public List execute()

in repository/src/main/java/org/apache/atlas/discovery/FullTextSearchProcessor.java [81:167]
59 lines of code
15 McCabe index (conditional complexity)

    public List<AtlasVertex> execute() {
        if (LOG.isDebugEnabled()) {
            LOG.debug("==> FullTextSearchProcessor.execute({})", context);
        }

        List<AtlasVertex> ret = new ArrayList<>();

        AtlasPerfTracer perf = null;

        if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
            perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "FullTextSearchProcessor.execute(" + context +  ")");
        }

        try {
            final int     startIdx   = context.getSearchParameters().getOffset();
            final int     limit      = context.getSearchParameters().getLimit();
            final boolean activeOnly = context.getSearchParameters().getExcludeDeletedEntities();

            // query to start at 0, even though startIdx can be higher - because few results in earlier retrieval could
            // have been dropped: like vertices of non-entity or non-active-entity
            //
            // first 'startIdx' number of entries will be ignored
            int qryOffset = 0;
            int resultIdx = qryOffset;

            final List<AtlasVertex> entityVertices = new ArrayList<>();

            for (; ret.size() < limit; qryOffset += limit) {
                entityVertices.clear();

                if (context.terminateSearch()) {
                    LOG.warn("query terminated: {}", context.getSearchParameters());

                    break;
                }

                Iterator<AtlasIndexQuery.Result> idxQueryResult = indexQuery.vertices(qryOffset, limit);

                if (!idxQueryResult.hasNext()) { // no more results from solr - end of search
                    break;
                }

                while (idxQueryResult.hasNext()) {
                    AtlasVertex vertex = idxQueryResult.next().getVertex();

                    // skip non-entity vertices
                    if (!AtlasGraphUtilsV1.isEntityVertex(vertex)) {
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("FullTextSearchProcessor.execute(): ignoring non-entity vertex (id={})", vertex.getId());
                        }

                        continue;
                    }

                    if (activeOnly && AtlasGraphUtilsV1.getState(vertex) != AtlasEntity.Status.ACTIVE) {
                        continue;
                    }

                    entityVertices.add(vertex);
                }

                super.filter(entityVertices);

                for (AtlasVertex entityVertex : entityVertices) {
                    resultIdx++;

                    if (resultIdx <= startIdx) {
                        continue;
                    }

                    ret.add(entityVertex);

                    if (ret.size() == limit) {
                        break;
                    }
                }
            }
        } finally {
            AtlasPerfTracer.log(perf);
        }

        if (LOG.isDebugEnabled()) {
            LOG.debug("<== FullTextSearchProcessor.execute({}): ret.size()={}", context, ret.size());
        }

        return ret;
    }