How to use

IterableWithMarker

in

org.jclouds.collect

@Override
protected IterableWithMarker<T> computeNext() {
  if (unread)
   try {
     return current;
   } finally {
     unread = false;
   }
  else if (current.nextMarker().isPresent())
   return current = markerToNext.apply(current.nextMarker().get());
  else
   return endOfData();
}

  @Override
  public Iterator<E> next() {
   return iterator.next().iterator();
  }
};

  @Test
  public void testMarkerEqual() {

   IterableWithMarker<String> initial = IterableWithMarkers.from(ImmutableSet.of("foo", "bar"), "MARKER");
   Assert.assertEquals(initial.toSet(), ImmutableSet.of("foo", "bar"));
   Assert.assertEquals(initial.nextMarker(), Optional.of("MARKER"));
  }
}

/**
* Tests parsing all possible XML elements that could be encountered by {@link ListAlarmHistoryResponseHandler}.
*
* @throws Exception if something goes wrong
*/
public void testParseFullResponse() throws Exception {
 IterableWithMarker<AlarmHistoryItem> alarmHistoryItems =
    factory.create(injector.getInstance(ListAlarmHistoryResponseHandler.class))
        .parse(getClass().getResourceAsStream("/DescribeAlarmHistoryResponse.xml"));
 assertEquals(alarmHistoryItems.toString(), expected().toString());
 assertFalse(alarmHistoryItems.nextMarker().isPresent());
}

  Metric metric = response.iterator().next();
response = api().list(ListMetricsOptions.Builder.afterMarker(response.nextMarker().orNull()));

public void test() {
 InputStream is = getClass().getResourceAsStream("/hosted_zones.xml");
 IterableWithMarker<HostedZone> expected = expected();
 ListHostedZonesResponseHandler handler = injector.getInstance(ListHostedZonesResponseHandler.class);
 IterableWithMarker<HostedZone> result = factory.create(handler).parse(is);
 assertEquals(result.toString(), expected.toString());
}

@Test(expectedExceptions = ResourceNotFoundException.class)
public void testListWhenResponseIs404() {
 Route53Api fail = requestSendsResponse(list, notFound);
 assertEquals(fail.getResourceRecordSetApiForHostedZone("Z1PA6795UKMFR9").list().get(0).toSet(), ImmutableSet.of());
}

public void testListRegionsOnePage() {
 final AtomicInteger found = new AtomicInteger(0);
 assertTrue(api().list(page(1)).allMatch(new Predicate<Region>() {
   @Override
   public boolean apply(Region input) {
    found.incrementAndGet();
    return !Strings.isNullOrEmpty(input.slug());
   }
 }), "All regions must have the 'slug' field populated");
 assertTrue(found.get() > 0, "Expected some regions to be returned");
}

private PagedIterable<HostedZone> zones() {
 PagedIterable<HostedZone> zones = api.getHostedZoneApi().list();
 if (zones.get(0).isEmpty())
   throw new SkipException("no zones in context: " + identity);
 return zones;
}

/**
* Tests {@link S3#listBucket(S3Client, String, ListBucketOptions)} where a
* single response returns all results.
*
* @throws Exception
*            if anything goes wrong
*/
@Test
public void testSinglePageResult() throws Exception {
 S3Client api = createMock(S3Client.class);
 ListBucketOptions options = new ListBucketOptions();
 ListBucketResponse response = new ListBucketHandlerTest().expected();
 expect(api.listBucket("bucket", options)).andReturn(response).once();
 EasyMock.replay(api);
 PagedIterable<ObjectMetadata> result = S3.listBucket(api, "bucket", options);
 // number of pages
 assertEquals(result.size(), 1);
 // number of objects
 assertEquals(result.get(0).size(), 10);
}

/**
* Tests parsing all possible XML elements that could be encountered by {@link ListAlarmsResponseHandler}.
*
* @throws Exception if something goes wrong
*/
public void testParseFullResponse() throws Exception {
 IterableWithMarker<Alarm> metricAlarms =
    factory.create(injector.getInstance(ListAlarmsResponseHandler.class))
        .parse(getClass().getResourceAsStream("/DescribeAlarmsResponse.xml"));
 assertEquals(metricAlarms.toString(), expected().toString());
 assertFalse(metricAlarms.nextMarker().isPresent());
}

  Metric metric = response.iterator().next();
response = api().list(ListMetricsOptions.Builder.afterMarker(response.nextMarker().orNull()));

public void test() {
 InputStream is = getClass().getResourceAsStream("/hosted_zones.xml");
 IterableWithMarker<HostedZone> expected = expected();
 ListHostedZonesResponseHandler handler = injector.getInstance(ListHostedZonesResponseHandler.class);
 IterableWithMarker<HostedZone> result = factory.create(handler).parse(is);
 assertEquals(result.toString(), expected.toString());
}

@Test(expectedExceptions = ResourceNotFoundException.class)
public void testListWhenResponseIs404() {
 Route53Api fail = requestSendsResponse(list, notFound);
 assertEquals(fail.getHostedZoneApi().list().get(0).toSet(), ImmutableSet.of());
}

public void testListSizesOnePage() {
 final AtomicInteger found = new AtomicInteger(0);
 assertTrue(api().list(page(1)).allMatch(new Predicate<Size>() {
   @Override
   public boolean apply(Size input) {
    found.incrementAndGet();
    return !Strings.isNullOrEmpty(input.slug());
   }
 }), "All sizes must have the 'slug' field populated");
 assertTrue(found.get() > 0, "Expected some sizes to be returned");
}

private PagedIterable<HostedZone> zones() {
 PagedIterable<HostedZone> zones = api.getHostedZoneApi().list();
 if (zones.get(0).isEmpty())
   throw new SkipException("no zones in context: " + identity);
 return zones;
}

/**
* Tests {@link S3#listBucket(S3Client, String, ListBucketOptions)} where a
* single response returns all results.
*
* @throws Exception
*            if anything goes wrong
*/
@Test
public void testSinglePageResult() throws Exception {
 S3Client api = createMock(S3Client.class);
 ListBucketOptions options = new ListBucketOptions();
 ListBucketResponse response = new ListBucketHandlerTest().expected();
 expect(api.listBucket("bucket", options)).andReturn(response).once();
 EasyMock.replay(api);
 PagedIterable<ObjectMetadata> result = S3.listBucket(api, "bucket", options);
 // number of pages
 assertEquals(result.size(), 1);
 // number of objects
 assertEquals(result.get(0).size(), 10);
}

@Override
protected IterableWithMarker<T> computeNext() {
  if (unread)
   try {
     return current;
   } finally {
     unread = false;
   }
  else if (current.nextMarker().isPresent())
   return current = markerToNext.apply(current.nextMarker().get());
  else
   return endOfData();
}

@Test
public void testElementsEqual() {
 IterableWithMarker<String> initial = IterableWithMarkers.from(ImmutableSet.of("foo", "bar"));
 Assert.assertEquals(initial.toSet(), ImmutableSet.of("foo", "bar"));
 Assert.assertEquals(initial.nextMarker(), Optional.absent());
}

  @Override
  public Iterator<E> next() {
   return iterator.next().iterator();
  }
};