| /* |
| * 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 |
| * |
| * https://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.tools.ant.taskdefs.optional.native2ascii; |
| |
| import java.io.BufferedReader; |
| import java.io.BufferedWriter; |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| import java.nio.file.Files; |
| import java.util.function.UnaryOperator; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.taskdefs.optional.Native2Ascii; |
| import org.apache.tools.ant.util.Native2AsciiUtils; |
| |
| /** |
| * Encapsulates the built-in Native2Ascii implementation. |
| * |
| * @since Ant 1.9.8 |
| */ |
| public class BuiltinNative2Ascii implements Native2AsciiAdapter { |
| |
| static final String IMPLEMENTATION_NAME = "builtin"; |
| |
| @Override |
| public final boolean convert(Native2Ascii args, File srcFile, |
| File destFile) throws BuildException { |
| boolean reverse = args.getReverse(); |
| String encoding = args.getEncoding(); |
| try (BufferedReader input = getReader(srcFile, encoding, reverse); |
| Writer output = getWriter(destFile, encoding, reverse)) { |
| |
| translate(input, output, reverse ? Native2AsciiUtils::ascii2native |
| : Native2AsciiUtils::native2ascii); |
| return true; |
| } catch (IOException ex) { |
| throw new BuildException("Exception trying to translate data", ex); |
| } |
| } |
| |
| private BufferedReader getReader(File srcFile, String encoding, |
| boolean reverse) throws IOException { |
| if (reverse || encoding == null) { |
| return new BufferedReader(new FileReader(srcFile)); |
| } |
| return new BufferedReader(new InputStreamReader( |
| Files.newInputStream(srcFile.toPath()), encoding)); |
| } |
| |
| private Writer getWriter(File destFile, String encoding, |
| boolean reverse) throws IOException { |
| if (!reverse) { |
| encoding = "ASCII"; |
| } |
| if (encoding == null) { |
| return new BufferedWriter(new FileWriter(destFile)); |
| } |
| return new BufferedWriter( |
| new OutputStreamWriter(Files.newOutputStream(destFile.toPath()), |
| encoding)); |
| } |
| |
| private void translate(BufferedReader input, Writer output, |
| UnaryOperator<String> translation) throws IOException { |
| for (String line : (Iterable<String>) () -> input.lines() |
| .map(translation).iterator()) { |
| output.write(String.format("%s%n", line)); |
| } |
| } |
| } |