1package com.sleepycat.util;
2
3public class ErrorBuffer {
4	String[] msgs;
5	int first, current;
6
7	public ErrorBuffer(int num_msg) {
8		msgs = new String[num_msg];
9		clear();
10	}
11
12	public void append(String msg) {
13		msgs[current] = msg;
14		current = (current + 1) % msgs.length;
15		if (current == first)
16			first = (first + 1) % msgs.length;
17	}
18
19	public String get() {
20		StringBuffer buf = new StringBuffer();
21		for (int i = first; i != current; i = (i + 1) % msgs.length) {
22			buf.append(msgs[i]);
23			if ((i + 1) % msgs.length != current)
24				buf.append("\n");
25		}
26		return buf.toString();
27	}
28
29	public void clear() {
30		current = first = 0;
31	}
32}
33
34