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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.onosproject.cord.gui.model;
import com.fasterxml.jackson.databind.node.ObjectNode;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Specialization of XosFunction for URL filtering.
*/
public class UrlFilterFunction extends DefaultXosFunction {
private static final String LEVEL = "level";
private static final String URI_PATTERN = "%s/%s/";
/**
* Denotes the URL filtering levels available. From most restrictive
* to least restrictive. Note: <em>NONE</em> allows nothing;
* <em>ALL</em> allows everything.
*/
public enum Level { NONE, G, PG, PG_13, R, ALL }
/**
* The default URL filtering level
*/
public static final Level DEFAULT_LEVEL = Level.G;
public UrlFilterFunction() {
super(XosFunctionDescriptor.URL_FILTER);
}
@Override
public void applyParam(SubscriberUser user, String param, String value) {
Memento memo = user.getMemento(descriptor());
checkNotNull(memo, "missing memento for " + descriptor());
UrlFilterMemento ufMemo = (UrlFilterMemento) memo;
if (LEVEL.equals(param)) {
Level newLevel = Level.valueOf(value.toUpperCase());
ufMemo.setLevel(newLevel);
// Also store the (string version) of the level
// (not in the memento). Hackish, but that's how it is for now.
user.setUrlFilterLevel(value);
}
}
@Override
public Memento createMemento() {
return new UrlFilterMemento();
}
class UrlFilterMemento implements Memento {
private Level level = DEFAULT_LEVEL;
public ObjectNode toObjectNode() {
ObjectNode node = MAPPER.createObjectNode();
node.put(LEVEL, level.name());
return node;
}
public void setLevel(Level level) {
this.level = level;
}
public String level() {
return level.toString();
}
}
@Override
public String xosUrlApply(SubscriberUser user) {
XosFunctionDescriptor xfd = XosFunctionDescriptor.URL_FILTER;
UrlFilterMemento memo = (UrlFilterMemento) user.getMemento(xfd);
return String.format(URI_PATTERN, xfd.id(), memo.level());
}
}
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