com.taobao.diamond.common.GroupKey Maven / Gradle / Ivy
package com.taobao.diamond.common;
/**
*
* @author jiuRen
*/
public class GroupKey {
static public String getKey(String dataId, String group) {
StringBuilder sb = new StringBuilder();
urlEncode(dataId, sb);
sb.append('+');
urlEncode(group, sb);
return sb.toString();
}
static public String[] parseKey(String groupKey) {
StringBuilder sb = new StringBuilder();
String dataId = null;
String group = null;
for (int i = 0; i < groupKey.length(); ++i) {
char c = groupKey.charAt(i);
if ('+' == c) {
if (null == dataId) {
dataId = sb.toString();
sb.setLength(0);
} else {
throw new IllegalArgumentException("invalid groupkey:" + groupKey);
}
} else if ('%' == c) {
char next = groupKey.charAt(++i);
char nextnext = groupKey.charAt(++i);
if ('2' == next && 'B' == nextnext) {
sb.append('+');
} else if ('2' == next && '5' == nextnext) {
sb.append('%');
} else {
throw new IllegalArgumentException("invalid groupkey:" + groupKey);
}
} else {
sb.append(c);
}
}
group = sb.toString();
if (group.length() == 0) {
throw new IllegalArgumentException("invalid groupkey:" + groupKey);
}
return new String[] { dataId, group };
}
/**
* + -> %2B
* % -> %25
*/
static void urlEncode(String str, StringBuilder sb) {
for (int idx = 0; idx < str.length(); ++idx) {
char c = str.charAt(idx);
if ('+' == c) {
sb.append("%2B");
} else if ('%' == c) {
sb.append("%25");
} else {
sb.append(c);
}
}
}
public static void main(String[] args) {
System.out.println(GroupKey.getKey("com.taobao.+session%.xml", "online"));
}
}