Java InputStream Copy nio copy(InputStream in, OutputStream out)

Description

copy

License

Apache License

Declaration

public static int copy(InputStream in, OutputStream out) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w  w w . j av a 2 s.c o  m*/
 * Copyright 2016-2017 the original author or authors.
 *
 * Licensed 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
 *
 *      http://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.
 */

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import java.nio.file.Files;

public class Main {
    public static final int BUFFER_SIZE = 4096;

    public static int copy(File in, File out) throws IOException {
        return copy(Files.newInputStream(in.toPath()), Files.newOutputStream(out.toPath()));
    }

    public static int copy(InputStream in, OutputStream out) throws IOException {

        try {
            int byteCount = 0;
            byte[] buffer = new byte[BUFFER_SIZE];
            int bytesRead = -1;
            while ((bytesRead = in.read(buffer)) != -1) {
                out.write(buffer, 0, bytesRead);
                byteCount += bytesRead;
            }
            out.flush();
            return byteCount;
        } finally {
            try {
                in.close();
            } catch (IOException ex) {
            }
            try {
                out.close();
            } catch (IOException ex) {
            }
        }
    }
}

Related

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2. copy(InputStream in, OutputStream out)
3. copy(InputStream in, OutputStream out)
4. copy(InputStream in, OutputStream out)
5. copy(InputStream in, OutputStream out)
6. copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)
7. copy(InputStream input, OutputStream output)
8. copy(InputStream input, OutputStream output)