/**
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The ASF licenses this file to you 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 org.apache.storm.spout;

import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.List;
import org.apache.storm.tuple.Fields;

public class SchemeAsMultiScheme implements MultiScheme {
    public final Scheme scheme;

    public SchemeAsMultiScheme(Scheme scheme) {
        this.scheme = scheme;
    }

    @Override
    public Iterable<List<Object>> deserialize(final ByteBuffer ser) {
        List<Object> o = scheme.deserialize(ser);
        if (o == null) {
            return null;
        } else {
            return Arrays.asList(o);
        }
    }

    @Override
    public Fields getOutputFields() {
        return scheme.getOutputFields();
    }
}