Java Predicate类代码示例

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
@Test
@SuppressWarnings("unchecked")
public void testSelects() {
    Record r = new Record();
    r.setUserIdentityARN("arn:sample");
    List<Record> records = Arrays.asList(r, new Record());
    Collection<Record> sample = CollectionUtils.select(records, new Predicate() {
        @Override
        public boolean evaluate(Object o) {
            return o instanceof Record && ((Record) o).getUserIdentityARN() != null &&  ((Record) o).getUserIdentityARN().contains("sample");
        }
    });

    Assertions.assertThat(sample).hasSize(1);
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
public IfExpression getRule(final String ruleId) {
    if (CollectionUtils.isEmpty(items)) {
        return null;
    }
    return (IfExpression)CollectionUtils.find(items, new Predicate() {
        @Override
        public boolean evaluate(Object object) {
            return ((IfExpression)object).getId().equals(ruleId);
        }
    });
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
/**
 * Get the list of patterns for a specified filetype.
 * You will always get a list.  In this order.
 * <ul>
 * <li>The Configured List</li>
 * <li>The Default List</li>
 * <li>A single item list of <code>&quot;**&#47;*&quot;</code></li>
 * </ul>
 *
 * @param id the id to lookup.
 * @return the list of patterns.
 */
public List<String> getFileTypePatterns( String id )
{
    Configuration config = archivaConfiguration.getConfiguration();
    Predicate selectedFiletype = new FiletypeSelectionPredicate( id );
    RepositoryScanningConfiguration repositoryScanningConfiguration = config.getRepositoryScanning();
    if ( repositoryScanningConfiguration != null )
    {
        FileType filetype =
            (FileType) CollectionUtils.find( config.getRepositoryScanning().getFileTypes(), selectedFiletype );

        if ( ( filetype != null ) && CollectionUtils.isNotEmpty( filetype.getPatterns() ) )
        {
            return filetype.getPatterns();
        }
    }
    List<String> defaultPatterns = defaultTypeMap.get( id );

    if ( CollectionUtils.isEmpty( defaultPatterns ) )
    {
        return Collections.singletonList( "**/*" );
    }

    return defaultPatterns;
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
/**
 * 获取赠品项
 * 
 * @return 赠品项
 */
@Transient
public Set<GiftItem> getGiftItems() {
	Set<GiftItem> giftItems = new HashSet<GiftItem>();
	for (Promotion promotion : getPromotions()) {
		if (promotion.getGiftItems() != null) {
			for (final GiftItem giftItem : promotion.getGiftItems()) {
				GiftItem target = (GiftItem) CollectionUtils.find(giftItems, new Predicate() {
					public boolean evaluate(Object object) {
						GiftItem other = (GiftItem) object;
						return other != null && other.getGift().equals(giftItem.getGift());
					}
				});
				if (target != null) {
					target.setQuantity(target.getQuantity() + giftItem.getQuantity());
				} else {
					giftItems.add(giftItem);
				}
			}
		}
	}
	return giftItems;
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
/**
 * ユーザーが同一プロジェクトに属していない場合はエラー.
 * @param users ユーザー
 * @throws ServiceAbortException 同一プロジェクトに属していない
 */
private void validateUserProjectDiff(List<User> users) throws ServiceAbortException {
    String projectId = getCurrentProjectId();
    SearchUserCondition condition = new SearchUserCondition();
    condition.setProjectId(projectId);
    List<ProjectUser> projectUsers = findProjectUser(condition);
    for (final User u : users) {
        //  プロジェクトに所属するユーザーリストに登録対象ユーザーが存在しなければエラー
        Object ret = CollectionUtils.find(projectUsers, new Predicate() {
            public boolean evaluate(Object object) {
                ProjectUser pu = (ProjectUser) object;
                return u.getEmpNo().equals(pu.getUser().getEmpNo());
            }
        });

        if (ret == null) {
            throw new ServiceAbortException(
                "invalid user",
                ApplicationMessageCode.CANNOT_PERFORM_BECAUSE_USER_ALREADY_DELETED,
                u.getLabel());
        }
    }
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
/**
 * 選択されたプロジェクトユーザーのユーザーが同一プロジェクトに属しているかチェックする.
 * @param id ID
 * @param users ユーザーリスト
 * @throws ServiceAbortException プロジェクトに属していない
 */
private void validateProjectUserExists(Long id, List<User> users) throws ServiceAbortException {
    SearchUserCondition condition = new SearchUserCondition();
    condition.setProjectId(getCurrentProjectId());

    UserDao dao = getDao(UserDao.class);
    List<ProjectUser> projectUsers = dao.findProjectUser(condition);

    for (final User u : users) {
        //  プロジェクトに所属するユーザーリストに登録対象ユーザーが存在しなければエラー
        Object ret = CollectionUtils.find(projectUsers, new Predicate() {
            public boolean evaluate(Object object) {
                ProjectUser pu = (ProjectUser) object;
                return u.getEmpNo().equals(pu.getUser().getEmpNo());
            }
        });

        if (ret == null) {
            throw new ServiceAbortException(
                "invalid user",
                ApplicationMessageCode.CANNOT_PERFORM_BECAUSE_USER_ALREADY_DELETED,
                u.getLabel());
        }
    }
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
public static int getClustersStat(String clusters) {

        Predicate predicate = new Predicate() {
            public boolean evaluate(Object object) {
                String clustersId = ((ClustersState) object).getClusters();
                return clustersId.compareTo(clusters) == 0;
            }
        };

        Iterator iterator = new FilterIterator(stateArray.iterator(), predicate);

        ClustersState state = null;
        while (iterator.hasNext()) {
            state = (ClustersState) iterator.next();
            break;

        }
        return (state != null) ? state.getState() : 0;
    }
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
public static ConsumerClusters selectByClusters(String clusters) {
    Predicate predicate = new Predicate() {
        public boolean evaluate(Object object) {
            String id = ((ClustersRelation) object).getId();
            return id.compareTo(clusters) == 0;
        }
    };

    Iterator iterator = new FilterIterator(relationArray.iterator(), predicate);

    ClustersRelation relation = null;
    while (iterator.hasNext()) {
        relation = (ClustersRelation) iterator.next();
        break;
    }

    return (relation != null) ? relation.getClusters() : null;
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
public Collection<CustomFieldPossibleValue> getPossibleValuesByParent(final CustomFieldPossibleValue parentValue, final Boolean onlyEnabled) {
    // When this field has no parent, return all values
    if (parent == null) {
        return possibleValues;
    }

    // When there's no parent value, or it don't match this field's parent, return an empty list
    if (possibleValues == null || parentValue == null || !parent.equals(parentValue.getField())) {
        return Collections.emptyList();
    }

    // Filter the possible values by parent value
    final Collection<CustomFieldPossibleValue> filteredPossibleValues = new ArrayList<CustomFieldPossibleValue>(possibleValues);
    CollectionUtils.filter(filteredPossibleValues, new Predicate() {
        @Override
        public boolean evaluate(final Object object) {
            final CustomFieldPossibleValue possibleValue = (CustomFieldPossibleValue) object;
            return parentValue.equals(possibleValue.getParent()) && (onlyEnabled ? possibleValue.isEnabled() : true);
        }
    });
    return filteredPossibleValues;
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
protected List<?> executeQuery(final ActionContext context) {
    final MembersReportHandler reportHandler = getReportHandler();
    final Pair<MembersTransactionsReportDTO, Iterator<MemberTransactionSummaryReportData>> pair = reportHandler.handleTransactionsSummary(context);
    final MembersTransactionsReportDTO dto = pair.getFirst();
    final Iterator<MemberTransactionSummaryReportData> reportIterator = pair.getSecond();
    final Iterator iterator = IteratorUtils.filteredIterator(reportIterator, new Predicate() {
        @Override
        public boolean evaluate(final Object element) {
            final MemberTransactionSummaryReportData data = (MemberTransactionSummaryReportData) element;
            if (dto.isIncludeNoTraders()) {
                return true;
            }
            return data.isHasData();
        }
    });
    return new IteratorListImpl(iterator);
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
protected List<?> executeQuery(final ActionContext context) {
    final MembersReportHandler reportHandler = getReportHandler();
    final Pair<MembersTransactionsReportDTO, Iterator<MemberTransactionDetailsReportData>> pair = reportHandler.handleTransactionsDetails(context);
    final MembersTransactionsReportDTO dto = pair.getFirst();
    final Iterator<MemberTransactionDetailsReportData> reportIterator = pair.getSecond();
    final Iterator iterator = IteratorUtils.filteredIterator(reportIterator, new Predicate() {
        @Override
        public boolean evaluate(final Object element) {
            final MemberTransactionDetailsReportData data = (MemberTransactionDetailsReportData) element;
            if (dto.isIncludeNoTraders()) {
                return true;
            }
            return data.getAmount() != null;
        }
    });
    return new IteratorListImpl(iterator);
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
@Nonnull
@Override
public Iterable<MachineImage> listImages(@Nullable final ImageFilterOptions options) throws CloudException, InternalException {
    if (options != null && !ImageClass.MACHINE.equals(options.getImageClass())) {
        return Collections.emptyList();
    }

    if(options != null)
        options.withAccountNumber(provider.getContext().getAccountNumber());

    return getImages(new Predicate() {
        @Override
        public boolean evaluate(Object object) {
            if(options != null)
                return options.matches((MachineImage)object);
            else
                return provider.getContext().getAccountNumber().equals(((MachineImage)object).getProviderOwnerId());
        }
    });
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
public void removeVlan(final String vlanId) throws CloudException, InternalException {
    WAPVMNetworksModel networksModel = new AzurePackRequester(provider,
            new AzurePackNetworkRequests(provider).listVMNetworks().build()).withJsonProcessor(WAPVMNetworksModel.class).execute();

    WAPVMNetworkModel foundNetwork = (WAPVMNetworkModel)CollectionUtils.find(networksModel.getVirtualMachineNetworks(), new Predicate() {
        @Override
        public boolean evaluate(Object object) {
            return ((WAPVMNetworkModel)object).getId().equalsIgnoreCase(vlanId);
        }
    });

    if(foundNetwork == null)
        throw new InternalException("Invalid network id provided for deletion");

    new AzurePackRequester(provider, new AzurePackNetworkRequests(provider).deleteVMNetwork(foundNetwork).build()).execute();
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
private List<WAPDatabaseProducts.WAPDatabaseProduct> getDBProductsFromFile() throws InternalException {
    List<WAPDatabaseProducts> dbProducts = new ArrayList<>();
    try {
        InputStream inputStream = getDBProductFileStream(this.provider.getDBProductsResource());
        dbProducts.addAll(Arrays.asList(new JsonStreamToObjectProcessor<WAPDatabaseProducts[]>().read(inputStream, WAPDatabaseProducts[].class)));
    } catch (Exception ex) {
        throw new InternalException("Cannot load products from dbproducts.json file");
    }

    //if there is only one cloud provider in the json file, return all the products as default
    if(dbProducts.size() == 1)
        return Arrays.asList(dbProducts.get(0).getProducts());

    CollectionUtils.filter(dbProducts, new Predicate() {
        @Override
        public boolean evaluate(Object object) {
            WAPDatabaseProducts products = (WAPDatabaseProducts)object;
            return provider.getContext().getCloud().getCloudName().equalsIgnoreCase(products.getCloud()) && provider.getContext().getCloud().getProviderName().equalsIgnoreCase(products.getProvider());
        }
    });

    if(dbProducts.size() != 1)
        return Arrays.asList();

    return Arrays.asList(dbProducts.get(0).getProducts());
}
 

import org.apache.commons.collections.Predicate; //导入依赖的package包/类
private SearchCriterionMarshaller findMarshaller(final SearchCriterion criterion) {
    SearchCriterionMarshaller marshaller = cachedMarshallers.get(criterion.getClass());

    if (marshaller == null) {
        marshaller = (SearchCriterionMarshaller) CollectionUtils.find(marshallers,
                new Predicate() {
                    @Override
                    public boolean evaluate(Object arg0) {
                        SearchCriterionMarshaller marshaller = (SearchCriterionMarshaller) arg0;

                        return marshaller.supports(criterion.getClass());
                    }
                });
        // caching here for later use
        cachedMarshallers.put(criterion.getClass(), marshaller);
    }

    return marshaller;
}