/*
* Copyright 2014 NAVER Corp.
*
* Licensed 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 com.navercorp.pinpoint.web.dao.hbase.filter;
import java.util.Arrays;
import org.junit.Test;
import com.navercorp.pinpoint.common.util.BytesUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PrefixFilterTest {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
@Test
public void prefixInt() {
byte[] before = new byte[4];
for (int i = 1000; i < 1100; i++) {
byte[] buffer = new byte[4];
BytesUtils.writeVar32(i, buffer, 0);
logger.debug(compare(before, buffer) + ", " + compare(buffer, before) + ", " + compare(buffer, buffer));
before = Arrays.copyOf(buffer, 4);
logger.debug(Arrays.toString(buffer));
}
}
public int compare(byte[] left, byte[] right) {
for (int i = 0, j = 0; i < left.length && j < right.length; i++, j++) {
int a = (left[i] & 0xff);
int b = (right[j] & 0xff);
if (a != b) {
return a - b;
}
}
return left.length - right.length;
}
}