@Override
protected void doOpen() throws Exception {
Assert.notNull(resource, "Input resource must be set");
Assert.notNull(recordSeparatorPolicy, "RecordSeparatorPolicy must be set");
noInput = true;
if (!resource.exists()) {
if (strict) {
throw new IllegalStateException(
"Input resource must exist (reader is in 'strict' mode): " + resource);
}
logger.warn("Input resource does not exist " + resource.getDescription());
return;
}
if (!resource.isReadable()) {
if (strict) {
throw new IllegalStateException(
"Input resource must be readable (reader is in 'strict' mode): " + resource);
}
logger.warn("Input resource is not readable " + resource.getDescription());
return;
}
reader = bufferedReaderFactory.create(resource, encoding);
for (int i = 0; i < linesToSkip; i++) {
String line = readLine();
if (skippedLinesCallback != null) {
skippedLinesCallback.handleLine(line);
}
}
noInput = false;
}
public static List<ServiceDefinition> load(ClassLoader classLoader) throws IOException {
ServiceDefinitionReader reader = new ServiceDefinitionReader();
List<ServiceDefinition> services = new ArrayList<>();
for (Resource resource : getResources(classLoader)) {
if (LOG.isDebugEnabled()) {
LOG.debug("Reading service definition: " + resource.getDescription());
}
try (InputStream in = resource.getInputStream()) {
ServiceDefinition service = reader.readService(in);
if (service != null) {
if (!service.disabled) {
services.add(service);
} else {
LOG.debug("Skipping disabled service");
}
} else {
LOG.warn("Error reading service definition " + resource.getDescription());
}
} catch (IOException | RuntimeException e) {
LOG.error("Error reading service definition: " + resource.getDescription(), e);
}
}
return services;
}
/**
* @return string corresponding to logical record according to {@link
* #setRecordSeparatorPolicy(RecordSeparatorPolicy)} (might span multiple lines in file).
*/
@Override
protected T doRead() throws Exception {
if (noInput) {
return null;
}
String line = readLine();
if (line == null) {
return null;
} else {
try {
return lineMapper.mapLine(line, lineCount);
} catch (Exception ex) {
throw new FlatFileParseException(
"Parsing error at line: "
+ lineCount
+ " in resource=["
+ resource.getDescription()
+ "], input=["
+ line
+ "]",
ex,
line,
lineCount);
}
}
}
/**
* Return the description for the given Resource; if the description is empty, return the class
* name of the resource plus its identity hash code.
*
* @see org.springframework.core.io.Resource#getDescription()
*/
private static String getNameForResource(Resource resource) {
String name = resource.getDescription();
if (!StringUtils.hasText(name)) {
name = resource.getClass().getSimpleName() + "@" + System.identityHashCode(resource);
}
return name;
}
/**
* load.
*
* @param resource a {@link org.springframework.core.io.Resource} object.
* @return a {@link java.util.List} object.
*/
public List<ReconfigBeanDefinitionHolder> load(Resource resource) {
List<ReconfigBeanDefinitionHolder> holders = new ArrayList<ReconfigBeanDefinitionHolder>();
try {
InputStream inputStream = resource.getInputStream();
try {
InputSource inputSource = new InputSource(inputStream);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = factory.newDocumentBuilder();
Document doc = docBuilder.parse(inputSource);
Element root = doc.getDocumentElement();
NodeList nl = root.getChildNodes();
BeanDefinitionParser parser = new BeanDefinitionParser();
for (int i = 0; i < nl.getLength(); i++) {
Node node = nl.item(i);
if (node instanceof Element) {
Element ele = (Element) node;
ReconfigBeanDefinitionHolder holder = parser.parseBeanDefinitionElement(ele);
holders.add(holder);
}
}
} finally {
if (null != inputStream) {
inputStream.close();
}
}
} catch (Exception ex) {
throw new RuntimeException(
"IOException parsing XML document from " + resource.getDescription(), ex);
}
return holders;
}
/**
* Constructs a GroovyPageMetaInfo instance which holds the script class, modified date and so on
*
* @param inputStream The InputStream to construct the GroovyPageMetaInfo instance from
* @param res The Spring Resource to construct the MetaInfo from
* @param pageName The name of the page (can be null, in which case method responsible for
* calculating appropriate alternative)
* @return The GroovyPageMetaInfo instance
*/
protected GroovyPageMetaInfo buildPageMetaInfo(
InputStream inputStream, Resource res, String pageName) {
String name = establishPageName(res, pageName);
long lastModified = establishLastModified(res);
GroovyPageParser parser;
String path = getPathForResource(res);
try {
parser = new GroovyPageParser(name, path, path, inputStream);
} catch (IOException e) {
throw new GroovyPagesException(
"I/O parsing Groovy page ["
+ (res != null ? res.getDescription() : name)
+ "]: "
+ e.getMessage(),
e);
}
InputStream in = parser.parse();
// Make a new metaInfo
GroovyPageMetaInfo metaInfo = createPageMetaInfo(parser, lastModified, in);
try {
metaInfo.setPageClass(compileGroovyPage(in, name, path, metaInfo));
metaInfo.setHtmlParts(parser.getHtmlPartsArray());
} catch (GroovyPagesException e) {
metaInfo.setCompilationException(e);
}
if (!name.startsWith(GENERATED_GSP_NAME_PREFIX)) {
pageCache.put(name, metaInfo);
}
return metaInfo;
}
public static void main(String[] args) throws Throwable {
ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
Resource resources[] = resolver.getResources("classpath*:com/baobaotao/**/*.xml");
for (Resource resource : resources) {
System.out.println(resource.getDescription());
}
}
private String getPathForResource(Resource res) {
if (res == null) return "";
String path = null;
try {
File file = res.getFile();
if (file != null) path = file.getAbsolutePath();
} catch (IOException e) {
// ignore
}
if (path != null) {
return path;
}
if (res.getDescription() != null) {
return res.getDescription();
}
return "";
}
public static Reader getReaderForResource(Resource resource) {
InputStreamReader reader = null;
try {
reader = new InputStreamReader(resource.getInputStream(), "UTF8");
} catch (Exception e) {
throw new ExecutionException("Unable to read resource " + resource.getDescription(), e);
}
return reader;
}
public static void main(String[] args) {
ApplicationContext ac = new ClassPathXmlApplicationContext();
/**
* Spring可以根据file: http: classpath: 判断要使用的Resource实现类； 如果没有前缀，则根据ApplicationContext实现类判定
* ApplicationContext 实现了ResourceLoader接口，可以通过getResource("")获得Resource
*/
Resource res = ac.getResource("com/tyy/spring_senior/resource/more/demoFile");
System.out.println(res.getDescription());
}
/**
* Load bean definitions from the specified properties file.
*
* @param resource the resource descriptor for the properties file
* @return the number of bean definitions found
* @throws BeansException in case of loading or parsing errors
*/
public int loadBeanDefinitions(Resource resource, String prefix) {
Properties props = new Properties();
try {
InputStream is = resource.getInputStream();
try {
props.load(is);
} finally {
is.close();
}
return registerBeanDefinitions(props, prefix, resource.getDescription());
} catch (IOException ex) {
throw new BeanDefinitionStoreException("IOException parsing properties from " + resource, ex);
}
}
/**
* Actually load bean definitions from the specified XML file.
*
* @param inputSource the SAX InputSource to read from
* @param resource the resource descriptor for the XML file
* @return the number of bean definitions found
* @throws BeanDefinitionStoreException in case of loading or parsing errors
*/
protected int doLoadBeanDefinitions(InputSource inputSource, Resource resource)
throws BeanDefinitionStoreException {
try {
int validationMode = getValidationModeForResource(resource);
Document doc =
this.documentLoader.loadDocument(
inputSource,
getEntityResolver(),
this.errorHandler,
validationMode,
isNamespaceAware());
return registerBeanDefinitions(doc, resource);
} catch (BeanDefinitionStoreException ex) {
throw ex;
} catch (SAXParseException ex) {
throw new XmlBeanDefinitionStoreException(
resource.getDescription(),
"Line " + ex.getLineNumber() + " in XML document from " + resource + " is invalid",
ex);
} catch (SAXException ex) {
throw new XmlBeanDefinitionStoreException(
resource.getDescription(), "XML document from " + resource + " is invalid", ex);
} catch (ParserConfigurationException ex) {
throw new BeanDefinitionStoreException(
resource.getDescription(),
"Parser configuration exception parsing XML from " + resource,
ex);
} catch (IOException ex) {
throw new BeanDefinitionStoreException(
resource.getDescription(), "IOException parsing XML document from " + resource, ex);
} catch (Throwable ex) {
throw new BeanDefinitionStoreException(
resource.getDescription(),
"Unexpected exception parsing XML document from " + resource,
ex);
}
}
public static String readText(Resource resource) {
Reader reader = null;
try {
reader = getReaderForResource(resource);
return FileCopyUtils.copyToString(reader);
} catch (Exception e) {
throw new ExecutionException("Unable to read resource " + resource.getDescription(), e);
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
}
}
}
}
protected void autoDeployResources(ProcessEngine processEngine) {
if (deploymentResources != null && deploymentResources.length > 0) {
RepositoryService repositoryService = processEngine.getRepositoryService();
DeploymentBuilder deploymentBuilder =
repositoryService
.createDeployment()
.enableDuplicateFiltering(false)
.name(deploymentName)
.tenantId(deploymentTenantId);
for (Resource resource : deploymentResources) {
String resourceName = null;
if (resource instanceof ContextResource) {
resourceName = ((ContextResource) resource).getPathWithinContext();
} else if (resource instanceof ByteArrayResource) {
resourceName = resource.getDescription();
} else {
try {
resourceName = resource.getFile().getAbsolutePath();
} catch (IOException e) {
resourceName = resource.getFilename();
}
}
try {
if (resourceName.endsWith(".bar")
|| resourceName.endsWith(".zip")
|| resourceName.endsWith(".jar")) {
deploymentBuilder.addZipInputStream(new ZipInputStream(resource.getInputStream()));
} else {
deploymentBuilder.addInputStream(resourceName, resource.getInputStream());
}
} catch (IOException e) {
throw new ProcessEngineException(
"couldn't auto deploy resource '" + resource + "': " + e.getMessage(), e);
}
}
deploymentBuilder.deploy();
}
}
/**
* 设置BaseNames。
*
* @param baseNames String[]
*/
public void setBaseNames(String[] baseNames) {
List<String> baseNameList = new ArrayList<String>();
try {
for (String baseName : baseNames) {
Resource[] resources = resolver.getResources(baseName);
for (Resource resource : resources) {
String fileName = resource.getURI().toString();
baseNameList.add(fileName.substring(0, fileName.indexOf(PROPERTY_POSTFIX)));
if (log.isInfoEnabled()) {
log.info("Add properties file: [" + resource.getDescription() + "]");
}
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
this.rMessageSource.setCacheSeconds(this.getCacheMillis());
this.rMessageSource.setBasenames(baseNameList.toArray(new String[baseNameList.size()]));
}
/**
* Reads all of the resource files under the specified path and returns a sequence of String
* arrays. The resource files are specified as comma-separated values. Each row in a resource file
* is one element of the resulting list.
*
* @param suffix filename suffix. Matches against files with this suffix in their filename.
* @return list of String[] elements that represent CSV values
*/
public static List<String[]> readProperties(String suffix) {
List<String[]> result = new ArrayList<>();
try {
String locationPattern = "classpath*:plugins/*" + suffix;
Resource[] resources = resolver.getResources(locationPattern);
for (Resource resource : resources) {
log.debug("readProperties found resource {}", resource);
String filename = resource.getDescription();
InputStreamReader reader = new InputStreamReader(resource.getInputStream());
try (CsvListReader csvParser = new CsvListReader(reader, csvParserOptions)) {
List<String> next;
while ((next = csvParser.read()) != null) {
result.add(next.toArray(new String[next.size()]));
}
} catch (SuperCsvException e) {
log.warn("In " + filename + ", " + e);
}
}
} catch (IOException e) {
log.error(e.toString());
}
return result;
}
public QueryReader(final Resource queryResource) {
this.queryResource = queryResource;
LOGGER.info("Using queries in: {}", queryResource.getDescription());
}
@Override
public String getDescription() {
return delegate.getDescription();
}
/**
* Load the profile-specific properties from the specified resource (if any) and add it as the
* first source.
*
* @param resource the source resource (may be {@code null}).
* @param profile a specific profile to load or {@code null} to load the default.
* @return the loaded property source or {@code null}
* @throws IOException if the source cannot be loaded
*/
public PropertySource<?> load(Resource resource, String profile) throws IOException {
return load(resource, resource.getDescription(), profile);
}
