Examples with RepoCtx org.alfresco.repo.activities.feed.RepoCtx used on opensource projects

Example 1 with RepoCtx

use of org.alfresco.repo.activities.feed.RepoCtx in project alfresco-repository by Alfresco.

the class LocalFeedGenerator method generate.

protected boolean generate() throws Exception {
    final Long maxSequence = getPostDaoService().getMaxActivitySeq();
    final Long minSequence = getPostDaoService().getMinActivitySeq();
    final Integer maxNodeHash = getPostDaoService().getMaxNodeHash();
    if ((maxSequence == null) || (minSequence == null) || (maxNodeHash == null)) {
        return false;
    }
    // TODO ... or push this upto to job scheduler ... ?
    AuthenticationUtil.runAs(new RunAsWork<Object>() {

        public Object doWork() {
            getWebScriptsCtx().setTicket(getAuthenticationService().getCurrentTicket());
            return null;
        }
    }, // need web scripts to support System-level authentication ... see RepositoryContainer !
    AuthenticationUtil.getSystemUserName());
    // process the activity posts using the batch processor {@link BatchProcessor}
    BatchProcessor.BatchProcessWorker<JobSettings> worker = new BatchProcessor.BatchProcessWorker<JobSettings>() {

        @Override
        public String getIdentifier(final JobSettings js) {
            // TODO
            StringBuilder sb = new StringBuilder("JobSettings ");
            sb.append(js);
            return sb.toString();
        }

        @Override
        public void beforeProcess() throws Throwable {
        }

        @Override
        public void afterProcess() throws Throwable {
        }

        @Override
        public void process(final JobSettings js) throws Throwable {
            final RetryingTransactionHelper txHelper = getTransactionService().getRetryingTransactionHelper();
            txHelper.setMaxRetries(0);
            txHelper.doInTransaction(new RetryingTransactionCallback<Void>() {

                public Void execute() throws Throwable {
                    int jobTaskNode = js.getJobTaskNode();
                    long minSeq = js.getMinSeq();
                    long maxSeq = js.getMaxSeq();
                    RepoCtx webScriptsCtx = js.getWebScriptsCtx();
                    // FeedTaskProcessor takes JobSettings parameters instead collection of ActivityPost. FeedTaskProcessor can be refactored.
                    feedTaskProcessor.process(jobTaskNode, minSeq, maxSeq, webScriptsCtx);
                    return null;
                }
            }, false, true);
        }
    };
    // provides a JobSettings object
    BatchProcessWorkProvider<JobSettings> provider = new BatchProcessWorkProvider<JobSettings>() {

        private Long skip = minSequence;

        private boolean hasMore = true;

        @Override
        public int getTotalEstimatedWorkSize() {
            long size = maxSequence - minSequence + 1;
            long remain = size % batchSize;
            long workSize = (remain == 0) ? (size / batchSize) : (size / batchSize + 1);
            return (int) workSize;
        }

        @Override
        public Collection<JobSettings> getNextWork() {
            if (!hasMore) {
                return Collections.emptyList();
            }
            JobSettings js = new JobSettings();
            js.setMinSeq(skip);
            js.setMaxSeq(skip + batchSize - 1);
            js.setJobTaskNode(maxNodeHash);
            js.setWebScriptsCtx(getWebScriptsCtx());
            skip += batchSize;
            hasMore = skip > maxSequence ? false : true;
            // One JobSettings object will be returned. Because FeedTaskProcessor fetches list activity posts by itself before processing.
            List<JobSettings> result = new ArrayList<JobSettings>(1);
            result.add(js);
            return result;
        }
    };
    final RetryingTransactionHelper txHelper = getTransactionService().getRetryingTransactionHelper();
    txHelper.setMaxRetries(0);
    // batchSize and loggingInterval parameters are equal 1 because provider always will provide collection with one JobSettings object.
    // FeedTaskProcessor fetches list activity posts by itself before processing. It needs only JobSettings parameters. FeedTaskProcessor can be refactored.
    new BatchProcessor<JobSettings>("LocalFeedGenerator", txHelper, provider, numThreads, 1, null, logger, 1).process(worker, true);
    return true;
}