@Override
public void populateDisplayData(DisplayData.Builder builder) {
super.populateDisplayData(builder);
builder
.addIfNotDefault(
DisplayData.item("host", host).withLabel("Datastore Service"), DEFAULT_HOST)
.addIfNotNull(DisplayData.item("dataset", datasetId).withLabel("Output Dataset"));
}
@Override
public void populateDisplayData(DisplayData.Builder builder) {
super.populateDisplayData(builder);
builder
.addIfNotNull(
DisplayData.item("filePattern", filepattern).withLabel("Input File Pattern"))
.addIfNotDefault(
DisplayData.item("validation", validate).withLabel("Validation Enabled"), true);
}
@Override
public void populateDisplayData(DisplayData.Builder builder) {
super.populateDisplayData(builder);
builder
.addIfNotDefault(
DisplayData.item("host", host).withLabel("Datastore Service"), DEFAULT_HOST)
.addIfNotNull(DisplayData.item("dataset", datasetId).withLabel("Input Dataset"))
.addIfNotNull(DisplayData.item("namespace", namespace).withLabel("App Engine Namespace"));
if (query != null) {
builder.add(DisplayData.item("query", query.toString()).withLabel("Query"));
}
}
/**
* Populate display data for the {@code combineFns} that make up a composed combine transform.
*
* <p>The same combineFn class may be used multiple times, in which case we must take special care
* to register display data with unique namespaces.
*/
private static void populateDisplayData(
DisplayData.Builder builder, List<? extends HasDisplayData> combineFns) {
// NB: ArrayListMultimap necessary to maintain ordering of combineFns of the same type.
Multimap<Class<?>, HasDisplayData> combineFnMap = ArrayListMultimap.create();
for (int i = 0; i < combineFns.size(); i++) {
HasDisplayData combineFn = combineFns.get(i);
builder.add(
DisplayData.item("combineFn" + (i + 1), combineFn.getClass())
.withLabel("Combine Function"));
combineFnMap.put(combineFn.getClass(), combineFn);
}
for (Map.Entry<Class<?>, Collection<HasDisplayData>> combineFnEntries :
combineFnMap.asMap().entrySet()) {
Collection<HasDisplayData> classCombineFns = combineFnEntries.getValue();
if (classCombineFns.size() == 1) {
// Only one combineFn of this type, include it directly.
builder.include(Iterables.getOnlyElement(classCombineFns));
} else {
// Multiple combineFns of same type, add a namespace suffix so display data is
// unique and ordered.
String baseNamespace = combineFnEntries.getKey().getName();
for (int i = 0; i < combineFns.size(); i++) {
HasDisplayData combineFn = combineFns.get(i);
String namespace = String.format("%s#%d", baseNamespace, i + 1);
builder.include(combineFn, namespace);
}
}
}
}
@Test
public void testDisplayData() {
Top.Largest<Integer> comparer = new Top.Largest<Integer>();
Combine.Globally<Integer, List<Integer>> top = Top.of(1234, comparer);
DisplayData displayData = DisplayData.from(top);
assertThat(displayData, hasDisplayItem("count", 1234));
assertThat(displayData, hasDisplayItem("comparer", comparer.getClass()));
}
@Override
public void populateDisplayData(DisplayData.Builder builder) {
super.populateDisplayData(builder);
builder
.add(DisplayData.item("schema", type).withLabel("Record Schema"))
.addIfNotNull(
DisplayData.item("filePrefix", filenamePrefix).withLabel("Output File Prefix"))
.addIfNotDefault(
DisplayData.item("shardNameTemplate", shardTemplate)
.withLabel("Output Shard Name Template"),
DEFAULT_SHARD_TEMPLATE)
.addIfNotDefault(
DisplayData.item("fileSuffix", filenameSuffix).withLabel("Output File Suffix"), "")
.addIfNotDefault(
DisplayData.item("numShards", numShards).withLabel("Maximum Output Shards"), 0)
.addIfNotDefault(
DisplayData.item("validation", validate).withLabel("Validation Enabled"), true);
}