}

    @Override
    public String execute() {
        final StringBuilder resultBuf = new StringBuilder();

        if (sessionId == null) { // create session id
            sessionId = RandomStringUtils.randomAlphabetic(15);
        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {

                crawlingInfoHelper.generateId(dataMap));
    }

    public void test_generateId_long() {
        for (int i = 0; i < 1000; i++) {
            final String value = RandomStringUtils.randomAlphabetic(550);
            assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 440)).length());
            assertEquals(128, crawlingInfoHelper.generateId(value.substring(0, 450)).length());