/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.brooklyn.rest.transform;
import java.net.URI;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.sensor.AttributeSensor;
import org.apache.brooklyn.api.sensor.Sensor;
import org.apache.brooklyn.core.config.render.RendererHints;
import org.apache.brooklyn.rest.domain.SensorSummary;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.apache.brooklyn.util.net.URLParamEncoder;
import org.apache.brooklyn.util.text.Strings;
import com.google.common.collect.Iterables;
public class SensorTransformer {
private static final Logger log = LoggerFactory.getLogger(SensorTransformer.class);
public static SensorSummary sensorSummaryForCatalog(Sensor<?> sensor) {
return new SensorSummary(sensor.getName(), sensor.getTypeName(),
sensor.getDescription(), null);
}
public static SensorSummary sensorSummary(Entity entity, Sensor<?> sensor) {
String applicationUri = "/v1/applications/" + entity.getApplicationId();
String entityUri = applicationUri + "/entities/" + entity.getId();
String selfUri = entityUri + "/sensors/" + URLParamEncoder.encode(sensor.getName());
MutableMap.Builder<String, URI> lb = MutableMap.<String, URI>builder()
.put("self", URI.create(selfUri))
.put("application", URI.create(applicationUri))
.put("entity", URI.create(entityUri))
.put("action:json", URI.create(selfUri));
if (sensor instanceof AttributeSensor) {
Iterable<RendererHints.NamedAction> hints = Iterables.filter(RendererHints.getHintsFor((AttributeSensor<?>)sensor), RendererHints.NamedAction.class);
for (RendererHints.NamedAction na : hints) addNamedAction(lb, na , entity, sensor);
}
return new SensorSummary(sensor.getName(), sensor.getTypeName(), sensor.getDescription(), lb.build());
}
private static <T> void addNamedAction(MutableMap.Builder<String, URI> lb, RendererHints.NamedAction na , Entity entity, Sensor<T> sensor) {
addNamedAction(lb, na, entity.getAttribute( ((AttributeSensor<T>) sensor) ), sensor, entity);
}
@SuppressWarnings("unchecked")
static <T> void addNamedAction(MutableMap.Builder<String, URI> lb, RendererHints.NamedAction na, T value, Object context, Entity contextEntity) {
if (na instanceof RendererHints.NamedActionWithUrl) {
try {
String v = ((RendererHints.NamedActionWithUrl<T>) na).getUrlFromValue(value);
if (Strings.isNonBlank(v)) {
String action = na.getActionName().toLowerCase();
lb.putIfAbsent("action:"+action, URI.create(v));
}
} catch (Exception e) {
Exceptions.propagateIfFatal(e);
log.warn("Unable to make action "+na+" from "+context+" on "+contextEntity+": "+e, e);
}
}
}
}