org.jclouds.googlecomputeengine.functions.internal.BaseWithRegionToPagedIterable Maven / Gradle / Ivy

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/*
 * 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.googlecomputeengine.functions.internal;

import static com.google.common.base.Predicates.instanceOf;
import static com.google.common.collect.Iterables.tryFind;

import org.jclouds.collect.IterableWithMarker;
import org.jclouds.collect.PagedIterable;
import org.jclouds.collect.PagedIterables;
import org.jclouds.googlecomputeengine.domain.ListPage;
import org.jclouds.googlecomputeengine.options.ListOptions;
import org.jclouds.http.HttpRequest;
import org.jclouds.rest.InvocationContext;
import org.jclouds.rest.internal.GeneratedHttpRequest;

import com.google.common.annotations.Beta;
import com.google.common.base.Function;
import com.google.common.base.Optional;

/**
 * @author Adrian Cole
 * @author Andrew Bayer
 */
@Beta
public abstract class BaseWithRegionToPagedIterable> implements
        Function, PagedIterable>, InvocationContext {

   private GeneratedHttpRequest request;

   @Override
   public PagedIterable apply(ListPage input) {
      if (input.nextMarker() == null)
         return PagedIterables.of(input);

      Optional