hadoop WordList 源码
haddop WordList 代码
文件路径：/hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/anonymization/WordList.java
/**
* 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.hadoop.tools.rumen.anonymization;
import java.util.HashMap;
import java.util.Map;
import org.apache.hadoop.tools.rumen.state.State;
/**
* Represents the list of words used in list-backed anonymizers.
*/
public class WordList implements State {
private Map<String, Integer> list = new HashMap<String, Integer>(0);
private boolean isUpdated = false;
private String name;
public WordList() {
this("word");
}
public WordList(String name) {
this.name = name;
}
@Override
public String getName() {
return name;
}
/**
* Adds the specified word to the list if the word is not already added.
*/
public void add(String word) {
if (!contains(word)) {
int index = getSize();
list.put(word, index);
isUpdated = true;
}
}
/**
* Returns 'true' if the list contains the specified word.
*/
public boolean contains(String word) {
return list.containsKey(word);
}
/**
* Returns the index of the specified word in the list.
*/
public int indexOf(String word) {
return list.get(word);
}
/**
* Returns the size of the list.
*/
public int getSize() {
return list.size();
}
/**
* Returns 'true' if the list is updated since creation (and reload).
*/
@Override
public boolean isUpdated() {
return isUpdated;
}
/**
* Setters and getters for Jackson JSON
*/
/**
* Sets the size of the list.
*
* Note: That this API is only for Jackson JSON deserialization.
*/
public void setSize(int size) {
list = new HashMap<String, Integer>(size);
}
/**
* Note: That this API is only for Jackson JSON deserialization.
*/
@Override
public void setName(String name) {
this.name = name;
}
/**
* Gets the words.
*
* Note: That this API is only for Jackson JSON serialization.
*/
public Map<String, Integer> getWords() {
return list;
}
/**
* Sets the words.
*
* Note: That this API is only for Jackson JSON deserialization.
*/
public void setWords(Map<String, Integer> list) {
this.list = list;
}
}
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