Example usage for org.json.simple JSONArray isEmpty

Introduction

In this page you can find the example usage for org.json.simple JSONArray isEmpty.

Prototype

public boolean isEmpty() 

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:scheduler.ServerThread.java

@SuppressWarnings("unchecked")
public void localReceive(PrintWriter out) throws InterruptedException, ParseException {
    JSONArray responseList = new JSONArray();
    JSONParser parser = new JSONParser();
    int batchSize = 10;

    while (msg_cnt > 0) {
        while (!localRespQ.isEmpty()) {
            //waiting up to 100ms for an element to become available.
            String messageBody = localRespQ.poll(100, TimeUnit.MILLISECONDS);

            JSONObject resp = (JSONObject) parser.parse(messageBody);
            responseList.add(resp);/*w  w  w .  ja v  a 2 s . com*/

            msg_cnt--;

            if (responseList.size() == batchSize) {
                out.println(responseList.toString());
                responseList.clear();
            }

        }

        if (!responseList.isEmpty()) {
            out.println(responseList.toString());
            responseList.clear();
        }

    }

}

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From source file:scheduler.ServerThread.java

@SuppressWarnings("unchecked")
public void remoteBatchReceive(PrintWriter out) throws ParseException {
    JSONArray responseList = new JSONArray();
    JSONParser parser = new JSONParser();

    while (msg_cnt > 0) {
        while (resQ.getQueueSize() > 0) {
            //Get up to 10 messages
            List<Message> messages = resQ.batchReceive();

            for (Message message : messages) {
                //                 System.out.println("  Message");
                //                  System.out.println("    MessageId:     " + message.getMessageId());
                //                  System.out.println("    ReceiptHandle: " + message.getReceiptHandle());
                //                  System.out.println("    MD5OfBody:     " + message.getMD5OfBody());
                //                  System.out.println("    Body:          " + message.getBody());

                //Get task
                String messageBody = message.getBody();
                JSONObject resp = (JSONObject) parser.parse(messageBody);
                responseList.add(resp);/*from  w w  w . j  a  va 2  s .c  o m*/

                msg_cnt--;
                // Delete the message
                String messageRecieptHandle = message.getReceiptHandle();
                resQ.deleteMessage(messageRecieptHandle);

            }
            if (!responseList.isEmpty()) {
                out.println(responseList.toString());
                responseList.clear();
            }

        }
    }
}

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From source file:smops.dao.BusinessManager.java

public static void prepareReport(int offset, int limit) {
    JSONArray all_json = new JSONArray();
    final List<Business> bizs = getBusinesses(offset, limit);
    for (Business biz : bizs) {
        if (getValidFormsCount(biz) == 0) {
            continue;
        }//  w  ww.j  av a 2s .com
        //            System.out.println("");
        //            System.out.println("[" + biz.getName() + "] " + biz.getUrl());
        JSONObject biz_json = new JSONObject();
        biz_json.put("name", biz.getName());
        //            biz_json.put("url", biz.getUrl());
        JSONArray forms_json = new JSONArray();
        for (Object f : biz.getForms()) {
            Form form = (Form) f;
            if (form.getPurpose().equals("unknown")) {
                continue;
            }
            JSONObject f_json = new JSONObject();
            f_json.put("page_url", " " + form.getPageUrl() + " ");
            f_json.put("purpose", form.getPurpose());
            //                System.out.println("\t" + form.getPageUrl());
            //                System.out.print("\t[" + form.getPurpose() + "]: ");
            String fields_str = "";
            for (Object inp : form.getFields()) {
                Field field = (Field) inp;
                if (field.getInfoType().equals("unknown")) {
                    continue;
                }
                fields_str += field.getInfoType() + " ";
            }
            f_json.put("fields", fields_str);
            forms_json.add(f_json);
            //                System.out.println(fields_str);
        }
        if (!forms_json.isEmpty()) {
            biz_json.put("forms", forms_json);
        }
        if (!biz_json.isEmpty()) {
            all_json.add(biz_json);
        }
    }
    StringWriter out = new StringWriter();
    try {
        all_json.writeJSONString(out);
    } catch (IOException ex) {
        Logger.getLogger(BusinessManager.class.getName()).log(Level.SEVERE, null, ex);
    }
    String jsonText = out.toString();
    System.out.print(jsonText.replaceAll("/", ""));
}

---

From source file:smops.dao.BusinessManager.java

public static void prepareTableReport(List<Business> bizs) {
    JSONArray all_json = new JSONArray();
    for (Business biz : bizs) {
        //            if (getValidFormsCount(biz) == 0) {
        //                continue;
        //            }
        //            System.out.println("");
        //            System.out.println("[" + biz.getName() + "] " + biz.getUrl());
        JSONObject biz_json = new JSONObject();
        biz_json.put("name", biz.getName());
        //            biz_json.put("url", biz.getUrl());
        JSONArray forms_json = new JSONArray();
        for (Object f : biz.getForms()) {
            Form form = (Form) f;/*from w ww  . ja v a  2  s.co  m*/
            //                if (!form.getPurpose().equals("unknown")) {
            //                    continue;
            //                }
            JSONObject f_json = new JSONObject();
            f_json.put("page_url", " " + form.getPageUrl() + " ");
            f_json.put("purpose", form.getPurpose());
            System.out.print(biz.getName() + "\t");
            System.out.print(form.getPageUrl() + "\t");
            System.out.print(form.getPurpose() + "\t");
            //                System.out.println("\t" + form.getPageUrl());
            //                System.out.print("\t[" + form.getPurpose() + "]: ");
            String fields_str = "";
            List<String> fields_infoType = new ArrayList<>();
            for (Object inp : form.getFields()) {
                Field field = (Field) inp;
                fields_infoType.add(field.getInfoType());
            }
            for (String inftype : Constants.infoType_keywords.keySet()) {
                if (fields_infoType.contains(inftype)) {
                    System.out.print("1\t");
                } else {
                    System.out.print(" \t");
                }

            }
            for (Object inp : form.getFields()) {
                Field field = (Field) inp;
                if (field.getInfoType().equals("unknown")) {
                    continue;
                }
                fields_str += field.getInfoType() + " ";
            }
            f_json.put("fields", fields_str);
            forms_json.add(f_json);
            //                System.out.println(fields_str);
            System.out.println();
        }
        if (!forms_json.isEmpty()) {
            biz_json.put("forms", forms_json);
        }
        if (!biz_json.isEmpty()) {
            all_json.add(biz_json);
        }
    }
    StringWriter out = new StringWriter();
    try {
        all_json.writeJSONString(out);
    } catch (IOException ex) {
        Logger.getLogger(BusinessManager.class.getName()).log(Level.SEVERE, null, ex);
    }
    String jsonText = out.toString();
    //        System.out.print(jsonText.replaceAll("/", ""));
}

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