Java Code Examples for org.springframework.core.io.Resource#isReadable()

The following examples show how to use org.springframework.core.io.Resource#isReadable() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: PathResourceResolver.java From spring4-understanding with Apache License 2.0

6 votes

/**
 * Find the resource under the given location.
 * <p>The default implementation checks if there is a readable
 * {@code Resource} for the given path relative to the location.
 * @param resourcePath the path to the resource
 * @param location the location to check
 * @return the resource, or {@code null} if none found
 */
protected Resource getResource(String resourcePath, Resource location) throws IOException {
	Resource resource = location.createRelative(resourcePath);
	if (resource.exists() && resource.isReadable()) {
		if (checkResource(resource, location)) {
			return resource;
		}
		else if (logger.isTraceEnabled()) {
			logger.trace("Resource path=\"" + resourcePath + "\" was successfully resolved " +
					"but resource=\"" +	resource.getURL() + "\" is neither under the " +
					"current location=\"" + location.getURL() + "\" nor under any of the " +
					"allowed locations=" + Arrays.asList(getAllowedLocations()));
		}
	}
	return null;
}

Example 2

Source File: PathResourceResolver.java From lams with GNU General Public License v2.0

6 votes

/**
 * Find the resource under the given location.
 * <p>The default implementation checks if there is a readable
 * {@code Resource} for the given path relative to the location.
 * @param resourcePath the path to the resource
 * @param location the location to check
 * @return the resource, or {@code null} if none found
 */
protected Resource getResource(String resourcePath, Resource location) throws IOException {
	Resource resource = location.createRelative(resourcePath);
	if (resource.exists() && resource.isReadable()) {
		if (checkResource(resource, location)) {
			return resource;
		}
		else if (logger.isTraceEnabled()) {
			logger.trace("Resource path=\"" + resourcePath + "\" was successfully resolved " +
					"but resource=\"" +	resource.getURL() + "\" is neither under the " +
					"current location=\"" + location.getURL() + "\" nor under any of the " +
					"allowed locations=" + Arrays.asList(getAllowedLocations()));
		}
	}
	return null;
}

Example 3

Source File: FileSystemStorageService.java From spring-guides with Apache License 2.0

6 votes

@Override
public Resource loadAsResource(String filename) {
    try {
        Path file = load(filename);
        Resource resource = new UrlResource(file.toUri());
        if (resource.exists() || resource.isReadable()) {
            return resource;
        }
        else {
            throw new StorageFileNotFoundException(
                    "Could not read file: " + filename);

        }
    }
    catch (MalformedURLException e) {
        throw new StorageFileNotFoundException("Could not read file: " + filename, e);
    }
}

Example 4

Source File: FileSystemStorageService.java From code-examples with MIT License

6 votes

@Override
public Resource loadAsResource(String filename) {
    try {
        Path file = load(filename);
        Resource resource = new UrlResource(file.toUri());
        if (resource.exists() || resource.isReadable()) {
            return resource;
        }
        else {
            throw new FileNotFoundException(
                    "Could not read file: " + filename);
        }
    }
    catch (MalformedURLException e) {
        throw new FileNotFoundException("Could not read file: " + filename, e);
    }
}

Example 5

Source File: AutoJsonRpcClientProxyCreator.java From jsonrpc4j with MIT License

6 votes

@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
	SimpleMetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory(applicationContext);
	DefaultListableBeanFactory defaultListableBeanFactory = (DefaultListableBeanFactory) beanFactory;
	String resolvedPath = resolvePackageToScan();
	logger.debug("Scanning '{}' for JSON-RPC service interfaces.", resolvedPath);
	try {
		for (Resource resource : applicationContext.getResources(resolvedPath)) {
			if (resource.isReadable()) {
				MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(resource);
				ClassMetadata classMetadata = metadataReader.getClassMetadata();
				AnnotationMetadata annotationMetadata = metadataReader.getAnnotationMetadata();
				String jsonRpcPathAnnotation = JsonRpcService.class.getName();
				if (annotationMetadata.isAnnotated(jsonRpcPathAnnotation)) {
					String className = classMetadata.getClassName();
					String path = (String) annotationMetadata.getAnnotationAttributes(jsonRpcPathAnnotation).get("value");
					logger.debug("Found JSON-RPC service to proxy [{}] on path '{}'.", className, path);
					registerJsonProxyBean(defaultListableBeanFactory, className, path);
				}
			}
		}
	} catch (IOException e) {
		throw new IllegalStateException(format("Cannot scan package '%s' for classes.", resolvedPath), e);
	}
}

Example 6

Source File: WindowConfig.java From cuba with Apache License 2.0

5 votes

protected MetadataReader loadClassMetadata(String className) {
    Resource resource = getResourceLoader().getResource("/" + className.replace(".", "/") + ".class");
    if (!resource.isReadable()) {
        throw new RuntimeException(String.format("Resource %s is not readable for class %s", resource, className));
    }
    try {
        return getMetadataReaderFactory().getMetadataReader(resource);
    } catch (IOException e) {
        throw new RuntimeException("Unable to read resource " + resource, e);
    }
}

Example 7

Source File: TencentStorage.java From litemall with MIT License

5 votes

@Override
public Resource loadAsResource(String keyName) {
    try {
        URL url = new URL(getBaseUrl() + keyName);
        Resource resource = new UrlResource(url);
        if (resource.exists() || resource.isReadable()) {
            return resource;
        }
    } catch (MalformedURLException e) {
        logger.error(e.getMessage(), e);
    }
    return null;
}

Example 8

Source File: PathResourceResolver.java From java-technology-stack with MIT License

5 votes

/**
 * Find the resource under the given location.
 * <p>The default implementation checks if there is a readable
 * {@code Resource} for the given path relative to the location.
 * @param resourcePath the path to the resource
 * @param location the location to check
 * @return the resource, or empty {@link Mono} if none found
 */
protected Mono<Resource> getResource(String resourcePath, Resource location) {
	try {
		Resource resource = location.createRelative(resourcePath);
		if (resource.isReadable()) {
			if (checkResource(resource, location)) {
				return Mono.just(resource);
			}
			else if (logger.isWarnEnabled()) {
				Resource[] allowedLocations = getAllowedLocations();
				logger.warn("Resource path \"" + resourcePath + "\" was successfully resolved " +
						"but resource \"" + resource.getURL() + "\" is neither under the " +
						"current location \"" + location.getURL() + "\" nor under any of the " +
						"allowed locations " + (allowedLocations != null ? Arrays.asList(allowedLocations) : "[]"));
			}
		}
		return Mono.empty();
	}
	catch (IOException ex) {
		if (logger.isDebugEnabled()) {
			String error = "Skip location [" + location + "] due to error";
			if (logger.isTraceEnabled()) {
				logger.trace(error, ex);
			}
			else {
				logger.debug(error + ": " + ex.getMessage());
			}
		}
		return Mono.error(ex);
	}
}

Example 9

Source File: JaxbElementWrapper.java From eclair with Apache License 2.0

5 votes

private Class<?>[] findWrapperClasses(Jaxb2Marshaller jaxb2Marshaller) {
    String contextPath = jaxb2Marshaller.getContextPath();
    if (!hasText(contextPath)) {
        return jaxb2Marshaller.getClassesToBeBound();
    }
    List<Class<?>> classes = new ArrayList<>();
    for (String path : contextPath.split(":")) {
        for (Resource resource : pathToResources(path)) {
            if (resource.isReadable()) {
                classes.add(forName(resource));
            }
        }
    }
    return classes.toArray(new Class[classes.size()]);
}

Example 10

Source File: UiExtensionsScanner.java From spring-boot-admin with Apache License 2.0

5 votes

public UiExtensions scan(String... locations) throws IOException {
	List<UiExtension> extensions = new ArrayList<>();
	for (String location : locations) {
		for (Resource resource : resolveAssets(location)) {
			String resourcePath = this.getResourcePath(location, resource);
			if (resourcePath != null && resource.isReadable()) {
				UiExtension extension = new UiExtension(resourcePath, location + resourcePath);
				log.debug("Found UiExtension {}", extension);
				extensions.add(extension);
			}
		}
	}
	return new UiExtensions(extensions);
}

Example 11

Source File: MongoXmlParser.java From jstarcraft-core with Apache License 2.0

5 votes

private String[] getResources(String packageName) {
    try {
        // 搜索资源
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(SystemPropertyUtils.resolvePlaceholders(packageName)) + "/" + DEFAULT_RESOURCE_PATTERN;
        Resource[] resources = resourcePatternResolver.getResources(packageSearchPath);
        // 提取资源
        Set<String> names = new HashSet<String>();
        String document = Document.class.getName();
        for (Resource resource : resources) {
            if (!resource.isReadable()) {
                continue;
            }
            // 判断是否静态资源
            MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(resource);
            AnnotationMetadata annotationMetadata = metadataReader.getAnnotationMetadata();
            if (!annotationMetadata.hasAnnotation(document)) {
                continue;
            }
            ClassMetadata classMetadata = metadataReader.getClassMetadata();
            names.add(classMetadata.getClassName());
        }
        return names.toArray(new String[0]);
    } catch (IOException exception) {
        String message = "无法获取资源";
        LOGGER.error(message, exception);
        throw new StorageConfigurationException(message, exception);
    }
}

Example 12

Source File: UiRoutesScanner.java From spring-boot-admin with Apache License 2.0

5 votes

public List<String> scan(String... locations) throws IOException {
	List<String> routes = new ArrayList<>();
	for (String location : locations) {
		for (Resource resource : this.resolver.getResources(toPattern(location) + "**/routes.txt")) {
			if (resource.isReadable()) {
				routes.addAll(readLines(resource.getInputStream()));
			}
		}
	}
	return routes;
}

Example 13

Source File: BerkeleyXmlParser.java From jstarcraft-core with Apache License 2.0

5 votes

private String[] getResources(String packageName) {
    try {
        // 搜索资源
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(SystemPropertyUtils.resolvePlaceholders(packageName)) + "/" + DEFAULT_RESOURCE_PATTERN;
        Resource[] resources = resourcePatternResolver.getResources(packageSearchPath);
        // 提取资源
        Set<String> names = new HashSet<String>();
        String entity = Entity.class.getName();
        String persistent = Persistent.class.getName();
        for (Resource resource : resources) {
            if (!resource.isReadable()) {
                continue;
            }
            // 判断是否静态资源
            MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(resource);
            AnnotationMetadata annotationMetadata = metadataReader.getAnnotationMetadata();
            if (!annotationMetadata.hasAnnotation(entity) && !annotationMetadata.hasAnnotation(persistent)) {
                continue;
            }
            ClassMetadata classMetadata = metadataReader.getClassMetadata();
            names.add(classMetadata.getClassName());
        }
        return names.toArray(new String[0]);
    } catch (IOException exception) {
        String message = "无法获取资源";
        LOGGER.error(message, exception);
        throw new StorageConfigurationException(message, exception);
    }
}

Example 14

Source File: HandlerAnnotationFactoryBean.java From MultimediaDesktop with Apache License 2.0

5 votes

private void onHandlerResource(
		Resource[] resources,
		MetadataReaderFactory readerFactory,
		ConcurrentHashMap<String, ConcurrentHashMap<HandlerScope, LinkedList<String>>> handlersMap)
		throws IOException {

	if (resources == null || readerFactory == null) {
		return;
	}

	for (Resource resource : resources) {
		if (resource.isReadable()) {
			MetadataReader reader = readerFactory
					.getMetadataReader(resource);
			// 这儿可以抽象出来，但是因为本项目只需要一个注解扫描
			if (matchesEntityTypeFilter(reader, readerFactory)) {
				Map<String, Object> map = reader.getAnnotationMetadata()
						.getAnnotationAttributes(
								"com.wms.studio.annotations.Handler");
				if (map != null) {
					String handlerName = (String) map.get("handlerName");
					String beanName = (String) map.get("beanName");
					HandlerScope scope = (HandlerScope) map.get("scope");
					if (scope == HandlerScope.None) {
						continue;
					}

					addHandler(handlerName, beanName, scope, handlersMap);
				}
			}
		}
	}
}

Example 15

Source File: LuceneXmlParser.java From jstarcraft-core with Apache License 2.0

5 votes

private String[] getResources(String packageName) {
    try {
        // 搜索资源
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(SystemPropertyUtils.resolvePlaceholders(packageName)) + "/" + DEFAULT_RESOURCE_PATTERN;
        Resource[] resources = resourcePatternResolver.getResources(packageSearchPath);
        // 提取资源
        Set<String> names = new HashSet<String>();
        String document = LuceneConfiguration.class.getName();
        for (Resource resource : resources) {
            if (!resource.isReadable()) {
                continue;
            }
            // 判断是否静态资源
            MetadataReader metadataReader = metadataReaderFactory.getMetadataReader(resource);
            AnnotationMetadata annotationMetadata = metadataReader.getAnnotationMetadata();
            if (!annotationMetadata.hasAnnotation(document)) {
                continue;
            }
            ClassMetadata classMetadata = metadataReader.getClassMetadata();
            names.add(classMetadata.getClassName());
        }
        return names.toArray(new String[0]);
    } catch (IOException exception) {
        String message = "无法获取资源";
        LOGGER.error(message, exception);
        throw new StorageConfigurationException(message, exception);
    }
}

Example 16

Source File: QiniuStorage.java From BigDataPlatform with GNU General Public License v3.0

5 votes

@Override
public Resource loadAsResource(String keyName) {
    try {
        URL url = new URL(generateUrl(keyName));
        Resource resource = new UrlResource(url);
        if (resource.exists() || resource.isReadable()) {
            return resource;
        }
    } catch (MalformedURLException e) {
        logger.error(e.getMessage(), e);
    }
    return null;
}

Example 17

Source File: CodecXmlParser.java From jstarcraft-core with Apache License 2.0

5 votes

/**
 * 获取指定包下的静态资源对象
 * 
 * @param packageName 包名
 * @return
 * @throws IOException
 */
private String[] getResources(String packageName) {
    try {
        // 搜索资源
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(SystemPropertyUtils.resolvePlaceholders(packageName)) + "/" + DEFAULT_RESOURCE_PATTERN;
        Resource[] resources = this.resourcePatternResolver.getResources(packageSearchPath);
        // 提取资源
        Set<String> names = new HashSet<String>();
        String name = ProtocolConfiguration.class.getName();
        for (Resource resource : resources) {
            if (!resource.isReadable()) {
                continue;
            }
            // 判断是否静态资源
            MetadataReader metadataReader = this.metadataReaderFactory.getMetadataReader(resource);
            ClassMetadata classMetadata = metadataReader.getClassMetadata();
            AnnotationMetadata annotationMetadata = metadataReader.getAnnotationMetadata();
            if (annotationMetadata.hasAnnotation(name)) {
                names.add(classMetadata.getClassName());
            } else {
                String[] interfaceNames = classMetadata.getInterfaceNames();
                for (String interfaceName : interfaceNames) {
                    metadataReader = this.metadataReaderFactory.getMetadataReader(interfaceName);
                    annotationMetadata = metadataReader.getAnnotationMetadata();
                    if (annotationMetadata.hasAnnotation(name)) {
                        names.add(classMetadata.getClassName());
                        break;
                    }
                }
            }
        }
        return names.toArray(new String[0]);
    } catch (IOException exception) {
        throw new RuntimeException(exception);
    }
}

Example 18

Source File: QiniuStorage.java From mall with MIT License

5 votes

@Override
public Resource loadAsResource(String keyName) {
    try {
        URL url = new URL(generateUrl(keyName));
        Resource resource = new UrlResource(url);
        if (resource.exists() || resource.isReadable()) {
            return resource;
        } else {
            return null;
        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return null;
    }
}

Example 19

Source File: ModelClassFinder.java From herd with Apache License 2.0

5 votes

/**
 * Finds all the model classes and the model error class.
 *
 * @throws MojoExecutionException if a class couldn't be instantiated or an I/O error occurred.
 */
private void findModelClasses() throws MojoExecutionException
{
    try
    {
        log.debug("Finding model classes.");

        // Get the model classes as resources.
        modelClasses = new HashSet<>();

        // Loop through each model resource and add each one to the set of model classes.
        for (Resource resource : ResourceUtils.getResources(ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX +
            ClassUtils.convertClassNameToResourcePath(SystemPropertyUtils.resolvePlaceholders(modelJavaPackage)) +
            "/**/*.class"))
        {
            if (resource.isReadable())
            {
                MetadataReader metadataReader = new CachingMetadataReaderFactory(new PathMatchingResourcePatternResolver()).getMetadataReader(resource);
                Class<?> clazz = Class.forName(metadataReader.getClassMetadata().getClassName());
                modelClasses.add(clazz);
                log.debug("Found model class \"" + clazz.getName() + "\".");

                // If the model error class name is configured and matches this class, then hold onto it.
                if (clazz.getSimpleName().equals(modelErrorClassName))
                {
                    log.debug("Found model error class \"" + clazz.getName() + "\".");
                    modelErrorClass = clazz;
                }
            }
        }
    }
    catch (IOException | ClassNotFoundException e)
    {
        throw new MojoExecutionException("Error finding model classes. Reason: " + e.getMessage(), e);
    }
}

Example 20

Source File: ClassPathScanningCandidateComponentProvider.java From thinking-in-spring-boot-samples with Apache License 2.0

4 votes

/**
 * Scan the class path for candidate components.
 * @param basePackage the package to check for annotated classes
 * @return a corresponding Set of autodetected bean definitions
 */
public Set<BeanDefinition> findCandidateComponents(String basePackage) {
    Set<BeanDefinition> candidates = new LinkedHashSet<BeanDefinition>();
    try {
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX +
                resolveBasePackage(basePackage) + "/" + this.resourcePattern;
        Resource[] resources = this.resourcePatternResolver.getResources(packageSearchPath);
        boolean traceEnabled = logger.isTraceEnabled();
        boolean debugEnabled = logger.isDebugEnabled();
        for (int i = 0; i < resources.length; i++) {
            Resource resource = resources[i];
            if (traceEnabled) {
                logger.trace("Scanning " + resource);
            }
            if (resource.isReadable()) {
                MetadataReader metadataReader = this.metadataReaderFactory.getMetadataReader(resource);
                if (isCandidateComponent(metadataReader)) {
                    ScannedGenericBeanDefinition sbd = new ScannedGenericBeanDefinition(metadataReader);
                    sbd.setResource(resource);
                    sbd.setSource(resource);
                    if (isCandidateComponent(sbd)) {
                        if (debugEnabled) {
                            logger.debug("Identified candidate component class: " + resource);
                        }
                        candidates.add(sbd);
                    }
                    else {
                        if (debugEnabled) {
                            logger.debug("Ignored because not a concrete top-level class: " + resource);
                        }
                    }
                }
                else {
                    if (traceEnabled) {
                        logger.trace("Ignored because not matching any filter: " + resource);
                    }
                }
            }
            else {
                if (traceEnabled) {
                    logger.trace("Ignored because not readable: " + resource);
                }
            }
        }
    }
    catch (IOException ex) {
        throw new BeanDefinitionStoreException("I/O failure during classpath scanning", ex);
    }
    return candidates;
}