| /** |
| * |
| */ |
| package org.apache.mina.http2.api; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * @author jeffmaury |
| * |
| */ |
| public class IntPartialDecoder implements PartialDecoder<Integer> { |
| private int size; |
| private int remaining; |
| private int value; |
| |
| /** |
| * Decode an integer whose size is different from the standard 4. |
| * |
| * @param size the size (1,2,3,4) to decode |
| */ |
| public IntPartialDecoder(int size) { |
| this.remaining = size; |
| this.size = size; |
| } |
| |
| /** |
| * Decode a 4 bytes integer |
| */ |
| public IntPartialDecoder() { |
| this(4); |
| } |
| |
| public boolean consume(ByteBuffer buffer) { |
| if (remaining == 0) { |
| throw new IllegalStateException(); |
| } |
| while (remaining > 0 && buffer.hasRemaining()) { |
| value = (value << 8) + (buffer.get() & 0x00FF); |
| --remaining; |
| } |
| return remaining == 0; |
| } |
| |
| public Integer getValue() { |
| if (remaining > 0) { |
| throw new IllegalStateException(); |
| } |
| return value; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.mina.http2.api.PartialDecoder#reset() |
| */ |
| @Override |
| public void reset() { |
| remaining = size; |
| value = 0; |
| } |
| |
| |
| } |