Examples with LockResult org.olat.core.util.coordinate.LockResult used on opensource projects

Example 16 with LockResult

use of org.olat.core.util.coordinate.LockResult in project openolat by klemens.

the class CourseWebService method getRepoFileById.

/**
 * Export the course
 * @response.representation.200.mediaType application/zip
 * @response.representation.200.doc The course as a ZIP file
 * @response.representation.401.doc Not authorized to export the course
 * @response.representation.404.doc The course not found
 * @return It returns the <code>CourseVO</code> object representing the course.
 */
@GET
@Path("file")
@Produces({ "application/zip", MediaType.APPLICATION_OCTET_STREAM })
public Response getRepoFileById(@Context HttpServletRequest request) {
    RepositoryService rs = CoreSpringFactory.getImpl(RepositoryService.class);
    RepositoryEntry re = course.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
    if (re == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    RepositoryHandler typeToDownload = RepositoryHandlerFactory.getInstance().getRepositoryHandler(re);
    if (typeToDownload == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    Identity identity = getIdentity(request);
    boolean canDownload = re.getCanDownload() && typeToDownload.supportsDownload();
    if (isAdmin(request) || RepositoryManager.getInstance().isOwnerOfRepositoryEntry(identity, re)) {
        canDownload = true;
    } else if (!isAuthor(request)) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    if (!canDownload) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    OLATResource ores = OLATResourceManager.getInstance().findResourceable(re.getOlatResource());
    if (ores == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    boolean isAlreadyLocked = typeToDownload.isLocked(ores);
    LockResult lockResult = null;
    try {
        lockResult = typeToDownload.acquireLock(ores, identity);
        if (lockResult == null || (lockResult != null && lockResult.isSuccess() && !isAlreadyLocked)) {
            MediaResource mr = typeToDownload.getAsMediaResource(ores, false);
            if (mr != null) {
                rs.incrementDownloadCounter(re);
                // success
                return Response.ok(mr.getInputStream()).cacheControl(cc).build();
            } else {
                return Response.serverError().status(Status.NO_CONTENT).build();
            }
        } else {
            return Response.serverError().status(Status.CONFLICT).build();
        }
    } finally {
        if ((lockResult != null && lockResult.isSuccess() && !isAlreadyLocked)) {
            typeToDownload.releaseLock(lockResult);
        }
    }
}

Example 17 with LockResult

use of org.olat.core.util.coordinate.LockResult in project openolat by klemens.

the class IQConfigurationController method doIQReference.

private void doIQReference(UserRequest urequest, RepositoryEntry re, boolean manualCorrection) {
    // repository search controller done
    if (re != null) {
        if (CoordinatorManager.getInstance().getCoordinator().getLocker().isLocked(re.getOlatResource(), null)) {
            LockResult lockResult = CoordinatorManager.getInstance().getCoordinator().getLocker().acquireLock(re.getOlatResource(), urequest.getIdentity(), null);
            String fullName = CoreSpringFactory.getImpl(UserManager.class).getUserDisplayName(lockResult.getOwner());
            showError("error.entry.locked", fullName);
            if (lockResult.isSuccess()) {
                // improbable concurrency security
                CoordinatorManager.getInstance().getCoordinator().getLocker().releaseLock(lockResult);
            }
        } else {
            if (editTestButton != null) {
                myContent.remove(editTestButton);
            }
            IQEditController.setIQReference(re, moduleConfiguration);
            String displayName = StringHelper.escapeHtml(re.getDisplayname());
            previewLink = LinkFactory.createCustomLink("command.preview.link", "command.preview", displayName, Link.NONTRANSLATED, myContent, this);
            previewLink.setIconLeftCSS("o_icon o_icon-fw o_icon_preview");
            previewLink.setCustomEnabledLinkCSS("o_preview");
            previewLink.setTitle(getTranslator().translate("command.preview"));
            previewButton = LinkFactory.createButtonSmall("command.preview", myContent, this);
            previewButton.setIconLeftCSS("o_icon o_icon-fw o_icon_preview");
            myContent.contextPut("dontRenderRepositoryButton", new Boolean(true));
            // If of type test, get min, max, cut - put in module config and push
            // to velocity
            boolean isOnyx = OnyxModule.isOnyxTest(re.getOlatResource());
            myContent.contextPut("isOnyx", Boolean.valueOf(isOnyx));
            if (isOnyx) {
                myContent.contextPut("onyxDisplayName", displayName);
                moduleConfiguration.set(IQEditController.CONFIG_KEY_TYPE_QTI, IQEditController.CONFIG_VALUE_QTI2);
            } else if (ImsQTI21Resource.TYPE_NAME.equals(re.getOlatResource().getResourceableTypeName())) {
                moduleConfiguration.set(IQEditController.CONFIG_KEY_TYPE_QTI, IQEditController.CONFIG_VALUE_QTI21);
                if (isEditable(urequest.getIdentity(), urequest.getUserSession().getRoles(), re)) {
                    editTestButton = LinkFactory.createButtonSmall("command.editRepFile", myContent, this);
                }
            } else {
                moduleConfiguration.set(IQEditController.CONFIG_KEY_TYPE_QTI, IQEditController.CONFIG_VALUE_QTI1);
                if (isEditable(urequest.getIdentity(), urequest.getUserSession().getRoles(), re)) {
                    editTestButton = LinkFactory.createButtonSmall("command.editRepFile", myContent, this);
                }
            }
            if (manualCorrection) {
                myContent.contextPut(IQEditController.CONFIG_CORRECTION_MODE, "manual");
            } else {
                myContent.contextPut(IQEditController.CONFIG_CORRECTION_MODE, "auto");
            }
            fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
        }
    }
}

Example 18 with LockResult

use of org.olat.core.util.coordinate.LockResult in project OpenOLAT by OpenOLAT.

the class CourseWebService method getRepoFileById.

/**
 * Export the course
 * @response.representation.200.mediaType application/zip
 * @response.representation.200.doc The course as a ZIP file
 * @response.representation.401.doc Not authorized to export the course
 * @response.representation.404.doc The course not found
 * @return It returns the <code>CourseVO</code> object representing the course.
 */
@GET
@Path("file")
@Produces({ "application/zip", MediaType.APPLICATION_OCTET_STREAM })
public Response getRepoFileById(@Context HttpServletRequest request) {
    RepositoryService rs = CoreSpringFactory.getImpl(RepositoryService.class);
    RepositoryEntry re = course.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
    if (re == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    RepositoryHandler typeToDownload = RepositoryHandlerFactory.getInstance().getRepositoryHandler(re);
    if (typeToDownload == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    Identity identity = getIdentity(request);
    boolean canDownload = re.getCanDownload() && typeToDownload.supportsDownload();
    if (isAdmin(request) || RepositoryManager.getInstance().isOwnerOfRepositoryEntry(identity, re)) {
        canDownload = true;
    } else if (!isAuthor(request)) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    if (!canDownload) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    OLATResource ores = OLATResourceManager.getInstance().findResourceable(re.getOlatResource());
    if (ores == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    boolean isAlreadyLocked = typeToDownload.isLocked(ores);
    LockResult lockResult = null;
    try {
        lockResult = typeToDownload.acquireLock(ores, identity);
        if (lockResult == null || (lockResult != null && lockResult.isSuccess() && !isAlreadyLocked)) {
            MediaResource mr = typeToDownload.getAsMediaResource(ores, false);
            if (mr != null) {
                rs.incrementDownloadCounter(re);
                // success
                return Response.ok(mr.getInputStream()).cacheControl(cc).build();
            } else {
                return Response.serverError().status(Status.NO_CONTENT).build();
            }
        } else {
            return Response.serverError().status(Status.CONFLICT).build();
        }
    } finally {
        if ((lockResult != null && lockResult.isSuccess() && !isAlreadyLocked)) {
            typeToDownload.releaseLock(lockResult);
        }
    }
}

Example 19 with LockResult

use of org.olat.core.util.coordinate.LockResult in project OpenOLAT by OpenOLAT.

the class CatalogWebService method deleteCatalogEntry.

/**
 * Deletes the catalog entry with the path specified in the URL.
 * @response.representation.200.qname {http://www.example.com}catalogEntryVO
 * @response.representation.200.mediaType application/xml, application/json
 * @response.representation.200.doc The catalog entry
 * @response.representation.200.example {@link org.olat.restapi.support.vo.Examples#SAMPLE_CATALOGENTRYVO}
 * @response.representation.401.doc Not authorized
 * @response.representation.404.doc The path could not be resolved to a valid catalog entry
 * @param path The path
 * @param httpRquest The HTTP request
 * @return The response
 */
@DELETE
@Path("{path:.*}")
@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public Response deleteCatalogEntry(@PathParam("path") List<PathSegment> path, @Context HttpServletRequest httpRequest) {
    Long key = getCatalogEntryKeyFromPath(path);
    if (key == null) {
        return Response.serverError().status(Status.NOT_ACCEPTABLE).build();
    }
    CatalogEntry ce = catalogManager.loadCatalogEntry(key);
    if (ce == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    if (!canAdminSubTree(ce, httpRequest)) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    Identity id = getUserRequest(httpRequest).getIdentity();
    LockResult lock = CoordinatorManager.getInstance().getCoordinator().getLocker().acquireLock(lockRes, id, LOCK_TOKEN);
    if (!lock.isSuccess()) {
        return getLockedResponse(lock, httpRequest);
    }
    try {
        catalogManager.deleteCatalogEntry(ce);
    } catch (Exception e) {
        throw new WebApplicationException(e);
    } finally {
        CoordinatorManager.getInstance().getCoordinator().getLocker().releaseLock(lock);
    }
    return Response.ok().build();
}

Example 20 with LockResult

use of org.olat.core.util.coordinate.LockResult in project OpenOLAT by OpenOLAT.

the class FeedManagerImpl method acquireLock.

@Override
public LockResult acquireLock(OLATResourceable feed, Item item, Identity identity) {
    String key = itemKey(item, feed);
    if (key.length() >= OresHelper.ORES_TYPE_LENGTH) {
        key = Encoder.md5hash(key);
    }
    OLATResourceable itemResource = OresHelper.createOLATResourceableType(key);
    LockResult lockResult = coordinator.getLocker().acquireLock(itemResource, identity, key);
    return lockResult;
}