WmixContextLoaderListener.java 文件源码

/**
 * @param componentsConfig
 * @param servletContext2
 * @return
 */
private Map<String, String> findComponents(
    ComponentsConfig componentsConfig, ServletContext servletContext) {
    String locationPattern = componentsConfig.getDiscoveryLocationPattern();
    String[] prefixAndPattern = checkComponentConfigurationLocationPattern(locationPattern);
    String prefix = prefixAndPattern[0];
    String pathPattern = prefixAndPattern[1];

    Map<String, String> componentNamesAndLocations = new TreeMap<String, String>();
    if(componentsConfig.isAutoDiscovery()){
        try {
            ResourcePatternResolver resolver = new ServletContextResourcePatternResolver(servletContext);
            Resource[] componentConfigurations = resolver.getResources(locationPattern);
            Pattern pattern = PathNameWildcardCompiler.compilePathName(pathPattern);
            if (componentConfigurations != null) {
                for (Resource resource : componentConfigurations) {
                    String path = resource.getURL().getPath();
                    Matcher matcher = pattern.matcher(path);

                    Assert.assertTrue(matcher.find(), "unknown component configuration file: %s", path);
                    String componentName = StringUtils.trimToNull(matcher.group(1));

                    if (componentName != null) {
                        componentNamesAndLocations.put(componentName,
                                                       prefix + pathPattern.replace("*", componentName));
                    }
                }
            }

        } catch (IOException e) {
            throw new RuntimeException(e);
        }

    }
    return componentNamesAndLocations;
}