/*
 * Copyright (c) 2008-2012, Hazel Bilisim Ltd. All Rights Reserved.
 *
 * 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.hazelcast.client.impl;

import com.hazelcast.nio.DataSerializable;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Set;

import static com.hazelcast.client.IOUtil.toObject;

public class CollectionWrapper<K> implements DataSerializable {
    /**
     *
     */
    private static final long serialVersionUID = -3983785771408545165L;
    /**
     *
     */
    private Collection<K> keys;

    public CollectionWrapper() {
    }

    public void readData(DataInput in) throws IOException {
        int size = in.readInt();
        keys = new ArrayList<K>(size);
        List<byte[]> arrays = new ArrayList<byte[]>(size);
        for (int i = 0; i < size; i++) {
            int length = in.readInt();
            byte[] bytes = new byte[length];
            in.readFully(bytes); // buffer of Data
            in.readInt();       // partitionHash of Data
            arrays.add(bytes);
        }
        for (int i = 0; i < size; i++) {
            K k = (K) toObject(arrays.get(i));
            keys.add(k);
        }
    }

    public void writeData(DataOutput out) throws IOException {
        throw new UnsupportedOperationException();
    }

    public Collection<K> getKeys() {
        return keys;
    }

    public void setKeys(Set<K> keys) {
        this.keys = keys;
    }

    public void addKey(byte[] obj) {
        this.keys.add((K) toObject(obj));
    }
}