public static void addAll(Vector to, Vector all) {
synchronized (to) {
for (int i = 0; i < all.size(); ++i) {
to.addElement(all.elementAt(i));
}
}
}
public static void addNew(Vector to, Vector all) {
synchronized (to) {
for (int i = 0; i < all.size(); ++i) {
if (0 <= Util.getIndex(to, all.elementAt(i))) continue;
to.addElement(all.elementAt(i));
}
}
}
public static boolean hasURL(String msg) {
if (null == msg) return false;
Vector<String> result = new Vector<String>();
parseForUrl(result, msg, '.', URL_CHAR_PREV, URL_CHAR_OTHER, 1);
parseForUrl(result, msg, ':', URL_CHAR_PROTOCOL, URL_CHAR_OTHER, 1);
parseForUrl(result, msg, '+', URL_CHAR_NONE, URL_CHAR_DIGIT, 1);
parseForUrl(result, msg, '@', URL_CHAR_PREV, URL_CHAR_OTHER, 1);
return !result.isEmpty();
}
public static int getIndex(Vector v, Object o) {
synchronized (v) {
int size = v.size();
for (int i = 0; i < size; ++i) {
if (v.elementAt(i) == o) {
return i;
}
}
}
return -1;
}
public static Vector parseMessageForURL(String msg) {
if (null == msg) return null;
// we are parsing 100 links only
final int MAX_LINK_COUNT = 100;
Vector<String> result = new Vector<String>();
parseForUrl(result, msg, '.', URL_CHAR_PREV, URL_CHAR_OTHER, MAX_LINK_COUNT);
parseForUrl(result, msg, ':', URL_CHAR_PROTOCOL, URL_CHAR_OTHER, MAX_LINK_COUNT);
parseForUrl(result, msg, '+', URL_CHAR_NONE, URL_CHAR_DIGIT, MAX_LINK_COUNT);
parseForUrl(result, msg, '@', URL_CHAR_PREV, URL_CHAR_OTHER, MAX_LINK_COUNT);
return result.isEmpty() ? null : result;
}
public static void sort(Vector subnodes) {
for (int i = 1; i < subnodes.size(); ++i) {
Sortable currNode = (Sortable) subnodes.elementAt(i);
int j = i - 1;
for (; j >= 0; --j) {
Sortable itemJ = (Sortable) subnodes.elementAt(j);
if (compareNodes(itemJ, currNode) <= 0) {
break;
}
subnodes.setElementAt(itemJ, j + 1);
}
if (j + 1 != i) {
subnodes.setElementAt(currNode, j + 1);
}
}
}
private static void parseForUrl(
Vector<String> result, String msg, char ch, int before, int after, int limit) {
if (limit <= result.size()) {
return;
}
int size = msg.length();
int findIndex = 0;
int beginIdx;
int endIdx;
for (; ; ) {
if (findIndex >= size) break;
int ptIndex = msg.indexOf(ch, findIndex);
if (ptIndex == -1) break;
for (endIdx = ptIndex + 1; endIdx < size; ++endIdx) {
if (!isURLChar(msg.charAt(endIdx), after)) {
break;
}
}
findIndex = endIdx;
if (endIdx - ptIndex < 2) continue;
if (URL_CHAR_NONE != before) {
for (beginIdx = ptIndex - 1; beginIdx >= 0; --beginIdx) {
if (!isURLChar(msg.charAt(beginIdx), before)) {
break;
}
}
if ((beginIdx == -1) || !isURLChar(msg.charAt(beginIdx), before)) {
beginIdx++;
}
if (ptIndex == beginIdx) continue;
} else {
beginIdx = ptIndex;
if ((0 < beginIdx) && !isURLChar(msg.charAt(beginIdx - 1), before)) {
continue;
}
}
if (endIdx - beginIdx < 5) continue;
putUrl(result, msg.substring(beginIdx, endIdx));
if (limit < result.size()) {
return;
}
}
}
/* Divide text to array of parts using serparator charaster */
public static String[] explode(String text, char separator) {
if (StringUtils.isEmpty(text)) {
return new String[0];
}
Vector<String> tmp = new Vector<String>();
int start = 0;
int end = text.indexOf(separator, start);
while (end >= start) {
tmp.addElement(text.substring(start, end));
start = end + 1;
end = text.indexOf(separator, start);
}
tmp.addElement(text.substring(start));
String[] result = new String[tmp.size()];
tmp.copyInto(result);
return result;
}
public static void removeAll(Vector to, Vector all) {
synchronized (to) {
int current = 0;
for (int index = 0; index < to.size(); ++index) {
if (0 <= Util.getIndex(all, to.elementAt(index))) continue;
if (current < index) {
to.setElementAt(to.elementAt(index), current);
current++;
}
}
if (current < to.size()) to.setSize(current);
}
}
private static void putUrl(Vector<String> urls, String url) {
final String skip = "?!;:,.";
final String openDelemiters = "{[(«";
final String delemiters = "}])»";
int cutIndex = url.length() - 1;
for (; cutIndex >= 0; --cutIndex) {
char lastChar = url.charAt(cutIndex);
if (-1 != skip.indexOf(lastChar)) {
continue;
}
int delemiterIndex = delemiters.indexOf(lastChar);
if (-1 != delemiterIndex) {
if (-1 == url.indexOf(openDelemiters.charAt(delemiterIndex))) {
continue;
}
}
break;
}
if (cutIndex <= 0) {
return;
} else if (cutIndex != url.length() - 1) {
url = url.substring(0, cutIndex + 1);
}
if (-1 == url.indexOf(':')) {
boolean isPhone = ('+' == url.charAt(0));
boolean hasDot = false;
boolean nonDigit = false;
for (int i = isPhone ? 1 : 0; i < url.length(); ++i) {
char ch = url.charAt(i);
if ('.' == ch) {
hasDot = true;
} else if (!Character.isDigit(ch)) {
nonDigit = true;
break;
}
}
if (isPhone) {
if (!nonDigit && !hasDot && (7 <= url.length())) {
url = "tel:" + url;
} else {
return;
}
} else {
if (nonDigit) {
if (-1 == url.indexOf('/')) {
if (-1 == url.indexOf('@')) return;
// jid or email
} else {
url = "http:\57\57" + url;
}
} else {
return;
}
}
}
int protoEnd = url.indexOf(':');
if (-1 != protoEnd) {
if (url.length() <= protoEnd + 5) {
return;
}
for (int i = 0; i < protoEnd; ++i) {
if (!isURLChar(url.charAt(i), URL_CHAR_PROTOCOL)) {
return;
}
}
}
if (!urls.contains(url)) {
urls.addElement(url);
}
}