/**
* Add a header entry for the given name.
*
* <p>If there was no entry for that header name before, the value will be used as-is. In case of
* an existing entry, a String array will be created, adding the given value (more specifically,
* its toString representation) as further element.
*
* <p>Multiple values can only be stored as list of Strings, following the Servlet spec (see
* <code>getHeaders</code> accessor). As alternative to repeated <code>addHeader</code> calls for
* individual elements, you can use a single call with an entire array or Collection of values as
* parameter.
*
* @see #getHeaderNames
* @see #getHeader
* @see #getHeaders
* @see #getDateHeader
* @see #getIntHeader
*/
public void addHeader(String name, Object value) {
if (CONTENT_TYPE_HEADER.equalsIgnoreCase(name)) {
setContentType((String) value);
return;
}
doAddHeaderValue(name, value, false);
}
private void updateContentTypeHeader() {
if (this.contentType != null) {
StringBuilder sb = new StringBuilder(this.contentType);
if (this.contentType.toLowerCase().indexOf(CHARSET_PREFIX) == -1
&& this.characterEncoding != null) {
sb.append(";").append(CHARSET_PREFIX).append(this.characterEncoding);
}
doAddHeaderValue(CONTENT_TYPE_HEADER, sb.toString(), true);
}
}