/**
* @param args
* @throws UnsupportedEncodingException
*/
public static void main(String[] args) throws UnsupportedEncodingException {
RingBuffer buf = new RingBuffer(20);
int num;
String str;
System.out.println("Start");
printBuffer(buf);
num = buf.append("Hello World!".getBytes("ASCII"));
System.out.println("Added " + num);
printBuffer(buf);
num = buf.append("Hello World!".getBytes("ASCII"));
System.out.println("Added " + num);
printBuffer(buf);
buf.reset();
System.out.println("Reset buffer");
printBuffer(buf);
num = buf.append("Foo bar baz quux".getBytes("ASCII"));
System.out.println("Added " + num);
printBuffer(buf);
num = buf.skip(16); // 8
System.out.println("Skipped " + num);
printBuffer(buf);
num = buf.append("FOO BAR BAZ QUUX".getBytes("ASCII"));
System.out.println("Added " + num);
printBuffer(buf);
str = new String(buf.read(8), "ASCII");
System.out.println("Read \"" + str + "\"");
printBuffer(buf);
str = new String(buf.read(4), "ASCII");
System.out.println("Read \"" + str + "\"");
printBuffer(buf);
str = new String(buf.read(10), "ASCII");
System.out.println(
"Read \"" + str + "\" (tried to read 10 bytes, but only got " + str.length() + ")");
printBuffer(buf);
// num = buf.append("ABCDEFGHIJKLMNOPQRSTUVWXYZ".getBytes("ASCII"));
// System.out.println("Added " + num + " - new length = " + buf.getLen());
// printBuffer(buf);
}
protected static void printBuffer(RingBuffer buf) {
byte[] buffer = buf.getBuffer();
for (int i = 0; i < buffer.length; i++) {
if (buffer[i] >= 0x20 && buffer[i] < 0x7F) {
try {
System.out.print(" " + new String(buffer, i, 1, "ASCII"));
} catch (UnsupportedEncodingException e) {
}
} else if (buffer[i] >= 7 && buffer[i] <= 13) {
System.out.print("\\" + backslashEscapes.charAt(buffer[i] - 7));
} else {
System.out.print(String.format("%02x", buffer[i]));
}
System.out.print(" ");
}
System.out.println();
int pos = buf.getPos();
int len = buf.getLen();
int cap = buf.getCapacity();
for (int i = 0; i < cap; i++) {
if ((i >= pos && i < pos + len) || (pos + len > cap && i < (pos + len) % cap)) {
if (i == pos) {
System.out.print("-^-");
} else {
System.out.print("---");
}
} else if (i == pos) {
System.out.print(" ^ ");
} else {
System.out.print(" ");
}
}
System.out.println("\n"); // two lines
}