public String addParameter(String url, String name, String value) {
if (url == null) {
return null;
}
String[] urlArray = PortalUtil.stripURLAnchor(url, StringPool.POUND);
url = urlArray[0];
String anchor = urlArray[1];
StringBundler sb = new StringBundler(7);
sb.append(url);
if (url.indexOf(CharPool.QUESTION) == -1) {
sb.append(StringPool.QUESTION);
} else if (!url.endsWith(StringPool.QUESTION) && !url.endsWith(StringPool.AMPERSAND)) {
sb.append(StringPool.AMPERSAND);
}
sb.append(name);
sb.append(StringPool.EQUAL);
sb.append(encodeURL(value));
sb.append(anchor);
return sb.toString();
}
public String removeParameter(String url, String name) {
int pos = url.indexOf(CharPool.QUESTION);
if (pos == -1) {
return url;
}
String[] array = PortalUtil.stripURLAnchor(url, StringPool.POUND);
url = array[0];
String anchor = array[1];
StringBundler sb = new StringBundler();
sb.append(url.substring(0, pos + 1));
String[] parameters =
StringUtil.split(url.substring(pos + 1, url.length()), CharPool.AMPERSAND);
for (String parameter : parameters) {
if (parameter.length() > 0) {
String[] kvp = StringUtil.split(parameter, CharPool.EQUAL);
String key = kvp[0];
String value = StringPool.BLANK;
if (kvp.length > 1) {
value = kvp[1];
}
if (!key.equals(name)) {
sb.append(key);
sb.append(StringPool.EQUAL);
sb.append(value);
sb.append(StringPool.AMPERSAND);
}
}
}
url =
StringUtil.replace(
sb.toString(), StringPool.AMPERSAND + StringPool.AMPERSAND, StringPool.AMPERSAND);
if (url.endsWith(StringPool.AMPERSAND)) {
url = url.substring(0, url.length() - 1);
}
if (url.endsWith(StringPool.QUESTION)) {
url = url.substring(0, url.length() - 1);
}
return url + anchor;
}
