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 readSDFile(String fileName) throws IOException {

    File file = new File(fileName);

    FileInputStream fis = new FileInputStream(file);

    int length = fis.available();

    byte[] buffer = new byte[length];
    fis.read(buffer);

    String res = EncodingUtils.getString(buffer, "UTF-8");

    fis.close();//from   w w  w  .  jav a2  s . c  o  m
    return res;
}

From source file:Main.java

public static byte[] getFileByte(File file) {
    if (!file.exists()) {
        return null;
    }// w  w  w . j av  a2 s  .com
    try {
        FileInputStream fis = new FileInputStream(file);
        int len = fis.available();
        byte[] bytes = new byte[len];
        fis.read(bytes);
        fis.close();
        return bytes;
    } catch (Exception e) {

    }

    return null;
}

From source file:Main.java

public static byte[] readBytes(String file) {
    try {//from   w w w .j a v  a  2s  .co  m
        FileInputStream fis = new FileInputStream(file);
        int len = fis.available();
        byte[] buffer = new byte[len];
        fis.read(buffer);
        fis.close();
        return buffer;
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }

    return null;

}

From source file:Main.java

public static byte[] read(Context context, String fileName) throws FileNotFoundException, IOException {

    File file = getFile(context, fileName);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    if (file != null) {
        FileInputStream fis = new FileInputStream(file);
        byte[] data = new byte[fis.available()];
        fis.read(data);
        bos.write(data);//from  www  .  j  a  v  a 2s  . c o  m
        fis.close();
    }

    return bos.toByteArray();
}

From source file:Main.java

/**
 * Read data from file./*from   w ww.  j  av  a 2 s.c o  m*/
 *
 * @param fileName
 * @return
 */
public static String readFile(String fileName) {
    String ret = "";
    try {
        FileInputStream fin = new FileInputStream(fileName);
        int length = fin.available();
        byte[] buffer = new byte[length];
        fin.read(buffer);
        //         ret = EncodingUtils.getString(buffer, "UTF-8");
        ret = buffer.toString();
        fin.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return ret;
}

From source file:Main.java

public static boolean copy(File source, File target) {
    if (source == null || target == null || !source.exists() || source.length() < 100) {
        return false;
    }//from w w w .  j a v  a  2  s  .  co m
    try {
        FileOutputStream fos = new FileOutputStream(target);
        FileInputStream fis = new FileInputStream(source);
        int len = 0;
        byte[] buffer = new byte[1024];
        while ((len = fis.read(buffer)) != -1) {
            fos.write(buffer, 0, len);
        }
        fos.flush();
        fos.close();
        fis.close();
        return true;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

From source file:Main.java

/**
 * @param fileName//from w ww.  j a  v  a  2  s.c  o  m
 */
public static String readFileByLines(String fileName) {
    String res = "";
    try {
        FileInputStream fin = new FileInputStream(fileName);
        int length = fin.available();
        byte[] buffer = new byte[length + 1024];
        fin.read(buffer);
        res = EncodingUtils.getString(buffer, "UTF-8");
        fin.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return res;
}

From source file:com.chargebee.MethodBank.MethodBank.java

public static JSONObject readJsonObjectData(String fileName) throws Exception { //processes the Json object and returns in the required format. 
    File f = new File(fileName);
    FileInputStream fr = new FileInputStream(f);
    byte[] b = new byte[fr.available()];
    fr.read(b);
    JSONObject jobj = new JSONObject(new String(b));
    return jobj; // The required Json object

}

From source file:com.chargebee.MethodBank.MethodBank.java

public static JSONArray readJsonArrayData(String fileName) throws Exception { //processes the Json array and returns in the required format. 
    File f = new File(fileName);
    FileInputStream fr = new FileInputStream(f);
    byte[] b = new byte[fr.available()];
    fr.read(b);
    JSONArray jarr = new JSONArray(new String(b));
    return jarr; // The required Json array

}

From source file:net.itransformers.bgpPeeringMap.BgpPeeringMapFromFile.java

private static byte[] readRawDataFile(String rawData) throws Exception {
    FileInputStream is = new FileInputStream(rawData);
    byte[] data = new byte[is.available()];
    is.read(data);
    return data;/*from w w w  . j  a v  a 2 s  . com*/
}