processingTime = 0;
    }

    /**
     * Gets the total content size of all documents in this list.
     *
     * @return the total content size in bytes
     */
    public long getContentSize() {
        return contentSize;
    }

    /**
     * Adds to the total content size of this document list.
     *
     * @param contentSize the content size to add in bytes
     */

        assertEquals(0, docList.getContentSize());
        assertEquals(0, docList.getProcessingTime());

        docList.addContentSize(1000);
        docList.addProcessingTime(999);
        assertEquals(1000, docList.getContentSize());
        assertEquals(999, docList.getProcessingTime());

        docList.clear();
        assertEquals(0, docList.getContentSize());
        assertEquals(0, docList.getProcessingTime());

                        MemoryUtil.byteCountToDisplaySize(contentSize), processingTime, docList.size());
            }

            if (docList.getContentSize() >= maxDocumentRequestSize || docList.size() >= maxDocumentCacheSize) {
                indexingHelper.sendDocuments(searchEngineClient, docList);
            }
            executeTime += processingTime;
        }

                final long processingTime = systemHelper.getCurrentTimeAsLong() - startTime;
                docList.addProcessingTime(processingTime);

                if (docList.getContentSize() >= maxDocumentRequestSize || docList.size() >= maxDocumentCacheSize) {
                    indexingHelper.sendDocuments(searchEngineClient, docList);
                }
                executeTime += processingTime;

            }
            if (logger.isInfoEnabled()) {
                if (docList.getContentSize() > 0) {
                    logger.info("Sent {} documents (process={}ms, send={}ms, size={}, {})", docList.size(), docList.getProcessingTime(),
                            systemHelper.getCurrentTimeAsLong() - execTime, MemoryUtil.byteCountToDisplaySize(docList.getContentSize()),
                            MemoryUtil.getMemoryUsageLog());

                                MemoryUtil.byteCountToDisplaySize(contentSize), processingTime, docList.size(), docList.getContentSize());
                    }

                    if (docList.getContentSize() >= maxDocumentRequestSize) {
                        indexingHelper.sendDocuments(searchEngineClient, docList);
                    }
                    documentSize++;