/*
* 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.jclouds.rackspace.autoscale.v1.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import java.net.URI;
import java.util.List;
import java.util.Map;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.functions.ParseJson;
import org.jclouds.openstack.v2_0.domain.Link;
import org.jclouds.openstack.v2_0.domain.Link.Relation;
import org.jclouds.rackspace.autoscale.v1.domain.Group;
import org.jclouds.rackspace.autoscale.v1.domain.GroupConfiguration;
import org.jclouds.rackspace.autoscale.v1.domain.LaunchConfiguration;
import org.jclouds.rackspace.autoscale.v1.domain.LaunchConfiguration.LaunchConfigurationType;
import org.jclouds.rackspace.autoscale.v1.domain.LoadBalancer;
import org.jclouds.rackspace.autoscale.v1.domain.Personality;
import org.jclouds.rackspace.autoscale.v1.domain.ScalingPolicy.ScalingPolicyTargetType;
import org.jclouds.rackspace.autoscale.v1.domain.ScalingPolicy.ScalingPolicyType;
import org.jclouds.rackspace.autoscale.v1.domain.ScalingPolicyResponse;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.math.DoubleMath;
import com.google.inject.Inject;
/**
* This parses the group response and decouples domain objects from the json object returned by the service.
* @author Zack Shoylev
*/
public class ParseGroupResponse implements Function<HttpResponse, Group> {
private final ParseJson<Map<String, Object>> json;
@Inject
ParseGroupResponse(ParseJson<Map<String, Object>> json) {
this.json = checkNotNull(json, "json");
}
/**
* Parses the Group from the response
*/
@SuppressWarnings("unchecked")
public Group apply(HttpResponse from) {
// This needs to be refactored when the service is in a more final state and changing less often
// A lot of the complexity is expected to go away
Map<String, Object> result = json.apply(from);
Map<String, Object> group = (Map<String, Object>) result.get("group");
Map<String, Object> groupConfigurationMap = (Map<String, Object>) group.get("groupConfiguration");
Map<String, Object> launchConfigurationMap = (Map<String, Object>) group.get("launchConfiguration");
ImmutableList.Builder<ScalingPolicyResponse> scalingPoliciesList = ImmutableList.builder();
Map<String, Object> args = (Map<String, Object>) launchConfigurationMap.get("args");
Map<String, Object> server = (Map<String, Object>) args.get("server");
ImmutableList.Builder<Personality> personalities = ImmutableList.builder();
ImmutableList.Builder<String> networks = ImmutableList.builder();
for(Map<String,String> jsonPersonality : (List<Map<String,String>>) server.get("personality")) {
personalities.add(Personality.builder().path(jsonPersonality.get("path")).contents(jsonPersonality.get("contents")).build());
}
for(Map<String,String> jsonNetwork : (List<Map<String,String>>) server.get("networks")) {
networks.add(jsonNetwork.get("uuid"));
}
ImmutableList.Builder<LoadBalancer> loadBalancers = ImmutableList.builder();
for(Map<String,Double> jsonLoadBalancer : (List<Map<String,Double>>) args.get("loadBalancers")) {
loadBalancers.add(
LoadBalancer.builder().id( ((Double)jsonLoadBalancer.get("loadBalancerId")).intValue() ).port( ((Double)jsonLoadBalancer.get("port")).intValue() ).build()
);
}
LaunchConfiguration launchConfiguration = LaunchConfiguration.builder()
.loadBalancers(loadBalancers.build())
.serverName((String) server.get("name"))
.serverImageRef((String) server.get("imageRef"))
.serverFlavorRef((String) server.get("flavorRef"))
.serverDiskConfig((String) server.get("OS-DCF:diskConfig"))
.serverMetadata((Map<String, String>) server.get("metadata"))
.personalities(personalities.build())
.networks(networks.build())
.type(LaunchConfigurationType.getByValue((String) launchConfigurationMap.get("type")).get())
.build();
GroupConfiguration groupConfiguration = GroupConfiguration.builder()
.cooldown(((Double) groupConfigurationMap.get("cooldown")).intValue())
.minEntities(((Double) groupConfigurationMap.get("minEntities")).intValue())
.maxEntities(((Double) groupConfigurationMap.get("maxEntities")).intValue())
.name((String) groupConfigurationMap.get("name"))
.metadata((Map<String, String>) groupConfigurationMap.get("metadata"))
.build();
for(Map<String, Object> scalingPolicyMap : (List<Map<String, Object>>) group.get("scalingPolicies")) {
ScalingPolicyTargetType targetType = null;
for(String key : scalingPolicyMap.keySet()) {
if(ScalingPolicyTargetType.getByValue(key).isPresent()) {
targetType = ScalingPolicyTargetType.getByValue(key).get();
break;
}
}
ImmutableList.Builder<Link> links = ImmutableList.builder();
for(Map<String, String> linkMap : (List<Map<String, String>>) scalingPolicyMap.get("links")) {
Link link = Link.builder().href(URI.create(linkMap.get("href"))).relation(Relation.fromValue(linkMap.get("rel"))).build();
links.add(link);
}
Double d = (Double)scalingPolicyMap.get(targetType.toString()); // GSON only knows double now
ScalingPolicyResponse scalingPolicyResponse =
new ScalingPolicyResponse(
(String)scalingPolicyMap.get("name"),
ScalingPolicyType.getByValue((String)scalingPolicyMap.get("type")).get(),
((Double)scalingPolicyMap.get("cooldown")).intValue(),
DoubleMath.isMathematicalInteger(d) ? Integer.toString(d.intValue()) : Double.toString(d),
targetType,
ImmutableList.copyOf(links.build()),
(String) scalingPolicyMap.get("id")
);
scalingPoliciesList.add(scalingPolicyResponse);
}
ImmutableList.Builder<Link> links = ImmutableList.builder();
for(Map<String, String> linkMap : (List<Map<String, String>>) group.get("links")) {
Link link = Link.builder().href(URI.create(linkMap.get("href"))).relation(Relation.fromValue(linkMap.get("rel"))).build();
links.add(link);
}
String groupId = (String) group.get("id");
return Group.builder()
.id(groupId)
.scalingPolicy(scalingPoliciesList.build())
.groupConfiguration(groupConfiguration)
.launchConfiguration(launchConfiguration)
.links(links.build())
.build();
}
}