Symantec Visual Cafe for Java 2.5/symantec-visual-cafe-2.5-database-dev-edition.iso/Visual Cafe Pro v1.0/TUTORIAL.BIN/NetData.class

Java Class File | 1997-01-30 | 4.4 KB | 190 lines

package symantec.itools.db.net;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import symjava.sql.SQLException;

public class NetData extends ServerObject {
   int _length;
   byte[] _data;

   public NetData(byte[] data) {
      this._data = data;
      this._length = data.length;
   }

   public NetData(byte[] data, int len) {
      this._data = data;
      this._length = len;
   }

   public NetData(byte data) {
      this._length = 1;
      this._data = new byte[this._length];
      this._data[0] = data;
   }

   public NetData(short data) {
      this._length = 2;
      this._data = new byte[this._length];
      this._data[0] = (byte)(data >>> 8 & 255);
      this._data[1] = (byte)(data & 255);
   }

   public NetData(boolean data) {
      this._length = 1;
      this._data = new byte[this._length];
      this._data[0] = (byte)(data ? 1 : 0);
   }

   public NetData(int data) {
      this._length = 4;
      this._data = new byte[this._length];
      this._data[0] = (byte)(data >>> 24 & 255);
      this._data[1] = (byte)(data >>> 16 & 255);
      this._data[2] = (byte)(data >>> 8 & 255);
      this._data[3] = (byte)(data & 255);
   }

   public NetData(long data) {
      this._length = 8;
      this._data = new byte[this._length];
      this._data[0] = (byte)((int)(data >>> 56) & 255);
      this._data[1] = (byte)((int)(data >>> 48) & 255);
      this._data[2] = (byte)((int)(data >>> 40) & 255);
      this._data[3] = (byte)((int)(data >>> 32) & 255);
      this._data[4] = (byte)((int)(data >>> 24) & 255);
      this._data[5] = (byte)((int)(data >>> 16) & 255);
      this._data[6] = (byte)((int)(data >>> 8) & 255);
      this._data[7] = (byte)((int)data & 255);
   }

   public NetData(float data) {
      this._length = 4;
      this._data = new byte[this._length];
      int i = Float.floatToIntBits(data);
      this._data[0] = (byte)(i >>> 24 & 255);
      this._data[1] = (byte)(i >>> 16 & 255);
      this._data[2] = (byte)(i >>> 8 & 255);
      this._data[3] = (byte)(i & 255);
   }

   public NetData(double data) {
      this._length = 8;
      this._data = new byte[this._length];
      long l = Double.doubleToLongBits(data);
      this._data[0] = (byte)((int)(l >>> 56) & 255);
      this._data[1] = (byte)((int)(l >>> 48) & 255);
      this._data[2] = (byte)((int)(l >>> 40) & 255);
      this._data[3] = (byte)((int)(l >>> 32) & 255);
      this._data[4] = (byte)((int)(l >>> 24) & 255);
      this._data[5] = (byte)((int)(l >>> 16) & 255);
      this._data[6] = (byte)((int)(l >>> 8) & 255);
      this._data[7] = (byte)((int)l & 255);
   }

   public NetData(String data) {
      this._length = data.length();
      this._data = new byte[this._length];

      for(int i = 0; i < this._length; ++i) {
         this._data[i] = (byte)data.charAt(i);
      }

   }

   public NetData() {
      this._length = 0;
      this._data = new byte[this._length];
   }

   int getType() {
      return 51;
   }

   void read(DataInputStream in) throws SQLException, IOException, ErrorException {
      this._length = in.readShort();
      if (this._length > 0) {
         this._data = new byte[this._length];
         in.readFully(this._data, 0, this._length);
      }

   }

   void write(DataOutputStream out) throws IOException {
      out.writeByte(this.getType());
      out.writeShort(this._length);
      if (this._length > 0) {
         out.write(this._data, 0, this._length);
      }

   }

   public int getInt() throws EOFException {
      if (this._length >= 4) {
         int b1 = this._data[0] & 255;
         int b2 = this._data[1] & 255;
         int b3 = this._data[2] & 255;
         int b4 = this._data[3] & 255;
         return (b1 << 24) + (b2 << 16) + (b3 << 8) + b4;
      } else {
         throw new EOFException();
      }
   }

   public short getShort() throws EOFException {
      if (this._length >= 2) {
         int i1 = this._data[0] & 255;
         int i2 = this._data[1] & 255;
         return (short)((i1 << 8) + i2);
      } else {
         throw new EOFException();
      }
   }

   public boolean getBool() throws EOFException {
      if (this._length >= 1) {
         int i = this._data[0];
         return i != 0;
      } else {
         throw new EOFException();
      }
   }

   public byte getByte() throws EOFException {
      if (this._length >= 1) {
         return (byte)(this._data[0] & 255);
      } else {
         throw new EOFException();
      }
   }

   public long getLong() throws EOFException {
      if (this._length >= 8) {
         int i1 = this.getInt();
         int b1 = this._data[4] & 255;
         int b2 = this._data[5] & 255;
         int b3 = this._data[6] & 255;
         int b4 = this._data[7] & 255;
         int i2 = (b1 << 24) + (b2 << 16) + (b3 << 8) + b4;
         return ((long)i1 << 32) + ((long)i2 & 4294967295L);
      } else {
         throw new EOFException();
      }
   }

   public float getFloat() throws EOFException {
      return Float.intBitsToFloat(this.getInt());
   }

   public double getDouble() throws EOFException {
      return Double.longBitsToDouble(this.getLong());
   }

   public byte[] getBytes() {
      return this._data;
   }
}