本文整理了Java中org.apereo.cas.util.ResourceUtils类的一些代码示例，展示了ResourceUtils类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ResourceUtils类的具体详情如下：
包路径：org.apereo.cas.util.ResourceUtils
类名称：ResourceUtils

ResourceUtils介绍

[英]Utility class to assist with resource operations.
[中]实用程序类，用于协助资源操作。

代码示例

代码示例来源：origin: org.apereo.cas/cas-server-core-util-api

/**
 * Does resource exist?
 *
 * @param resource       the resource
 * @param resourceLoader the resource loader
 * @return the boolean
 */
public static boolean doesResourceExist(final String resource, final ResourceLoader resourceLoader) {
  try {
    if (StringUtils.isNotBlank(resource)) {
      val res = resourceLoader.getResource(resource);
      return doesResourceExist(res);
    }
  } catch (final Exception e) {
    LOGGER.warn(e.getMessage(), e);
  }
  return false;
}

代码示例来源：origin: org.apereo.cas/cas-server-core-util-api

/**
 * Does resource exist?
 *
 * @param location the resource
 * @return the boolean
 */
public static boolean doesResourceExist(final String location) {
  try {
    return getResourceFrom(location) != null;
  } catch (final Exception e) {
    LOGGER.trace(e.getMessage(), e);
  }
  return false;
}

代码示例来源：origin: org.apereo.cas/cas-server-core-util-api

/**
 * Gets resource from a String location.
 *
 * @param location the metadata location
 * @return the resource from
 * @throws IOException the exception
 */
public static AbstractResource getResourceFrom(final String location) throws IOException {
  val metadataLocationResource = getRawResourceFrom(location);
  if (!metadataLocationResource.exists() || !metadataLocationResource.isReadable()) {
    throw new FileNotFoundException("Resource " + location + " does not exist or is unreadable");
  }
  return metadataLocationResource;
}

代码示例来源：origin: org.apereo.cas/cas-server-core-util-api

/**
 * Prepare classpath resource if needed file.
 *
 * @param resource the resource
 * @return the file
 */
public static Resource prepareClasspathResourceIfNeeded(final Resource resource) {
  if (resource == null) {
    LOGGER.debug("No resource defined to prepare. Returning null");
    return null;
  }
  return prepareClasspathResourceIfNeeded(resource, false, resource.getFilename());
}

代码示例来源：origin: org.apereo.cas/cas-server-core-services-registry

public AbstractResourceBasedServiceRegistry(final Resource configDirectory,
                      final Collection<StringSerializer<RegisteredService>> serializers,
                      final boolean enableWatcher,
                      final ApplicationEventPublisher eventPublisher,
                      final RegisteredServiceReplicationStrategy registeredServiceReplicationStrategy,
                      final RegisteredServiceResourceNamingStrategy resourceNamingStrategy) throws Exception {
  super(eventPublisher);
  LOGGER.trace("Provided service registry directory is specified at [{}]", configDirectory);
  val pattern = String.join("|", getExtensions());
  val servicesDirectory = ResourceUtils.prepareClasspathResourceIfNeeded(configDirectory, true, pattern);
  if (servicesDirectory == null) {
    throw new IllegalArgumentException("Could not determine the services configuration directory from " + configDirectory);
  }
  val file = servicesDirectory.getFile();
  LOGGER.trace("Prepared service registry directory is specified at [{}]", file);
  initializeRegistry(Paths.get(file.getCanonicalPath()), serializers, enableWatcher,
    registeredServiceReplicationStrategy, resourceNamingStrategy);
}

代码示例来源：origin: org.apereo.cas/cas-server-support-yubikey-core

@SneakyThrows
private static Map<String, String> getDevicesFromJsonResource(final Resource jsonResource) {
  if (!ResourceUtils.doesResourceExist(jsonResource)) {
    val res = jsonResource.getFile().createNewFile();
    if (res) {
      LOGGER.debug("Created JSON resource @ [{}]", jsonResource);
    }
  }
  if (ResourceUtils.doesResourceExist(jsonResource)) {
    val file = jsonResource.getFile();
    if (file.canRead() && file.length() > 0) {
      return MAPPER.readValue(file, Map.class);
    }
  } else {
    LOGGER.warn("JSON resource @ [{}] does not exist", jsonResource);
  }
  return new HashMap<>(0);
}

代码示例来源：origin: org.apereo.cas/cas-server-core-services-api

@SneakyThrows
  private void buildGroovyAccessStrategyInstanceIfNeeded() {
    if (this.groovyStrategyInstance == null) {
      val groovyResource = ResourceUtils.getResourceFrom(this.groovyScript);
      this.groovyStrategyInstance = ScriptingUtils.getObjectInstanceFromGroovyResource(groovyResource, RegisteredServiceAccessStrategy.class);
    }
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-themes

LOGGER.debug("Service [{}] is configured to use a custom theme [{}]", rService, rService.getTheme());
val resource = ResourceUtils.getRawResourceFrom(rService.getTheme());
if (resource instanceof FileSystemResource && resource.exists()) {
  LOGGER.debug("Executing groovy script to determine theme for [{}]", service.getId());

代码示例来源：origin: org.apereo.cas/cas-server-support-interrupt-core

@SneakyThrows
  private void readResourceForInterrupts() {
    this.interrupts = new LinkedHashMap<>();
    if (ResourceUtils.doesResourceExist(resource)) {
      try (Reader reader = new InputStreamReader(resource.getInputStream(), StandardCharsets.UTF_8)) {
        final TypeReference<Map<String, InterruptResponse>> personList = new TypeReference<>() {
        };
        this.interrupts = MAPPER.readValue(JsonValue.readHjson(reader).toString(), personList);
      }
    }
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-saml-idp-metadata

@Override
public boolean supports(final SamlRegisteredService service) {
  try {
    val metadataLocation = service.getMetadataLocation();
    val metadataResource = ResourceUtils.getResourceFrom(metadataLocation);
    return metadataResource instanceof ClassPathResource;
  } catch (final Exception e) {
    LOGGER.trace(e.getMessage(), e);
  }
  return false;
}

代码示例来源：origin: org.apereo.cas/cas-server-support-consent-core

@SneakyThrows
private Set<ConsentDecision> readDecisionsFromJsonResource() {
  if (ResourceUtils.doesResourceExist(jsonResource)) {
    try (Reader reader = new InputStreamReader(jsonResource.getInputStream(), StandardCharsets.UTF_8)) {
      final TypeReference<Set<ConsentDecision>> personList = new TypeReference<>() {
      };
      return MAPPER.readValue(JsonValue.readHjson(reader).toString(), personList);
    }
  }
  return new LinkedHashSet<>(0);
}

代码示例来源：origin: org.apereo.cas/cas-server-core-services-api

@SneakyThrows
private void buildGroovyMultifactorPolicyInstanceIfNeeded() {
  if (this.groovyPolicyInstance == null) {
    val groovyResource = ResourceUtils.getResourceFrom(this.groovyScript);
    this.groovyPolicyInstance = ScriptingUtils.getObjectInstanceFromGroovyResource(groovyResource, RegisteredServiceMultifactorPolicy.class);
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-trusted-mfa

@SneakyThrows
private void readTrustedRecordsFromResource() {
  this.storage = new LinkedHashMap<>();
  if (ResourceUtils.doesResourceExist(location)) {
    try (Reader reader = new InputStreamReader(location.getInputStream(), StandardCharsets.UTF_8)) {
      val personList = new TypeReference<Map<String, MultifactorAuthenticationTrustRecord>>() {
      };
      this.storage = MAPPER.readValue(JsonValue.readHjson(reader).toString(), personList);
    }
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-saml-idp-metadata

@Override
public boolean supports(final SamlRegisteredService service) {
  try {
    val metadataLocation = service.getMetadataLocation();
    val metadataResource = ResourceUtils.getResourceFrom(metadataLocation);
    return metadataResource instanceof FileSystemResource;
  } catch (final Exception e) {
    LOGGER.trace(e.getMessage(), e);
  }
  return false;
}

代码示例来源：origin: org.apereo.cas/cas-mgmt-core-authz

public CasSpringSecurityAuthorizationGenerator(final Resource usersFile) {
  val properties = new Properties();
  try {
    if (ResourceUtils.doesResourceExist(usersFile)) {
      properties.load(usersFile.getInputStream());
    }
  } catch (final Exception e) {
    LOGGER.error(e.getMessage(), e);
  }
  this.generator = new SpringSecurityPropertiesAuthorizationGenerator(properties);
  watchResource(usersFile);
}

代码示例来源：origin: org.apereo.cas/cas-server-core-authentication-attributes

@Override
  public Map<String, Object> getAttributesInternal(final Principal principal, final Map<String, Object> attributes, final RegisteredService service) {
    try {
      final Object[] args = {attributes, LOGGER, principal, service};
      val resource = ResourceUtils.getResourceFrom(this.groovyScript);
      return ScriptingUtils.executeGroovyScript(resource, args, Map.class, true);
    } catch (final Exception e) {
      LOGGER.error(e.getMessage(), e);
    }
    LOGGER.warn("Groovy script [{}] does not exist or cannot be loaded", groovyScript);
    return new HashMap<>(0);
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-oauth-uma-core

@SneakyThrows
public UmaRequestingPartyTokenSigningService(final Resource jwksFile, final String issuer) {
  super(issuer);
  if (ResourceUtils.doesResourceExist(jwksFile)) {
    val json = IOUtils.toString(jwksFile.getInputStream(), StandardCharsets.UTF_8);
    val jsonWebKeySet = new JsonWebKeySet(json);
    val keys = jsonWebKeySet.getJsonWebKeys();
    if (keys.isEmpty()) {
      throw new IllegalArgumentException("No JSON web keys are found in the JWKS keystore " + jwksFile);
    }
    this.jsonWebKey = RsaJsonWebKey.class.cast(jsonWebKeySet.getJsonWebKeys().get(0));
  } else {
    LOGGER.warn("JWKS file for UMA RPT tokens is undefined or cannot be located. Tokens will not be signed");
    this.jsonWebKey = null;
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-saml-idp-core

@Override
  protected Map<String, Object> getAttributesForSamlRegisteredService(final Map<String, Object> attributes,
                                    final SamlRegisteredService service, final ApplicationContext applicationContext,
                                    final SamlRegisteredServiceCachingMetadataResolver resolver,
                                    final SamlRegisteredServiceServiceProviderMetadataFacade facade,
                                    final EntityDescriptor entityDescriptor) {
    try {
      final Object[] args = {attributes, service, resolver, facade, entityDescriptor, applicationContext, LOGGER};
      val resource = ResourceUtils.getResourceFrom(this.groovyScript);
      return ScriptingUtils.executeGroovyScript(resource, args, Map.class, true);
    } catch (final Exception e) {
      LOGGER.error(e.getMessage(), e);
    }
    LOGGER.warn("Groovy script [{}] does not exist or cannot be loaded", groovyScript);
    return new HashMap<>(0);
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-support-saml-idp-metadata

@Override
  public boolean isAvailable(final SamlRegisteredService service) {
    if (supports(service)) {
      val metadataLocation = service.getMetadataLocation();
      return ResourceUtils.doesResourceExist(metadataLocation);
    }
    return false;
  }
}

代码示例来源：origin: org.apereo.cas/cas-server-core-services-api

private String resolveUsernameFromExternalGroovyScript(final Principal principal, final Service service, final String scriptFile) {
  try {
    LOGGER.debug("Found groovy script to execute");
    val resourceFrom = ResourceUtils.getResourceFrom(scriptFile);
    val script = IOUtils.toString(resourceFrom.getInputStream(), StandardCharsets.UTF_8);
    val result = getGroovyAttributeValue(principal, script);
    if (result != null) {
      LOGGER.debug("Found username [{}] from script [{}]", result, scriptFile);
      return result.toString();
    }
  } catch (final IOException e) {
    LOGGER.error(e.getMessage(), e);
  }
  LOGGER.warn("Groovy script [{}] returned no value for username attribute. Fallback to default [{}]", this.groovyScript, principal.getId());
  return principal.getId();
}