Examples with MCRPath org.mycore.datamodel.niofs.MCRPath used on opensource projects

Example 86 with MCRPath

use of org.mycore.datamodel.niofs.MCRPath in project mycore by MyCoRe-Org.

the class MCRMetsSave method updateFiles.

/**
 * Call this method to update the mets.xml if files of the derivate have changed. Files will be added or removed
 * from the mets:fileSec and mets:StructMap[@type=PHYSICAL]. The mets:structLink part will be rebuild after.
 *
 * <p>This method takes care of the group assignment. For example: image files will be added to the MASTER
 * group and ALTO files to the ALTO group. It will also bundle files with the same name e.g. sample1.tiff and
 * alto/sample1.xml to the same physical struct map div.</p>
 *
 * <p><b>Important:</b> This method does not update the mets.xml in the derivate, its just updating the given mets
 * instance.</p>
 *
 * @param mets the mets to update
 * @param derivatePath path to the derivate -&gt; required for looking up new files
 * @throws IOException derivate couldn't be read
 */
public static void updateFiles(Mets mets, final MCRPath derivatePath) throws IOException {
    List<String> metsFiles = mets.getFileSec().getFileGroups().stream().flatMap(g -> g.getFileList().stream()).map(File::getFLocat).map(FLocat::getHref).collect(Collectors.toList());
    List<String> derivateFiles = Files.walk(derivatePath).filter(MCRStreamUtils.not(Files::isDirectory)).map(MCRPath::toMCRPath).map(MCRPath::getOwnerRelativePath).map(path -> path.substring(1)).filter(href -> !"mets.xml".equals(href)).collect(Collectors.toList());
    ArrayList<String> removedFiles = new ArrayList<>(metsFiles);
    removedFiles.removeAll(derivateFiles);
    ArrayList<String> addedFiles = new ArrayList<>(derivateFiles);
    Collections.sort(addedFiles);
    addedFiles.removeAll(metsFiles);
    StructLink structLink = mets.getStructLink();
    PhysicalStructMap physicalStructMap = mets.getPhysicalStructMap();
    List<String> unlinkedLogicalIds = new ArrayList<>();
    // remove files
    PhysicalDiv physicalDiv = physicalStructMap.getDivContainer();
    removedFiles.forEach(href -> {
        File file = null;
        // remove from fileSec
        for (FileGrp grp : mets.getFileSec().getFileGroups()) {
            file = grp.getFileByHref(href);
            if (file != null) {
                grp.removeFile(file);
                break;
            }
        }
        if (file == null) {
            return;
        }
        // remove from physical
        PhysicalSubDiv physicalSubDiv = physicalDiv.byFileId(file.getId());
        physicalSubDiv.remove(physicalSubDiv.getFptr(file.getId()));
        if (physicalSubDiv.getChildren().isEmpty()) {
            physicalDiv.remove(physicalSubDiv);
        }
        // remove from struct link
        structLink.getSmLinkByTo(physicalSubDiv.getId()).forEach(smLink -> {
            structLink.removeSmLink(smLink);
            if (structLink.getSmLinkByFrom(smLink.getFrom()).isEmpty()) {
                unlinkedLogicalIds.add(smLink.getFrom());
            }
        });
    });
    // fix unlinked logical divs
    if (!unlinkedLogicalIds.isEmpty()) {
        // get first physical div
        List<PhysicalSubDiv> physicalChildren = physicalStructMap.getDivContainer().getChildren();
        String firstPhysicalID = physicalChildren.isEmpty() ? physicalStructMap.getDivContainer().getId() : physicalChildren.get(0).getId();
        // a logical div is not linked anymore -> link with first physical div
        unlinkedLogicalIds.forEach(from -> structLink.addSmLink(new SmLink(from, firstPhysicalID)));
    }
    // get last logical div
    LogicalDiv divContainer = mets.getLogicalStructMap().getDivContainer();
    List<LogicalDiv> descendants = divContainer.getDescendants();
    LogicalDiv lastLogicalDiv = descendants.isEmpty() ? divContainer : descendants.get(descendants.size() - 1);
    // add files
    addedFiles.forEach(href -> {
        MCRPath filePath = (MCRPath) derivatePath.resolve(href);
        String fileBase = getFileBase(href);
        try {
            String fileGroupUse = MCRMetsSave.getFileGroupUse(filePath);
            // build file
            String mimeType = MCRContentTypes.probeContentType(filePath);
            String fileId = fileGroupUse.toLowerCase(Locale.ROOT) + "_" + fileBase;
            File file = new File(fileId, mimeType);
            file.setFLocat(new FLocat(LOCTYPE.URL, href));
            // fileSec
            FileGrp fileGroup = mets.getFileSec().getFileGroup(fileGroupUse);
            if (fileGroup == null) {
                fileGroup = new FileGrp(fileGroupUse);
                mets.getFileSec().addFileGrp(fileGroup);
            }
            fileGroup.addFile(file);
            // structMap physical
            String existingFileID = mets.getFileSec().getFileGroups().stream().filter(grp -> !grp.getUse().equals(fileGroupUse)).flatMap(grp -> grp.getFileList().stream()).filter(brotherFile -> fileBase.equals(getFileBase(brotherFile.getFLocat().getHref()))).map(File::getId).findAny().orElse(null);
            PhysicalSubDiv physicalSubDiv;
            if (existingFileID != null) {
                // there is a file (e.g. img or alto) which the same file base -> add the file to this mets:div
                physicalSubDiv = physicalDiv.byFileId(existingFileID);
                physicalSubDiv.add(new Fptr(file.getId()));
            } else {
                // there is no mets:div with this file
                physicalSubDiv = new PhysicalSubDiv(PhysicalSubDiv.ID_PREFIX + fileBase, PhysicalSubDiv.TYPE_PAGE);
                physicalSubDiv.add(new Fptr(file.getId()));
                physicalDiv.add(physicalSubDiv);
            }
            // add to struct link
            structLink.addSmLink(new SmLink(lastLogicalDiv.getId(), physicalSubDiv.getId()));
        } catch (Exception exc) {
            LOGGER.error("Unable to add file {} to mets.xml of {}", href, derivatePath.getOwner(), exc);
        }
    });
}

Example 87 with MCRPath

use of org.mycore.datamodel.niofs.MCRPath in project mycore by MyCoRe-Org.

the class MCRMigrationCommands method tryRawPath.

private static boolean tryRawPath(MCRObjectID objectID, Element derivateLinkElement, String href, MCRMetaDerivateLink link, String owner) {
    String rawPath = link.getRawPath();
    MCRPath mcrPath = MCRPath.getPath(owner, rawPath);
    if (Files.exists(mcrPath)) {
        // path exists -> do URI encoding for href
        try {
            String encodedHref = MCRXMLFunctions.encodeURIPath(rawPath);
            derivateLinkElement.setAttribute("href", owner + encodedHref, MCRConstants.XLINK_NAMESPACE);
            return true;
        } catch (URISyntaxException uriEncodeException) {
            LOGGER.error("Unable to encode {} for object {}", rawPath, objectID, uriEncodeException);
            return false;
        }
    }
    return false;
}

Example 88 with MCRPath

use of org.mycore.datamodel.niofs.MCRPath in project mycore by MyCoRe-Org.

the class MCRDFGLinkServlet method doGetPost.

@Override
protected void doGetPost(MCRServletJob job) throws Exception {
    HttpServletRequest request = job.getRequest();
    HttpServletResponse response = job.getResponse();
    String filePath = request.getParameter("file") == null ? "" : request.getParameter("file");
    String derivateID = request.getParameter("deriv") == null ? "" : request.getParameter("deriv");
    if (derivateID.equals("")) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Derivate is not set");
    }
    String encodedMetsURL = URLEncoder.encode(MCRServlet.getServletBaseURL() + "MCRMETSServlet/" + derivateID + "?XSL.Style=dfg", "UTF-8");
    LOGGER.info(request.getPathInfo());
    MCRPath rootPath = MCRPath.getPath(derivateID, "/");
    if (!Files.isDirectory(rootPath)) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND, MessageFormat.format("Derivate {0} does not exist.", derivateID));
        return;
    }
    request.setAttribute("XSL.derivateID", derivateID);
    Collection<String> linkList = MCRLinkTableManager.instance().getSourceOf(derivateID);
    if (linkList.isEmpty()) {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, MessageFormat.format("Derivate {0} is not linked with a MCRObject. Please contact an administrator.", derivateID));
        return;
    }
    // TODO: this seems very very wrong
    if (filePath == "") {
        MCRDerivate derivate = MCRMetadataManager.retrieveMCRDerivate(MCRObjectID.getInstance(derivateID));
        filePath = derivate.getDerivate().getInternals().getMainDoc();
    }
    MCRPath metsPath = (MCRPath) rootPath.resolve("mets.xml");
    int imageNumber = -2;
    if (Files.exists(metsPath)) {
        imageNumber = getOrderNumber(new MCRPathContent(metsPath).asXML(), filePath);
    } else {
        MCRContent metsContent = getMetsSource(job, useExistingMets(request), derivateID);
        imageNumber = getOrderNumber(metsContent.asXML(), filePath);
    }
    String dfgURL = "";
    switch(imageNumber) {
        case -1:
            response.sendError(HttpServletResponse.SC_CONFLICT, MessageFormat.format("Image \"{0}\" not found in the MCRDerivate. Please contact an administrator.", filePath));
            return;
        case -2:
            dfgURL = "http://dfg-viewer.de/show/?set[mets]=" + encodedMetsURL;
            break;
        default:
            dfgURL = "http://dfg-viewer.de/show/?set[mets]=" + encodedMetsURL + "&set[image]=" + imageNumber;
            break;
    }
    response.sendRedirect(dfgURL);
}

Example 89 with MCRPath

use of org.mycore.datamodel.niofs.MCRPath in project mycore by MyCoRe-Org.

the class MCRDFGLinkServlet method getMetsSource.

/**
 * Returns the mets document wrapped in a {@link MCRContent} object.
 *
 * @param job
 * @param useExistingMets
 * @return
 * @throws Exception
 */
private static MCRContent getMetsSource(MCRServletJob job, boolean useExistingMets, String derivate) throws Exception {
    MCRPath metsFile = MCRPath.getPath(derivate, "/mets.xml");
    try {
        job.getRequest().setAttribute("XSL.derivateID", derivate);
        job.getRequest().setAttribute("XSL.objectID", MCRLinkTableManager.instance().getSourceOf(derivate).iterator().next());
    } catch (Exception x) {
        LOGGER.warn("Unable to set \"XSL.objectID\" attribute to current request", x);
    }
    boolean metsExists = Files.exists(metsFile);
    if (metsExists && useExistingMets) {
        MCRContent content = new MCRPathContent(metsFile);
        content.setDocType("mets");
        return content;
    } else {
        Document mets = MCRMETSGeneratorFactory.create(metsFile.getParent()).generate().asDocument();
        return new MCRJDOMContent(mets);
    }
}

Example 90 with MCRPath

use of org.mycore.datamodel.niofs.MCRPath in project mycore by MyCoRe-Org.

the class MCRMETSServlet method getMetsSource.

/**
 * Returns the mets document wrapped in a {@link MCRContent} object.
 */
static MCRContent getMetsSource(MCRServletJob job, boolean useExistingMets, String derivate) throws Exception {
    MCRPath metsPath = MCRPath.getPath(derivate, "/mets.xml");
    try {
        job.getRequest().setAttribute("XSL.derivateID", derivate);
        String objectid = MCRLinkTableManager.instance().getSourceOf(derivate).iterator().next();
        if (objectid == null || objectid.length() == 0) {
            MCRDerivate derObj = MCRMetadataManager.retrieveMCRDerivate(MCRObjectID.getInstance(derivate));
            MCRObjectID ownerID = derObj.getOwnerID();
            objectid = ownerID.toString();
        }
        job.getRequest().setAttribute("XSL.objectID", objectid);
    } catch (Exception x) {
        LOGGER.warn("Unable to set \"XSL.objectID\" attribute to current request", x);
    }
    boolean metsExists = Files.exists(metsPath);
    if (metsExists && useExistingMets) {
        MCRContent content = new MCRPathContent(metsPath);
        content.setDocType("mets");
        return content;
    } else {
        Document mets = MCRMETSGeneratorFactory.create(MCRPath.getPath(derivate, "/")).generate().asDocument();
        if (!metsExists && STORE_METS_ON_GENERATE) {
            MCRMetsSave.saveMets(mets, MCRObjectID.getInstance(derivate));
        }
        return new MCRJDOMContent(mets);
    }
}