Example usage for org.springframework.util ObjectUtils isEmpty

Introduction

In this page you can find the example usage for org.springframework.util ObjectUtils isEmpty.

Prototype

@SuppressWarnings("rawtypes")
public static boolean isEmpty(@Nullable Object obj) 

Source Link

Document

Determine whether the given object is empty.

Usage

From source file:com.gohighedu.platform.framework.utils.common.StringUtils.java

/**
 * Convenience method to return a String array as a delimited (e.g. CSV)
 * String. E.g. useful for <code>toString()</code> implementations.
 * @param arr the array to display// w w w.  j  av a  2 s.  c o  m
 * @param delim the delimiter to use (probably a ",")
 * @return the delimited String
 */
public static String arrayToDelimitedString(Object[] arr, String delim) {
    if (ObjectUtils.isEmpty(arr)) {
        return "";
    }
    if (arr.length == 1) {
        return ObjectUtils.nullSafeToString(arr[0]);
    }
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < arr.length; i++) {
        if (i > 0) {
            sb.append(delim);
        }
        sb.append(arr[i]);
    }
    return sb.toString();
}

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From source file:com.jpoweredcart.common.mock.servlet.MockServletContext.java

public Set<String> getResourcePaths(String path) {
    String actualPath = (path.endsWith("/") ? path : path + "/");
    Resource resource = this.resourceLoader.getResource(getResourceLocation(actualPath));
    try {/*from   w w w. j ava2 s.c  om*/
        File file = resource.getFile();
        String[] fileList = file.list();
        if (ObjectUtils.isEmpty(fileList)) {
            return null;
        }
        Set<String> resourcePaths = new LinkedHashSet<String>(fileList.length);
        for (String fileEntry : fileList) {
            String resultPath = actualPath + fileEntry;
            if (resource.createRelative(fileEntry).getFile().isDirectory()) {
                resultPath += "/";
            }
            resourcePaths.add(resultPath);
        }
        return resourcePaths;
    } catch (IOException ex) {
        logger.warn("Couldn't get resource paths for " + resource, ex);
        return null;
    }
}

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From source file:com.qcadoo.customTranslation.internal.CustomTranslationResolverImpl.java

@Override
public String getCustomTranslation(final String key, final Locale locale, final String[] args) {
    String translation = customTranslationCacheService.getCustomTranslation(key, locale.getLanguage());

    if (translation == null) {
        return null;
    } else {//from  ww  w  .j  ava2s  . co  m
        translation = translation.replace("'", "''");

        Object[] argsToUse = args;

        if (!ObjectUtils.isEmpty(argsToUse)) {
            argsToUse = ArrayUtils.EMPTY_OBJECT_ARRAY;
        }

        MessageFormat messageFormat = new MessageFormat(translation);

        return messageFormat.format(argsToUse);
    }
}

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From source file:com.sg.socrates.service.item.excel.AbstractExcelItemReader.java

@Override
protected T doRead() throws Exception {
    if (this.noInput) {
        return null;
    }/* w w  w . j a v  a2 s .  c  o  m*/
    final Sheet sheet = this.getSheet(this.currentSheet);
    final String[] row = this.readRow(sheet);
    if (ObjectUtils.isEmpty(row)) {
        this.currentSheet++;
        if (this.currentSheet >= this.getNumberOfSheets()) {
            if (logger.isDebugEnabled()) {
                logger.debug("No more sheets in '" + this.resource.getDescription() + "'.");
            }
            return null;
        } else {
            this.currentRow = 0;
            this.openSheet();
            return this.doRead();
        }
    } else {
        try {
            return this.rowMapper.mapRow(sheet, row, this.currentRow);
        } catch (final Exception e) {
            throw new ExcelFileParseException("Exception parsing Excel file.", e,
                    this.resource.getDescription(), sheet.getName(), this.currentRow, row);
        }
    }
}

---

From source file:com.thoughtworks.go.http.mocks.MockServletContext.java

@Override
public Set<String> getResourcePaths(String path) {
    String actualPath = (path.endsWith("/") ? path : path + "/");
    Resource resource = this.resourceLoader.getResource(getResourceLocation(actualPath));
    try {/*w  w  w  .  jav a  2  s  .  co  m*/
        File file = resource.getFile();
        String[] fileList = file.list();
        if (ObjectUtils.isEmpty(fileList)) {
            return null;
        }
        Set<String> resourcePaths = new LinkedHashSet<>(fileList.length);
        for (String fileEntry : fileList) {
            String resultPath = actualPath + fileEntry;
            if (resource.createRelative(fileEntry).getFile().isDirectory()) {
                resultPath += "/";
            }
            resourcePaths.add(resultPath);
        }
        return resourcePaths;
    } catch (IOException ex) {
        logger.warn("Couldn't get resource paths for " + resource, ex);
        return null;
    }
}

---

From source file:fi.vm.sade.eperusteet.ylops.service.ops.impl.OpetussuunnitelmaServiceImpl.java

@Override
@Cacheable("tilastot")
@Transactional(readOnly = true)/*from   w  w  w .ja v a  2 s. c  o  m*/
public OpetussuunnitelmaStatistiikkaDto getStatistiikka() {
    List<OpetussuunnitelmaInfoDto> opsit = mapper
            .mapAsList(repository.findAllByTyyppi(Tyyppi.OPS), OpetussuunnitelmaInfoDto.class).stream()
            .map(ops -> {
                try {
                    fetchOrganisaatioNimet(ops);
                } catch (BusinessRuleViolationException ex) {
                    logger.error(ex.getLocalizedMessage());
                }
                return ops;
            }).collect(Collectors.toList());

    OpetussuunnitelmaStatistiikkaDto result = new OpetussuunnitelmaStatistiikkaDto();
    result.getTasoittain().put("seutukunnat", opsit.stream().filter(ops -> ops.getKunnat().size() > 1).count());
    result.getTasoittain().put("kunnat", opsit.stream().filter(ops -> ops.getKunnat().size() == 1).count());
    result.getTasoittain().put("koulujoukko",
            opsit.stream()
                    .filter(ops -> ops.getOrganisaatiot().stream()
                            .filter(org -> !ObjectUtils.isEmpty(org.getTyypit()))
                            .filter(org -> "Oppilaitos".equals(org.getTyypit().get(0))).count() > 1)
                    .count());
    result.getTasoittain().put("koulut",
            opsit.stream()
                    .filter(ops -> ops.getOrganisaatiot().stream()
                            .filter(org -> !ObjectUtils.isEmpty(org.getTyypit()))
                            .filter(org -> "Oppilaitos".equals(org.getTyypit().get(0))).count() == 1)
                    .count());

    result.getKielittain().put("fi",
            opsit.stream().filter(ops -> ops.getJulkaisukielet().contains(Kieli.FI)).count());
    result.getKielittain().put("sv",
            opsit.stream().filter(ops -> ops.getJulkaisukielet().contains(Kieli.SV)).count());
    result.getKielittain().put("se",
            opsit.stream().filter(ops -> ops.getJulkaisukielet().contains(Kieli.SE)).count());
    result.getKielittain().put("en",
            opsit.stream().filter(ops -> ops.getJulkaisukielet().contains(Kieli.EN)).count());

    result.getTiloittain().put("esikatseltavissa",
            opsit.stream().filter(OpetussuunnitelmaBaseDto::isEsikatseltavissa).count());

    for (OpetussuunnitelmaInfoDto ops : opsit) {
        result.getKoulutustyypeittain().put(ops.getKoulutustyyppi().toString(),
                result.getKoulutustyypeittain().getOrDefault(ops.getKoulutustyyppi().toString(), 0L) + 1);
        result.getTiloittain().put(ops.getTila().toString(),
                result.getTiloittain().getOrDefault(ops.getTila().toString(), 0L) + 1);
    }

    return result;
}

---

From source file:jun.learn.scene.handlerMapping.HandlerExecutionChain.java

public void addInterceptors(HandlerInterceptor... interceptors) {
    if (!ObjectUtils.isEmpty(interceptors)) {
        initInterceptorList().addAll(Arrays.asList(interceptors));
    }/* ww  w  .  ja  v a 2  s . com*/
}

---

From source file:jun.learn.scene.handlerMapping.HandlerExecutionChain.java

/**
 * Apply preHandle methods of registered interceptors.
 * @return {@code true} if the execution chain should proceed with the
 * next interceptor or the handler itself. Else, DispatcherServlet assumes
 * that this interceptor has already dealt with the response itself.
 *///w w  w .  j  av  a  2s  .  c om
boolean applyPreHandle(HttpServletRequest request, HttpServletResponse response) throws Exception {
    HandlerInterceptor[] interceptors = getInterceptors();
    if (!ObjectUtils.isEmpty(interceptors)) {
        for (int i = 0; i < interceptors.length; i++) {
            HandlerInterceptor interceptor = interceptors[i];
            if (!interceptor.preHandle(request, response, this.handler)) {
                triggerAfterCompletion(request, response, null);
                return false;
            }
            this.interceptorIndex = i;
        }
    }
    return true;
}

---

From source file:jun.learn.scene.handlerMapping.HandlerExecutionChain.java

/**
 * Apply postHandle methods of registered interceptors.
 *//*from   w  w w  . ja v a 2s .  c om*/
void applyPostHandle(HttpServletRequest request, HttpServletResponse response, ModelAndView mv)
        throws Exception {
    HandlerInterceptor[] interceptors = getInterceptors();
    if (!ObjectUtils.isEmpty(interceptors)) {
        for (int i = interceptors.length - 1; i >= 0; i--) {
            HandlerInterceptor interceptor = interceptors[i];
            interceptor.postHandle(request, response, this.handler, mv);
        }
    }
}

---

From source file:jun.learn.scene.handlerMapping.HandlerExecutionChain.java

/**
 * Trigger afterCompletion callbacks on the mapped HandlerInterceptors.
 * Will just invoke afterCompletion for all interceptors whose preHandle invocation
 * has successfully completed and returned true.
 *///from  www. j av a 2 s .co  m
void triggerAfterCompletion(HttpServletRequest request, HttpServletResponse response, Exception ex)
        throws Exception {

    HandlerInterceptor[] interceptors = getInterceptors();
    if (!ObjectUtils.isEmpty(interceptors)) {
        for (int i = this.interceptorIndex; i >= 0; i--) {
            HandlerInterceptor interceptor = interceptors[i];
            try {
                interceptor.afterCompletion(request, response, this.handler, ex);
            } catch (Throwable ex2) {
                logger.error("HandlerInterceptor.afterCompletion threw exception", ex2);
            }
        }
    }
}

---

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