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KeyUtils.java
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/*
* Copyright 2017 PingCAP, Inc.
*
* 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,
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.tikv.common.codec;
import com.google.common.primitives.UnsignedBytes;
import com.google.protobuf.ByteString;
import com.google.protobuf.TextFormat;
import org.tikv.kvproto.Coprocessor;
public class KeyUtils {
public static String formatBytes(byte[] bytes) {
if (bytes == null) return "null";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
int unsignedByte = UnsignedBytes.toInt(bytes[i]);
sb.append(unsignedByte);
if (i != bytes.length - 1) {
sb.append(",");
}
}
return sb.toString();
}
public static String formatBytes(ByteString bytes) {
if (bytes == null) return "null";
return formatBytes(bytes.toByteArray());
}
public static String formatBytes(Coprocessor.KeyRange keyRange) {
return "([" + formatBytes(keyRange.getStart()) + "], [" + formatBytes(keyRange.getEnd()) + "])";
}
public static String formatBytesUTF8(byte[] bytes) {
if (bytes == null) return "null";
return TextFormat.escapeBytes(bytes);
}
public static String formatBytesUTF8(ByteString bytes) {
if (bytes == null) return "null";
return formatBytesUTF8(bytes.toByteArray());
}
public static String formatBytesUTF8(Coprocessor.KeyRange keyRange) {
return "(["
+ formatBytesUTF8(keyRange.getStart())
+ "], ["
+ formatBytesUTF8(keyRange.getEnd())
+ "])";
}
public static boolean hasPrefix(ByteString str, ByteString prefix) {
if (prefix.size() > str.size()) {
return false;
}
for (int i = 0; i < prefix.size(); i++) {
if (str.byteAt(i) != prefix.byteAt(i)) {
return false;
}
}
return true;
}
}