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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.textserialize.serializer;
import com.yahoo.prelude.query.Item;
import java.util.IdentityHashMap;
import java.util.Map;
/**
* @author tonytv
*/
public class ItemIdMapper {
private final Map<Item, String> idByItem = new IdentityHashMap<>();
private int idCounter = 0;
public String getId(Item item) {
String id = idByItem.get(item);
if (id != null) {
return id;
} else {
idByItem.put(item, generateId(item));
return getId(item);
}
}
private String generateId(Item item) {
return item.getName() + "_" + nextCount();
}
private int nextCount() {
return idCounter++;
}
}
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