Example usage for org.springframework.data.domain Page iterator

List of usage examples for org.springframework.data.domain Page iterator

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Introduction

In this page you can find the example usage for org.springframework.data.domain Page iterator.

Prototype

Iterator<T> iterator();

Source Link

Document

Returns an iterator over elements of type T .

Usage

From source file:com.javiermoreno.springboot.mvc.users.UserManagementServiceImpl.java

@Override
@Transactional// w ww .ja  v  a  2  s .  co  m
public Pair<List<DailyUser>, Long> retrieveAllUsers(@Min(0) int pageNumber, int amount,
        Sort.Direction direction, String sortingProperty) {
    PageRequest pr;
    if (direction != null && sortingProperty != null) {
        pr = new PageRequest(pageNumber, amount, direction, sortingProperty);
    } else {
        pr = new PageRequest(pageNumber, amount);
    }
    Page page = userRepository.findAll(pr);
    return new ImmutablePair(Lists.newArrayList(page.iterator()), page.getTotalElements());
}

From source file:com.venilnoronha.dzone.feed.fetcher.LinksFetcher.java

private Date findLastDumpedLink() {
    Date lastDumpedDate = null;//from  w w  w . jav a  2 s  .c om
    Pageable page = new PageRequest(0, 1, Direction.DESC, "linkDate");
    Page<Link> links = linksRepository.findAll(page);
    Iterator<Link> linksIter = links.iterator();
    if (linksIter.hasNext()) {
        Link lastDumpedLink = linksIter.next();
        lastDumpedDate = lastDumpedLink.getLinkDate();
    }
    return lastDumpedDate;
}

From source file:org.devgateway.toolkit.forms.wicket.providers.SortableJpaRepositoryDataProvider.java

/**
 * @see SortableDataProvider#iterator(long, long)
 */// w  w  w. j  a v a 2  s.c  o m
@Override
public Iterator<? extends T> iterator(final long first, final long count) {
    int page = (int) ((double) first / WebConstants.PAGE_SIZE);
    Page<T> findAll = jpaRepository.findAll(filterState.getSpecification(),
            new PageRequest(page, WebConstants.PAGE_SIZE, translateSort()));
    return findAll.iterator();
}

From source file:com.venilnoronha.dzone.feed.fetcher.ArticlesFetcher.java

private Date findLastDumpedArticle(String category) {
    Date lastDumpedDate = null;/*from   w  w  w  .j a  v  a 2 s  .  c om*/
    Pageable page = new PageRequest(0, 1, Direction.DESC, "articleDate");
    Page<Article> articles = articlesRepository.findByCategory(category, page);
    Iterator<Article> articlesIter = articles.iterator();
    if (articlesIter.hasNext()) {
        Article lastDumpedArticle = articlesIter.next();
        lastDumpedDate = lastDumpedArticle.getArticleDate();
    }
    return lastDumpedDate;
}

From source file:sk.lazyman.gizmo.data.provider.BasicDataProvider.java

@Override
public Iterator<? extends T> iterator(long first, long count) {
    int pageIndex = (int) Math.ceil((double) first / (double) itemsPerPage);
    LOG.debug("Setting page request: page {}, size {}", pageIndex, itemsPerPage);

    Predicate predicate = getPredicate();
    PageRequest page = new PageRequest(pageIndex, itemsPerPage, sort);

    Page<T> found;
    if (predicate == null) {
        found = repository.findAll(page);
    } else {/*from  ww  w.j a  v a 2  s. c  om*/
        QueryDslPredicateExecutor executor = (QueryDslPredicateExecutor) repository;
        found = executor.findAll(predicate, page);
    }

    if (found != null) {
        return found.iterator();
    }

    return new ArrayList<T>().iterator();
}

From source file:com.epam.ta.reportportal.core.launch.impl.GetLaunchHandler.java

@Override
public LaunchResource getLaunchByName(String project, Pageable pageable, Filter filter, String username) {
    filter.addCondition(new FilterCondition(EQUALS, false, project, Launch.PROJECT));
    Page<Launch> launches = launchRepository.findByFilter(filter, pageable);
    expect(launches, notNull()).verify(LAUNCH_NOT_FOUND);
    return launchResourceAssember.toResource(launches.iterator().next());
}

From source file:com.venilnoronha.dzone.feed.web.LinksRSSController.java

@RequestMapping(value = "/rss/links", method = RequestMethod.GET)
public ModelAndView linksRssByLastModified(HttpEntity<byte[]> requestEntity, HttpServletRequest request,
        HttpServletResponse response) throws ParseException {
    HttpUtils.logUserIP("LinksRSS", request);
    String lastModified = requestEntity.getHeaders().getFirst("If-Modified-Since");
    if (lastModified == null) {
        lastModified = requestEntity.getHeaders().getFirst("If-None-Match");
    }/*w  w w.  java2s . c o m*/
    PageRequest page = new PageRequest(0, feedSize, Direction.DESC, "linkDate");
    Page<Link> linkPage;
    if (lastModified != null) {
        Date lastModifiedDt = HTTP_FORMAT.parse(lastModified);
        linkPage = linksRepository.findByLinkDateBetween(lastModifiedDt, new Date(), page);
    } else {
        linkPage = linksRepository.findAll(page);
    }
    Iterator<Link> linksIter = linkPage.iterator();
    List<Link> links = new ArrayList<>();
    Date newLastModified = null;
    while (linksIter.hasNext()) {
        Link link = linksIter.next();
        Date linkDate = link.getLinkDate();
        if (newLastModified == null || newLastModified.before(linkDate)) {
            newLastModified = linkDate;
        }
        links.add(link);
    }
    if (links.isEmpty() && lastModified != null) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return null;
    } else {
        response.setHeader("ETag", HTTP_FORMAT.format(newLastModified));
        response.setHeader("Last-Modified", HTTP_FORMAT.format(newLastModified));
        ModelAndView mav = new ModelAndView();
        mav.setView(new LinksRSSView(links));
        return mav;
    }
}

From source file:com.venilnoronha.dzone.feed.web.ArticlesRSSController.java

@RequestMapping(value = "/rss/articles", method = RequestMethod.GET)
public ModelAndView articlesRssByLastModified(HttpEntity<byte[]> requestEntity, HttpServletRequest request,
        HttpServletResponse response) throws ParseException {
    HttpUtils.logUserIP("ArticlesRSS", request);
    String lastModified = requestEntity.getHeaders().getFirst("If-Modified-Since");
    if (lastModified == null) {
        lastModified = requestEntity.getHeaders().getFirst("If-None-Match");
    }//from   w w w .  ja v  a 2 s .c  o  m
    PageRequest page = new PageRequest(0, feedSize, Direction.DESC, "articleDate");
    Page<Article> articlePage;
    if (lastModified != null) {
        Date lastModifiedDt = HTTP_FORMAT.parse(lastModified);
        articlePage = articlesRepository.findByArticleDateBetween(lastModifiedDt, new Date(), page);
    } else {
        articlePage = articlesRepository.findAll(page);
    }
    Iterator<Article> articlesIter = articlePage.iterator();
    List<Article> articles = new ArrayList<>();
    Date newLastModified = null;
    while (articlesIter.hasNext()) {
        Article article = articlesIter.next();
        Date articleDate = article.getArticleDate();
        if (newLastModified == null || newLastModified.before(articleDate)) {
            newLastModified = articleDate;
        }
        articles.add(article);
    }
    if (articles.isEmpty() && lastModified != null) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return null;
    } else {
        response.setHeader("ETag", HTTP_FORMAT.format(newLastModified));
        response.setHeader("Last-Modified", HTTP_FORMAT.format(newLastModified));
        ModelAndView mav = new ModelAndView();
        mav.setView(new ArticlesRSSView(articles));
        return mav;
    }
}

From source file:com.contact.ContactController.java

@ResponseBody
@RequestMapping(value = "/listgrid", method = RequestMethod.GET, produces = "application/json")
public ContactGrid listGrid(@RequestParam(value = "page", required = false) Integer page,
        @RequestParam(value = "rows", required = false) Integer rows,
        @RequestParam(value = "sidx", required = false) String sortBy,
        @RequestParam(value = "sord", required = false) String order) {

    logger.info("Listing contacts for grid with page: {}, rows: {}", page, rows);
    logger.info("Listing contacts for grid with sort: {}, order: {}", sortBy, order);

    // Process order by
    Sort sort = null;/*from  w  ww .  j ava2s . c  om*/
    String orderBy = sortBy;
    if (orderBy != null && orderBy.equals("birthDateString"))
        orderBy = "birthDate";

    if (orderBy != null && order != null) {
        if (order.equals("desc")) {
            sort = new Sort(Sort.Direction.DESC, orderBy);
        } else
            sort = new Sort(Sort.Direction.ASC, orderBy);
    }

    // Constructs page request for current page
    // Note: page number for Spring Data JPA starts with 0, while jqGrid starts with 1
    PageRequest pageRequest = null;

    if (sort != null) {
        pageRequest = new PageRequest(page - 1, rows, sort);
    } else {
        pageRequest = new PageRequest(page - 1, rows);
    }

    Page<Contact> contactPage = contactService.findAllByPage(pageRequest);

    // Construct the grid data that will return as JSON data
    ContactGrid contactGrid = new ContactGrid();

    contactGrid.setCurrentPage(contactPage.getNumber() + 1);
    contactGrid.setTotalPages(contactPage.getTotalPages());
    contactGrid.setTotalRecords(contactPage.getTotalElements());

    contactGrid.setContactData(Lists.newArrayList(contactPage.iterator()));

    return contactGrid;
}

From source file:org.springframework.data.elasticsearch.core.query.CriteriaQueryTests.java

@Test
public void shouldPerformIsNotOperation() {
    // given//from w w  w  .j  a  v a2s  .  c o m
    List<IndexQuery> indexQueries = new ArrayList<IndexQuery>();
    // first document
    String documentId = randomNumeric(5);
    SampleEntity sampleEntity1 = new SampleEntity();
    sampleEntity1.setId(documentId);
    sampleEntity1.setMessage("bar");
    sampleEntity1.setVersion(System.currentTimeMillis());

    IndexQuery indexQuery1 = new IndexQuery();
    indexQuery1.setId(documentId);
    indexQuery1.setObject(sampleEntity1);
    indexQueries.add(indexQuery1);

    // second document
    String documentId2 = randomNumeric(5);
    SampleEntity sampleEntity2 = new SampleEntity();
    sampleEntity2.setId(documentId2);
    sampleEntity2.setMessage("foo");
    sampleEntity2.setVersion(System.currentTimeMillis());

    IndexQuery indexQuery2 = new IndexQuery();
    indexQuery2.setId(documentId2);
    indexQuery2.setObject(sampleEntity2);
    indexQueries.add(indexQuery2);

    elasticsearchTemplate.bulkIndex(indexQueries);
    elasticsearchTemplate.refresh(SampleEntity.class, true);
    CriteriaQuery criteriaQuery = new CriteriaQuery(new Criteria("message").is("foo").not());
    // when
    Page<SampleEntity> page = elasticsearchTemplate.queryForPage(criteriaQuery, SampleEntity.class);
    // then
    assertTrue(criteriaQuery.getCriteria().isNegating());
    assertThat(page, is(notNullValue()));
    assertFalse(page.iterator().next().getMessage().contains("foo"));
}