterator iter = FBUtilities.<SSTableIdentityIterator>getCollatingIterator();
        CollatingIterator iter = FBUtilities.getCollatingIterator();
        for (SSTableReader sstable : sstables)
        {
            iter.addIterator(sstable.getDirectScanner(FILE_BUFFER_SIZE));
        }
        return iter;
    }

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Examples of org.apache.commons.collections.iterators.CollatingIterator

    }


    public static <T extends Comparable<T>> CollatingIterator getCollatingIterator()
    {
        // CollatingIterator will happily NPE if you do not specify a comparator explicitly
        return new CollatingIterator(new Comparator<T>()
        {
            public int compare(T o1, T o2)
            {
                return o1.compareTo(o2);
            }

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Examples of org.apache.commons.collections.iterators.CollatingIterator

                public boolean evaluate(Object row)
                {
                    return Range.isTokenInRanges(((IteratingRow)row).getKey().token, ranges);
                }
            };
            CollatingIterator iter = FBUtilities.<IteratingRow>getCollatingIterator();
            for (SSTableReader sstable : sstables)
            {
                SSTableScanner scanner = sstable.getScanner(FILE_BUFFER_SIZE);
                iter.addIterator(new FilterIterator(scanner, rangesPredicate));
            }
            return iter;
        }

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Examples of org.apache.commons.collections.iterators.CollatingIterator

        this.table = table;
    }


    public List<Row> resolve(List<Message> responses) throws DigestMismatchException, IOException
    {
        CollatingIterator collator = new CollatingIterator(new Comparator<Pair<Row,InetAddress>>()
        {
            public int compare(Pair<Row,InetAddress> o1, Pair<Row,InetAddress> o2)
            {
                return o1.left.key.compareTo(o2.left.key);
            }
        });
        
        int n = 0;
        for (Message response : responses)
        {
            RangeSliceReply reply = RangeSliceReply.read(response.getMessageBody());
            n = Math.max(n, reply.rows.size());
            collator.addIterator(new RowIterator(reply.rows.iterator(), response.getFrom()));
        }


        // for each row, compute the combination of all different versions seen, and repair incomplete versions
        ReducingIterator<Pair<Row,InetAddress>, Row> iter = new ReducingIterator<Pair<Row,InetAddress>, Row>(collator)
        {

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Examples of org.apache.commons.collections.iterators.CollatingIterator

    }
     */
    public static CollatingIterator getCollatingIterator()
    {
        // CollatingIterator will happily NPE if you do not specify a comparator explicitly
        return new CollatingIterator(new Comparator()
        {
            public int compare(Object o1, Object o2)
            {
                return ((Comparable) o1).compareTo(o2);
            }

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Examples of org.apache.commons.collections.iterators.CollatingIterator


    @SuppressWarnings("unchecked")
    protected static CollatingIterator getCollatingIterator(Iterable<SSTableReader> sstables) throws IOException
    {
        // TODO CollatingIterator iter = FBUtilities.<SSTableIdentityIterator>getCollatingIterator();
        CollatingIterator iter = FBUtilities.getCollatingIterator();
        for (SSTableReader sstable : sstables)
        {
            iter.addIterator(sstable.getDirectScanner(FILE_BUFFER_SIZE));
        }
        return iter;
    }

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