本文整理了Java中org.apache.commons.collections4.CollectionUtils.filter()方法的一些代码示例，展示了CollectionUtils.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。CollectionUtils.filter()方法的具体详情如下：
包路径：org.apache.commons.collections4.CollectionUtils
类名称：CollectionUtils
方法名：filter

CollectionUtils.filter介绍

[英]Filter the collection by applying a Predicate to each element. If the predicate returns false, remove the element.

If the input collection or predicate is null, there is no change made.
[中]通过对每个元素应用谓词来筛选集合。如果谓词返回false，则删除元素。
如果输入集合或谓词为null，则不会进行任何更改。

代码示例

代码示例来源：origin: gocd/gocd

private ArrayList<PluginFileDetails> findUpdatedPlugins(Set<PluginFileDetails> currentPluginFiles, Set<PluginFileDetails> knownPluginFileDetails) {
  final ArrayList<PluginFileDetails> currentPlugins = new ArrayList<>(currentPluginFiles);
  final ArrayList<PluginFileDetails> knownPlugins = new ArrayList<>(knownPluginFileDetails);
  CollectionUtils.filter(knownPlugins, object -> {
    PluginFileDetails knownPlugin = (PluginFileDetails) object;
    int i = currentPlugins.indexOf(knownPlugin);
    if (i == -1) {
      return false;
    }
    PluginFileDetails plugin = currentPlugins.get(i);
    return plugin.doesTimeStampDiffer(knownPlugin);
  });
  return knownPlugins;
}

代码示例来源：origin: gocd/gocd

public void filter(String filterCriteria) {
  if (StringUtils.isBlank(filterCriteria)) {
    return;
  }
  final Map<String, String> filters = filters(filterCriteria);
  if (filters.isEmpty()) {
    return;
  }
  CollectionUtils.filter(this, agent -> {
    boolean finalResult = false;
    for (Map.Entry<String, String> entry : filters.entrySet()) {
      AgentFilters filter = AgentFilters.valueOf(entry.getKey().toUpperCase());
      finalResult = finalResult || filter.matches(agent, entry.getValue());
    }
    return finalResult;
  });
}

代码示例来源：origin: org.apache.commons/commons-collections4

/**
 * Filter the collection by applying a Predicate to each element. If the
 * predicate returns true, remove the element.
 * <p>
 * This is equivalent to <pre>filter(collection, PredicateUtils.notPredicate(predicate))</pre>
 * if predicate is != null.
 * <p>
 * If the input collection or predicate is null, there is no change made.
 *
 * @param <T>  the type of object the {@link Iterable} contains
 * @param collection  the collection to get the input from, may be null
 * @param predicate  the predicate to use as a filter, may be null
 * @return true if the collection is modified by this call, false otherwise.
 */
public static <T> boolean filterInverse(final Iterable<T> collection, final Predicate<? super T> predicate) {
  return filter(collection, predicate == null ? null : PredicateUtils.notPredicate(predicate));
}

代码示例来源：origin: org.apache.commons/commons-collections4

/**
 * Factory method to create an ordered set using the supplied list to retain order.
 * <p>
 * A <code>HashSet</code> is used for the set behaviour.
 * <p>
 * NOTE: If the list contains duplicates, the duplicates are removed,
 * altering the specified list.
 *
 * @param <E> the element type
 * @param list the list to decorate, must not be null
 * @return a new ordered set
 * @throws NullPointerException if list is null
 * @since 4.0
 */
public static <E> ListOrderedSet<E> listOrderedSet(final List<E> list) {
  if (list == null) {
    throw new NullPointerException("List must not be null");
  }
  CollectionUtils.filter(list, UniquePredicate.uniquePredicate());
  final Set<E> set = new HashSet<>(list);
  return new ListOrderedSet<>(set, list);
}

代码示例来源：origin: info.magnolia/magnolia-module-standard-templating-kit

/**
 * Filters out items (nodes) which do not meet this condition: minDate <= itemDate && itemDate < maxDate.
 *
 * @param itemsList List of nodes.
 * @param minDate Minimal date of the interval.
 * @param maxDate Maximal date of the interval.
 * @param datePropertyName Name of property in which is date stored.
 * @param useCreationDate If true, then will look to MetaData for creation date and if exists, will use it as a date if no date found in property datePropertyName.
 */
public static void filterDateContentList(List<Node> itemsList, final Calendar minDate, final Calendar maxDate, final String datePropertyName, final boolean useCreationDate) {
  CollectionUtils.filter(itemsList, new Predicate() {
    @Override
    public boolean evaluate(Object object) {
      Node node = (Node) object;
      Calendar date = resolveDate(node, datePropertyName, useCreationDate, Calendar.getInstance());
      // INSMR-447: Increase milliseconds by one. Otherwise event will not be shown if date==minDate.
      if (date.getTimeInMillis() == minDate.getTimeInMillis()) {
        date.add(Calendar.SECOND, 1);
      }
      return date.after(minDate) && date.before(maxDate);
    }
  });
}

代码示例来源：origin: org.jbehave/jbehave-maven-plugin

private Set<Artifact> resourceArtifacts() {
  Set<Artifact> artifacts = allArtifacts();
  CollectionUtils.filter(artifacts, new Predicate<Artifact>() {
    public boolean evaluate(Artifact artifact) {
      return allowedBy("artifactId", artifact.getArtifactId(), resourceArtifactIds)
          && allowedBy("type", artifact.getType(), resourceTypes);
    }
  });
  return artifacts;
}

代码示例来源：origin: tjg1/nori

/**
 * Remove images not in the given set of {@link Image.SafeSearchRating} from this SearchResult.
 *
 * @param safeSearchRatings SafeSearch ratings to remove.
 */
public void filter(final Image.SafeSearchRating... safeSearchRatings) {
 // Don't waste time filtering against an empty array.
 if (safeSearchRatings == null || safeSearchRatings.length == 0) {
  return;
 }
 // Concert filtered rating array to List
 final List<Image.SafeSearchRating> ratingList = Arrays.asList(safeSearchRatings);
 // Remove images containing filtered ratings.
 CollectionUtils.filter(images, new Predicate<Image>() {
  @Override
  public boolean evaluate(Image image) {
   return ratingList.contains(image.safeSearchRating);
  }
 });
 reorderImagePageOffsets();
}

代码示例来源：origin: tjg1/nori

/**
 * Remove images with the given set of {@link Tag}s from this SearchResult.
 *
 * @param tags Tags to remove.
 */
public void filter(final Tag... tags) {
 // Don't waste time filtering against an empty array.
 if (tags == null || tags.length == 0) {
  return;
 }
 // Don't filter tags searched for by the user.
 final Collection<Tag> tagList = CollectionUtils.removeAll(Arrays.asList(tags), Arrays.asList(query));
 // Remove images containing filtered tags.
 CollectionUtils.filter(images, new Predicate<Image>() {
  @Override
  public boolean evaluate(Image image) {
   return !CollectionUtils.containsAny(Arrays.asList(image.tags), tagList);
  }
 });
 reorderImagePageOffsets();
}

代码示例来源：origin: Jimmy-Shi/bean-query

/**
 * Execute this Query. If query from a null or empty collection, an empty list
 * will be returned.
 *
 * @return
 */
public List<T> execute() {
 if (CollectionUtils.isEmpty(from)) {
  logger.info("Querying from an empty collection, returning empty list.");
  return Collections.emptyList();
 }
 List copied = new ArrayList(this.from);
 logger.info("Start apply predicate [{}] to collection with [{}] items.", predicate, copied.size());
 CollectionUtils.filter(copied, this.predicate);
 logger.info("Done filtering collection, filtered result size is [{}]", copied.size());
 if (null != this.comparator && copied.size()>1) {
  Comparator actualComparator = this.descSorting ? comparator.desc() : comparator.asc();
  logger.info("Start to sort the filtered collection with comparator [{}]", actualComparator);
  Collections.sort(copied, actualComparator);
  logger.info("Done sorting the filtered collection.");
 }
 logger.info("Start to slect from filtered collection with selector [{}].", selector);
 List<T> select = this.selector.select(copied);
 logger.info("Done select from filtered collection.");
 return select;
}

代码示例来源：origin: info.magnolia/magnolia-core

@Override
public Object merge(List sources) {
  CollectionUtils.filter(sources, NotNullPredicate.INSTANCE);
  if (sources.isEmpty()) {
    return null;
  }
  if (sources.size() == 1 || isSimpleType(sources.get(0).getClass()) || !isMergeable(sources.get(0).getClass())) {
    return sources.get(0);
  }
  if (sources.get(0) instanceof Collection) {
    return mergeCollections(sources);
  }
  if (sources.get(0) instanceof Map) {
    return mergeMaps(sources);
  }
  return mergeBean(sources);
}

代码示例来源：origin: com.haulmont.reports/reports-core

CollectionUtils.filter(filteredParams, predicate);
if (filteredParams.size() == 1) {
  return metadata.getClass(filteredParams.get(0).getEntityMetaClass());

代码示例来源：origin: info.magnolia/magnolia-core

@Override
public Collection<Content> getChildren(final ContentFilter filter, final String namePattern, Comparator<Content> orderCriteria) {
  // copy
  final Collection<MockNode> children = ((MockNode) node).getChildren().values();
  final Collection<Content> contentChildren = new ArrayList<Content>();
  for (MockNode current : children) {
    contentChildren.add(wrapAsContent(current));
  }
  final Predicate filterPredicate = new Predicate() {
    @Override
    public boolean evaluate(Object object) {
      return filter.accept((Content) object);
    }
  };
  CollectionUtils.filter(contentChildren, filterPredicate);
  if (namePattern != null) {
    CollectionUtils.filter(contentChildren, new NamePatternFilter(namePattern));
  }
  return contentChildren;
}