ca.nines.ise.util.CodePointTable.java Source code

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Here is the source code for ca.nines.ise.util.CodePointTable.java

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/*
 * Copyright (C) 2015 Michael Joyce <ubermichael@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation version 2.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package ca.nines.ise.util;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
import org.apache.commons.csv.CSVRecord;

/**
 *
 * @author Michael Joyce <ubermichael@gmail.com>
 */
public class CodePointTable {

    private final Map<String, CodePoint> table;

    public static class CodePointTableBuilder implements BuilderInterface<CodePointTable> {

        private final Map<String, CodePoint> table;

        private CodePointTableBuilder() {
            table = new HashMap<>();
        }

        @Override
        public CodePointTable build() {
            return new CodePointTable(table);
        }

        public CodePointTableBuilder addCodePoint(CodePoint cp) {
            table.put(cp.getName(), cp);
            return this;
        }

        public CodePointTableBuilder from(InputStream in) throws IOException {
            Reader reader = new InputStreamReader(in);
            CSVParser csv = new CSVParser(reader, CSVFormat.DEFAULT, 0, 0);
            for (CSVRecord record : csv) {
                if (record.get(1).equals("Decimal")) {
                    continue;
                }
                CodePoint cp = new CodePoint(record.get(0), Integer.parseInt(record.get(1)));
                addCodePoint(cp);
            }
            return this;
        }
    }

    private CodePointTable(Map<String, CodePoint> table) {
        this.table = table;
    }

    public static CodePointTableBuilder builder() {
        return new CodePointTableBuilder();
    }

    public static CodePointTable defaultCodePointTable() throws IOException {
        String loc = "/data/entities.csv";
        InputStream in = CodePointTable.class.getResourceAsStream(loc);
        return builder().from(in).build();
    }

    public boolean hasCodePoint(String name) {
        return table.containsKey(name);
    }

    public CodePoint getCodePoint(String name) {
        if (table.containsKey(name)) {
            return table.get(name);
        }
        return null;
    }

    public int size() {
        return table.size();
    }

    public String[] getCodePoints() {
        String names[] = table.keySet().toArray(new String[table.size()]);
        Arrays.sort(names);
        return names;
    }

}