| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.ec2.binders; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkArgument; |
| 22 | import static com.google.common.base.Preconditions.checkNotNull; |
| 23 | import static java.lang.String.format; |
| 24 | |
| 25 | import java.util.Map; |
| 26 | import java.util.Map.Entry; |
| 27 | |
| 28 | import org.jclouds.ec2.domain.BlockDevice; |
| 29 | import org.jclouds.http.HttpRequest; |
| 30 | import org.jclouds.http.utils.ModifyRequest; |
| 31 | import org.jclouds.rest.Binder; |
| 32 | |
| 33 | import com.google.common.collect.ImmutableMap; |
| 34 | import com.google.common.collect.Multimap; |
| 35 | import com.google.common.collect.Multimaps; |
| 36 | |
| 37 | /** |
| 38 | * @author Oleksiy Yarmula |
| 39 | * @author Adrian Cole |
| 40 | */ |
| 41 | public class BindBlockDeviceMappingToIndexedFormParams implements Binder { |
| 42 | |
| 43 | private static final String deviceNamePattern = "BlockDeviceMapping.%d.DeviceName"; |
| 44 | private static final String volumeIdPattern = "BlockDeviceMapping.%d.Ebs.VolumeId"; |
| 45 | private static final String deleteOnTerminationPattern = "BlockDeviceMapping.%d.Ebs.DeleteOnTermination"; |
| 46 | |
| 47 | @SuppressWarnings("unchecked") |
| 48 | @Override |
| 49 | public <R extends HttpRequest> R bindToRequest(R request, Object input) { |
| 50 | checkArgument(checkNotNull(input, "input") instanceof Map, "this binder is only valid for Map"); |
| 51 | Map<String, BlockDevice> blockDeviceMapping = (Map<String, BlockDevice>) input; |
| 52 | |
| 53 | ImmutableMap.Builder<String, String> builder = ImmutableMap.builder(); |
| 54 | int amazonOneBasedIndex = 1; // according to docs, counters must start with 1 |
| 55 | for (Entry<String, BlockDevice> ebsBlockDeviceName : blockDeviceMapping.entrySet()) { |
| 56 | // not null by contract |
| 57 | builder.put(format(volumeIdPattern, amazonOneBasedIndex), ebsBlockDeviceName.getValue().getVolumeId()); |
| 58 | builder.put(format(deviceNamePattern, amazonOneBasedIndex), ebsBlockDeviceName.getKey()); |
| 59 | builder.put(format(deleteOnTerminationPattern, amazonOneBasedIndex), |
| 60 | String.valueOf(ebsBlockDeviceName.getValue().isDeleteOnTermination())); |
| 61 | |
| 62 | amazonOneBasedIndex++; |
| 63 | } |
| 64 | Multimap<String, String> forms = Multimaps.forMap(builder.build()); |
| 65 | return forms.size() == 0 ? request : ModifyRequest.putFormParams(request, forms); |
| 66 | } |
| 67 | |
| 68 | } |