| /* |
| * 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.openstack.glance.v1_0.functions.internal; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.collect.Iterables.getOnlyElement; |
| import static org.jclouds.openstack.glance.v1_0.options.ListImageOptions.Builder.marker; |
| |
| import java.beans.ConstructorProperties; |
| import java.util.Collection; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.collect.IterableWithMarker; |
| import org.jclouds.collect.IterableWithMarkers; |
| import org.jclouds.collect.internal.Arg0ToPagedIterable; |
| import org.jclouds.http.functions.ParseJson; |
| import org.jclouds.json.Json; |
| import org.jclouds.openstack.glance.v1_0.GlanceApi; |
| import org.jclouds.openstack.glance.v1_0.domain.Image; |
| import org.jclouds.openstack.glance.v1_0.features.ImageApi; |
| import org.jclouds.openstack.glance.v1_0.functions.internal.ParseImages.Images; |
| import org.jclouds.openstack.v2_0.domain.PaginatedCollection; |
| import org.jclouds.openstack.v2_0.domain.Link; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.base.Function; |
| import com.google.common.base.Optional; |
| import com.google.inject.TypeLiteral; |
| import org.jclouds.openstack.v2_0.options.PaginationOptions; |
| |
| /** |
| * boiler plate until we determine a better way |
| */ |
| @Beta |
| @Singleton |
| public class ParseImages extends ParseJson<Images> { |
| static class Images extends PaginatedCollection<Image> { |
| |
| @ConstructorProperties({ "images", "images_links" }) |
| protected Images(Iterable<Image> images, Iterable<Link> images_links) { |
| super(images, images_links); |
| } |
| |
| } |
| |
| @Inject |
| public ParseImages(Json json) { |
| super(json, TypeLiteral.get(Images.class)); |
| } |
| |
| public static class ToPagedIterable extends Arg0ToPagedIterable.FromCaller<Image, ToPagedIterable> { |
| |
| private final GlanceApi api; |
| |
| @Inject |
| protected ToPagedIterable(GlanceApi api) { |
| this.api = checkNotNull(api, "api"); |
| } |
| |
| @Override |
| protected Function<Object, IterableWithMarker<Image>> markerToNextForArg0(Optional<Object> arg0) { |
| String zone = arg0.isPresent() ? arg0.get().toString() : null; |
| final ImageApi imageApi = api.getImageApiForZone(zone); |
| return new Function<Object, IterableWithMarker<Image>>() { |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public IterableWithMarker<Image> apply(Object input) { |
| PaginationOptions paginationOptions = PaginationOptions.class.cast(input); |
| Collection<String> markers = paginationOptions.buildQueryParameters().get("marker"); |
| |
| if (!markers.isEmpty()) { |
| return IterableWithMarker.class.cast(imageApi.listInDetail(marker(getOnlyElement(markers)))); |
| } |
| else { |
| return IterableWithMarkers.EMPTY; |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "list()"; |
| } |
| }; |
| } |
| |
| } |
| |
| } |