Examples with DocuDirectory digilib.io.DocuDirectory used on opensource projects

Example 6 with DocuDirectory

use of digilib.io.DocuDirectory in project digilib by robcast.

the class DocumentBean method setRequest.

/**
 * Sets the current DigilibRequest. Also completes information in the request.
 *
 * @param dlRequest
 *            The dlRequest to set.
 */
public void setRequest(DigilibServletRequest dlRequest) throws Exception {
    this.dlRequest = dlRequest;
    if (dirCache == null) {
        return;
    }
    String fn = dlRequest.getFilePath();
    // get information about the file
    ImageSet fileset = (ImageSet) dirCache.getFile(fn, dlRequest.getAsInt("pn"));
    if (fileset == null) {
        return;
    }
    // add file name
    dlRequest.setValue("img.fn", fileset);
    // add dpi
    dlRequest.setValue("img.dpix", new Double(fileset.getResX()));
    dlRequest.setValue("img.dpiy", new Double(fileset.getResY()));
    // get number of pages in directory
    DocuDirectory dd = dirCache.getDirectory(fn);
    if (dd != null) {
        // add pt
        dlRequest.setValue("pt", dd.size());
    }
    // get original pixel size
    ImageInput origfile = fileset.getBiggest();
    // check image for size (TODO: just if mo=hires?)
    ImageSize pixsize = origfile.getSize();
    if (pixsize != null) {
        // add pixel size
        dlRequest.setValue("img.pix_x", new Integer(pixsize.getWidth()));
        dlRequest.setValue("img.pix_y", new Integer(pixsize.getHeight()));
    }
}

Example 7 with DocuDirectory

use of digilib.io.DocuDirectory in project digilib by robcast.

the class Manifester method getLastModified.

/**
 * Returns modification time relevant to the request for caching.
 *
 * @see javax.servlet.http.HttpServlet#getLastModified(javax.servlet.http.HttpServletRequest)
 */
public long getLastModified(HttpServletRequest request) {
    accountlog.debug("GetLastModified from " + request.getRemoteAddr() + " for " + request.getQueryString());
    long mtime = -1;
    try {
        // create new digilib request
        DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig, EnumSet.of(ParsingOption.omitIiifImageApi));
        // get list of IIIF parameters
        @SuppressWarnings("unchecked") List<String> iiifParams = (List<String>) dlRequest.getValue("request.iiif.elements");
        // get identifier (first parameter)
        String identifier = iiifParams.get(0);
        // decode identifier to file path
        dlRequest.setValueFromString("fn", dlRequest.decodeIiifIdentifier(identifier));
        DocuDirectory dd = dirCache.getDirectory(dlRequest.getFilePath());
        if (dd != null) {
            // return rounded modification date of directory
            mtime = dd.getDirMTime() / 1000 * 1000;
        }
    } catch (Exception e) {
        logger.error("error in getLastModified: " + e.getMessage());
    }
    logger.debug("  returns " + mtime);
    return mtime;
}

Example 8 with DocuDirectory

use of digilib.io.DocuDirectory in project digilib by robcast.

the class Manifester method processRequest.

protected void processRequest(HttpServletRequest request, HttpServletResponse response) {
    try {
        // create DigilibRequest from ServletRequest, omit IIIF Image API parsing
        DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig, EnumSet.of(ParsingOption.omitIiifImageApi));
        // get list of IIIF parameters
        @SuppressWarnings("unchecked") List<String> iiifParams = (List<String>) dlRequest.getValue("request.iiif.elements");
        if (iiifParams == null) {
            logger.error("Invalid IIIF request.");
            response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Invalid IIIF request.");
            return;
        }
        // get identifier (first parameter)
        // allow empty identifier for image root dir
        String identifier = "";
        if (iiifParams.size() > 0) {
            identifier = iiifParams.get(0);
        }
        // decode identifier to file path
        dlRequest.setValueFromString("fn", dlRequest.decodeIiifIdentifier(identifier));
        // get directory path
        String dlFn = dlRequest.getFilePath();
        // get information about the directory
        DocuDirectory dlDir = dirCache.getDirectory(dlFn);
        if (dlDir == null) {
            logger.error("Directory for manifest not found: " + dlFn);
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        // check for existing manifest file
        File mfFile = new File(dlDir.getDir(), "manifest.json");
        // check for image files
        if ((dlDir.size() == 0) && !mfFile.canRead()) {
            logger.debug("Directory has no files: " + dlFn);
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        ManifestParams params = new ManifestParams();
        /*
			 * set CORS header ACAO "*" for info response as per IIIF spec
			 */
        if (corsForInfoRequests) {
            String origin = request.getHeader("Origin");
            if (origin != null) {
                response.setHeader("Access-Control-Allow-Origin", "*");
            }
        }
        /*
             * check permissions
             */
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException("Access denied!");
            }
        }
        // use JSON-LD content type only when asked
        String accept = request.getHeader("Accept");
        if (accept != null && accept.contains("application/ld+json")) {
            response.setContentType("application/ld+json");
        } else {
            response.setContentType("application/json");
        }
        if (mfFile.canRead()) {
            // send manifest file
            ServletOps.sendFile(mfFile, "", "", response);
            return;
        }
        // check for manifest-meta.json file with additional metadata
        File mfMetaFile = new File(dlDir.getDir(), "manifest-meta.json");
        if (mfMetaFile.canRead()) {
            params.mfMetaFile = mfMetaFile;
        }
        /*
			 * configure base URLs for manifest
			 */
        params.imgApiUrl = dlConfig.getAsString("iiif-image-base-url");
        String manifestBaseUrl = dlConfig.getAsString("iiif-manifest-base-url");
        if ("".equals(params.imgApiUrl) || "".equals(manifestBaseUrl)) {
            // try to figure out base URLs
            String servletBaseUrl = dlConfig.getAsString("webapp-base-url");
            if ("".equals(servletBaseUrl)) {
                String url = request.getRequestURL().toString();
                // get base URL for web application by last occurrence of Servlet path
                int srvPathLen = url.lastIndexOf(request.getServletPath());
                servletBaseUrl = url.substring(0, srvPathLen);
            }
            // manifest base URL
            manifestBaseUrl = servletBaseUrl + request.getServletPath() + "/" + dlConfig.getAsString("iiif-prefix");
            // Image API base URL
            params.imgApiUrl = servletBaseUrl + "/" + this.scalerServletPath + "/" + dlConfig.getAsString("iiif-prefix");
        }
        // full manifest URL with identifier
        params.manifestUrl = manifestBaseUrl + "/" + identifier;
        params.identifier = identifier;
        params.docuDir = dlDir;
        /*
			 * start json representation
			 */
        ServletOutputStream out = response.getOutputStream();
        JsonGenerator manifest = Json.createGenerator(out).writeStartObject();
        /*
			 * manifest metadata
			 */
        writeManifestMeta(manifest, dlFn, params);
        /*
			 * sequences
			 */
        writeSequences(manifest, params);
        // manifest
        manifest.writeEnd();
        manifest.close();
    } catch (IOException e) {
        logger.error("ERROR sending manifest: ", e);
    } catch (ImageOpException e) {
        logger.error("ERROR sending manifest: ", e);
    } catch (AuthOpException e) {
        logger.debug("Permission denied.");
        try {
            response.sendError(HttpServletResponse.SC_FORBIDDEN);
        } catch (IOException e1) {
            logger.error("Error sending error: ", e);
        }
    }
}

Example 9 with DocuDirectory

use of digilib.io.DocuDirectory in project digilib by robcast.

the class PDFRequest method setWithRequest.

/**
 * Read the request object.
 *
 * @param request
 * @throws ImageOpException
 * @throws IOException
 */
public void setWithRequest(HttpServletRequest request) throws IOException, ImageOpException {
    // read matching request parameters for the parameters in this map
    for (String k : params.keySet()) {
        if (request.getParameterMap().containsKey(k)) {
            setValueFromString(k, request.getParameter(k));
        }
    }
    // process parameters
    pages = new NumRange(getAsString("pgs"));
    ImageJobDescription ij = ImageJobDescription.getInstance(this, dlConfig);
    DocuDirectory dir = ij.getFileDirectory();
    int dirsize = dir.size();
    pages.setMaxnum(dirsize);
}

Example 10 with DocuDirectory

use of digilib.io.DocuDirectory in project digilib by robcast.

the class Scaler method getLastModified.

/**
 * Returns modification time relevant to the request for caching.
 *
 * @see javax.servlet.http.HttpServlet#getLastModified(javax.servlet.http.HttpServletRequest)
 */
public long getLastModified(HttpServletRequest request) {
    accountlog.debug("GetLastModified from " + request.getRemoteAddr() + " for " + request.getQueryString());
    long mtime = -1;
    try {
        // create new digilib request
        DigilibServletRequest dlReq = new DigilibServletRequest(request, dlConfig);
        DocuDirectory dd = dirCache.getDirectory(dlReq.getFilePath());
        if (dd != null) {
            mtime = dd.getDirMTime() / 1000 * 1000;
        }
    } catch (Exception e) {
        logger.error("error in getLastModified: " + e.getMessage());
    }
    logger.debug("  returns " + mtime);
    return mtime;
}