/*
* 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.internal;
import java.util.List;
import java.util.Map;
import org.jclouds.rackspace.autoscale.v1.domain.LaunchConfiguration;
import org.jclouds.rackspace.autoscale.v1.domain.ScalingPolicy;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Maps;
import com.google.common.primitives.Floats;
import com.google.common.primitives.Ints;
/**
* @author Zack Shoylev
*
* Helper methods for parsing autoscale JSON
*/
public class ParseHelper {
public static ImmutableMap<String, Object> buildLaunchConfigurationRequestMap(Map<String, Object> postParams) {
LaunchConfiguration launchConfigurationRequest = (LaunchConfiguration) postParams.get("launchConfiguration");
ImmutableMap.Builder<String, Object> launchConfigurationMapBuilder = ImmutableMap.builder();
ImmutableMap.Builder<String, Object> argsBuilder = ImmutableMap.builder();
ImmutableMap.Builder<String, Object> serverBuilder = ImmutableMap.builder();
ImmutableList.Builder<Map<String, String>> networksBuilder = ImmutableList.builder();
for (String networkId : launchConfigurationRequest.getNetworks()) {
Map<String, String> network = Maps.newHashMap();
network.put("uuid", networkId);
networksBuilder.add(network);
}
serverBuilder.put("name", launchConfigurationRequest.getServerName());
serverBuilder.put("imageRef", launchConfigurationRequest.getServerImageRef());
serverBuilder.put("flavorRef", launchConfigurationRequest.getServerFlavorRef());
serverBuilder.put("OS-DCF:diskConfig", launchConfigurationRequest.getServerDiskConfig());
serverBuilder.put("metadata", launchConfigurationRequest.getServerMetadata());
serverBuilder.put("personality", launchConfigurationRequest.getPersonalities());
serverBuilder.put("networks", networksBuilder.build());
argsBuilder.put("loadBalancers", launchConfigurationRequest.getLoadBalancers());
argsBuilder.put("server", serverBuilder.build());
launchConfigurationMapBuilder.put("type", launchConfigurationRequest.getType().toString());
launchConfigurationMapBuilder.put("args", argsBuilder.build());
return launchConfigurationMapBuilder.build();
}
@SuppressWarnings("unchecked")
public static ImmutableList<Map<String, Object>> buildScalingPoliciesRequestList(Map<String, Object> postParams) {
List<ScalingPolicy> scalingPoliciesRequest = (List<ScalingPolicy>) postParams.get("scalingPolicies");
ImmutableList.Builder<Map<String, Object>> scalingPoliciesListBuilder = ImmutableList.builder();
for (ScalingPolicy scalingPolicy : scalingPoliciesRequest) {
scalingPoliciesListBuilder.add(buildScalingPolicyMap(scalingPolicy));
}
return scalingPoliciesListBuilder.build();
}
public static ImmutableMap<String, Object> buildScalingPolicyMap(ScalingPolicy scalingPolicy) {
ImmutableMap.Builder<String, Object> scalingPolicyMapBuilder = ImmutableMap.builder();
scalingPolicyMapBuilder.put("cooldown", scalingPolicy.getCooldown());
scalingPolicyMapBuilder.put("type", scalingPolicy.getType().toString());
scalingPolicyMapBuilder.put("name", scalingPolicy.getName());
// A couple of different scaling policies are supported, such as percent or number based, or targeting specific numbers of instances
String targetString = scalingPolicy.getTarget();
Integer targetInt = Ints.tryParse(targetString);
// Notes:
// 1. Refactor when autoscale is complete and service is released to dry this code.
// 2. Refactor to use simpler code for the number parsing. Polymorphism or a facade might work.
// 3. Potentially remove or rework the enum code.
Float targetFloat;
if (targetInt != null) {
scalingPolicyMapBuilder.put(scalingPolicy.getTargetType().toString(), targetInt);
} else if ((targetFloat = Floats.tryParse(targetString)) != null) {
scalingPolicyMapBuilder.put(scalingPolicy.getTargetType().toString(), targetFloat);
} else {
scalingPolicyMapBuilder.put(scalingPolicy.getTargetType().toString(), targetString);
}
return scalingPolicyMapBuilder.build();
}
}