Moved some files and fixed some performance issues

src/zutil/io/DynamicByteArrayStream.java

@@ -0,0 +1,112 @@
+package zutil.io;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+
+public class DynamicByteArrayStream extends InputStream{
+	/** The byte array container */
+	private ArrayList<byte[]> bytes;
+	/** The current size of the stream */
+	private int size;
+	/** points to the current index in the ArrayList */
+	private int byteArrayIndex;
+	/** points locally in the current index in the ArrayList */
+	private int localPointer;
+	/** The current position */
+	private int pos;
+
+	/**
+	 * Create a new instance of DynamicByteArrayStream
+	 */
+	public DynamicByteArrayStream(){
+		bytes = new ArrayList<byte[]>();
+		size = 0;
+		byteArrayIndex = 0;
+		localPointer = 0;
+		pos = 0;
+	}
+
+	/**
+	 * Append an byte array to the stream
+	 * @param b The byte array to add
+	 */
+	public synchronized void add(byte[] b){
+		bytes.add(b);
+		size += b.length;
+	}
+
+	@Override
+	public synchronized int read() throws IOException {
+		if(pos >= size)	return -1;
+		
+		int ret = bytes.get(byteArrayIndex)[localPointer] & 0xff;
+		pos++;
+		localPointer++;
+		if(localPointer >= bytes.get(byteArrayIndex).length){
+			byteArrayIndex++;
+			localPointer = 0;
+		}
+		return ret;
+	}
+
+	public synchronized int read(byte b[], int off, int len) {
+		//System.out.println("*****************************************************");
+		//System.out.println("off: "+off+" len: "+len);
+		//System.out.println("size: "+size+" arraylen: "+bytes.size());
+		//System.out.println("pos: "+pos+" localPointer: "+localPointer);
+		if(len <= 0) return 0;
+		if(pos >= size)	return -1;
+		
+		int bytes_read = 0;
+		if(pos+len >= size) len = size - pos;
+		for(int i=0; i<len ;i++){
+			byte[] src = bytes.get(byteArrayIndex);
+			if(localPointer+len-i >= src.length){
+				//System.out.println("1");
+				int length = src.length-localPointer;
+				System.arraycopy(src, localPointer, b, off+i, length);
+				
+				localPointer = 0;
+				byteArrayIndex++;
+				bytes_read += length;
+				i += length;
+			}
+			else{
+				//System.out.println("2");
+				int length = len-i;
+				System.arraycopy(src, localPointer, b, off+i, length);
+				
+				localPointer += length;
+				bytes_read += length;
+				i += length;
+			}
+		}
+		pos += len;
+		//System.out.println("new_pos: "+pos+" read: "+bytes_read);
+		return bytes_read;
+	}
+
+	public synchronized int available() {
+		return size - pos;
+	}
+
+	/**
+	 * Clears this stream from the byte arrays
+	 */
+	public synchronized void clear(){
+		size = 0;
+		reset();
+		bytes.clear();
+	}
+	
+	public synchronized void reset() {
+		byteArrayIndex = 0;
+		localPointer = 0;
+		pos = 0;
+	}
+
+	public void close() throws IOException {
+		//bytes = null;
+	}
+}