Examples with SimpleResource org.nutz.resource.impl.SimpleResource used on opensource projects

Example 1 with SimpleResource

use of org.nutz.resource.impl.SimpleResource in project nutz by nutzam.

the class Scans method scan.

/**
     * 在磁盘目录或者 CLASSPATH(包括 jar) 中搜索资源
     * <p/>
     * <b>核心方法</b>
     * 
     * @param src
     *            起始路径
     * @param regex
     *            资源名需要匹配的正则表达式
     * @return 资源列表
     */
public List<NutResource> scan(String src, String regex) {
    if (src.isEmpty())
        throw new RuntimeException("emtry src is NOT allow");
    if ("/".equals(src))
        throw new RuntimeException("root path is NOT allow");
    List<NutResource> list = new ArrayList<NutResource>();
    Pattern pattern = regex == null ? null : Pattern.compile(regex);
    // 先看看是不是文件系统上一个具体的文件
    if (src.startsWith("~/"))
        src = Disks.normalize(src);
    File srcFile = new File(src);
    if (srcFile.exists()) {
        if (srcFile.isDirectory()) {
            Disks.visitFile(srcFile, new ResourceFileVisitor(list, src), new ResourceFileFilter(pattern));
        } else {
            list.add(new FileResource(src, srcFile));
        }
    }
    for (ResourceLocation location : locations.values()) {
        location.scan(src, pattern, list);
    }
    // 如果啥都没找到,那么,用增强扫描
    if (list.isEmpty()) {
        try {
            Enumeration<URL> enu = ClassTools.getClassLoader().getResources(src);
            if (enu != null && enu.hasMoreElements()) {
                while (enu.hasMoreElements()) {
                    try {
                        URL url = enu.nextElement();
                        ResourceLocation loc = makeResourceLocation(url);
                        if (url.toString().contains("jar!"))
                            loc.scan(src, pattern, list);
                        else
                            loc.scan("", pattern, list);
                    } catch (Throwable e) {
                        if (log.isTraceEnabled())
                            log.trace("", e);
                    }
                }
            }
        } catch (Throwable e) {
            if (log.isDebugEnabled())
                log.debug("Fail to run deep scan!", e);
        }
        // 依然是空?
        if (list.isEmpty()) {
            try {
                InputStream ins = getClass().getClassLoader().getResourceAsStream(src);
                if (ins != null) {
                    list.add(new SimpleResource(src, src, ins));
                }
            } catch (Exception e) {
            }
        }
    }
    Collections.sort(list);
    if (log.isDebugEnabled())
        log.debugf("Found %s resource by src( %s ) , regex( %s )", list.size(), src, regex);
    return list;
}