Examples with Content v7db.files.spi.Content used on opensource projects

Example 1 with Content

use of v7db.files.spi.Content in project v7files by thiloplanz.

the class ZipFile method index.

/**
 * index all individual files found in a zip archive already in storage
 *
 * @throws IOException
 */
public static final void index(ContentStorage storage, ContentPointer zipFile) throws IOException {
    Content zip = storage.getContent(zipFile);
    if (zip == null)
        throw new IllegalArgumentException("invalid ContentPointer " + zipFile);
    File tmp = File.createTempFile("v7files_zipfile_extractfile_", ".zip");
    try {
        OutputStream f = new FileOutputStream(tmp);
        IOUtils.copy(zip.getInputStream(), f);
        f.close();
        // open up the zip file
        HeaderReader r = new HeaderReader(new RandomAccessFile(tmp, "r"));
        ZipModel model = r.readAllHeaders();
        model.setZipFile(tmp.getAbsolutePath());
        Map<String, Object> map = zipFile.serialize();
        List<?> fhs = model.getCentralDirectory().getFileHeaders();
        for (Object _fh : fhs) {
            FileHeader fh = (FileHeader) _fh;
            UnzipEngine en = new UnzipEngine(model, fh);
            // this will read the local file header
            en.getInputStream();
            LocalFileHeader lh = en.getLocalFileHeader();
            store(storage, map, fh, lh);
        }
    } catch (ZipException e) {
        throw new IllegalArgumentException("ContentPointer does not refer to a zip file: " + zipFile, e);
    } finally {
        tmp.delete();
    }
}

Example 2 with Content

use of v7db.files.spi.Content in project v7files by thiloplanz.

the class ZipFile method extractFile.

/**
 * find the data indicated by the ContentPointer, treats it as a zip
 * archive, extracts the named file inside the archive, stores a reference
 * to it in the ContentStorage and returns a ContentPointer to it.
 *
 * @throws FileNotFoundException
 *             if the archive exists, but does not contain the named file
 * @throws IllegalArgumentException
 *             if the ContentPointer does not refer to a zip archive
 */
public static final ContentPointer extractFile(ContentStorage storage, ContentPointer zipFile, String fileName) throws IOException {
    Content zip = storage.getContent(zipFile);
    if (zip == null)
        throw new IllegalArgumentException("invalid ContentPointer " + zipFile);
    File tmp = File.createTempFile("v7files_zipfile_extractfile_", ".zip");
    try {
        OutputStream f = new FileOutputStream(tmp);
        IOUtils.copy(zip.getInputStream(), f);
        f.close();
        // open up the zip file
        HeaderReader r = new HeaderReader(new RandomAccessFile(tmp, "r"));
        ZipModel model = r.readAllHeaders();
        model.setZipFile(tmp.getAbsolutePath());
        List<?> fhs = model.getCentralDirectory().getFileHeaders();
        for (Object _fh : fhs) {
            FileHeader fh = (FileHeader) _fh;
            if (fileName.equals(fh.getFileName())) {
                UnzipEngine en = new UnzipEngine(model, fh);
                // this will read the local file header
                en.getInputStream();
                LocalFileHeader lh = en.getLocalFileHeader();
                return store(storage, zipFile.serialize(), fh, lh);
            }
        }
    } catch (ZipException e) {
        throw new IllegalArgumentException("ContentPointer does not refer to a zip file: " + zipFile, e);
    } finally {
        tmp.delete();
    }
    throw new FileNotFoundException("ContentPointer does not contain " + fileName + ": " + zipFile);
}

Example 3 with Content

use of v7db.files.spi.Content in project v7files by thiloplanz.

the class BucketsServlet method doEchoPutGet.

private void doEchoPutGet(HttpServletRequest request, HttpServletResponse response, BSONObject bucket, byte[] sha) throws IOException {
    Content content = storage.getContent(sha);
    if (content == null) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND, "Bucket '" + bucket.get("_id") + "' does not have a file matching digest '" + Hex.encodeHexString(sha) + "'");
        return;
    }
    BSONObject file = new BasicBSONObject("sha", sha);
    String customFilename = request.getParameter("filename");
    if (StringUtils.isNotBlank(customFilename))
        file.put("filename", customFilename);
    sendFile(request, response, sha, file, content);
}

Example 4 with Content

use of v7db.files.spi.Content in project v7files by thiloplanz.

the class MongoContentStorage method getContent.

public Content getContent(ContentPointer pointer) throws IOException {
    if (pointer == null)
        return null;
    if (pointer instanceof InlineContent)
        return (Content) pointer;
    if (pointer instanceof ContentSHA) {
        ContentSHA p = (ContentSHA) pointer;
        byte[] sha = p.getSHA();
        Content base = getContent(sha);
        if (base == null)
            throw new IllegalArgumentException("base SHA not found: " + Hex.encodeHexString(sha));
        return base;
    }
    if (pointer instanceof StoredContent) {
        StoredContent p = (StoredContent) pointer;
        byte[] sha = p.getBaseSHA();
        Content base = getContent(sha);
        if (base == null)
            throw new IllegalArgumentException("base SHA not found: " + Hex.encodeHexString(sha));
        if (p.getLength() != base.getLength()) {
            return new OffsetAndLength(base, 0, p.getLength());
        }
        return base;
    }
    throw new IllegalArgumentException(pointer.getClass().toString());
}

Example 5 with Content

use of v7db.files.spi.Content in project v7files by thiloplanz.

the class CatCommand method main.

public static void main(String[] args) throws MongoException, IOException {
    if (args.length != 3) {
        System.err.println("Output the contents of a file:");
        System.err.println("  by name:   cat <root> <path>");
        System.err.println("  by hash:   cat -sha <shaHex>");
        System.exit(1);
    }
    if ("-sha".equals(args[1])) {
        MongoContentStorage storage = new MongoContentStorage(Configuration.getMongo().getDB(Configuration.getProperty("mongo.db")));
        String sha = args[2];
        try {
            Content file = findContentByPrefix(storage, sha);
            if (file == null) {
                System.err.println("file not found");
                System.exit(1);
            }
            IOUtils.copy(file.getInputStream(), System.out);
        } catch (DecoderException e) {
            System.err.println("invalid parameter :" + sha + " is not a hex-encoded SHA-1 prefix");
            System.exit(1);
        }
    } else {
        V7GridFS fs = new V7GridFS(Configuration.getMongo().getDB(Configuration.getProperty("mongo.db")));
        String root = args[1];
        String path = args[2];
        String[] fullPath = ArrayUtils.add(StringUtils.split(path, '/'), 0, root);
        V7File file = fs.getFile(fullPath);
        if (file == null) {
            System.err.println("file not found");
            System.exit(1);
        }
        IOUtils.copy(file.getInputStream(), System.out);
    }
}