Example usage for org.springframework.core.io Resource exists

List of usage examples for org.springframework.core.io Resource exists

  1. HOME
  2. Java
  3. org.springframework
  4. org.springframework.core.io.*
  5. Resource
  6. exists

Introduction

In this page you can find the example usage for org.springframework.core.io Resource exists.

Prototype

boolean exists();

Source Link

Document

Determine whether this resource actually exists in physical form.

Usage

From source file:org.twinkql.context.TwinkqlContextFactory.java

/**
 * Load configuration file./*from   w w w  .  j  av  a 2  s.  com*/
 *
 * @return the twinkql config
 */
protected TwinkqlConfig loadConfigurationFile() {
    PathMatchingResourcePatternResolver resolver = this.createPathMatchingResourcePatternResolver();

    Resource configFile = resolver.getResource(this.configurationFile);

    TwinkqlConfig config = null;
    if (!configFile.exists()) {
        this.log.warn("No Twinql Configuration File specified. Using defaults.");
    } else {
        config = this.loadTwinkqlConfig(configFile);
    }

    return config;
}

From source file:com.haulmont.cuba.desktop.theme.impl.DesktopThemeLoaderImpl.java

@Override
public DesktopTheme loadTheme(String themeName) {
    String themeLocations = config.getResourceLocations();
    StrTokenizer tokenizer = new StrTokenizer(themeLocations);
    String[] locationList = tokenizer.getTokenArray();

    List<String> resourceLocationList = new ArrayList<>();
    DesktopThemeImpl theme = createTheme(themeName, locationList);
    theme.setName(themeName);/*from  w  ww .j a  v a2  s .  co m*/
    for (String location : locationList) {
        resourceLocationList.add(getResourcesDir(themeName, location));

        String xmlLocation = getConfigFileName(themeName, location);
        Resource resource = resources.getResource(xmlLocation);
        if (resource.exists()) {
            try {
                loadThemeFromXml(theme, resource);
            } catch (IOException e) {
                log.error("Error", e);
            }
        } else {
            log.warn("Resource " + location + " not found, ignore it");
        }
    }

    DesktopResources desktopResources = new DesktopResources(resourceLocationList, resources);
    theme.setResources(desktopResources);

    return theme;
}

From source file:com.haulmont.cuba.desktop.theme.impl.DesktopThemeLoaderImpl.java

private DesktopThemeImpl createTheme(String themeName, String[] locationList) {
    String themeClassName = null;
    for (String location : locationList) {
        String xmlLocation = getConfigFileName(themeName, location);
        Resource resource = resources.getResource(xmlLocation);
        if (resource.exists()) {
            try {
                Document doc = readXmlDocument(resource);
                final Element rootElement = doc.getRootElement();

                List<Element> classElements = rootElement.elements("class");
                if (!classElements.isEmpty()) {
                    themeClassName = classElements.get(0).getTextTrim();
                }/*from   ww  w  .ja  v a2  s . c  om*/
            } catch (IOException e) {
                log.error("Error", e);
            }
        } else {
            log.warn("Resource " + location + " not found, ignore it");
        }
    }
    if (themeClassName != null) {
        try {
            Class themeClass = Class.forName(themeClassName);
            return (DesktopThemeImpl) themeClass.newInstance();
        } catch (ClassNotFoundException | IllegalAccessException | InstantiationException e) {
            throw new RuntimeException(e);
        }
    }
    return new DesktopThemeImpl();
}

From source file:org.ireland.jnetty.webapp.ServletContextImpl.java

/**
 * Returns a resource for the given uri.
 * //  ww  w .  j  av  a  2 s .c o m
 *
 * @see org.springframework.mock.web.MockServletContext
 */
@Override
public URL getResource(String path) throws java.net.MalformedURLException {
    Resource resource = this.resourceLoader.getResource(getResourceLocation(path));

    if (!resource.exists()) {
        return null;
    }
    try {
        return resource.getURL();
    } catch (MalformedURLException ex) {
        throw ex;
    } catch (IOException ex) {
        log.info("Couldn't get URL for " + resource, ex);
        return null;
    }
}

From source file:com.netflix.genie.web.services.impl.JobDirectoryServerServiceImpl.java

/**
 * {@inheritDoc}/*  ww w . j  ava 2 s. co m*/
 */
@Override
public void serveResource(final String jobId, final URL baseUrl, final String relativePath,
        final HttpServletRequest request, final HttpServletResponse response)
        throws IOException, ServletException {
    // TODO: Metrics
    // Is the job running or not?
    final JobStatus jobStatus;
    try {
        jobStatus = this.jobPersistenceService.getJobStatus(jobId);
    } catch (final GenieNotFoundException e) {
        log.error(e.getMessage(), e);
        response.sendError(HttpStatus.NOT_FOUND.value(), e.getMessage());
        return;
    }

    // Is it V3 or V4?
    final boolean isV4;
    try {
        isV4 = this.jobPersistenceService.isV4(jobId);
    } catch (final GenieJobNotFoundException nfe) {
        // Really after the last check this shouldn't happen but just in case
        log.error(nfe.getMessage(), nfe);
        response.sendError(HttpStatus.NOT_FOUND.value(), nfe.getMessage());
        return;
    }

    // Normalize the base url. Make sure it ends in /.
    final URI baseUri;
    try {
        baseUri = new URI(baseUrl.toString() + SLASH).normalize();
    } catch (final URISyntaxException e) {
        log.error(e.getMessage(), e);
        response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value(),
                "Unable to convert " + baseUrl + " to valid URI");
        return;
    }

    if (jobStatus.isActive() && isV4) {

        final Optional<JobDirectoryManifest> manifest = this.agentFileStreamService.getManifest(jobId);
        if (!manifest.isPresent()) {
            log.error("Manifest not found for active job: {}", jobId);
            response.sendError(HttpStatus.SERVICE_UNAVAILABLE.value(),
                    "Could not load manifest for job: " + jobId);
            return;
        }

        final URI jobDirRoot;
        try {
            jobDirRoot = new URI(AgentFileProtocolResolver.URI_SCHEME, jobId, SLASH, null);
        } catch (final URISyntaxException e) {
            log.error(e.getMessage(), e);
            response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value(), e.getMessage());
            return;
        }

        this.handleRequest(baseUri, relativePath, request, response, manifest.get(), jobDirRoot);

    } else if (jobStatus.isActive()) {
        // Active V3 job

        // TODO: Manifest creation could be expensive
        final Resource jobDir = this.jobFileService.getJobFileAsResource(jobId, "");
        if (!jobDir.exists()) {
            log.error("Job directory {} doesn't exist. Unable to serve job contents.", jobDir);
            response.sendError(HttpStatus.NOT_FOUND.value());
            return;
        }
        final URI jobDirRoot;
        try {
            // Make sure the directory ends in a slash. Normalize will ensure only single slash
            jobDirRoot = new URI(jobDir.getURI().toString() + SLASH).normalize();
        } catch (final URISyntaxException e) {
            log.error(e.getMessage(), e);
            response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value(), e.getMessage());
            return;
        }
        final Path jobDirPath = Paths.get(jobDirRoot);

        final JobDirectoryManifest manifest = new JobDirectoryManifest(jobDirPath, false);
        this.handleRequest(baseUri, relativePath, request, response, manifest, jobDirRoot);
    } else {
        // Archived job
        final JobDirectoryManifest manifest;
        final URI jobDirRoot;
        try {
            final ManifestCacheValue cacheValue = this.manifestCache.get(jobId);
            manifest = cacheValue.getManifest();
            jobDirRoot = cacheValue.getJobDirectoryRoot();
        } catch (final Exception e) {
            // TODO: more fine grained exception handling
            if (e.getCause() instanceof JobNotArchivedException) {
                // will be thrown from the manifest loader
                log.error(e.getCause().getMessage(), e.getCause());
                response.sendError(HttpStatus.NOT_FOUND.value(), e.getCause().getMessage());
            } else {
                log.error(e.getMessage(), e);
                response.sendError(HttpStatus.INTERNAL_SERVER_ERROR.value(), e.getMessage());
            }
            return;
        }
        this.handleRequest(baseUri, relativePath, request, response, manifest, jobDirRoot);
    }
}

From source file:com.atolcd.alfresco.repo.patch.SchemaUpgradeScriptPatch.java

/**
 * Replaces the dialect placeholder in the script URL and attempts to find a
 * file for it. If not found, the dialect hierarchy will be walked until a
 * compatible script is found. This makes it possible to have scripts that
 * are generic to all dialects.//from  ww  w.  j  a  v  a 2 s  . c  om
 * 
 * @return Returns an input stream onto the script, otherwise null
 */
@SuppressWarnings("rawtypes")
private InputStream getScriptInputStream(Class dialectClazz, String scriptUrl) throws Exception {
    // replace the dialect placeholder
    String dialectScriptUrl = scriptUrl.replaceAll(PLACEHOLDER_SCRIPT_DIALECT, dialectClazz.getName());
    // get a handle on the resource
    Resource resource = rpr.getResource(dialectScriptUrl);
    if (!resource.exists()) {
        // it wasn't found. Get the superclass of the dialect and try again
        Class superClazz = dialectClazz.getSuperclass();
        if (Dialect.class.isAssignableFrom(superClazz)) {
            // we still have a Dialect - try again
            return getScriptInputStream(superClazz, scriptUrl);
        } else {
            // we have exhausted all options
            return null;
        }
    } else {
        // we have a handle to it
        return resource.getInputStream();
    }
}

From source file:org.opennms.features.vaadin.pmatrix.calculator.PmatrixDpdCalculatorRepository.java

/**
 * Causes the historical dataPointMap to load from a file determined by archiveFileLocation
 * @param archiveFile file definition to persist the data set to
 * @return true if dataPointMap loaded correctly, false if not
 *//*from   w ww  .  ja  v  a2  s  .c om*/
@PostConstruct
public boolean load() {

    repositoryLoaded = false;

    if (!persistHistoricData) {
        LOG.info("not loading persisted data as persistHistoricData=false");
        return false;
    }

    if (archiveFileName == null || archiveFileDirectoryLocation == null) {
        LOG.error("not using historical data from file as incorrect file location:"
                + " archiveFileDirectoryLocation=" + archiveFileDirectoryLocation + " archiveFileName="
                + archiveFileName);
        return false;
    }

    String archiveFileLocation = archiveFileDirectoryLocation + File.separator + archiveFileName;

    File archiveFile = null;

    try {
        Resource resource = resourceLoader.getResource(archiveFileLocation);
        if (!resource.exists()) {
            LOG.warn("cannot load historical data as file at archiveFileLocation='" + archiveFileLocation
                    + "' does not exist");
            return false;
        }

        archiveFile = new File(resource.getURL().getFile());
    } catch (IOException e) {
        LOG.error("cannot load historical data from file at archiveFileLocation='" + archiveFileLocation
                + "' due to error:", e);
        return false;
    } catch (Exception e) {
        LOG.error("cannot load historical data from file at archiveFileLocation='" + archiveFileLocation
                + "' due to error:", e);
        return false;
    }

    try {

        //TODO CHANGE TO PACKAGE
        //         JAXBContext jaxbContext = JAXBContext.newInstance(
        //               PmatrixDpdCalculatorImpl.class,
        //               PmatrixDpdCalculatorEmaImpl.class,
        //               PmatrixDpdCalculatorRepository.class,
        //               org.opennms.features.vaadin.pmatrix.model.NameValuePair.class);

        // see http://stackoverflow.com/questions/1043109/why-cant-jaxb-find-my-jaxb-index-when-running-inside-apache-felix
        // need to provide bundles class loader
        ClassLoader cl = org.opennms.features.vaadin.pmatrix.model.DataPointDefinition.class.getClassLoader();
        JAXBContext jaxbContext = JAXBContext.newInstance(
                "org.opennms.features.vaadin.pmatrix.model:org.opennms.features.vaadin.pmatrix.calculator", cl);

        //JAXBContext jaxbContext = JAXBContext.newInstance("org.opennms.features.vaadin.pmatrix.model:org.opennms.features.vaadin.pmatrix.calculator");

        Unmarshaller jaxbUnMarshaller = jaxbContext.createUnmarshaller();

        Object unmarshalledObject = jaxbUnMarshaller.unmarshal(archiveFile);

        if (unmarshalledObject instanceof PmatrixDpdCalculatorRepository) {
            PmatrixDpdCalculatorRepository pdcr = (PmatrixDpdCalculatorRepository) unmarshalledObject;
            dataPointMap = pdcr.getDataPointMap();

            LOG.info("successfully unmarshalled historical pmatrix data from file location:"
                    + archiveFile.getAbsolutePath());
            repositoryLoaded = true;
            return true;
        } else {
            LOG.error("cant unmarshal received object:" + unmarshalledObject);
        }

    } catch (JAXBException e) {
        LOG.error("problem unmarshalling file: " + archiveFile.getAbsolutePath(), e);
    } catch (Exception e) {
        LOG.error("problem unmarshalling file: " + archiveFile.getAbsolutePath(), e);
    }
    return false;

}

From source file:com.vilt.minium.script.test.impl.MiniumRhinoTestsSupport.java

protected Resource getResource(MiniumRhinoTestContextManager contextManager, JsVariable jsVariable) {
    String resourcePath = jsVariable.resource();
    Resource resource = null;
    if (StringUtils.isNotEmpty(resourcePath)) {
        resource = new DefaultResourceLoader(classLoader).getResource(resourcePath);
    } else if (StringUtils.isNotEmpty(jsVariable.resourceBean())) {
        resource = contextManager.getContext().getBean(jsVariable.resourceBean(), Resource.class);
    }/*from  w ww .  jav a2 s  .  c  om*/
    if (resource == null)
        return null;

    checkState(resource.exists() && resource.isReadable());
    return resource;
}

From source file:org.toobsframework.transformpipeline.domain.XSLUriResolverImpl.java

protected URL resolveContextResource(String xslFile, String string) throws IOException {
    Resource configFileURL = null;
    String systemId = null;/*  w w  w.  j  a va2  s . c  o  m*/
    for (int i = 0; i < this.contextBase.size(); i++) {
        systemId = this.contextBase.get(i) + xslFile;

        if (log.isDebugEnabled()) {
            log.debug("Checking for: " + systemId);
        }
        configFileURL = applicationContext.getResource(systemId);

        if (null != configFileURL) {
            break;
        }
    }
    if (configFileURL.exists()) {
        return configFileURL.getURL();
    }
    return null;
}

From source file:net.sourceforge.vulcan.spring.SpringFileStore.java

Resource getConfigurationResource() throws StoreException {
    final File config = getConfigFile();
    final Resource configResource;

    if (config.exists()) {
        configResource = new FileSystemResource(config);
    } else {/*from w w  w  .ja  va 2s .c om*/
        eventHandler.reportEvent(new WarningEvent(this, "FileStore.default.config"));
        configResource = new UrlResource(getClass().getResource("default-config.xml"));
    }

    if (!configResource.exists()) {
        throw new StoreException("Resource " + configResource + " does not exist", null);
    }
    return configResource;
}