Example usage for java.util List stream

Introduction

In this page you can find the example usage for java.util List stream.

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:com.yahoo.bullet.parsing.RuleUtils.java

public static String makeFilter(String field, List<String> values, FilterType operation) {
    return "{" + "'field' : " + makeString(field) + ", " + "'operation' : "
            + makeString(getOperationFor(operation)) + ", " + "'values' : ['"
            + values.stream().reduce((a, b) -> a + "' , '" + b).orElse("") + "']" + "}";
}

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From source file:com.uber.hoodie.common.model.HoodieTestUtils.java

public static void writeRecordsToLogFiles(FileSystem fs, String basePath, Schema schema,
        List<HoodieRecord> updatedRecords) {
    Map<HoodieRecordLocation, List<HoodieRecord>> groupedUpdated = updatedRecords.stream()
            .collect(Collectors.groupingBy(HoodieRecord::getCurrentLocation));

    groupedUpdated.entrySet().forEach(s -> {
        HoodieRecordLocation location = s.getKey();
        String partitionPath = s.getValue().get(0).getPartitionPath();

        Writer logWriter;/*  ww  w . jav  a  2s. c o m*/
        try {
            logWriter = HoodieLogFormat.newWriterBuilder().onParentPath(new Path(basePath, partitionPath))
                    .withFileExtension(HoodieLogFile.DELTA_EXTENSION).withFileId(location.getFileId())
                    .overBaseCommit(location.getCommitTime()).withFs(fs).build();

            Map<HoodieLogBlock.HeaderMetadataType, String> header = Maps.newHashMap();
            header.put(HoodieLogBlock.HeaderMetadataType.INSTANT_TIME, location.getCommitTime());
            header.put(HoodieLogBlock.HeaderMetadataType.SCHEMA, schema.toString());
            logWriter.appendBlock(new HoodieAvroDataBlock(s.getValue().stream().map(r -> {
                try {
                    GenericRecord val = (GenericRecord) r.getData().getInsertValue(schema).get();
                    HoodieAvroUtils.addHoodieKeyToRecord(val, r.getRecordKey(), r.getPartitionPath(), "");
                    return (IndexedRecord) val;
                } catch (IOException e) {
                    return null;
                }
            }).collect(Collectors.toList()), header));
            logWriter.close();
        } catch (Exception e) {
            fail(e.toString());
        }
    });
}

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From source file:org.wallride.web.controller.admin.article.ArticleEditForm.java

public static ArticleEditForm fromDomainObject(Article article, Set<CustomField> customFields) {
    ArticleEditForm form = new ArticleEditForm();
    BeanUtils.copyProperties(article, form);

    if (article.getStatus().equals(Post.Status.DRAFT)) {
        form.setCode(article.getDraftedCode());
    }/*w  ww  .  ja  va 2  s. c  o m*/

    form.setCoverId(article.getCover() != null ? article.getCover().getId() : null);

    for (Category category : article.getCategories()) {
        form.getCategoryIds().add(category.getId());
    }

    List<String> tagNames = new ArrayList<>();
    for (Tag tag : article.getTags()) {
        tagNames.add(tag.getName());
    }
    form.setTags(StringUtils.join(tagNames, ","));

    for (Post post : article.getRelatedToPosts()) {
        form.getRelatedPostIds().add(post.getId());
    }

    if (article.getSeo() != null) {
        form.setSeoTitle(article.getSeo().getTitle());
        form.setSeoDescription(article.getSeo().getDescription());
        form.setSeoKeywords(article.getSeo().getKeywords());
    }

    List<CustomFieldValue> storedValues = new ArrayList<>(article.getCustomFieldValues());
    Map<CustomField, CustomFieldValue> storedFieldValueMap = new LinkedHashMap<>();
    storedValues.stream().forEach(value -> {
        storedFieldValueMap.put(value.getCustomField(), value);
    });
    for (CustomField orgField : customFields) {
        CustomFieldValueEditForm valueForm = new CustomFieldValueEditForm();
        valueForm.setCustomFieldId(orgField.getId());
        valueForm.setName(orgField.getName());
        valueForm.setDescription(orgField.getDescription());
        valueForm.setFieldType(orgField.getFieldType());
        valueForm.setOptions(orgField.getOptions());

        CustomFieldValue value = storedFieldValueMap.get(orgField);
        if (value != null) {
            valueForm.setId(value.getId());
            if (value.getCustomField().getFieldType().equals(CustomField.FieldType.CHECKBOX)) {
                if (value.getTextValue() != null) {
                    valueForm.setTextValues(value.getTextValue().split(","));
                }
            } else {
                valueForm.setTextValue(value.getTextValue());
            }
            valueForm.setStringValue(value.getStringValue());
            valueForm.setNumberValue(value.getNumberValue());
            valueForm.setDateValue(value.getDateValue());
            valueForm.setDatetimeValue(value.getDatetimeValue());
        }
        form.getCustomFieldValues().add(valueForm);
    }
    return form;
}

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From source file:com.streamsets.pipeline.lib.el.StringEL.java

@ElFunction(prefix = "list", name = "joinSkipNulls", description = "Returns each element of a LIST field joined on the specified character sequence skipping null "
        + "values.")
public static String joinListSkipNulls(@ElParam("list") List<Field> list,
        @ElParam("separator") String separator) {
    if (list == null) {
        return "";
    }// w  w  w. j ava2s .  c om

    List<String> listOfStrings = list.stream()
            .map(field -> field.getValue() == null ? null : field.getValueAsString())
            .collect(Collectors.toList());
    return Joiner.on(separator).skipNulls().join(listOfStrings);
}

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From source file:wiki.doc.DocResource.java

public static List<DocId> getAllLinkedDocs(List<DocId> docs, DbConnector dbc) {
    if (docs.size() == 0) {
        return new ArrayList<>(0);
    } else if (docs.size() <= 30000) {
        String inList = getParamList(docs.size());
        String sql = "SELECT pages.id FROM pages " + "INNER JOIN links ON links.toPage = pages.id "
                + "WHERE links.fromPage IN " + inList;
        Object[] ids = docs.stream().map((doc) -> doc.id).toArray();

        return dbc.jdbcTemplate.query(sql, ids, docIdMapper);
    } else {/*from   w w  w .ja  v  a 2s  .  c o m*/
        List<DocId> first = getAllLinkedDocs(docs.subList(0, 30000), dbc);
        first.addAll(getAllLinkedDocs(docs.subList(30000, docs.size()), dbc));
        return first;
    }
}

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From source file:wiki.doc.DocResource.java

public static List<DocId> getAllLinking(List<DocId> docs, DbConnector dbc) {
    if (docs.size() == 0) {
        return new ArrayList<>(0);
    } else if (docs.size() <= 30000) {
        String inList = getParamList(docs.size());
        String sql = "SELECT pages.id FROM pages " + "INNER JOIN links ON links.fromPage = pages.id "
                + "WHERE links.toPage IN " + inList;
        Object[] ids = docs.stream().map((doc) -> doc.id).toArray();

        return dbc.jdbcTemplate.query(sql, ids, docIdMapper);
    } else {// w  w w .ja  v a 2s . c  om
        List<DocId> first = getAllLinking(docs.subList(0, 30000), dbc);
        first.addAll(getAllLinking(docs.subList(30000, docs.size()), dbc));
        return first;
    }
}

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From source file:info.rmarcus.birkhoffvonneumann.MatrixUtils.java

public static int[] randomPermutationSparse(Random r, int n) {
    List<Integer> s = IntStream.range(0, n).mapToObj(i -> i)
            .collect(Collectors.toCollection(() -> new ArrayList<Integer>(n)));
    Collections.shuffle(s, r);/*  w w w.  j a  v  a 2s.  c  o  m*/
    return NullUtils.orThrow(s.stream().mapToInt(i -> i).toArray(),
            () -> new BVNRuntimeException("Could not convert ArrayList to array!"));
}

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From source file:org.apache.gobblin.utils.HttpUtils.java

/**
 * Update {@link StatusType} of a {@link ResponseStatus} based on statusCode and error code white list
 *
 * @param status a status report after handling the a response
 * @param statusCode a status code in http domain
 * @param errorCodeWhitelist a whitelist specifies what http error codes are tolerable
 */// w w  w  .  j  a  va 2s.c o m
public static void updateStatusType(ResponseStatus status, int statusCode, Set<String> errorCodeWhitelist) {
    if (statusCode >= 300 & statusCode < 500) {
        List<String> whitelist = new ArrayList<>();
        whitelist.add(Integer.toString(statusCode));
        if (statusCode > 400) {
            whitelist.add(HttpConstants.CODE_4XX);
        } else {
            whitelist.add(HttpConstants.CODE_3XX);
        }
        if (whitelist.stream().anyMatch(errorCodeWhitelist::contains)) {
            status.setType(StatusType.CONTINUE);
        } else {
            status.setType(StatusType.CLIENT_ERROR);
        }
    } else if (statusCode >= 500) {
        List<String> whitelist = Arrays.asList(Integer.toString(statusCode), HttpConstants.CODE_5XX);
        if (whitelist.stream().anyMatch(errorCodeWhitelist::contains)) {
            status.setType(StatusType.CONTINUE);
        } else {
            status.setType(StatusType.SERVER_ERROR);
        }
    }
}

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From source file:org.wallride.web.controller.admin.page.PageEditForm.java

public static PageEditForm fromDomainObject(Page page, Set<CustomField> allCustomFields) {
    PageEditForm form = new PageEditForm();
    BeanUtils.copyProperties(page, form);

    if (page.getStatus().equals(Post.Status.DRAFT)) {
        form.setCode(page.getDraftedCode());
    }/*w ww .  j a  v a  2  s .  c  om*/

    form.setCoverId(page.getCover() != null ? page.getCover().getId() : null);
    form.setParentId(page.getParent() != null ? page.getParent().getId() : null);

    for (Category category : page.getCategories()) {
        form.getCategoryIds().add(category.getId());
    }

    List<String> tagNames = new ArrayList<>();
    for (Tag tag : page.getTags()) {
        tagNames.add(tag.getName());
    }
    form.setTags(StringUtils.join(tagNames, ","));

    for (Post post : page.getRelatedToPosts()) {
        form.getRelatedPostIds().add(post.getId());
    }

    if (page.getSeo() != null) {
        form.setSeoTitle(page.getSeo().getTitle());
        form.setSeoDescription(page.getSeo().getDescription());
        form.setSeoKeywords(page.getSeo().getKeywords());
    }

    List<CustomFieldValue> storedValues = new ArrayList<>(page.getCustomFieldValues());
    Map<CustomField, CustomFieldValue> storedFieldValueMap = new LinkedHashMap<>();
    storedValues.stream().forEach(value -> {
        storedFieldValueMap.put(value.getCustomField(), value);
    });

    for (CustomField orgField : allCustomFields) {
        CustomFieldValueEditForm valueForm = new CustomFieldValueEditForm();
        valueForm.setCustomFieldId(orgField.getId());
        valueForm.setName(orgField.getName());
        valueForm.setDescription(orgField.getDescription());
        valueForm.setFieldType(orgField.getFieldType());
        valueForm.setOptions(orgField.getOptions());

        CustomFieldValue value = storedFieldValueMap.get(orgField);
        if (value != null) {
            valueForm.setId(value.getId());
            if (value.getCustomField().getFieldType().equals(CustomField.FieldType.CHECKBOX)) {
                if (value.getTextValue() != null) {
                    valueForm.setTextValues(value.getTextValue().split(","));
                }
            } else {
                valueForm.setTextValue(value.getTextValue());
            }
            valueForm.setStringValue(value.getStringValue());
            valueForm.setNumberValue(value.getNumberValue());
            valueForm.setDateValue(value.getDateValue());
            valueForm.setDatetimeValue(value.getDatetimeValue());
        }
        form.getCustomFieldValues().add(valueForm);
    }
    return form;
}

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From source file:com.codelanx.codelanxlib.inventory.iinterface.InventoryPanel.java

static InventoryPanel valueOf(InventoryInterface ii, Object o) {
    Map<String, Object> map = Config.getConfigSectionValue(o);
    if (map == null || map.isEmpty()) {
        return null;
    }//from ww w  . j a  v a 2 s  .c o m
    List<Object> objs = (List<Object>) map.get("icons");
    Boolean root = Boolean.valueOf(String.valueOf(map.get("root")));
    String name = String.valueOf(map.get("name"));
    if (objs != null && root != null) {
        List<MenuIcon> icons = objs.stream().map(obj -> MenuIcon.valueOf(ii, obj)).filter(Lambdas::notNull)
                .collect(Collectors.toList());
        int rows;
        if (map.get("rows") == null) {
            rows = (icons.size() / 9) + 1;
        } else {
            rows = Integer.valueOf(String.valueOf(map.get("rows")));
        }
        InventoryPanel ip = ii.newPanel(name, rows);
        ip.icons.addAll(icons);
        ip.icons.forEach(i -> ip.locations.put(ip.index++, i));
        if (root) {
            ii.setRootPanel(ip);
        }
        return ip;
    } else {
        return null;
    }
}

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