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/*
 * Copyright 2014 Takao Nakaguchi
 *
 * 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 org.trie4j.louds;

import org.trie4j.AbstractTermIdMapTrie;
import org.trie4j.MapNode;
import org.trie4j.MapTrie;
import org.trie4j.Node;
import org.trie4j.louds.TailLOUDSTrie.NodeListener;
import org.trie4j.louds.bvtree.BvTree;
import org.trie4j.louds.bvtree.LOUDSBvTree;
import org.trie4j.tail.ConcatTailArrayBuilder;
import org.trie4j.tail.TailArrayBuilder;

import java.io.Externalizable;
import java.util.ArrayList;
import java.util.List;

public class MapTailLOUDSTrie
        extends AbstractTermIdMapTrie
        implements Externalizable, MapTrie {
    public MapTailLOUDSTrie() {
    }

    public MapTailLOUDSTrie(MapTrie orig) {
        this(orig, new LOUDSBvTree(orig.nodeSize()),
                new ConcatTailArrayBuilder(orig.size() * 4));
    }

    public MapTailLOUDSTrie(MapTrie orig, TailArrayBuilder tailArrayBuilder) {
        this(orig, new LOUDSBvTree(orig.nodeSize()), tailArrayBuilder);
    }

    public MapTailLOUDSTrie(MapTrie orig, BvTree bvTree, TailArrayBuilder tailArrayBuilder) {
        final List values = new ArrayList();
        setTrie(new TailLOUDSTrie(orig, bvTree, tailArrayBuilder, new NodeListener() {
            @Override
            @SuppressWarnings("unchecked")
            public void listen(Node node, int id) {
                if (node.isTerminate()) {
                    values.add(((MapNode) node).getValue());
                }
            }
        }));
        setValues(values.toArray());
    }
}