Examples with FLocat org.mycore.mets.model.files.FLocat used on opensource projects

Example 1 with FLocat

use of org.mycore.mets.model.files.FLocat in project mycore by MyCoRe-Org.

the class MCRDFGLinkServlet method getOrderNumber.

private static int getOrderNumber(Document metsDoc, String fileHref) {
    int orderNumber = -1;
    String fileID = null;
    try {
        Mets mets = new Mets(metsDoc);
        List<FileGrp> fileGroups = mets.getFileSec().getFileGroups();
        for (FileGrp fileGrp : fileGroups) {
            List<File> fileList = fileGrp.getFileList();
            for (File file : fileList) {
                FLocat fLocat = file.getFLocat();
                if (fLocat.getHref().equals(MCRXMLFunctions.encodeURIPath(fileHref)))
                    fileID = file.getId();
            }
        }
        if (fileID != null) {
            PhysicalStructMap structMap = (PhysicalStructMap) mets.getStructMap(PhysicalStructMap.TYPE);
            PhysicalDiv rootDiv = structMap.getDivContainer();
            List<PhysicalSubDiv> children = rootDiv.getChildren();
            for (int index = 0; index < children.size(); index++) {
                PhysicalSubDiv physicalSubDiv = children.get(index);
                List<Fptr> fptrList = physicalSubDiv.getChildren();
                for (Fptr fptr : fptrList) {
                    if (fptr.getFileId().equals(fileID))
                        orderNumber = index + 1;
                }
            }
        }
    } catch (Exception e) {
        throw new MCRPersistenceException("could not parse mets.xml", e);
    }
    return orderNumber;
}

Example 2 with FLocat

use of org.mycore.mets.model.files.FLocat in project mycore by MyCoRe-Org.

the class MCRMETSDefaultGenerator method sortFileToGrp.

private void sortFileToGrp(FileSec fileSec, Map.Entry<MCRPath, BasicFileAttributes> file, String fileID, final String href, MCRMetsFileUse fileUse) throws IOException {
    // file
    File metsFile = new File(fileID, MCRContentTypes.probeContentType(file.getKey()));
    FLocat fLocat = new FLocat(LOCTYPE.URL, href);
    metsFile.setFLocat(fLocat);
    for (FileGrp fileGrp : fileSec.getFileGroups()) {
        if (fileGrp.getUse().equalsIgnoreCase(fileUse.toString())) {
            fileGrp.addFile(metsFile);
        }
    }
}

Example 3 with FLocat

use of org.mycore.mets.model.files.FLocat in project mycore by MyCoRe-Org.

the class MCRMETSHierarchyGenerator method addFile.

private void addFile(String id, FileGrp fileGroup, MCRPath path, String mimeType) {
    File imageFile = new File(id, mimeType);
    try {
        final String href = MCRXMLFunctions.encodeURIPath(path.getOwnerRelativePath().substring(1), true);
        FLocat fLocat = new FLocat(LOCTYPE.URL, href);
        imageFile.setFLocat(fLocat);
        fileGroup.addFile(imageFile);
    } catch (URISyntaxException uriSyntaxException) {
        LOGGER.error("invalid href", uriSyntaxException);
    }
}

Example 4 with FLocat

use of org.mycore.mets.model.files.FLocat 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 5 with FLocat

use of org.mycore.mets.model.files.FLocat in project mycore by MyCoRe-Org.

the class MCRMetsSave method updateOnFileAdd.

// TODO: should use mets-model api
/**
 * Alters the mets file
 *
 * @param mets
 *            the unmodified source
 * @param file
 *            the file to add
 * @return the modified mets or null if an exception occures
 */
private static Document updateOnFileAdd(Document mets, MCRPath file) {
    try {
        // check for file existance (if a derivate with mets.xml is uploaded
        String relPath = MCRXMLFunctions.encodeURIPath(file.getOwnerRelativePath().substring(1));
        // Check if file already exists -> if yes do nothing
        String fileExistPathString = "mets:mets/mets:fileSec/mets:fileGrp/mets:file/mets:FLocat[@xlink:href='" + relPath + "']";
        XPathExpression<Element> xpath = XPathFactory.instance().compile(fileExistPathString, Filters.element(), null, MCRConstants.METS_NAMESPACE, MCRConstants.XLINK_NAMESPACE);
        if (xpath.evaluate(mets).size() > 0) {
            String msgTemplate = "The File : '%s' already exists in mets.xml";
            LOGGER.warn(String.format(Locale.ROOT, msgTemplate, relPath));
            return null;
        } else {
            String msgTemplate = "The File : '%s' does not exists in mets.xml";
            LOGGER.warn(String.format(Locale.ROOT, msgTemplate, relPath));
        }
        // add to file section
        String contentType = MCRContentTypes.probeContentType(file);
        LOGGER.warn(MessageFormat.format("Content Type is : {0}", contentType));
        String fileGrpUSE = getFileGroupUse(file);
        String fileId = MessageFormat.format("{0}_{1}", fileGrpUSE.toLowerCase(Locale.ROOT), getFileBase(relPath));
        org.mycore.mets.model.files.File fileAsMetsFile = new org.mycore.mets.model.files.File(fileId, contentType);
        FLocat fLocat = new FLocat(LOCTYPE.URL, relPath);
        fileAsMetsFile.setFLocat(fLocat);
        Element fileSec = getFileGroup(mets, fileGrpUSE);
        fileSec.addContent(fileAsMetsFile.asElement());
        if (fileGrpUSE.equals(MCRMetsFileUse.DEFAULT.toString())) {
            updateOnImageFile(mets, fileId, relPath);
        } else {
            updateOnCustomFile(mets, fileId, relPath);
        }
    } catch (Exception ex) {
        LOGGER.error("Error occured while adding file {} to the existing mets file", file, ex);
        return null;
    }
    return mets;
}