Examples with GenericContainerResponse org.everrest.core.GenericContainerResponse used on opensource projects

Example 1 with GenericContainerResponse

use of org.everrest.core.GenericContainerResponse in project che by eclipse.

the class ETagResponseFilter method doFilter.

/**
     * Filter the given container response
     *
     * @param containerResponse
     *         the response to use
     */
public void doFilter(GenericContainerResponse containerResponse) {
    // get entity of the response
    Object entity = containerResponse.getEntity();
    // no entity, skip
    if (entity == null) {
        return;
    }
    // Only handle JSON content
    if (!MediaType.APPLICATION_JSON_TYPE.equals(containerResponse.getContentType())) {
        return;
    }
    // Get the request
    ApplicationContext applicationContext = ApplicationContext.getCurrent();
    Request request = applicationContext.getRequest();
    // manage only GET requests
    if (!HttpMethod.GET.equals(request.getMethod())) {
        return;
    }
    // calculate hash with MD5
    HashFunction hashFunction = Hashing.md5();
    Hasher hasher = hashFunction.newHasher();
    boolean hashingSuccess = true;
    // Manage a list
    if (entity instanceof List) {
        List<?> entities = (List) entity;
        for (Object simpleEntity : entities) {
            hashingSuccess = addHash(simpleEntity, hasher);
            if (!hashingSuccess) {
                break;
            }
        }
    } else {
        hashingSuccess = addHash(entity, hasher);
    }
    // if we're able to handle the hash
    if (hashingSuccess) {
        // get result of the hash
        HashCode hashCode = hasher.hash();
        // Create the entity tag
        EntityTag entityTag = new EntityTag(hashCode.toString());
        // Check the etag
        Response.ResponseBuilder builder = request.evaluatePreconditions(entityTag);
        // not modified ?
        if (builder != null) {
            containerResponse.setResponse(builder.tag(entityTag).build());
        } else {
            // it has been changed, so send response with new ETag and entity
            Response.ResponseBuilder responseBuilder = Response.fromResponse(containerResponse.getResponse()).tag(entityTag);
            containerResponse.setResponse(responseBuilder.build());
        }
    }
}

Example 2 with GenericContainerResponse

use of org.everrest.core.GenericContainerResponse in project che by eclipse.

the class EverrestDownloadFileResponseFilter method doFilter.

/**
     * Filter the given container response.
     *
     * @param containerResponse
     *         the response to use
     */
public void doFilter(GenericContainerResponse containerResponse) {
    containerResponse.getResponse();
    // Get the request
    ApplicationContext applicationContext = ApplicationContext.getCurrent();
    Request request = applicationContext.getRequest();
    // Apply header if all if correct
    String filename = getFileName(request, containerResponse.getContentType(), applicationContext, containerResponse.getStatus());
    if (filename != null) {
        if (hasCompliantEntity(containerResponse.getEntity())) {
            // it has been changed, so send response with updated header
            Response.ResponseBuilder responseBuilder = Response.fromResponse(containerResponse.getResponse()).header(CONTENT_DISPOSITION, "attachment; filename=" + filename);
            containerResponse.setResponse(responseBuilder.build());
        }
    }
}