Example usage for org.springframework.core.io ClassPathResource createRelative

Introduction

In this page you can find the example usage for org.springframework.core.io ClassPathResource createRelative.

Prototype

@Override
public Resource createRelative(String relativePath) 

Source Link

Document

This implementation creates a ClassPathResource, applying the given path relative to the path of the underlying resource of this descriptor.

Usage

From source file:org.shept.util.JarUtils.java

/**
 * Copy resources from a classPath, typically within a jar file 
 * to a specified destination, typically a resource directory in
 * the projects webApp directory (images, sounds, e.t.c. )
 * /*from  w  w  w.  ja  v a2 s  . c o m*/
 * Copies resources only if the destination file does not exist and
 * the specified resource is available.
 * 
 * @param resources Array of String resources (filenames) to be copied
 * @param cpr ClassPathResource specifying the source location on the classPath (maybe within a jar)
 * @param webAppDestPath Full path String to the fileSystem destination directory   
 * @throws IOException when copying on copy error
 */
public static void copyResources(String[] resources, ClassPathResource cpr, String webAppDestPath)
        throws IOException {
    String dstPath = webAppDestPath; //  + "/" + jarPathInternal(cpr.getURL());
    File dir = new File(dstPath);
    dir.mkdirs();
    for (int i = 0; i < resources.length; i++) {
        File dstFile = new File(dstPath, resources[i]); //    (StringUtils.applyRelativePath(dstPath, images[i]));
        Resource fileRes = cpr.createRelative(resources[i]);
        if (!dstFile.exists() && fileRes.exists()) {
            FileOutputStream fos = new FileOutputStream(dstFile);
            FileCopyUtils.copy(fileRes.getInputStream(), fos);
            logger.info("Successfully copied file " + fileRes.getFilename() + " from " + cpr.getPath() + " to "
                    + dstFile.getPath());
        }
    }
}

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From source file:org.shept.util.JarUtils.java

/**
 * Copy resources from a classPath, typically within a jar file 
 * to a specified destination, typically a resource directory in
 * the projects webApp directory (images, sounds, e.t.c. )
 * /*w  w w  . j  a v a 2  s  .  c  o  m*/
 * Copies resources only if the destination file does not exist and
 * the specified resource is available.
 * 
 * The ClassPathResource will be scanned for all resources in the path specified by the resource.
 * For example  a path like:
 *    new ClassPathResource("resource/images/pager/", SheptBaseController.class);
 * takes all the resources in the path 'resource/images/pager' (but not in sub-path)
 * from the specified clazz 'SheptBaseController'
 * 
 * @param cpr ClassPathResource specifying the source location on the classPath (maybe within a jar)
 * @param webAppDestPath Full path String to the fileSystem destination directory   
 * @throws IOException when copying on copy error
 * @throws URISyntaxException 
 */
public static void copyResources(ClassPathResource cpr, String webAppDestPath)
        throws IOException, URISyntaxException {
    String dstPath = webAppDestPath; //  + "/" + jarPathInternal(cpr.getURL());
    File dir = new File(dstPath);
    dir.mkdirs();

    URL url = cpr.getURL();
    // jarUrl is the URL of the containing lib, e.g. shept.org in this case
    URL jarUrl = ResourceUtils.extractJarFileURL(url);
    String urlFile = url.getFile();
    String resPath = "";
    int separatorIndex = urlFile.indexOf(ResourceUtils.JAR_URL_SEPARATOR);
    if (separatorIndex != -1) {
        // just copy the the location path inside the jar without leading separators !/
        resPath = urlFile.substring(separatorIndex + ResourceUtils.JAR_URL_SEPARATOR.length());
    } else {
        return; // no resource within jar to copy
    }

    File f = new File(ResourceUtils.toURI(jarUrl));
    JarFile jf = new JarFile(f);

    Enumeration<JarEntry> entries = jf.entries();
    while (entries.hasMoreElements()) {
        JarEntry entry = entries.nextElement();
        String path = entry.getName();
        if (path.startsWith(resPath) && entry.getSize() > 0) {
            String fileName = path.substring(path.lastIndexOf("/"));
            File dstFile = new File(dstPath, fileName); //  (StringUtils.applyRelativePath(dstPath, fileName));
            Resource fileRes = cpr.createRelative(fileName);
            if (!dstFile.exists() && fileRes.exists()) {
                FileOutputStream fos = new FileOutputStream(dstFile);
                FileCopyUtils.copy(fileRes.getInputStream(), fos);
                logger.info("Successfully copied file " + fileName + " from " + cpr.getPath() + " to "
                        + dstFile.getPath());
            }
        }
    }

    if (jf != null) {
        jf.close();
    }

}

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