| 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | * contributor license agreements. See the NOTICE file distributed with |
| 4 | * this work for additional information regarding copyright ownership. |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | * (the "License"); you may not use this file except in compliance with |
| 7 | * the License. You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | package org.jclouds.glesys.functions; |
| 18 | |
| 19 | import static com.google.common.base.Preconditions.checkNotNull; |
| 20 | |
| 21 | import java.util.Map; |
| 22 | import java.util.Set; |
| 23 | |
| 24 | import javax.inject.Singleton; |
| 25 | |
| 26 | import org.jclouds.glesys.domain.OSTemplate; |
| 27 | import org.jclouds.http.HttpResponse; |
| 28 | import org.jclouds.http.functions.ParseFirstJsonValueNamed; |
| 29 | import org.jclouds.json.internal.GsonWrapper; |
| 30 | |
| 31 | import com.google.common.base.Function; |
| 32 | import com.google.common.collect.FluentIterable; |
| 33 | import com.google.common.collect.Iterables; |
| 34 | import com.google.inject.Inject; |
| 35 | import com.google.inject.TypeLiteral; |
| 36 | |
| 37 | /** |
| 38 | * @author Adrian Cole |
| 39 | */ |
| 40 | @Singleton |
| 41 | public class ParseTemplatesFromHttpResponse implements Function<HttpResponse, FluentIterable<OSTemplate>> { |
| 42 | private final ParseFirstJsonValueNamed<Map<String, Set<OSTemplate>>> parser; |
| 43 | |
| 44 | @Inject |
| 45 | public ParseTemplatesFromHttpResponse(GsonWrapper gsonView) { |
| 46 | this.parser = new ParseFirstJsonValueNamed<Map<String, Set<OSTemplate>>>(checkNotNull(gsonView, |
| 47 | "gsonView"), new TypeLiteral<Map<String, Set<OSTemplate>>>() { |
| 48 | }, "templates"); |
| 49 | } |
| 50 | |
| 51 | public FluentIterable<OSTemplate> apply(HttpResponse response) { |
| 52 | checkNotNull(response, "response"); |
| 53 | Map<String, Set<OSTemplate>> toParse = parser.apply(response); |
| 54 | checkNotNull(toParse, "parsed result from %s", response); |
| 55 | return FluentIterable.from(Iterables.concat(toParse.values())); |
| 56 | } |
| 57 | } |