Example usage for org.json.simple JSONArray size

List of usage examples for org.json.simple JSONArray size

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Introduction

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

Prototype

public int size()

Source Link

Document

Returns the number of elements in this list.

Usage

From source file:mas.MAS.java

public static void extractAffilition(int start) {
    String file_prefix = "affilitions";
    String csv_file_path = "data/" + file_prefix + ".csv";
    String json_dump_file_path = "data/" + file_prefix + "_dump.json";
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Affiliation?";
    url += "$format=json";
    while (true) {
        try {//from  ww w .  j a  v  a2  s .  com
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Affilition: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long id = (Long) paperObj.get("ID");
                    String officialName = normalized((String) paperObj.get("OfficialName"));
                    String displayName = normalized((String) paperObj.get("DisplayName"));
                    String nativeName = normalized((String) paperObj.get("NativeName"));
                    Long parentID = (Long) paperObj.get("ParentID");
                    String homepage = normalized((String) paperObj.get("Homepage"));
                    String shortName = normalized((String) paperObj.get("ShortName"));
                    Long type = (Long) paperObj.get("Type");
                    csv_str.append(id).append(SEPERATOR).append(officialName).append(SEPERATOR)
                            .append(displayName).append(SEPERATOR).append(nativeName).append(SEPERATOR)
                            .append(parentID).append(SEPERATOR).append(homepage).append(SEPERATOR)
                            .append(shortName).append(SEPERATOR).append(type).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(300L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InterruptedException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

From source file:mas.MAS.java

public static void extractPaper_Author(int start) {
    String file_prefix = "paper_authors";
    String csv_file_path = "data/" + file_prefix + ".csv";
    String json_dump_file_path = "data/" + file_prefix + "_dump.json";
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Author?";
    url += "$format=json";
    while (true) {
        try {//from   w  w  w .j a va2s  .c o m
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper_Author: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long paperID = (Long) paperObj.get("PaperID");

                    Long seqID = (Long) paperObj.get("SeqID");

                    Long authorID = (Long) paperObj.get("authorID");
                    String name = normalized((String) paperObj.get("Name"));
                    String affiliation = normalized((String) paperObj.get("Affiliation"));

                    Long affiliationID = (Long) paperObj.get("AffiliationID");
                    csv_str.append(paperID).append(SEPERATOR).append(seqID).append(SEPERATOR).append(authorID)
                            .append(SEPERATOR).append(name).append(SEPERATOR).append(affiliation)
                            .append(SEPERATOR).append(affiliationID).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(300L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InterruptedException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

From source file:mas.MAS.java

public static void extractPaper_Category(int start) {
    String file_prefix = "paper_categories";
    String csv_file_path = "data/" + file_prefix + ".csv";
    String json_dump_file_path = "data/" + file_prefix + "_dump.json";
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Category?";
    url += "$format=json";
    while (true) {
        try {//from ww  w  .  j  a  v  a2  s  .c om
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(5000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper_Category: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long cPaperID = (Long) paperObj.get("CPaperID");

                    Long domainID = (Long) paperObj.get("DomainID");

                    Long subDomainID = (Long) paperObj.get("SubDomainID");
                    csv_str.append(cPaperID).append(SEPERATOR).append(domainID).append(SEPERATOR)
                            .append(subDomainID).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(300L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InterruptedException ex) {
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

From source file:mas.MAS.java

public static void extractPaperCategory(int start, int domain, int subdomain) {
    String csv_file_path = "data/papers_d" + domain + "_sd" + subdomain + ".csv";
    String json_dump_file_path = "data/papers_dump_d" + domain + "_sd" + subdomain + ".json";
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Category?$filter=DomainID%20eq%20"
            + domain + "%20and%20SubDomainID%20eq%20" + subdomain + "&$format=json";
    //        String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper?$select=ID,DocType,Title,Year,ConfID,JourID&$filter=Year%20gt%202001&$format=json";
    while (true) {
        IOUtils.writeDataIntoFile(start + "", paper_last, false);
        try {/*  ww  w .  j  a va 2s . com*/
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            //                System.out.println("json=" + json);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(1000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long cPaperID = (Long) paperObj.get("CPaperID");
                    Long domainID = (Long) paperObj.get("DomainID");
                    Long subDomainID = (Long) paperObj.get("SubDomainID");
                    csv_str.append(cPaperID).append(SEPERATOR).append(domainID).append(SEPERATOR)
                            .append(subDomainID).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(400L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        } catch (InterruptedException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        }
    }
}

From source file:mas.MAS.java

public static void getPapers(int start, String papers_filter, String csvFile, String jsonFile) {
    String csv_file_path = csvFile;
    String json_dump_file_path = jsonFile;
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper?$select=ID,Title&$filter="
            + papers_filter + "&$format=json";
    while (true) {
        IOUtils.writeDataIntoFile(start + "", paper_last, false);
        try {/*w w w.  ja v  a2s . c  o m*/
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            //                System.out.println("json=" + json);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(1000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    //                        Long docType = (Long) paperObj.get("DocType");
                    //                        Long year = (Long) paperObj.get("Year");
                    //                        Long jourID = (Long) paperObj.get("JourID");
                    //                        Long confID = (Long) paperObj.get("ConfID");
                    Long id = (Long) paperObj.get("ID");
                    String title = (String) paperObj.get("Title");
                    title = normalized(title);
                    csv_str.append(id).append(SEPERATOR).append(title).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(400L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        } catch (InterruptedException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        }
    }
}

From source file:mas.MAS.java

public static void getAuthors(int start, String authors_filter, String csvFile, String jsonFile) {
    String csv_file_path = csvFile;
    String json_dump_file_path = jsonFile;
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Author?$select=ID,Name,NativeName,AffiliationID&$filter="
            + authors_filter + "&$format=json";
    //        String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Author?$select=PaperID,SeqID,AuthorID,Name,AffiliationID&$filter=" + papers_filter + "&$format=json";
    while (true) {
        IOUtils.writeDataIntoFile(start + "", paper_last, false);
        try {//from  w w  w . java2  s.  com
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            //                System.out.println("json=" + json);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(1000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long id = (Long) paperObj.get("ID");
                    String name = normalized((String) paperObj.get("Name"));
                    String nativeName = normalized((String) paperObj.get("NativeName"));
                    //                        String affiliation = normalized((String) paperObj.get("Affiliation"));
                    Long affiliationID = (Long) paperObj.get("AffiliationID");
                    //                        Long version = (Long) paperObj.get("Version");
                    csv_str.append(id).append(SEPERATOR).append(name).append(SEPERATOR).append(nativeName)
                            .append(SEPERATOR).append(affiliationID).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(400L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(5000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex1);
            }

        } catch (InterruptedException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(5000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex1);
            }

        }
    }
}

From source file:mas.MAS.java

public static void extractPapers(int start) {
    String csv_file_path = "data/papers_" + start + ".csv";
    String json_dump_file_path = "data/papers_dump_" + start + ".json";
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper?$select=ID,DocType,Title,Year,ConfID,JourID&$filter=Year%20gt%202001&$format=json";
    while (true) {
        IOUtils.writeDataIntoFile(start + "", paper_last, false);
        try {//from   w  w  w  .j a  va  2s. c  om
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            //                System.out.println("json=" + json);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(1000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long docType = (Long) paperObj.get("DocType");
                    Long year = (Long) paperObj.get("Year");
                    Long jourID = (Long) paperObj.get("JourID");
                    Long confID = (Long) paperObj.get("ConfID");
                    Long id = (Long) paperObj.get("ID");
                    String title = (String) paperObj.get("Title");
                    title = normalized(title);
                    csv_str.append(id).append(SEPERATOR).append(docType).append(SEPERATOR).append(year)
                            .append(SEPERATOR).append(jourID).append(SEPERATOR).append(confID).append(SEPERATOR)
                            .append(title).append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(400L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        } catch (InterruptedException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(10000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS.class.getName()).log(Level.SEVERE, null, ex1);
            }

        }
    }
}

From source file:mas.MAS.java

public static void getPaperAuthors(int start, String papers_filter, String csvFile, String jsonFile) {
    String csv_file_path = csvFile;
    String json_dump_file_path = jsonFile;
    String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Author?$select=PaperID,SeqID,AuthorID,Name,AffiliationID&$filter="
            + papers_filter + "&$format=json";
    //        String url = "https://api.datamarket.azure.com/MRC/MicrosoftAcademic/v2/Paper_Ref?$select=SrcID,DstID,SeqID&$filter=" + papers_filter + "&$format=json";
    while (true) {
        IOUtils.writeDataIntoFile(start + "", paper_last, false);
        try {// ww  w. j  av a2 s . co m
            StringBuilder csv_str = new StringBuilder();
            final String json = getData2(url, start);
            //                System.out.println("json=" + json);
            if (json == null) {
                System.out.println("json is null. skip. old start=" + start);
                start += 100;
                Thread.sleep(1000L);
                continue;
            }
            JSONParser parser = new JSONParser();
            JSONObject jsonObj = (JSONObject) parser.parse(json);
            final JSONObject dObj = (JSONObject) jsonObj.get("d");
            final JSONArray results = (JSONArray) dObj.get("results");
            if (results.size() == 0) {
                System.out.println("results is Empty, break.");
                break;
            } else {
                System.out.println("Paper: start = " + start + " results# = " + results.size());
                for (Object paper : results) {
                    JSONObject paperObj = (JSONObject) paper;
                    Long paperID = (Long) paperObj.get("PaperID");
                    Long seqID = (Long) paperObj.get("SeqID");
                    Long authorID = (Long) paperObj.get("AuthorID");
                    String name = normalized((String) paperObj.get("Name"));
                    //                        String affiliation = normalized((String) paperObj.get("Affiliation"));
                    Long affiliationID = (Long) paperObj.get("AffiliationID");
                    csv_str.append(paperID).append(SEPERATOR).append(seqID).append(SEPERATOR).append(authorID)
                            .append(SEPERATOR).append(name).append(SEPERATOR).append(affiliationID)
                            .append(NEWLINE);
                }
                IOUtils.writeDataIntoFile(json + "\n", json_dump_file_path);
                IOUtils.writeDataIntoFile(csv_str.toString(), csv_file_path);
                start += 100;
                Thread.sleep(300L);
            }
            //                System.out.println("json= " + jsonObj);
        } catch (ParseException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(5000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex1);
            }

        } catch (InterruptedException ex) {
            System.out.println(ex.getMessage() + " Cause: " + ex.getCause());
            Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex);
            start += 100;
            try {
                Thread.sleep(5000L);
            } catch (InterruptedException ex1) {
                Logger.getLogger(MAS_VLDB.class.getName()).log(Level.SEVERE, null, ex1);
            }

        }
    }
}

From source file:com.jts.rest.profileservice.utils.RestServiceHelper.java

/**
 * Gets the recent challenges and splits them to active and past challenges
 * Maximum 3 past challenges and all active challenges will be returned
 * @param sessionId/*from w  w w .  j a  va2 s .co m*/
 * @param username
 * @return
 * @throws MalformedURLException
 * @throws IOException
 */
@SuppressWarnings("unchecked")
public static JSONObject getProcessedChallengesM2(String sessionId, String username)
        throws MalformedURLException, IOException {
    JSONArray recentChallenges = getRecentParticipantChallengesByUsername(sessionId, username);
    JSONArray activeChallenges = new JSONArray();
    JSONArray pastChallenges = new JSONArray();

    Iterator<JSONObject> iterator = recentChallenges.iterator();
    while (iterator.hasNext()) {
        JSONObject participantChallenge = iterator.next();
        JSONObject challenge = (JSONObject) participantChallenge.get("Challenge__r");
        if (challenge.get("Status__c").equals(PSContants.STATUS_CREATED)) { //active challenge
            activeChallenges.add(participantChallenge);
            JSONArray categories = getCategoriesByChallenge(sessionId,
                    (String) participantChallenge.get("Challenge__c"));
            participantChallenge.put("categories", categories);
        } else { //past challenges
            if (pastChallenges.size() < 3) {
                pastChallenges.add(participantChallenge);
                JSONArray categories = getCategoriesByChallenge(sessionId,
                        (String) participantChallenge.get("Challenge__c"));
                participantChallenge.put("categories", categories);
            }
        }
    }
    JSONObject challenges = new JSONObject();
    challenges.put("activeChallenges", activeChallenges);
    challenges.put("pastChallenges", pastChallenges);
    challenges.put("totalChallenges", getChallengeCountByUser(sessionId, username));
    return challenges;
}

From source file:com.intel.genomicsdb.GenomicsDBImporter.java

/**
 * Utility function that returns a list of ChromosomeInterval objects for
 * the column partition specified by the loader JSON file and rank/partition index
 * @param loaderJSONFile path to loader JSON file
 * @param partitionIdx rank/partition index
 * @return list of ChromosomeInterval objects for the specified partition 
 * @throws ParseException when there is a bug in the JNI interface and a faulty JSON is returned
 *///from  w  w w .j ava 2  s .  c  om
public static ArrayList<ChromosomeInterval> getChromosomeIntervalsForColumnPartition(
        final String loaderJSONFile, final int partitionIdx) throws ParseException {
    final String chromosomeIntervalsJSONString = jniGetChromosomeIntervalsForColumnPartition(loaderJSONFile,
            partitionIdx);
    /* JSON format
      {
        "contigs": [
           { "chr1": [ 100, 200] },
           { "chr2": [ 500, 600] }
        ]
      }
    */
    ArrayList<ChromosomeInterval> chromosomeIntervals = new ArrayList<ChromosomeInterval>();
    JSONParser parser = new JSONParser();
    JSONObject topObj = (JSONObject) (parser.parse(chromosomeIntervalsJSONString));
    assert topObj.containsKey("contigs");
    JSONArray listOfDictionaries = (JSONArray) (topObj.get("contigs"));
    for (Object currDictObj : listOfDictionaries) {
        JSONObject currDict = (JSONObject) currDictObj;
        assert currDict.size() == 1; //1 entry
        for (Object currEntryObj : currDict.entrySet()) {
            Map.Entry<String, JSONArray> currEntry = (Map.Entry<String, JSONArray>) currEntryObj;
            JSONArray currValue = currEntry.getValue();
            assert currValue.size() == 2;
            chromosomeIntervals.add(new ChromosomeInterval(currEntry.getKey(), (Long) (currValue.get(0)),
                    (Long) (currValue.get(1))));
        }
    }
    return chromosomeIntervals;
}