Java InputStream Copy nio copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)

Description

copy

License

Open Source License

Declaration

public static void copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)
            throws Throwable 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;

public class Main {
    public static final int BUFFER_SIZE = 8192;

    public static void copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)
            throws Throwable {
        byte[] buffer = new byte[BUFFER_SIZE];
        int len;/*w ww  .  j  av a2 s  . c om*/
        try {
            while ((len = in.read(buffer)) != -1) {
                out.write(buffer, 0, len);
            }
        } finally {
            Throwable t = null;
            if (closeInput) {
                try {
                    in.close();
                } catch (Throwable ex) {
                    t = ex;
                }
            }
            if (closeOutput) {
                try {
                    out.close();
                } catch (Throwable ex) {
                    t = ex;
                }
            }
            if (t != null) {
                throw t;
            }
        }
    }

    public static void copy(InputStream in, OutputStream out) throws Throwable {
        copy(in, out, false, false);
    }

    public static void copy(InputStream in, File outputFile, boolean closeInput) throws IOException {
        try {
            Files.copy(in, outputFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
        } finally {
            if (closeInput) {
                in.close();
            }
        }
    }

    public static void copy(InputStream in, File outputFile) throws IOException {
        copy(in, outputFile, false);
    }

    public static void copy(File inputFile, OutputStream out, boolean closeOutput) throws IOException {
        try {
            Files.copy(inputFile.toPath(), out);
        } finally {
            if (closeOutput) {
                out.close();
            }
        }
    }

    public static void copy(File inputFile, OutputStream out) throws IOException {
        copy(inputFile, out, false);
    }

    public static void copy(File inputFile, File outputFile) throws IOException {
        Files.copy(inputFile.toPath(), outputFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
    }
}

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