001/*
002 *  Copyright (c) 2023-2026, Agents-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.agentsflex.core.util;
017
018import okio.BufferedSink;
019
020import java.io.*;
021import java.nio.charset.StandardCharsets;
022
023public class IOUtil {
024    private static final int DEFAULT_BUFFER_SIZE = 8192;
025
026    public static void writeBytes(byte[] bytes, File toFile) {
027        try (FileOutputStream stream = new FileOutputStream(toFile)) {
028            stream.write(bytes);
029        } catch (IOException e) {
030            throw new UncheckedIOException(e);
031        }
032    }
033
034    public static byte[] readBytes(File file) {
035        try (FileInputStream inputStream = new FileInputStream(file)) {
036            return readBytes(inputStream);
037        } catch (IOException e) {
038            throw new UncheckedIOException(e);
039        }
040    }
041
042    public static byte[] readBytes(InputStream inputStream) {
043        try {
044            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
045            copy(inputStream, outStream);
046            return outStream.toByteArray();
047        } catch (IOException e) {
048            throw new UncheckedIOException(e);
049        }
050    }
051
052    public static void copy(InputStream inputStream, BufferedSink sink) throws IOException {
053        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
054        for (int len; (len = inputStream.read(buffer)) != -1; ) {
055            sink.write(buffer, 0, len);
056        }
057    }
058
059    public static void copy(InputStream inputStream, OutputStream outStream) throws IOException {
060        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
061        for (int len; (len = inputStream.read(buffer)) != -1; ) {
062            outStream.write(buffer, 0, len);
063        }
064    }
065
066    public static String readUtf8(InputStream inputStream) throws IOException {
067        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
068        copy(inputStream, outStream);
069        return new String(outStream.toByteArray(), StandardCharsets.UTF_8);
070    }
071
072
073}