Example usage for java.io FileInputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:Main.java

public static String setImBin(String fName) {
    FileInputStream fileInputStream = null;

    File file = new File(Environment.getExternalStorageDirectory().getPath(), "Pictures/" + fName);

    byte[] bFile = new byte[(int) file.length()];

    try {//ww  w . j av  a2 s  .c o m
        fileInputStream = new FileInputStream(file);
        fileInputStream.read(bFile);
        fileInputStream.close();

    } catch (Exception e) {
        e.printStackTrace();
    }
    return Base64.encodeToString(bFile, Base64.DEFAULT);
}

From source file:Main.java

public static byte[] readFromFile(File file) throws IOException {
    FileInputStream fin = null;
    try {//from   w w w  .j a  v a2s  .c  o m
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        fin = new FileInputStream(file);
        byte[] buffer = new byte[8192];
        int read = 0;
        while ((read = fin.read(buffer)) != -1) {
            out.write(buffer, 0, read);
        }
        byte[] data = out.toByteArray();
        out.close();
        return data;
    } finally {
        if (fin != null) {
            try {
                fin.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:com.blockwithme.longdb.tools.Utils.java

/** Reads first 2 bytes, checks if its equal to GZIPInputStream.GZIP_MAGIC
 * //from   w  ww  . j  a va2  s .c o  m
 * @param theFile
 *        the file
 * @return true, if compressed
 * @throws Exception */
public static boolean compressed(final File theFile) throws Exception {
    // TODO: I the file name ends with .gz, then I think that we
    // don't need to check
    FileInputStream fis = null;
    try {
        fis = FileUtils.openInputStream(theFile);
        while (true) {
            final byte[] bytes = new byte[2];
            fis.read(bytes);
            final int head = (bytes[0] & BYTE_MASK) | ((bytes[1] << BYTE_BITS) & SECOND_BYTE_MASK);
            return head == GZIPInputStream.GZIP_MAGIC;
        }
    } finally {
        if (fis != null)
            fis.close();
    }
}

From source file:Main.java

public static byte[] getBytesFromFile(File f) {
    if (f == null) {
        return null;
    }//  w  ww  .  j  ava2s . com
    FileInputStream stream = null;
    ByteArrayOutputStream out = null;
    try {
        stream = new FileInputStream(f);
        out = new ByteArrayOutputStream(1000);
        byte[] b = new byte[1000];
        int n;
        while ((n = stream.read(b)) != -1)
            out.write(b, 0, n);

        return out.toByteArray();
    } catch (IOException e) {
    } finally {
        try {
            if (stream != null)
                stream.close();
            if (out != null)
                out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
    return null;
}

From source file:com.compomics.pladipus.core.control.util.ZipUtils.java

static private void addFileToZip(String path, String srcFile, ZipOutputStream zip)
        throws UnspecifiedPladipusException, FileNotFoundException, IOException {
    File folder = new File(srcFile);
    if (folder.isDirectory()) {
        addFolderToZip(path, srcFile, zip);
    } else {/*from  w w w. java 2 s.  c  om*/
        byte[] buf = new byte[1024];
        int len;
        FileInputStream in = new FileInputStream(srcFile);
        zip.putNextEntry(new ZipEntry(path + "/" + folder.getName()));
        while ((len = in.read(buf)) > 0) {
            zip.write(buf, 0, len);
        }
    }
}

From source file:Main.java

private static ByteArrayOutputStream readFileToStream(String file) {
    FileInputStream fileInputStream = null;
    try {/*from www . j  a  v a 2 s.  c  o m*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        fileInputStream = new FileInputStream(file);
        int readedBytes;
        byte[] buf = new byte[1024];
        while ((readedBytes = fileInputStream.read(buf)) > 0) {
            bos.write(buf, 0, readedBytes);
        }
        return bos;
    } catch (Exception e) {
        return null;
    } finally {
        try {
            if (fileInputStream != null)
                fileInputStream.close();
        } catch (Exception ignored) {

        }
    }
}

From source file:com.sshtools.j2ssh.transport.publickey.SshPublicKeyFile.java

/**
 *
 *
 * @param keyfile/*from w ww.j a va2 s. c  o m*/
 *
 * @return
 *
 * @throws InvalidSshKeyException
 * @throws IOException
 */
public static SshPublicKeyFile parse(File keyfile) throws InvalidSshKeyException, IOException {
    FileInputStream in = new FileInputStream(keyfile);
    byte[] data = new byte[in.available()];
    in.read(data);
    in.close();

    return parse(data);
}

From source file:ch.entwine.weblounge.common.impl.util.TestUtils.java

/**
 * Loads the <code>XML</code> data from the specified file on the class path
 * and returns it after having stripped off any newlines, line breaks and
 * otherwise disturbing spaces and characters.
 * /*from w  w w .  j  a va  2s  . com*/
 * @param path
 *          the resource path
 * @return the contents of the resource
 */
public static String loadXmlFromResource(String path) {
    File templateFile = new File(TestUtils.class.getResource(path).getPath());
    String template = null;
    try {
        byte[] buffer = new byte[(int) templateFile.length()];
        FileInputStream f = new FileInputStream(templateFile);
        f.read(buffer);
        f.close();
        template = new String(buffer, "utf-8").replaceFirst("<\\?.*?>", "");
        template = template.replaceAll("(>\\s*)+", ">").replaceAll("(\\s*<)+", "<");
    } catch (IOException e) {
        throw new RuntimeException("Error reading test resource at " + path);
    }
    return template;
}

From source file:com.littcore.io.util.ZipUtils.java

/**
 * ?/*from www.ja v a 2s  . c  o  m*/
 * @param files 
 * @param targetFileNamePath 
 * @throws IOException
 */
public static void batchZip(File[] files, String targetFileNamePath) throws IOException {
    //?
    CheckedOutputStream cs = new CheckedOutputStream(new FileOutputStream(targetFileNamePath), new CRC32());
    //zip?
    ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(cs));
    File srcFile = null;
    for (int i = 0; i < files.length; i++) {
        srcFile = files[i];
        out.putNextEntry(new ZipEntry(srcFile.getName()));
        FileInputStream in = new FileInputStream(srcFile);
        int len;
        byte[] buf = new byte[BUFFERED_SIZE];
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        out.closeEntry();
        in.close();
    }
    out.close();
}

From source file:Main.java

public static void copyFile(String src, String dst) {
    FileInputStream in = null;
    FileOutputStream out = null;/* www  .  ja  v  a  2  s.c  o m*/
    try {
        in = new FileInputStream(src);
        out = new FileOutputStream(dst);
        byte[] b = new byte[1024 * 5];
        int len = 0;
        while ((len = in.read(b)) > 0) {
            out.write(b, 0, len);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (out != null) {
                out.close();
            }
            if (in != null) {
                in.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}