| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.gora.accumulo.encoders; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.gora.accumulo.util.FixedByteArrayOutputStream; |
| |
| /** |
| * |
| */ |
| public class BinaryEncoder implements Encoder { |
| public byte[] encodeShort(short s) { |
| return encodeShort(s, new byte[2]); |
| } |
| |
| public byte[] encodeShort(short s, byte ret[]) { |
| try { |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeShort(s); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public short decodeShort(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| short s = dis.readShort(); |
| return s; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeInt(int i) { |
| return encodeInt(i, new byte[4]); |
| } |
| |
| public byte[] encodeInt(int i, byte ret[]) { |
| try { |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeInt(i); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public int decodeInt(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| int i = dis.readInt(); |
| return i; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeLong(long l) { |
| return encodeLong(l, new byte[8]); |
| } |
| |
| public byte[] encodeLong(long l, byte ret[]) { |
| try { |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeLong(l); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public long decodeLong(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| long l = dis.readLong(); |
| return l; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeDouble(double d) { |
| return encodeDouble(d, new byte[8]); |
| } |
| |
| public byte[] encodeDouble(double d, byte[] ret) { |
| try { |
| long l = Double.doubleToRawLongBits(d); |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeLong(l); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public double decodeDouble(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| long l = dis.readLong(); |
| return Double.longBitsToDouble(l); |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeFloat(float d) { |
| return encodeFloat(d, new byte[4]); |
| } |
| |
| public byte[] encodeFloat(float f, byte[] ret) { |
| try { |
| int i = Float.floatToRawIntBits(f); |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeInt(i); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public float decodeFloat(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| int i = dis.readInt(); |
| return Float.intBitsToFloat(i); |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeByte(byte b, byte[] ret) { |
| ret[0] = 0; |
| return ret; |
| } |
| |
| public byte[] encodeByte(byte b) { |
| return encodeByte(b, new byte[1]); |
| } |
| |
| public byte decodeByte(byte[] a) { |
| return a[0]; |
| } |
| |
| public boolean decodeBoolean(byte[] a) { |
| try { |
| DataInputStream dis = new DataInputStream(new ByteArrayInputStream(a)); |
| return dis.readBoolean(); |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| public byte[] encodeBoolean(boolean b) { |
| return encodeBoolean(b, new byte[1]); |
| } |
| |
| public byte[] encodeBoolean(boolean b, byte[] ret) { |
| try { |
| DataOutputStream dos = new DataOutputStream(new FixedByteArrayOutputStream(ret)); |
| dos.writeBoolean(b); |
| return ret; |
| } catch (IOException ioe) { |
| throw new RuntimeException(ioe); |
| } |
| } |
| |
| @Override |
| public byte[] lastPossibleKey(int size, byte[] er) { |
| return Utils.lastPossibleKey(size, er); |
| } |
| |
| @Override |
| public byte[] followingKey(int size, byte[] per) { |
| return Utils.followingKey(size, per); |
| } |
| } |