/**
* Linkのアンマーシャラー
*
* @param str このオブジェクトの文字列表現
* @return Linkオブジェクト
*/
public static Link valueOf(String str) {
Matcher matcher = parse.matcher(str);
if (!matcher.matches()) throw new RuntimeException("Failed to parse link : " + str);
Link link = new Link();
link.href = matcher.group(1);
String[] props = matcher.group(2).split(";");
for (String prop : props) {
String[] keyVal = prop.split("=");
String key = keyVal[0];
String val = keyVal[1];
switch (key) {
case "rel":
link.relationship = val;
break;
case "type":
link.type = val;
break;
default:
break;
}
}
return link;
}
@XmlTransient
public String getPrevious() {
if (links == null) return null;
for (Link link : links) {
if ("previous".equals(link.getRelationship())) return link.getHref();
}
return null;
}