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/* 
 * Copyright (c) 2008-2010, Hazel 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;

import com.hazelcast.core.IList;
import com.hazelcast.core.Prefix;
import com.hazelcast.impl.ClusterOperation;

import java.util.*;

import static com.hazelcast.client.ProxyHelper.check;

public class ListClientProxy extends CollectionClientProxy implements IList {
    public ListClientProxy(HazelcastClient hazelcastClient, String name) {
        super(hazelcastClient, name);
    }

    @Override
    public boolean add(E o) {
        check(o);
        return (Boolean) proxyHelper.doOp(ClusterOperation.CONCURRENT_MAP_ADD_TO_LIST, o, null);
    }

    @Override
    public boolean remove(Object o) {
        check(o);
        return (Boolean) proxyHelper.doOp(ClusterOperation.CONCURRENT_MAP_REMOVE_ITEM, o, null);
    }

    @Override
    public boolean contains(Object o) {
        check(o);
        return (Boolean) proxyHelper.doOp(ClusterOperation.CONCURRENT_MAP_CONTAINS_KEY, o, null);
    }

    @Override
    public boolean equals(Object o) {
        if (o instanceof IList && o != null) {
            return getName().equals(((IList) o).getName());
        } else {
            return false;
        }
    }

    @Override
    protected Collection getTheCollection() {
        final Collection> entries = proxyHelper.entries(null);
        final Iterator> it = entries.iterator();
        final ListClientProxy thisListProxy = this;
        return new AbstractCollection() {
            @Override
            public Iterator iterator() {
                return new Iterator() {
                    volatile E lastRecord;

                    public boolean hasNext() {
                        return it.hasNext();
                    }

                    public E next() {
                        lastRecord = it.next().getValue();
                        return lastRecord;
                    }

                    public void remove() {
                        if (lastRecord == null) {
                            throw new IllegalStateException();
                        }
                        it.remove();
                        thisListProxy.remove(lastRecord);
                    }
                };
            }

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

    public String getName() {
        return name.substring(Prefix.AS_LIST.length());
    }

    public InstanceType getInstanceType() {
        return InstanceType.LIST;
    }

    public void add(int index, E element) {
        throw new UnsupportedOperationException();
    }

    public boolean addAll(int index, Collection c) {
        throw new UnsupportedOperationException();
    }

    public E get(int index) {
        throw new UnsupportedOperationException();
    }

    public int indexOf(Object o) {
        throw new UnsupportedOperationException();
    }

    public int lastIndexOf(Object o) {
        throw new UnsupportedOperationException();
    }

    public ListIterator listIterator() {
        throw new UnsupportedOperationException();
    }

    public ListIterator listIterator(int index) {
        throw new UnsupportedOperationException();
    }

    public E remove(int index) {
        throw new UnsupportedOperationException();
    }

    public E set(int index, E element) {
        throw new UnsupportedOperationException();
    }

    public List subList(int fromIndex, int toIndex) {
        throw new UnsupportedOperationException();
    }
}