// non-javadoc, see interface HeaderValueFormatter
public CharArrayBuffer formatHeaderElement(
CharArrayBuffer buffer, final HeaderElement elem, final boolean quote) {
if (elem == null) {
throw new IllegalArgumentException("Header element must not be null.");
}
int len = estimateHeaderElementLen(elem);
if (buffer == null) {
buffer = new CharArrayBuffer(len);
} else {
buffer.ensureCapacity(len);
}
buffer.append(elem.getName());
final String value = elem.getValue();
if (value != null) {
buffer.append('=');
doFormatValue(buffer, value, quote);
}
final int parcnt = elem.getParameterCount();
if (parcnt > 0) {
for (int i = 0; i < parcnt; i++) {
buffer.append("; ");
formatNameValuePair(buffer, elem.getParameter(i), quote);
}
}
return buffer;
}
/**
* Estimates the length of a formatted header element.
*
* @param elem the header element to format, or <code>null</code>
* @return a length estimate, in number of characters
*/
protected int estimateHeaderElementLen(final HeaderElement elem) {
if (elem == null) return 0;
int result = elem.getName().length(); // name
final String value = elem.getValue();
if (value != null) {
// assume quotes, but no escaped characters
result += 3 + value.length(); // ="value"
}
final int parcnt = elem.getParameterCount();
if (parcnt > 0) {
for (int i = 0; i < parcnt; i++) {
result +=
2
+ // ; <param>
estimateNameValuePairLen(elem.getParameter(i));
}
}
return result;
}
private List<Cookie> createCookies(final HeaderElement[] elems, final CookieOrigin origin)
throws MalformedCookieException {
List<Cookie> cookies = new ArrayList<Cookie>(elems.length);
for (HeaderElement headerelement : elems) {
String name = headerelement.getName();
String value = headerelement.getValue();
if (name == null || name.length() == 0) {
throw new MalformedCookieException("Cookie name may not be empty");
}
BasicClientCookie2 cookie = new BasicClientCookie2(name, value);
cookie.setPath(getDefaultPath(origin));
cookie.setDomain(getDefaultDomain(origin));
cookie.setPorts(new int[] {origin.getPort()});
// cycle through the parameters
NameValuePair[] attribs = headerelement.getParameters();
// Eliminate duplicate attributes. The first occurrence takes precedence
// See RFC2965: 3.2 Origin Server Role
Map<String, NameValuePair> attribmap = new HashMap<String, NameValuePair>(attribs.length);
for (int j = attribs.length - 1; j >= 0; j--) {
NameValuePair param = attribs[j];
attribmap.put(param.getName().toLowerCase(Locale.ENGLISH), param);
}
for (Map.Entry<String, NameValuePair> entry : attribmap.entrySet()) {
NameValuePair attrib = entry.getValue();
String s = attrib.getName().toLowerCase(Locale.ENGLISH);
cookie.setAttribute(s, attrib.getValue());
CookieAttributeHandler handler = findAttribHandler(s);
if (handler != null) {
handler.parse(cookie, attrib.getValue());
}
}
cookies.add(cookie);
}
return cookies;
}