public static void main(String[] args) throws Exception { ClientResource resource = new ClientResource("http://localhost:8111/"); // Get a representation Representation rep = resource.get(); System.out.println(resource.getStatus()); // Get an updated representation, if modified resource.getConditions().setModifiedSince(rep.getModificationDate()); rep = resource.get(); System.out.println(resource.getStatus()); // Get an updated representation, if tag changed resource.getConditions().setModifiedSince(null); resource.getConditions().getNoneMatch().add(new Tag("xyz123")); rep = resource.get(); System.out.println(resource.getStatus()); // Put a new representation if tag has not changed resource.getConditions().getNoneMatch().clear(); resource.getConditions().getMatch().add(rep.getTag()); resource.put(rep); System.out.println(resource.getStatus()); // Put a new representation when a different tag resource.getConditions().getMatch().clear(); resource.getConditions().getMatch().add(new Tag("abcd7890")); resource.put(rep); System.out.println(resource.getStatus()); }