/providers/aws-ec2/src/test/java/org/jclouds/aws/ec2/compute/functions/AWSRunningInstanceToNodeMetadataTest.java

/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.aws.ec2.compute.functions;

import static org.testng.Assert.assertEquals;

import java.util.Map;
import java.util.Set;

import org.jclouds.aws.ec2.domain.AWSRunningInstance;
import org.jclouds.aws.ec2.domain.MonitoringState;
import org.jclouds.compute.domain.Hardware;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.NodeMetadataBuilder;
import org.jclouds.compute.domain.NodeState;
import org.jclouds.date.DateService;
import org.jclouds.domain.Credentials;
import org.jclouds.domain.Location;
import org.jclouds.domain.LocationBuilder;
import org.jclouds.domain.LocationScope;
import org.jclouds.ec2.compute.config.EC2ComputeServiceDependenciesModule;
import org.jclouds.ec2.compute.domain.RegionAndName;
import org.jclouds.ec2.domain.Attachment;
import org.jclouds.ec2.domain.BlockDevice;
import org.jclouds.ec2.domain.InstanceState;
import org.jclouds.ec2.domain.RootDeviceType;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import com.google.common.base.Function;
import com.google.common.base.Supplier;
import com.google.common.base.Suppliers;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Maps;
import com.google.inject.Guice;

/**
 * @author Adrian Cole
 */
@Test(groups = "unit")
public class AWSRunningInstanceToNodeMetadataTest {

   private static final String defaultRegion = "us-east-1";
   static Location provider = new LocationBuilder().scope(LocationScope.REGION).id(defaultRegion).description(
            defaultRegion).build();

   private DateService dateService;

   @BeforeTest
   protected void setUpInjector() {
      dateService = Guice.createInjector().getInstance(DateService.class);
      assert dateService != null;
   }

   @Test
   public void test2Nodes() {

      AWSRunningInstanceToNodeMetadata parser = createNodeParser(ImmutableSet.<Hardware> of(), ImmutableSet
               .<Location> of(), ImmutableSet.<Image> of(), ImmutableMap.<String, Credentials> of());

      ImmutableSet<AWSRunningInstance> contents = ImmutableSet.of(new AWSRunningInstance.Builder()
               .region(defaultRegion).instanceId("i-911444f0").imageId("ami-63be790a").instanceState(
                        InstanceState.RUNNING).privateDnsName("ip-10-212-81-7.ec2.internal").dnsName(
                        "ec2-174-129-173-155.compute-1.amazonaws.com").keyName("jclouds#zkclustertest#us-east-1#23")
               .amiLaunchIndex("0").instanceType("t1.micro").launchTime(
                        dateService.iso8601DateParse("2011-08-16T13:40:50.000Z")).availabilityZone("us-east-1c")
               .kernelId("aki-427d952b").monitoringState(MonitoringState.DISABLED).privateIpAddress("10.212.81.7")
               .ipAddress("174.129.173.155").securityGroupIdToNames(
                        ImmutableMap.<String, String> of("sg-ef052b86", "jclouds#zkclustertest#us-east-1"))
               .rootDeviceType(RootDeviceType.EBS).rootDeviceName("/dev/sda1").device(
                        "/dev/sda1",
                        new BlockDevice("vol-5829fc32", Attachment.Status.ATTACHED, dateService
                                 .iso8601DateParse("2011-08-16T13:41:19.000Z"), true))
               .virtualizationType("paravirtual").build(),//
               new AWSRunningInstance.Builder().region(defaultRegion).instanceId("i-931444f2").imageId("ami-63be790a")
                        .instanceState(InstanceState.RUNNING).privateDnsName("ip-10-212-185-8.ec2.internal").dnsName(
                                 "ec2-50-19-207-248.compute-1.amazonaws.com").keyName(
                                 "jclouds#zkclustertest#us-east-1#23").amiLaunchIndex("0").instanceType("t1.micro")
                        .launchTime(dateService.iso8601DateParse("2011-08-16T13:40:50.000Z")).availabilityZone(
                                 "us-east-1c").kernelId("aki-427d952b").monitoringState(MonitoringState.DISABLED)
                        .privateIpAddress("10.212.185.8").ipAddress("50.19.207.248").securityGroupIdToNames(
                                 ImmutableMap.<String, String> of("sg-ef052b86", "jclouds#zkclustertest#us-east-1"))
                        .rootDeviceType(RootDeviceType.EBS).rootDeviceName("/dev/sda1").device(
                                 "/dev/sda1",
                                 new BlockDevice("vol-5029fc3a", Attachment.Status.ATTACHED, dateService
                                          .iso8601DateParse("2011-08-16T13:41:19.000Z"), true)).virtualizationType(
                                 "paravirtual").build());

      assertEquals(parser.apply(Iterables.get(contents, 0)), new NodeMetadataBuilder().state(NodeState.RUNNING).group(
               "zkclustertest").hostname("ip-10-212-81-7").privateAddresses(ImmutableSet.of("10.212.81.7"))
               .publicAddresses(ImmutableSet.of("174.129.173.155")).imageId("us-east-1/ami-63be790a").id(
                        "us-east-1/i-911444f0").providerId("i-911444f0").build());
      assertEquals(parser.apply(Iterables.get(contents, 1)), new NodeMetadataBuilder().state(NodeState.RUNNING).group(
               "zkclustertest").hostname("ip-10-212-185-8").privateAddresses(ImmutableSet.of("10.212.185.8"))
               .publicAddresses(ImmutableSet.of("50.19.207.248")).imageId("us-east-1/ami-63be790a").id(
                        "us-east-1/i-931444f2").providerId("i-931444f2").build());
   }

   protected AWSRunningInstanceToNodeMetadata createNodeParser(final ImmutableSet<Hardware> hardware,
            final ImmutableSet<Location> locations, Set<org.jclouds.compute.domain.Image> images,
            Map<String, Credentials> credentialStore) {
      Map<InstanceState, NodeState> instanceToNodeState = EC2ComputeServiceDependenciesModule.instanceToNodeState;

      final ImmutableMap<RegionAndName, Image> backing = Maps.uniqueIndex(images, new Function<Image, RegionAndName>() {

         @Override
         public RegionAndName apply(Image from) {
            return new RegionAndName(from.getLocation().getId(), from.getProviderId());
         }

      });
      
      Cache<RegionAndName, Image> instanceToImage = CacheBuilder.newBuilder().build(new CacheLoader<RegionAndName, Image> (){
    
         @Override
         public Image load(RegionAndName key) throws Exception {
            return backing.get(key);
         }
         
      });
            
          
      return createNodeParser(hardware, locations, credentialStore, instanceToNodeState, instanceToImage);
   }

   private AWSRunningInstanceToNodeMetadata createNodeParser(final ImmutableSet<Hardware> hardware,
            final ImmutableSet<Location> locations, Map<String, Credentials> credentialStore,
            Map<InstanceState, NodeState> instanceToNodeState, Cache<RegionAndName, ? extends Image> instanceToImage) {
      Supplier<Set<? extends Location>> locationSupplier = new Supplier<Set<? extends Location>>() {

         @Override
         public Set<? extends Location> get() {
            return locations;
         }

      };
      Supplier<Set<? extends Hardware>> hardwareSupplier = new Supplier<Set<? extends Hardware>>() {

         @Override
         public Set<? extends Hardware> get() {
            return hardware;
         }

      };
      AWSRunningInstanceToNodeMetadata parser = new AWSRunningInstanceToNodeMetadata(instanceToNodeState,
            credentialStore, Suppliers.<Cache<RegionAndName, ? extends Image>> ofInstance(instanceToImage),
            locationSupplier, hardwareSupplier);
      return parser;
   }

}