提交 7a6c3740 编写于 作者: 8 844392610

Revert "Improve performance of expandIP, and readable"

This reverts commit 2baae144
上级 2baae144
......@@ -206,31 +206,61 @@ public class AclUtils {
}
public static String expandIP(String netaddress, int part) {
// expand netaddress
int separatorCount = StringUtils.countMatches(netaddress, ":");
int padCount = part - separatorCount;
if(padCount > 0){
StringBuilder padStr = new StringBuilder(":");
for(int i = 0; i < padCount; i++){
padStr.append(":");
boolean compress = false;
int compressIndex = -1;
String[] strArray = StringUtils.split(netaddress, ":");
ArrayList<Integer> indexes = new ArrayList<>();
for (int i = 0; i < netaddress.length(); i++) {
if (netaddress.charAt(i) == ':') {
if (indexes.size() > 0 && i - indexes.get(indexes.size() - 1) == 1) {
compressIndex = i;
compress = true;
}
indexes.add(i);
}
netaddress = StringUtils.replace(netaddress, "::", padStr.toString());
}
// pad netaddress
String[] strArray = StringUtils.splitPreserveAllTokens(netaddress, ":");
for (int i = 0; i < strArray.length; i++) {
if(strArray[i].length() < 4){
strArray[i] = StringUtils.leftPad(strArray[i], 4, '0');
if (strArray[i].length() < 4) {
strArray[i] = "0000".substring(0, 4 - strArray[i].length()) + strArray[i];
}
}
// output
StringBuilder sb = new StringBuilder();
for (int i = 0; i < strArray.length; i++) {
sb.append(strArray[i]);
if (i != strArray.length - 1) {
sb.append(":");
if (compress) {
int pos = indexes.indexOf(compressIndex);
int index = 0;
if (!netaddress.startsWith(":")) {
for (int i = 0; i < pos; i++) {
sb.append(strArray[index]).append(":");
index += 1;
}
}
int zeroNum = part - strArray.length;
if (netaddress.endsWith(":")) {
for (int i = 0; i < zeroNum; i++) {
sb.append("0000");
if (i != zeroNum - 1) {
sb.append(":");
}
}
} else {
for (int i = 0; i < zeroNum; i++) {
sb.append("0000").append(":");
}
for (int i = index; i < strArray.length; i++) {
sb.append(strArray[i]);
if (i != strArray.length - 1) {
sb.append(":");
}
}
}
} else {
for (int i = 0; i < strArray.length; i++) {
sb.append(strArray[i]);
if (i != strArray.length - 1) {
sb.append(":");
}
}
}
return sb.toString().toUpperCase();
......
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