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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.ui.topo;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import static org.onosproject.ui.JsonUtils.envelope;
/**
* JSON utilities for the Topology View.
*/
public final class TopoJson {
// package-private for unit test access
static final String SHOW_HIGHLIGHTS = "showHighlights";
static final String DEVICES = "devices";
static final String HOSTS = "hosts";
static final String LINKS = "links";
static final String SUBDUE = "subdue";
static final String ID = "id";
static final String LABEL = "label";
static final String CSS = "css";
static final String BADGE = "badge";
static final String STATUS = "status";
static final String TXT = "txt";
static final String GID = "gid";
static final String MSG = "msg";
static final String TITLE = "title";
static final String TYPE = "type";
static final String PROP_ORDER = "propOrder";
static final String PROPS = "props";
static final String BUTTONS = "buttons";
private static final ObjectMapper MAPPER = new ObjectMapper();
private static ObjectNode objectNode() {
return MAPPER.createObjectNode();
}
private static ArrayNode arrayNode() {
return MAPPER.createArrayNode();
}
// non-instantiable
private TopoJson() { }
/**
* Returns a formatted message ready to send to the topology view
* to render highlights.
*
* @param highlights highlights model to transform
* @return fully formatted "show highlights" message
*/
public static ObjectNode highlightsMessage(Highlights highlights) {
return envelope(SHOW_HIGHLIGHTS, json(highlights));
}
/**
* Transforms the given highlights model into a JSON message payload.
*
* @param highlights the model to transform
* @return JSON payload
*/
public static ObjectNode json(Highlights highlights) {
ObjectNode payload = objectNode();
ArrayNode devices = arrayNode();
ArrayNode hosts = arrayNode();
ArrayNode links = arrayNode();
payload.set(DEVICES, devices);
payload.set(HOSTS, hosts);
payload.set(LINKS, links);
highlights.devices().forEach(dh -> devices.add(json(dh)));
highlights.hosts().forEach(hh -> hosts.add(json(hh)));
highlights.links().forEach(lh -> links.add(json(lh)));
Highlights.Amount toSubdue = highlights.subdueLevel();
if (!toSubdue.equals(Highlights.Amount.ZERO)) {
payload.put(SUBDUE, toSubdue.toString());
}
return payload;
}
private static ObjectNode json(NodeBadge b) {
ObjectNode n = objectNode()
.put(STATUS, b.status().code())
.put(b.isGlyph() ? GID : TXT, b.text());
if (b.message() != null) {
n.put(MSG, b.message());
}
return n;
}
private static ObjectNode json(DeviceHighlight dh) {
ObjectNode n = objectNode()
.put(ID, dh.elementId());
if (dh.subdued()) {
n.put(SUBDUE, true);
}
NodeBadge badge = dh.badge();
if (badge != null) {
n.set(BADGE, json(badge));
}
return n;
}
private static ObjectNode json(HostHighlight hh) {
ObjectNode n = objectNode()
.put(ID, hh.elementId());
if (hh.subdued()) {
n.put(SUBDUE, true);
}
return n;
}
private static ObjectNode json(LinkHighlight lh) {
ObjectNode n = objectNode()
.put(ID, lh.elementId())
.put(LABEL, lh.label())
.put(CSS, lh.cssClasses());
if (lh.subdued()) {
n.put(SUBDUE, true);
}
return n;
}
/**
* Translates the given property panel into JSON, for returning
* to the client.
*
* @param pp the property panel model
* @return JSON payload
*/
public static ObjectNode json(PropertyPanel pp) {
ObjectNode result = objectNode()
.put(TITLE, pp.title())
.put(TYPE, pp.typeId())
.put(ID, pp.id());
ObjectNode pnode = objectNode();
ArrayNode porder = arrayNode();
for (PropertyPanel.Prop p : pp.properties()) {
porder.add(p.key());
pnode.put(p.key(), p.value());
}
result.set(PROP_ORDER, porder);
result.set(PROPS, pnode);
ArrayNode buttons = arrayNode();
for (ButtonId b : pp.buttons()) {
buttons.add(b.id());
}
result.set(BUTTONS, buttons);
return result;
}
}
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