org.math.io.littleendian.LEDataInputStream Maven / Gradle / Ivy
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package org.math.io.littleendian;
import java.io.*;
/**
* This class was designed on the base of Roedy Green LEDataInputStream
*
* Thanks to Roedy Green, Canadian Mind Products mailto:[email protected]
* http://mindprod.com
*
* @author Yann RICHET
*/
public class LEDataInputStream implements DataInput {
protected DataInputStream d;
protected InputStream in;
byte w[];
public LEDataInputStream(InputStream in) {
this.in = in;
this.d = new DataInputStream(in);
w = new byte[8];
}
public short readShort() throws IOException {
d.readFully(w, 0, 2);
return (short) ((w[1] & 0xff) << 8 | (w[0] & 0xff));
}
public int readUnsignedShort() throws IOException {
d.readFully(w, 0, 2);
return ((w[1] & 0xff) << 8 | (w[0] & 0xff));
}
public char readChar() throws IOException {
d.readFully(w, 0, 2);
return (char) ((w[1] & 0xff) << 8 | (w[0] & 0xff));
}
public int readInt() throws IOException {
d.readFully(w, 0, 4);
return (w[3]) << 24 | (w[2] & 0xff) << 16 | (w[1] & 0xff) << 8
| (w[0] & 0xff);
}
public long readLong() throws IOException {
d.readFully(w, 0, 8);
return (long) (w[7]) << 56 | (long) (w[6] & 0xff) << 48
| (long) (w[5] & 0xff) << 40 | (long) (w[4] & 0xff) << 32
| (long) (w[3] & 0xff) << 24 | (long) (w[2] & 0xff) << 16
| (long) (w[1] & 0xff) << 8 | (long) (w[0] & 0xff);
}
public float readFloat() throws IOException {
return Float.intBitsToFloat(readInt());
}
public double readDouble() throws IOException {
return Double.longBitsToDouble(readLong());
}
public int read(byte b[], int off, int len) throws IOException {
return in.read(b, off, len);
}
public void readFully(byte b[]) throws IOException {
d.readFully(b, 0, b.length);
}
public void readFully(byte b[], int off, int len) throws IOException {
d.readFully(b, off, len);
}
public int skipBytes(int n) throws IOException {
return d.skipBytes(n);
}
public boolean readBoolean() throws IOException {
return d.readBoolean();
}
public byte readByte() throws IOException {
return d.readByte();
}
public int readUnsignedByte() throws IOException {
return d.readUnsignedByte();
}
public String readLine() throws IOException {
return null;// d.readLine();
}
public String readUTF() throws IOException {
return d.readUTF();
}
public static String readUTF(DataInput in) throws IOException {
return DataInputStream.readUTF(in);
}
public void close() throws IOException {
d.close();
}
}