95 lines
2.8 KiB
Java
95 lines
2.8 KiB
Java
/*
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* Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.*;
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// This class is public so that tools can invoke.
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public class TextFileReader implements AutoCloseable {
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private BufferedReader reader;
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private int lineNo;
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public TextFileReader(String filename) throws IOException {
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this(new File(new File(System.getProperty("test.src", "."),
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"TimeZoneData"),
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filename));
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}
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public TextFileReader(File file) throws IOException {
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InputStream is = new FileInputStream(file);
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reader = new BufferedReader(new InputStreamReader(is, "utf-8"));
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}
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public String readLine() throws IOException {
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return getLine();
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}
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public String getLine() throws IOException {
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checkReader();
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String line;
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while ((line = reader.readLine()) != null) {
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lineNo++;
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line = line.trim();
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// Skip blank and comment lines.
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if (line.length() == 0) {
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continue;
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}
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int x = line.indexOf('#');
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if (x == 0) {
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continue;
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}
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if (x > 0) {
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line = line.substring(0, x).trim();
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}
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break;
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}
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return line;
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}
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public String getRawLine() throws IOException {
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checkReader();
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String line = reader.readLine();
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if (line != null) {
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lineNo++;
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}
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return line;
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}
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private void checkReader() throws IOException {
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if (reader == null) {
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throw new IOException("This TextFileReader has been closed.");
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}
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}
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@Override
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public void close() throws IOException {
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reader.close();
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reader = null;
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}
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int getLineNo() {
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return lineNo;
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}
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}
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