List of usage examples for org.json JSONObject optJSONArray
public JSONArray optJSONArray(String key)
From source file:com.rapid.actions.Database.java
public JSONObject doQuery(RapidRequest rapidRequest, JSONObject jsonAction, Application application, DataFactory df) throws Exception { // place holder for the object we're going to return JSONObject jsonData = null;// w w w. jav a 2 s . c om // retrieve the sql String sql = _query.getSQL(); // only if there is some sql is it worth going further if (sql != null) { // get any json inputs JSONObject jsonInputData = jsonAction.optJSONObject("data"); // initialise the parameters list ArrayList<Parameters> parametersList = new ArrayList<Parameters>(); // populate the parameters from the inputs collection (we do this first as we use them as the cache key due to getting values from the session) if (_query.getInputs() == null) { // just add an empty parameters member if no inputs parametersList.add(new Parameters()); } else { // if there is input data if (jsonInputData != null) { // get any input fields JSONArray jsonFields = jsonInputData.optJSONArray("fields"); // get any input rows JSONArray jsonRows = jsonInputData.optJSONArray("rows"); // if we have fields and rows if (jsonFields != null && jsonRows != null) { // loop the input rows (only the top row if not multirow) for (int i = 0; i < jsonRows.length() && (_query.getMultiRow() || i == 0); i++) { // get this jsonRow JSONArray jsonRow = jsonRows.getJSONArray(i); // make the parameters for this row Parameters parameters = new Parameters(); // loop the query inputs for (Parameter input : _query.getInputs()) { // get the input id String id = input.getItemId(); // get the input field String field = input.getField(); // add field to id if present if (field != null && !"".equals(field)) id += "." + field; // retain the value String value = null; // if it looks like a control, or a system value (bit of extra safety checking) if ("P".equals(id.substring(0, 1)) && id.indexOf("_C") > 0 || id.indexOf("System.") == 0) { // loop the json inputs looking for the value if (jsonInputData != null) { for (int j = 0; j < jsonFields.length(); j++) { // get the id from the fields String jsonId = jsonFields.optString(j); // if the id we want matches this one if (id.toLowerCase().equals(jsonId.toLowerCase())) { // get the value value = jsonRow.optString(j, null); // no need to keep looking break; } } } } // if still null try the session if (value == null) value = (String) rapidRequest.getSessionAttribute(input.getItemId()); // add the parameter parameters.add(value); } // add the parameters to the list parametersList.add(parameters); } // row loop } // input fields and rows check } // input data check } // query inputs check // placeholder for the action cache ActionCache actionCache = rapidRequest.getRapidServlet().getActionCache(); // if an action cache was found if (actionCache != null) { // log that we found action cache _logger.debug("Database action cache found"); // attempt to fetch data from the cache jsonData = actionCache.get(application.getId(), getId(), parametersList.toString()); } // if there isn't a cache or no data was retrieved if (jsonData == null) { try { // instantiate jsonData jsonData = new JSONObject(); // fields collection JSONArray jsonFields = new JSONArray(); // rows collection can start initialised JSONArray jsonRows = new JSONArray(); // trim the sql sql = sql.trim(); // check the verb if (sql.toLowerCase().startsWith("select") || sql.toLowerCase().startsWith("with")) { // set readonly to true (makes for faster querying) df.setReadOnly(true); // loop the parameterList getting a result set for each parameters (input row) for (Parameters parameters : parametersList) { // get the result set! ResultSet rs = df.getPreparedResultSet(rapidRequest, sql, parameters); // get it's meta data for the field names ResultSetMetaData rsmd = rs.getMetaData(); // got fields indicator boolean gotFields = false; // loop the result set while (rs.next()) { // initialise the row JSONArray jsonRow = new JSONArray(); // loop the columns for (int i = 0; i < rsmd.getColumnCount(); i++) { // add the field name to the fields collection if not done yet if (!gotFields) jsonFields.put(rsmd.getColumnLabel(i + 1)); // get the column type int columnType = rsmd.getColumnType(i + 1); // add the data to the row according to it's type switch (columnType) { case (Types.NUMERIC): jsonRow.put(rs.getDouble(i + 1)); break; case (Types.INTEGER): jsonRow.put(rs.getInt(i + 1)); break; case (Types.BIGINT): jsonRow.put(rs.getLong(i + 1)); break; case (Types.FLOAT): jsonRow.put(rs.getFloat(i + 1)); break; case (Types.DOUBLE): jsonRow.put(rs.getDouble(i + 1)); break; default: jsonRow.put(rs.getString(i + 1)); } } // add the row to the rows collection jsonRows.put(jsonRow); // remember we now have our fields gotFields = true; } // close the record set rs.close(); } } else { // assume rows affected is 0 int rows = 0; // sql check if (sql.length() > 0) { // perform update for all incoming parameters (one parameters collection for each row) for (Parameters parameters : parametersList) { rows += df.getPreparedUpdate(rapidRequest, sql, parameters); } // add a psuedo field jsonFields.put("rows"); // create a row array JSONArray jsonRow = new JSONArray(); // add the rows updated jsonRow.put(rows); // add the row we just made jsonRows.put(jsonRow); } } // add the fields to the data object jsonData.put("fields", jsonFields); // add the rows to the data object jsonData.put("rows", jsonRows); // check for any child database actions if (_childDatabaseActions != null) { // if there really are some if (_childDatabaseActions.size() > 0) { // get any child data JSONArray jsonChildQueries = jsonAction.optJSONArray("childQueries"); // if there was some if (jsonChildQueries != null) { // loop for (int i = 0; i < jsonChildQueries.length(); i++) { // fetch the data JSONObject jsonChildAction = jsonChildQueries.getJSONObject(i); // read the index (the position of the child this related to int index = jsonChildAction.getInt("index"); // get the relevant child action Database childDatabaseAction = _childDatabaseActions.get(index); // get the resultant child data JSONObject jsonChildData = childDatabaseAction.doQuery(rapidRequest, jsonChildAction, application, df); // a map for indexes of matching fields between our parent and child Map<Integer, Integer> fieldsMap = new HashMap<Integer, Integer>(); // the child fields JSONArray jsonChildFields = jsonChildData.getJSONArray("fields"); if (jsonChildFields != null) { // loop the parent fields for (int j = 0; j < jsonFields.length(); j++) { // loop the child fields for (int k = 0; k < jsonChildFields.length(); k++) { // get parent field String field = jsonFields.getString(j); // get child field String childField = jsonChildFields.getString(k); // if both not null if (field != null && childField != null) { // check for match if (field.toLowerCase().equals(childField.toLowerCase())) fieldsMap.put(j, k); } } } } // add a field for the results of this child action jsonFields.put("childAction" + (i + 1)); // if matching fields if (fieldsMap.size() > 0) { // an object with a null value for when there is no match Object nullObject = null; // get the child rows JSONArray jsonChildRows = jsonChildData.getJSONArray("rows"); // if we had some if (jsonChildRows != null) { // loop the parent rows for (int j = 0; j < jsonRows.length(); j++) { // get the parent row JSONArray jsonRow = jsonRows.getJSONArray(j); // make a new rows collection for the child subset JSONArray jsonChildRowsSubset = new JSONArray(); // loop the child rows for (int k = 0; k < jsonChildRows.length(); k++) { // get the child row JSONArray jsonChildRow = jsonChildRows.getJSONArray(k); // assume no matches int matches = 0; // loop the fields map for (Integer l : fieldsMap.keySet()) { // parent value Object parentValue = null; // get the value if there are enough if (jsonRow.length() > l) parentValue = jsonRow.get(l); // child value Object childValue = null; if (jsonChildRow.length() > l) childValue = jsonChildRow.get(fieldsMap.get(l)); // non null check if (parentValue != null && childValue != null) { // a string we will concert the child value to String parentString = null; // check the parent value type if (parentValue.getClass() == String.class) { parentString = (String) parentValue; } else if (parentValue.getClass() == Integer.class) { parentString = Integer .toString((Integer) parentValue); } else if (parentValue.getClass() == Long.class) { parentString = Long.toString((Long) parentValue); } else if (parentValue.getClass() == Double.class) { parentString = Double .toString((Double) parentValue); } else if (parentValue.getClass() == Boolean.class) { parentString = Boolean .toString((Boolean) parentValue); } // a string we will convert the child value to String childString = null; // check the parent value type if (childValue.getClass() == String.class) { childString = (String) childValue; } else if (childValue.getClass() == Integer.class) { childString = Integer .toString((Integer) childValue); } else if (childValue.getClass() == Long.class) { childString = Long.toString((Long) childValue); } else if (childValue.getClass() == Double.class) { childString = Double.toString((Double) childValue); } else if (childValue.getClass() == Boolean.class) { childString = Boolean .toString((Boolean) childValue); } // non null check if (parentString != null && childString != null) { // do the match! if (parentString.equals(childString)) matches++; } } // values non null } // field map loop // if we got some matches for all the fields add this row to the subset if (matches == fieldsMap.size()) jsonChildRowsSubset.put(jsonChildRow); } // child row loop // if our child subset has rows in it if (jsonChildRowsSubset.length() > 0) { // create a new childSubset object JSONObject jsonChildDataSubset = new JSONObject(); // add the fields jsonChildDataSubset.put("fields", jsonChildFields); // add the subset of rows jsonChildDataSubset.put("rows", jsonChildRowsSubset); // add the child database action data subset jsonRow.put(jsonChildDataSubset); } else { // add an empty cell jsonRow.put(nullObject); } } // parent row loop } // jsonChildRows null check } else { // loop the parent rows for (int j = 0; j < jsonRows.length(); j++) { // get the row JSONArray jsonRow = jsonRows.getJSONArray(j); // add the child database action data jsonRow.put(jsonChildData); } } // matching fields check } // jsonChildQueries loop } // jsonChildQueries null check } // _childDatabaseActions size > 0 } // _childDatabaseActions not null // cache if in use if (actionCache != null) actionCache.put(application.getId(), getId(), parametersList.toString(), jsonData); } catch (Exception ex) { // log the error _logger.error(ex); // close the data factory and silently fail try { df.close(); } catch (Exception ex2) { } // only throw if no action cache if (actionCache == null) { throw ex; } else { _logger.debug("Error not shown to user due to cache : " + ex.getMessage()); } } // jsonData not null } // jsonData == null } // got sql return jsonData; }
From source file:org.smilec.smile.bu.json.AnswersAndRatingsJSONParser.java
public static final void process(JSONObject object, Map<String, Student> students, Map<Integer, Question> questions) { String ip = object.optString(IP); Student student = students.get(ip);/*from w ww . j a v a 2s . co m*/ if (student != null) { student.setSolved(true); } JSONArray answersArray = object.optJSONArray(ANSWERS); JSONArray ratingsArray = object.optJSONArray(RATINGS); for (int i = 0; i < answersArray.length(); i++) { Question question = questions.get(i + 1); if (question == null) { continue; } String sRating = ratingsArray.optString(i); String sAnswer = answersArray.optString(i); if (sRating != null && sRating.trim().length() > 0) { Integer rating = Integer.valueOf(sRating); question.addRating(rating); student.addRating(question, rating); } if (sAnswer != null && sAnswer.trim().length() > 0) { Integer answer = Integer.valueOf(sAnswer); question.addAnswer(answer); student.addAnswer(question, answer); } } }