Example usage for com.mongodb.util JSON parse

List of usage examples for com.mongodb.util JSON parse

  1. HOME
  2. Java
  3. com.mongodb
  4. com.mongodb.util.*
  5. JSON
  6. parse

Introduction

In this page you can find the example usage for com.mongodb.util JSON parse.

Prototype

public static Object parse(final String jsonString)

Source Link

Document

Parses a JSON string and returns a corresponding Java object.

Usage

From source file:nosqltools.DBConnection.java

/**
 * Deletes a JSON object from the collection
 * @param obj JSON Objects to delete//from   w  w  w  . j a  va  2 s .  com
 * @return True if unsuccessful operation, else false
 */
public boolean deleteFromDatabase(String obj) {
    boolean flag = false;
    try {
        //If the object passed as a parameter is a JSON array, it is rejected
        if (json_util.isArray(obj)) {
            JOptionPane.showMessageDialog(null,
                    "JSON Arrays are not allowed - Change details for only one JSON object!", "Error",
                    JOptionPane.ERROR_MESSAGE);
        } else //If the object passed as a parameter is a JSON object
        {
            //Parse the object and find it the collection. The results are stored in a cursor.
            DBObject dbobj = (DBObject) JSON.parse(obj);
            DBCursor cursor = collection.find(dbobj);
            int count = cursor.count();

            //If no  objects were found
            if (cursor.count() == 0) {
                flag = true;
                JOptionPane.showMessageDialog(null, "JSON object " + dbobj + " does not exist in collection!",
                        "Error", JOptionPane.ERROR_MESSAGE);
            } else //if objects were found for deletion
            {
                //Loop on the curser until it is equal to 0
                while (count != 0) {
                    while (cursor.hasNext()) {
                        cursor.next();
                    }

                    //Delete the object from the collection
                    if (count != 0)
                        collection.remove(dbobj);
                    count--;
                }
                JOptionPane.showMessageDialog(null,
                        "JSON Object " + dbobj + " has been removed from Collection!", "Deleted Successfully",
                        JOptionPane.INFORMATION_MESSAGE);
            }
        }
    } catch (MongoException me) {
        JOptionPane.showMessageDialog(null, me.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
    }

    return flag;
}

From source file:nosqltools.DBConnection.java

public boolean findFromDatabase(String obj) {
    boolean flag = false;
    String result = "";
    try {/*from   w w  w  .java2 s.c om*/
        if (json_util.isArray(obj)) {
            JOptionPane.showMessageDialog(null,
                    "JSON Arrays are not allowed - Change details for only one JSON object!", "Error",
                    JOptionPane.ERROR_MESSAGE);
        } else {

            DBObject dbobj = (DBObject) JSON.parse(obj);

            DBCursor cursor = collection.find(dbobj);
            int count = cursor.count();
            if (cursor.count() == 0) {
                flag = true;
                JOptionPane.showMessageDialog(null, "JSON object " + dbobj + " does not exist in collection!",
                        "Error", JOptionPane.ERROR_MESSAGE);
            } else {
                while (count != 0) {
                    while (cursor.hasNext()) {
                        System.out.println(cursor.next());
                    }

                    if (count != 0) {
                        result += dbobj + "\n";
                    }
                    count--;
                }
                ResultForm results = new ResultForm(result, cursor.count());
                results.setVisible(true);
            }
        }
    } catch (MongoException me) {
        JOptionPane.showMessageDialog(null, me.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
    }

    return flag;
}

From source file:org.agora.server.Options.java

License:Open Source License

/**
 * Reads Agora Server options from given configuration file.
 *
 * @param Configuration file.//from www .j av  a 2s  .c  o m
 */
public static void readAgoraConfFromFile(String file) {
    String json;
    try {
        Scanner s = new Scanner(new File(file));
        json = s.useDelimiter("\\A").next();
        s.close();
    } catch (FileNotFoundException e) {
        Log.error("[JAgoraServer] Could not find configuration file " + file);
        return;
    }

    // Not even checking whether they exist. They must - boom!
    DBObject bson = (DBObject) JSON.parse(json);
    SERVER_URL = (String) bson.get("url");
    NUM_WORKERS = (Integer) bson.get("number of workers");
    SESSION_BYTE_LENGTH = (Integer) bson.get("session token size");
    REQUEST_WAIT = (Integer) bson.get("request timeout");
    LOG_MESSAGES = (Boolean) bson.get("log");
    DEBUG_MESSAGES = (Boolean) bson.get("debug log");
    ERROR_MESSAGES = (Boolean) bson.get("error log");
    LOG_FILE = (String) bson.get("log file");
    DEBUG_FILE = (String) bson.get("debug log file");
    ERROR_FILE = (String) bson.get("error log file");
}

From source file:org.agora.server.Options.java

License:Open Source License

public static void readAgoraConfFromStream(InputStream is) {
    String json = null;//  w w w  .  j a v  a2 s .co m
    try (Scanner s = new Scanner(is)) {
        json = s.useDelimiter("\\A").next();
    } catch (Exception e) {
        Log.error("[Options] Could not read Agora Conf from stream: " + e.getMessage());
        throw e;
    }

    // Not even checking whether they exist. They must - boom!
    DBObject bson = (DBObject) JSON.parse(json);
    SERVER_URL = (String) bson.get("url");
    NUM_WORKERS = (Integer) bson.get("number of workers");
    SESSION_BYTE_LENGTH = (Integer) bson.get("session token size");
    REQUEST_WAIT = (Integer) bson.get("request timeout");
    LOG_MESSAGES = (Boolean) bson.get("log");
    DEBUG_MESSAGES = (Boolean) bson.get("debug log");
    ERROR_MESSAGES = (Boolean) bson.get("error log");
    LOG_FILE = (String) bson.get("log file");
    DEBUG_FILE = (String) bson.get("debug log file");
    ERROR_FILE = (String) bson.get("error log file");
}

From source file:org.agora.server.Options.java

License:Open Source License

/**
 * Reads Agora Server database options from given configuration file.
 *
 * @param Configuration file./*from w  ww .ja v  a  2 s  .c o  m*/
 */
public static void readDBConfFromFile(String file) {
    String json;
    try {
        Scanner s = new Scanner(new File(file));
        json = s.useDelimiter("\\A").next();
        s.close();
    } catch (FileNotFoundException e) {
        Log.error("[JAgoraServer] Could not find database configuration file " + file);
        return;
    }

    DBObject bson = (DBObject) JSON.parse(json);
    DB_URL = (String) bson.get("url");
    DB_USER = (String) bson.get("user");
    DB_PASS = (String) bson.get("pass");
}

From source file:org.agora.server.Options.java

License:Open Source License

public static void readDBConfFromStream(InputStream is) {
    String json = null;//from  w w  w  . j a va 2  s.  co m
    try (Scanner s = new Scanner(is)) {
        json = s.useDelimiter("\\A").next();
    } catch (Exception e) {
        Log.error("[Options] Could not read Database Conf from stream: " + e.getMessage());
        throw e;
    }

    DBObject bson = (DBObject) JSON.parse(json);
    DB_URL = (String) bson.get("url");
    DB_USER = (String) bson.get("user");
    DB_PASS = (String) bson.get("pass");
}

From source file:org.apache.airavata.userprofile.core.UserProfileDao.java

License:Apache License

public boolean createUserProfile(UserProfile userProfile) throws UserProfileException {
    try {/*  w w  w  .  j av a2 s .  c  o m*/
        WriteResult result = collection
                .insert((DBObject) JSON.parse(modelConversionHelper.serializeObject(userProfile)));
        logger.debug("No of inserted results " + result.getN());
        return true;
    } catch (JsonProcessingException e) {
        throw new UserProfileException(e);
    }
}

From source file:org.apache.airavata.userprofile.core.UserProfileDao.java

License:Apache License

/**
 * The following operation replaces the document with item equal to
 * the given user id. The newly replaced document will only
 * contain the the _id field and the fields in the replacement document.
 * @param userProfile//w w w . ja  va2s.  c  om
 * @throws org.apache.airavata.registry.cpi.UserProfileException
 */
public boolean updateUserProfile(UserProfile userProfile) throws UserProfileException {
    try {
        DBObject query = BasicDBObjectBuilder.start().add(USER_ID, userProfile.getUserId()).get();
        WriteResult result = collection.update(query,
                (DBObject) JSON.parse(modelConversionHelper.serializeObject(userProfile)));
        logger.debug("No of updated results " + result.getN());
        return true;
    } catch (JsonProcessingException e) {
        throw new UserProfileException(e);
    }
}

From source file:org.apache.calcite.adapter.mongodb.MongoTable.java

License:Apache License

/** Executes a "find" operation on the underlying collection.
 *
 * <p>For example,//  ww w.j  ava2 s .c  o  m
 * <code>zipsTable.find("{state: 'OR'}", "{city: 1, zipcode: 1}")</code></p>
 *
 * @param mongoDb MongoDB connection
 * @param filterJson Filter JSON string, or null
 * @param projectJson Project JSON string, or null
 * @param fields List of fields to project; or null to return map
 * @return Enumerator of results
 */
public Enumerable<Object> find(DB mongoDb, String filterJson, String projectJson,
        List<Map.Entry<String, Class>> fields) {
    final DBCollection collection = mongoDb.getCollection(collectionName);
    final DBObject filter = filterJson == null ? null : (DBObject) JSON.parse(filterJson);
    final DBObject project = projectJson == null ? null : (DBObject) JSON.parse(projectJson);
    final Function1<DBObject, Object> getter = MongoEnumerator.getter(fields);
    return new AbstractEnumerable<Object>() {
        public Enumerator<Object> enumerator() {
            final DBCursor cursor = collection.find(filter, project);
            return new MongoEnumerator(cursor, getter);
        }
    };
}

From source file:org.apache.calcite.adapter.mongodb.MongoTable.java

License:Apache License

/** Executes an "aggregate" operation on the underlying collection.
 *
 * <p>For example://  w  w w .jav a 2 s.c  o  m
 * <code>zipsTable.aggregate(
 * "{$filter: {state: 'OR'}",
 * "{$group: {_id: '$city', c: {$sum: 1}, p: {$sum: '$pop'}}}")
 * </code></p>
 *
 * @param mongoDb MongoDB connection
 * @param fields List of fields to project; or null to return map
 * @param operations One or more JSON strings
 * @return Enumerator of results
 */
public Enumerable<Object> aggregate(final DB mongoDb, final List<Map.Entry<String, Class>> fields,
        final List<String> operations) {
    final List<DBObject> list = new ArrayList<DBObject>();
    final BasicDBList versionArray = (BasicDBList) mongoDb.command("buildInfo").get("versionArray");
    final Integer versionMajor = parseIntString(versionArray.get(0).toString());
    final Integer versionMinor = parseIntString(versionArray.get(1).toString());
    //    final Integer versionMaintenance = parseIntString(versionArray
    //      .get(2).toString());
    //    final Integer versionBuild = parseIntString(versionArray
    //      .get(3).toString());

    for (String operation : operations) {
        list.add((DBObject) JSON.parse(operation));
    }
    final DBObject first = list.get(0);
    final List<DBObject> rest = Util.skip(list);
    final Function1<DBObject, Object> getter = MongoEnumerator.getter(fields);
    return new AbstractEnumerable<Object>() {
        public Enumerator<Object> enumerator() {
            final Iterator<DBObject> resultIterator;
            try {
                // Changed in version 2.6: The db.collection.aggregate() method
                // returns a cursor
                // and can return result sets of any size.
                // See: http://docs.mongodb.org/manual/core/aggregation-pipeline
                if (versionMajor > 1) {
                    // MongoDB version 2.6+
                    if (versionMinor > 5) {
                        AggregationOptions options = AggregationOptions.builder()
                                .outputMode(AggregationOptions.OutputMode.CURSOR).build();
                        // Warning - this can result in a very large ArrayList!
                        // but you should know your data and aggregate accordingly
                        ArrayList<DBObject> resultAsArrayList = new ArrayList<DBObject>(
                                Util.toList(mongoDb.getCollection(collectionName).aggregate(list, options)));
                        resultIterator = resultAsArrayList.iterator();
                    } else { // Pre MongoDB version 2.6
                        AggregationOutput result = aggregateOldWay(mongoDb.getCollection(collectionName), first,
                                rest);
                        resultIterator = result.results().iterator();
                    }
                } else { // Pre MongoDB version 2
                    AggregationOutput result = aggregateOldWay(mongoDb.getCollection(collectionName), first,
                            rest);
                    resultIterator = result.results().iterator();
                }
            } catch (Exception e) {
                throw new RuntimeException(
                        "While running MongoDB query " + Util.toString(operations, "[", ",\n", "]"), e);
            }
            return new MongoEnumerator(resultIterator, getter);
        }
    };
}