Example usage for java.io BufferedInputStream BufferedInputStream

Introduction

In this page you can find the example usage for java.io BufferedInputStream BufferedInputStream.

Prototype

public BufferedInputStream(InputStream in)

Source Link

Document

Creates a BufferedInputStream and saves its argument, the input stream in, for later use.

Usage

From source file:Main.java

public static InputStream readFile(File file) {
    try {/*from  ww  w  .  j  ava2 s .c o m*/
        InputStream in = new BufferedInputStream(new FileInputStream(file));
        return in;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static int countLines(String filename) throws IOException {
    InputStream is = new BufferedInputStream(new FileInputStream(filename));
    try {/*w w w  .j a  va 2 s  .co m*/
        byte[] c = new byte[1024];
        int count = 0;
        int readChars = 0;
        boolean empty = true;
        while ((readChars = is.read(c)) != -1) {
            empty = false;
            for (int i = 0; i < readChars; ++i) {
                if (c[i] == '\n') {
                    ++count;
                }
            }
        }
        return (count == 0 && !empty) ? 1 : count;
    } finally {
        is.close();
    }
}

From source file:Main.java

public static byte[] readFileContents(InputStream input) throws IOException {
    byte contents[] = new byte[10000], buf[] = new byte[1024];
    InputStream in = new BufferedInputStream(input);
    int bytes_read = 0;

    for (;;) {/* ww w . j  a va 2s  .  c  o m*/
        int tmp = in.read(buf, 0, buf.length);
        if (tmp == -1)
            break;
        System.arraycopy(buf, 0, contents, bytes_read, tmp);
        bytes_read += tmp;
    }

    byte[] retval = new byte[bytes_read];
    System.arraycopy(contents, 0, retval, 0, bytes_read);
    return retval;
}

From source file:Util.java

public static void download(URL url, File to) throws IOException {
    BufferedInputStream in = new BufferedInputStream(url.openStream());
    BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(to));
    int bit = -1;
    while ((bit = in.read()) != -1) {
        out.write(bit);/*from  w w w . j  av a  2  s  . c  o m*/
    }
    in.close();
    out.close();
}

From source file:Main.java

public static boolean contentEquals(InputStream input1, InputStream input2) throws IOException {
    if (!(input1 instanceof BufferedInputStream)) {
        input1 = new BufferedInputStream(input1);
    }//from  w w w.ja v a  2 s  .c om
    if (!(input2 instanceof BufferedInputStream)) {
        input2 = new BufferedInputStream(input2);
    }

    int ch = input1.read();
    while (-1 != ch) {
        int ch2 = input2.read();
        if (ch != ch2) {
            return false;
        }
        ch = input1.read();
    }

    int ch2 = input2.read();
    return (ch2 == -1);
}

From source file:Main.java

public static byte[] getFileBytes(File file) throws IOException {
    BufferedInputStream bis = null;
    try {/*w  w w.j  a  v a  2s .com*/
        bis = new BufferedInputStream(new FileInputStream(file));
        int bytes = (int) file.length();
        byte[] buffer = new byte[bytes];
        int readBytes = bis.read(buffer);
        if (readBytes != buffer.length) {
            throw new IOException("Entire file not read");
        }
        return buffer;
    } finally {
        if (bis != null) {
            bis.close();
        }
    }
}

From source file:Main.java

public static InputStream getInitializedXMLInputStream(File f) throws IOException {
    return new BufferedInputStream(new FileInputStream(f));
}

From source file:Main.java

public static String readString(InputStream inputStream) throws Exception {
    BufferedInputStream stream = new BufferedInputStream(inputStream);
    StringBuilder answer = new StringBuilder();
    BufferedReader reader = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
    String line;// w  w  w  .  ja  va2  s .c om
    while ((line = reader.readLine()) != null) {
        answer.append(line);
    }
    reader.close();
    return answer.toString();
}

From source file:Main.java

public static int inputStreamToInt(InputStream inputStream) throws IOException {
    InputStream in = new BufferedInputStream(inputStream);
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));

    try {//  www .ja  v  a2 s.c  o  m
        String strValue = reader.readLine();
        int intValue = Integer.parseInt(strValue);
        return intValue;
    } catch (IOException e) {
        throw e;
    }
}

From source file:Main.java

private static Reader getUTF8Reader(InputStream f) throws IOException {
    BufferedInputStream bis = new BufferedInputStream(f);
    assert bis.markSupported();
    bis.mark(3);//ww w .  j  av a 2  s .  c  o  m
    boolean reset = true;
    byte[] t = new byte[3];
    bis.read(t);
    if (t[0] == ((byte) 0xef) && t[1] == ((byte) 0xbb) && t[2] == ((byte) 0xbf)) {
        reset = false;
    }
    if (reset) {
        bis.reset();
    }
    return new InputStreamReader(bis, "UTF-8");
}