private void setProperty(String name, String value) {
Object expr = value;
if (value != null) {
expr = CompositeExpression.parse(value);
}
if (expr == null) {
getValues().remove(name);
getKeys().remove(name);
} else {
getValues().put(name, expr);
getValues().put(StringUtil.getValidIdentifier(name), expr);
getKeys().add(name);
}
}
/**
* 对所有properties的key排序并分组。
*
* @param level 分组的级别
* @return 分组列表
*/
private List[] getSortedKeys(Map props, int level) {
List keys = new ArrayList(props.keySet());
Collections.sort(keys);
List groups = new ArrayList();
List group = null;
String prefix = null;
for (Iterator i = keys.iterator(); i.hasNext(); ) {
String key = (String) i.next();
String[] parts = StringUtil.split(key, ".");
StringBuffer buffer = new StringBuffer();
for (int j = 0; j < parts.length - 1 && j < level; j++) {
if (buffer.length() > 0) {
buffer.append('.');
}
buffer.append(parts[j]);
}
String keyPrefix = buffer.toString();
if (!keyPrefix.equals(prefix)) {
if (group != null) {
groups.add(group);
}
prefix = keyPrefix;
group = new ArrayList();
}
group.add(key);
}
if (group != null && group.size() > 0) {
groups.add(group);
}
return (List[]) groups.toArray(new List[groups.size()]);
}
/**
* 将\uxxxx转换成unicode字符，将特殊符号转换成其原来的格式。
*
* @param str 要转换的字符串
* @return 转换后的字符串
*/
private String loadConvert(String str, String url, int lineNumber) {
char ch;
int len = str.length();
StringBuffer buffer = new StringBuffer(len);
if (StringUtil.isEmpty(url)) {
url = "<unknown source>";
}
for (int x = 0; x < len; ) {
ch = str.charAt(x++);
if (ch == '\\') {
ch = str.charAt(x++);
if (ch == 'u') {
// Read the xxxx
int value = 0;
for (int i = 0; i < 4; i++) {
ch = str.charAt(x++);
switch (ch) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
value = (value << 4) + ch - '0';
break;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
value = (value << 4) + 10 + ch - 'a';
break;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
value = (value << 4) + 10 + ch - 'A';
break;
default:
throw new IllegalArgumentException(
"Malformed \\uxxxx encoding at " + url + ", line " + lineNumber);
}
}
buffer.append((char) value);
} else {
if (ch == '\\') {
ch = '\\';
} else if (ch == 't') {
ch = '\t';
} else if (ch == 'r') {
ch = '\r';
} else if (ch == 'n') {
ch = '\n';
} else if (ch == 'f') {
ch = '\f';
} else {
throw new IllegalArgumentException(
"Invalid \\" + ch + " at " + url + ", line " + lineNumber);
}
buffer.append(ch);
}
} else {
buffer.append(ch);
}
}
return buffer.toString();
}