本文整理了Java中com.netflix.spectator.api.Utils.filter()方法的一些代码示例，展示了Utils.filter()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Utils.filter()方法的具体详情如下：
包路径：com.netflix.spectator.api.Utils
类名称：Utils
方法名：filter

Utils.filter介绍

[英]Returns a new iterable restricted to measurements that match the predicate.
[中]返回一个新的iterable，该值仅限于与谓词匹配的度量值。

代码示例

代码示例来源：origin: com.netflix.spectator/spectator-api

/**
 * Returns the first measurement that matches the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param p
 *     Predicate to use for selecting values.
 * @return
 *     Measurement or null if no matches are found.
 */
public static Measurement first(Iterable<Measurement> ms, Predicate<Measurement> p) {
 Iterator<Measurement> it = filter(ms, p).iterator();
 return it.hasNext() ? it.next() : null;
}

代码示例来源：origin: Netflix/spectator

/**
 * Returns the first measurement that matches the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param p
 *     Predicate to use for selecting values.
 * @return
 *     Measurement or null if no matches are found.
 */
public static Measurement first(Iterable<Measurement> ms, Predicate<Measurement> p) {
 Iterator<Measurement> it = filter(ms, p).iterator();
 return it.hasNext() ? it.next() : null;
}

代码示例来源：origin: Netflix/spectator

/**
 * Returns a new iterable restricted to measurements that match the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param k
 *     Key to search for.
 * @param v
 *     Value that should be associated with k on the ids.
 * @return
 *     Measurements matching the predicate.
 */
public static Iterable<Measurement> filter(
  final Iterable<Measurement> ms, final String k, final String v) {
 return filter(ms, value -> v.equals(getTagValue(value.id(), k)));
}

代码示例来源：origin: com.netflix.spectator/spectator-api

/**
 * Returns a new iterable restricted to measurements that match the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param k
 *     Key to search for.
 * @param v
 *     Value that should be associated with k on the ids.
 * @return
 *     Measurements matching the predicate.
 */
public static Iterable<Measurement> filter(
  final Iterable<Measurement> ms, final String k, final String v) {
 return filter(ms, value -> v.equals(getTagValue(value.id(), k)));
}

代码示例来源：origin: Netflix/spectator

/**
 * Returns a new iterable restricted to measurements that match the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param t
 *     The key and value to search for.
 * @return
 *     Measurements matching the predicate.
 */
public static Iterable<Measurement> filter(Iterable<Measurement> ms, Tag t) {
 return filter(ms, t.key(), t.value());
}

代码示例来源：origin: com.netflix.spectator/spectator-api

/**
 * Returns a new iterable restricted to measurements that match the predicate.
 *
 * @param ms
 *     A set of measurements.
 * @param t
 *     The key and value to search for.
 * @return
 *     Measurements matching the predicate.
 */
public static Iterable<Measurement> filter(Iterable<Measurement> ms, Tag t) {
 return filter(ms, t.key(), t.value());
}

代码示例来源：origin: Netflix/spectator

@Test
 public void filterPredicateEmpty() {
  List<Measurement> ms = newList(10);
  List<Measurement> out = Utils.toList(Utils.filter(ms, v -> false));
  Assertions.assertEquals(0, out.size());
 }
}

代码示例来源：origin: Netflix/spectator

@Test
public void filterTag() {
 List<Measurement> ms = newList(10);
 Tag t = new BasicTag("i", "7");
 List<Measurement> out = Utils.toList(Utils.filter(ms, t));
 Assertions.assertEquals(1, out.size());
 Assertions.assertEquals(out.get(0).id().tags(), ArrayTagSet.create(t));
}

代码示例来源：origin: Netflix/spectator

@Test
public void filterKV() {
 List<Measurement> ms = newList(10);
 Tag t = new BasicTag("i", "7");
 List<Measurement> out = Utils.toList(Utils.filter(ms, "i", "7"));
 Assertions.assertEquals(1, out.size());
 Assertions.assertEquals(out.get(0).id().tags(), ArrayTagSet.create(t));
}

代码示例来源：origin: Netflix/spectator

@Test
public void filterPredicate() {
 List<Measurement> ms = newList(10);
 Tag t = new BasicTag("i", "7");
 List<Measurement> out = Utils.toList(Utils.filter(ms, v -> v.value() == 7.0));
 Assertions.assertEquals(1, out.size());
 Assertions.assertEquals(out.get(0).id().tags(), ArrayTagSet.create(t));
}