public class

ThriftRowsListImpl

extends Object
implements Rows<K, C>
/*******************************************************************************
 * Copyright 2011 Netflix
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.netflix.astyanax.thrift.model;

import java.nio.ByteBuffer;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.apache.cassandra.thrift.ColumnOrSuperColumn;

import com.netflix.astyanax.Serializer;
import com.netflix.astyanax.model.Row;
import com.netflix.astyanax.model.Rows;

public class ThriftRowsListImpl<K, C> implements Rows<K, C> {

    private Map<ByteBuffer, List<ColumnOrSuperColumn>> rows;
    private final Serializer<K> keySer;
    private final Serializer<C> colSer;

    public ThriftRowsListImpl(Map<ByteBuffer, List<ColumnOrSuperColumn>> rows, Serializer<K> keySer,
            Serializer<C> colSer) {
        this.rows = rows;
        this.keySer = keySer;
        this.colSer = colSer;
    }

    @Override
    public Iterator<Row<K, C>> iterator() {
        class IteratorImpl implements Iterator<Row<K, C>> {
            Iterator<Map.Entry<ByteBuffer, List<ColumnOrSuperColumn>>> base;

            public IteratorImpl(Iterator<Map.Entry<ByteBuffer, List<ColumnOrSuperColumn>>> base) {
                this.base = base;
            }

            @Override
            public boolean hasNext() {
                return base.hasNext();
            }

            @Override
            public Row<K, C> next() {
                Map.Entry<ByteBuffer, List<ColumnOrSuperColumn>> row = base.next();
                return new ThriftRowImpl<K, C>(keySer.fromByteBuffer(row.getKey().duplicate()), row.getKey(),
                        new ThriftColumnOrSuperColumnListImpl<C>(row.getValue(), colSer));
            }

            @Override
            public void remove() {
                throw new UnsupportedOperationException("Iterator is immutable");
            }

        }
        return new IteratorImpl(rows.entrySet().iterator());
    }

    @Override
    public Row<K, C> getRow(K key) {
        List<ColumnOrSuperColumn> columns = rows.get(keySer.toByteBuffer(key));
        if (columns == null) {
            return null;
        }
        return new ThriftRowImpl<K, C>(key, keySer.toByteBuffer(key), new ThriftColumnOrSuperColumnListImpl<C>(columns,
                colSer));
    }

    @Override
    public int size() {
        return rows.size();
    }

    @Override
    public boolean isEmpty() {
        return rows.isEmpty();
    }

    @Override
    public Row<K, C> getRowByIndex(int i) {
        throw new UnsupportedOperationException("RowSlice response is not sorted");
    }

}