Examples with DownloadService gov.usgs.cida.coastalhazards.service.data.DownloadService used on opensource projects

Example 1 with DownloadService

use of gov.usgs.cida.coastalhazards.service.data.DownloadService in project coastal-hazards by USGS-CIDA.

the class ItemManager method updateAncestors.

private List<Item> updateAncestors(Item item) {
    List<Item> ancestors = findAncestors(item);
    try (DownloadService downloadService = new DownloadService()) {
        List<String> itemIds = new LinkedList<>();
        for (Item ancestor : ancestors) {
            itemIds.add(ancestor.getId());
            ancestor.setLastModified(new Date());
            ancestor.setBbox(calculateBbox(ancestor));
        }
        downloadService.deleteAll(itemIds);
    }
    return ancestors;
}

Example 2 with DownloadService

use of gov.usgs.cida.coastalhazards.service.data.DownloadService in project coastal-hazards by USGS-CIDA.

the class DownloadResource method deleteStagedItem.

@RolesAllowed({ CoastalHazardsTokenBasedSecurityFilter.CCH_ADMIN_ROLE })
@DELETE
@Produces("application/json")
@Path("/item/{id}")
public Response deleteStagedItem(@PathParam("id") String itemId, @Context HttpServletRequest request) {
    Response response = null;
    try (DownloadService downloadService = new DownloadService()) {
        Download download = downloadService.get(itemId);
        if (download == null) {
            throw new NotFoundException();
        }
        boolean deleted = downloadService.delete(itemId);
        response = Response.ok("{\"deleted\":\"" + deleted + "\"}", MediaType.APPLICATION_JSON_TYPE).build();
    }
    return response;
}

Example 3 with DownloadService

use of gov.usgs.cida.coastalhazards.service.data.DownloadService in project coastal-hazards by USGS-CIDA.

the class DownloadResource method downloadItem.

/**
 * Downloads a zip file containing the contents of
 * gov.usgs.cida.coastalhazards.model.Item
 *
 * @param id identifier of requested item
 * @return JSON representation of the item(s)
 * @throws java.io.IOException
 * @throws java.lang.InterruptedException
 * @throws java.util.concurrent.ExecutionException
 */
@GET
@Path("/item/{id}")
@Produces("application/zip")
public Response downloadItem(@PathParam("id") String id) throws IOException, InterruptedException, ExecutionException {
    Response response;
    Item item;
    try (ItemManager itemManager = new ItemManager()) {
        item = itemManager.load(id);
    }
    if (item == null) {
        response = Response.status(NOT_FOUND).build();
    } else {
        Download download;
        try (DownloadManager downloadManager = new DownloadManager()) {
            download = downloadManager.load(id);
        }
        if (download == null) {
            // Download was null, so we it was not previously staged. Do so now.
            LOG.debug("Download manager could not find download for item {}. A download will be staged for this item.", id);
            DownloadUtility.stageAsyncItemDownload(id);
            response = Response.status(ACCEPTED).build();
        } else {
            LOG.debug("Download manager found a download for item id {}", id);
            if (download.isProblem()) {
                LOG.debug("Download manager found a problem with download for item id {}", id);
                response = Response.status(NOT_IMPLEMENTED).build();
            } else if (StringUtils.isBlank(download.getPersistanceURI())) {
                LOG.debug("Download manager found a download with no path id {}, Item is still being created", id);
                response = Response.status(ACCEPTED).build();
            } else {
                boolean downloadFileExists;
                try (DownloadManager downloadManager = new DownloadManager()) {
                    downloadFileExists = downloadManager.downloadFileExistsOnFilesystem(download);
                }
                // Download should be on the file system. Check that it does exist
                if (!downloadFileExists) {
                    LOG.debug("Download manager found a download path that doesn't exist for id {}. Will delete and re-stage", id);
                    try (DownloadService svc = new DownloadService()) {
                        svc.delete(id);
                    }
                    DownloadUtility.stageAsyncItemDownload(id);
                    response = Response.status(ACCEPTED).build();
                } else {
                    // File was found. Load the zip file
                    File zipFile = download.fetchZipFile();
                    if (zipFile == null) {
                        LOG.debug("Download manager found could not find the zip file that was indicated in the database for item {}. Will attempt to re-stage", id);
                        try (DownloadService svc = new DownloadService()) {
                            svc.delete(id);
                        }
                        DownloadUtility.stageAsyncItemDownload(id);
                        response = Response.status(ACCEPTED).build();
                    } else {
                        String contentDisposition = "attachment; filename=\"" + id + ".zip\"";
                        response = Response.status(OK).entity(zipFile).type("application/zip").header("Content-Disposition", contentDisposition).build();
                    }
                }
            }
        }
    }
    return response;
}

Example 4 with DownloadService

use of gov.usgs.cida.coastalhazards.service.data.DownloadService in project coastal-hazards by USGS-CIDA.

the class DownloadResource method checkItemAvailability.

@HEAD
@Path("/item/{id}")
public Response checkItemAvailability(@PathParam("id") String id) throws IOException {
    Response response;
    Item item;
    try (ItemManager itemManager = new ItemManager()) {
        item = itemManager.load(id);
    }
    if (item == null) {
        response = Response.status(NOT_FOUND).build();
    } else {
        Download download;
        try (DownloadManager downloadManager = new DownloadManager()) {
            download = downloadManager.load(id);
        }
        if (download != null) {
            LOG.debug("Download manager found a download for item id {}", id);
            String persistenceURI = download.getPersistanceURI();
            // If it is null or blank, the download has been accepted
            if (download.isProblem()) {
                LOG.debug("Download manager found a problem with download for item id {}", id);
                response = Response.status(INTERNAL_SERVER_ERROR).build();
            } else if (StringUtils.isBlank(persistenceURI)) {
                LOG.debug("Download manager found a download with no path id {}, Item is probably still being created", id);
                response = Response.status(ACCEPTED).build();
            } else {
                // If it is has content, check whether the file exists on the server
                // If it does not, that means this is a desynchronized entry in the datbase
                // and it should be deleted and reinitialized. Otherwise, this is
                // is good to go and send an OK response
                boolean existsOnFileSystem;
                try (DownloadManager downloadManager = new DownloadManager()) {
                    existsOnFileSystem = downloadManager.downloadFileExistsOnFilesystem(download);
                }
                if (!existsOnFileSystem) {
                    LOG.debug("Download manager found a download path that doesn't exist for id {}. Will delete and re-stage", id);
                    try (DownloadService svc = new DownloadService()) {
                        svc.delete(id);
                    }
                    LOG.debug("Download path for item {} was deleted in the database. Will not attempt to re-stage", id);
                    DownloadUtility.stageAsyncItemDownload(id);
                    response = Response.status(ACCEPTED).build();
                } else {
                    LOG.debug("Download manager found the download for item {}", id);
                    response = Response.status(OK).build();
                }
            }
        } else {
            LOG.debug("Download manager could not find download for item {}. A download will be staged for this item.", id);
            DownloadUtility.stageAsyncItemDownload(id);
            response = Response.status(ACCEPTED).build();
        }
    }
    return response;
}