Example usage for java.io FileInputStream close

Introduction

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

Prototype

public void close() throws IOException

Source Link

Document

Closes this file input stream and releases any system resources associated with the stream.

Usage

From source file:Main.java

public static String readXmlAsString(File input) throws IOException {
    String xmlString = "";

    if (input == null) {
        throw new IOException("The input stream object is null.");
    }//from   w  w w .  j a  va2 s.c o m

    FileInputStream fileInputStream = new FileInputStream(input);
    InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
    BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
    String line = bufferedReader.readLine();
    while (line != null) {
        xmlString += line + "\n";
        line = bufferedReader.readLine();
    }
    fileInputStream.close();
    fileInputStream.close();
    bufferedReader.close();

    return xmlString;
}

From source file:Compress.java

/** Zip the contents of the directory, and save it in the zipfile */
public static void zipDirectory(String dir, String zipfile) throws IOException, IllegalArgumentException {
    // Check that the directory is a directory, and get its contents
    File d = new File(dir);
    if (!d.isDirectory())
        throw new IllegalArgumentException("Compress: not a directory:  " + dir);
    String[] entries = d.list();/*from  w w  w  .  ja va  2  s .co m*/
    byte[] buffer = new byte[4096]; // Create a buffer for copying
    int bytes_read;

    // Create a stream to compress data and write it to the zipfile
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));

    // Loop through all entries in the directory
    for (int i = 0; i < entries.length; i++) {
        File f = new File(d, entries[i]);
        if (f.isDirectory())
            continue; // Don't zip sub-directories
        FileInputStream in = new FileInputStream(f); // Stream to read file
        ZipEntry entry = new ZipEntry(f.getPath()); // Make a ZipEntry
        out.putNextEntry(entry); // Store entry
        while ((bytes_read = in.read(buffer)) != -1)
            // Copy bytes
            out.write(buffer, 0, bytes_read);
        in.close(); // Close input stream
    }
    // When we're done with the whole loop, close the output stream
    out.close();
}

From source file:Main.java

public static Bitmap getBitmapByPath(String filePath, BitmapFactory.Options opts) {
    FileInputStream fis = null;
    Bitmap bitmap = null;/*from w  w  w  .j a v  a  2s  .  c om*/
    try {
        File file = new File(filePath);
        fis = new FileInputStream(file);
        bitmap = BitmapFactory.decodeStream(fis, null, opts);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (OutOfMemoryError e) {
        e.printStackTrace();
    } finally {
        try {
            fis.close();
        } catch (Exception e) {
        }
    }
    return bitmap;
}

From source file:Main.java

public static String read(File file) throws IOException {
    FileInputStream in = null;
    try {//from   w w  w. j  a  v a 2 s  .  c o  m
        in = new FileInputStream(file);
        return read(in);
    } finally {
        try {
            if (in != null)
                in.close();
        } catch (Throwable t) {
        }
    }
}

From source file:de.helmholtz_muenchen.ibis.utils.ngs.samsplitter.helpers.FileHelpers.java

/**
 * Returns md5 sum for a given file/*from   ww w.  ja  va2 s .c o  m*/
 * @param file
 * @return
 */
public static String getmd5Sum(String file) {

    FileInputStream fis;
    try {
        fis = new FileInputStream(new File(file));
        String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(fis);
        fis.close();
        return md5;
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return "";
}

From source file:org.openmrs.module.omodexport.util.OmodExportUtil.java

/**
 * Utility method for zipping a list of files
 * //from w w  w.  jav  a2 s  .co  m
 * @param files -The list of files to zip
 * @param out
 * @throws FileNotFoundException
 * @throws IOException
 */
public static void zipFiles(List<File> files, ZipOutputStream out) throws FileNotFoundException, IOException {
    byte[] buffer = new byte[4096]; // Create a buffer for copying
    int bytesRead;

    for (File f : files) {
        if (f.isDirectory())
            continue;// Ignore directory
        FileInputStream in = new FileInputStream(f); // Stream to read file
        out.putNextEntry(new ZipEntry(f.getName())); // Store entry
        while ((bytesRead = in.read(buffer)) != -1)
            out.write(buffer, 0, bytesRead);
        in.close();
    }

    out.close();
}

From source file:fm.moe.android.util.JSONFileHelper.java

private static String readFile(final File file) throws IOException {
    final FileInputStream stream = new FileInputStream(file);
    try {/*w w w .j  a v a2  s  . c o m*/
        final FileChannel fc = stream.getChannel();
        final MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
        /* Instead of using default, pass in a decoder. */
        return Charset.defaultCharset().decode(bb).toString();
    } finally {
        stream.close();
    }
}

From source file:it.geosolutions.imageio.plugins.nitronitf.NITFImageWriterSpi.java

public static boolean isNITF(File file) {
    FileInputStream fin = null;
    try {/*  w  w w. j  a va  2 s  .com*/
        fin = new FileInputStream(file);
        byte[] firstFour = new byte[4];
        fin.read(firstFour);
        return new String(firstFour).equals("NITF");
    } catch (IOException e) {
        return false;
    } finally {
        try {
            if (fin != null)
                fin.close();
        } catch (IOException e) {
            log.error(ExceptionUtils.getStackTrace(e));
        }
    }
}

From source file:Main.java

/**
 * Reads the given file, translating {@link IOException} to a
 * {@link RuntimeException} of some sort.
 *
 * @param file {@code non-null;} the file to read
 * @return {@code non-null;} contents of the file
 *///from  w  w  w  .j  ava2 s . c  o  m
public static byte[] readFile(File file) {
    if (!file.exists()) {
        throw new RuntimeException(file + ": file not found");
    }

    if (!file.isFile()) {
        throw new RuntimeException(file + ": not a file");
    }

    if (!file.canRead()) {
        throw new RuntimeException(file + ": file not readable");
    }

    long longLength = file.length();
    int length = (int) longLength;
    if (length != longLength) {
        throw new RuntimeException(file + ": file too long");
    }

    byte[] result = new byte[length];

    try {
        FileInputStream in = new FileInputStream(file);
        int at = 0;
        while (length > 0) {
            int amt = in.read(result, at, length);
            if (amt == -1) {
                throw new RuntimeException(file + ": unexpected EOF");
            }
            at += amt;
            length -= amt;
        }
        in.close();
    } catch (IOException ex) {
        throw new RuntimeException(file + ": trouble reading", ex);
    }

    return result;
}

From source file:Main.java

public static void copyFile(File src, File dst) throws IOException {
    FileInputStream in = new FileInputStream(src);
    FileOutputStream out = new FileOutputStream(dst);
    FileChannel inChannel = in.getChannel();
    FileChannel outChannel = out.getChannel();

    try {//from   w  w w  . j a v a 2 s.  c o m
        inChannel.transferTo(0, inChannel.size(), outChannel);
    } finally {
        if (inChannel != null) {
            inChannel.close();
        }
        outChannel.close();
    }

    in.close();
    out.close();
}