com.davidthomasbernal.stardict.dictionary.DictionaryIndex Maven / Gradle / Ivy

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Basic stardict access Java library (with syn file support).

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package com.davidthomasbernal.stardict.dictionary;

import java.util.*;
import java.util.logging.Logger;

public class DictionaryIndex {
    private final List indexFileEntries;
    private Logger logger = Logger.getLogger(this.getClass().getName());

    // Updated also with indexFileEntries frm the synonyms file, if present.
    private final Map> entryMap;

    public DictionaryIndex(List indexFileEntries) {
        this.indexFileEntries = new ArrayList(indexFileEntries);
        entryMap = new HashMap>(this.indexFileEntries.size());

        addToIndex(indexFileEntries);
    }

    public Set getWords() {
        return entryMap.keySet();
    }

    public List getIndexFileEntries() {
        return Collections.unmodifiableList(indexFileEntries);
    }

    public IndexEntry getIndexFileEntry(int index) {
        return indexFileEntries.get(index);
    }

    public boolean containsWord(String searchWord) {
        return entryMap.containsKey(searchWord);
    }

    public Set getIndexFileEntries(String word) {
        if (entryMap.containsKey(word)) {
            return entryMap.get(word);
        } else {
            return Collections.emptySet();
        }
    }

    public void addToIndex(Collection entries) {
        for (IndexEntry entry : entries) {
            for (String word: entry.words) {
                String indexWord = word.toLowerCase();
                entryMap.putIfAbsent(indexWord, new LinkedHashSet<>());
                entryMap.get(indexWord).add(entry);
            }
        }
    }
}