本文整理汇总了Java中org.apache.kafka.streams.kstream.KTable.foreach方法的典型用法代码示例。如果您正苦于以下问题：Java KTable.foreach方法的具体用法？Java KTable.foreach怎么用？Java KTable.foreach使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.kafka.streams.kstream.KTable的用法示例。
在下文中一共展示了KTable.foreach方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: shouldCountSessionWindowsWithInternalStoreName
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
@Test
public void shouldCountSessionWindowsWithInternalStoreName() throws Exception {
final Map<Windowed<String>, Long> results = new HashMap<>();
KTable table = groupedStream.count(SessionWindows.with(30));
table.foreach(new ForeachAction<Windowed<String>, Long>() {
@Override
public void apply(final Windowed<String> key, final Long value) {
results.put(key, value);
}
});
doCountSessionWindows(results);
assertNull(table.queryableStoreName());
}
示例2: shouldReduceSessionWindows
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
@Test
public void shouldReduceSessionWindows() throws Exception {
final Map<Windowed<String>, String> results = new HashMap<>();
KTable table = groupedStream.reduce(
new Reducer<String>() {
@Override
public String apply(final String value1, final String value2) {
return value1 + ":" + value2;
}
}, SessionWindows.with(30),
"session-store");
table.foreach(new ForeachAction<Windowed<String>, String>() {
@Override
public void apply(final Windowed<String> key, final String value) {
results.put(key, value);
}
});
doReduceSessionWindows(results);
assertEquals(table.queryableStoreName(), "session-store");
}
示例3: shouldReduceSessionWindowsWithInternalStoreName
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
@Test
public void shouldReduceSessionWindowsWithInternalStoreName() throws Exception {
final Map<Windowed<String>, String> results = new HashMap<>();
KTable table = groupedStream.reduce(
new Reducer<String>() {
@Override
public String apply(final String value1, final String value2) {
return value1 + ":" + value2;
}
}, SessionWindows.with(30));
table.foreach(new ForeachAction<Windowed<String>, String>() {
@Override
public void apply(final Windowed<String> key, final String value) {
results.put(key, value);
}
});
doReduceSessionWindows(results);
assertNull(table.queryableStoreName());
}
示例4: shouldCountSessionWindows
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
@Test
public void shouldCountSessionWindows() throws Exception {
final Map<Windowed<String>, Long> results = new HashMap<>();
KTable table = groupedStream.count(SessionWindows.with(30), "session-store");
table.foreach(new ForeachAction<Windowed<String>, Long>() {
@Override
public void apply(final Windowed<String> key, final Long value) {
results.put(key, value);
}
});
doCountSessionWindows(results);
assertEquals(table.queryableStoreName(), "session-store");
}
示例5: doShouldReduce
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
private void doShouldReduce(final KTable<String, Integer> reduced, final String topic) throws Exception {
final Map<String, Integer> results = new HashMap<>();
reduced.foreach(new ForeachAction<String, Integer>() {
@Override
public void apply(final String key, final Integer value) {
results.put(key, value);
}
});
driver = new KStreamTestDriver(builder, TestUtils.tempDirectory(), Serdes.String(), Serdes.Integer());
driver.setTime(10L);
driver.process(topic, "A", 1.1);
driver.process(topic, "B", 2.2);
driver.flushState();
assertEquals(Integer.valueOf(1), results.get("A"));
assertEquals(Integer.valueOf(2), results.get("B"));
driver.process(topic, "A", 2.6);
driver.process(topic, "B", 1.3);
driver.process(topic, "A", 5.7);
driver.process(topic, "B", 6.2);
driver.flushState();
assertEquals(Integer.valueOf(5), results.get("A"));
assertEquals(Integer.valueOf(6), results.get("B"));
}
示例6: testForeach
import org.apache.kafka.streams.kstream.KTable; //导入方法依赖的package包/类
@Test
public void testForeach() {
// Given
List<KeyValue<Integer, String>> inputRecords = Arrays.asList(
new KeyValue<>(0, "zero"),
new KeyValue<>(1, "one"),
new KeyValue<>(2, "two"),
new KeyValue<>(3, "three")
);
List<KeyValue<Integer, String>> expectedRecords = Arrays.asList(
new KeyValue<>(0, "ZERO"),
new KeyValue<>(2, "ONE"),
new KeyValue<>(4, "TWO"),
new KeyValue<>(6, "THREE")
);
final List<KeyValue<Integer, String>> actualRecords = new ArrayList<>();
ForeachAction<Integer, String> action =
new ForeachAction<Integer, String>() {
@Override
public void apply(Integer key, String value) {
actualRecords.add(new KeyValue<>(key * 2, value.toUpperCase(Locale.ROOT)));
}
};
// When
KStreamBuilder builder = new KStreamBuilder();
KTable<Integer, String> table = builder.table(intSerde, stringSerde, topicName, "anyStoreName");
table.foreach(action);
// Then
driver = new KStreamTestDriver(builder, stateDir);
for (KeyValue<Integer, String> record: inputRecords) {
driver.process(topicName, record.key, record.value);
}
driver.flushState();
assertEquals(expectedRecords.size(), actualRecords.size());
for (int i = 0; i < expectedRecords.size(); i++) {
KeyValue<Integer, String> expectedRecord = expectedRecords.get(i);
KeyValue<Integer, String> actualRecord = actualRecords.get(i);
assertEquals(expectedRecord, actualRecord);
}
}