-//package org.onap.vid.services;
-//
-////import com.opencsv.CSVReader;
-//import org.json.JSONArray;
-//import org.json.JSONObject;
-//import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
-//import org.springframework.stereotype.Service;
-//import org.springframework.web.multipart.MultipartFile;
-//
-//import javax.ws.rs.BadRequestException;
-//import java.io.FileNotFoundException;
-//import java.io.FileReader;
-//import java.io.IOException;
-//import java.io.InputStreamReader;
-//import java.util.ArrayList;
-//import java.util.Arrays;
-//import java.util.List;
-//
-//import static org.onap.vid.utils.Logging.getMethodName;
-//
-//@Service
-//public class CsvServiceImpl implements CsvService{
-//
-//
-// /** The logger. */
-// static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(CsvServiceImpl.class);
-//
-// private static final String arrayRegex = "\\[(.*?)\\]";
-//
-//
-// /**
-// * In UTF-8 the first line starts with "\uFEFF" so need to remove it
-// * @param line is first line contains BOM
-// * @return line after change
-// */
-// private String [] removeBOMFromCsv(String [] line){
-// if (line.length>0)
-// line[0] = line[0].replaceFirst("\uFEFF","").replaceFirst("","");
-// return line;
-// }
-//
-// /**
-// * read a csv file and puts its content in list of string arrays (without the empty lines)
-// * @param filePath - the path of file to read
-// * @return the content of file
-// * @throws IOException
-// */
-// /*@Override
-// public List<String[]> readCsv(String filePath) throws IOException {
-// CSVReader reader = new CSVReader(new FileReader(filePath));
-// return readCsv(reader);
-// }
-//
-// @Override
-// public List<String[]> readCsv(MultipartFile file) throws IOException {
-// CSVReader reader = new CSVReader(new InputStreamReader(file.getInputStream()));
-// return readCsv(reader);
-// }
-//
-// private List<String[]> addLineWithoutSpaces(List<String[]> myEntries, String [] line){
-// line = Arrays.stream(line).filter(x -> !"".equals(x)).toArray(String[]::new);
-// if(line.length > 0)
-// myEntries.add(line);
-// return myEntries;
-// }
-//
-//
-// private List<String[]> readCsv(CSVReader reader) throws IOException {
-// try {
-// List<String[]> myEntries = new ArrayList<>() ;
-// String [] line;
-// Boolean firstLine = true;
-// while ((line = reader.readNext())!= null) {
-// if (firstLine) {
-// line = removeBOMFromCsv(line);
-// firstLine = false;
-// }
-// myEntries = addLineWithoutSpaces(myEntries, line);
-// }
-// return myEntries;
-// }
-// catch (Exception e){
-// logger.error("error during reading CSV file. exception:" + e.getMessage());
-// throw e;
-// }
-//
-// }*/
-//
-// /**
-// * main function that call to the recursive function with initial parameters
-// * @param myEntries - the matrix with file content
-// * @return the json
-// * @throws IOException
-// * @throws InstantiationException
-// * @throws IllegalAccessException
-// */
-// @Override
-// public JSONObject convertCsvToJson (List<String[]> myEntries) throws InstantiationException, IllegalAccessException {
-// try {
-// return buildJSON(myEntries, 0, 0, myEntries.size(), JSONObject.class);
-// }
-// catch (Exception e){
-// logger.error("error during parsing CSV file. exception:" + e.getMessage());
-// throw e;
-// }
-//
-// }
-//
-// /**
-// * it goes over the matrix column while the values are the same and returns the index of changed value
-// * @param myEntries the matrix
-// * @param i row index refer to the whole matrix
-// * @param j column index
-// * @param numLines the length of the current inner matrix
-// * @param startLine row index of inner matrix
-// * @return the index of changed line
-// */
-// private int findIndexOfChangedLine(List<String[]> myEntries, final int i, final int j, final int numLines, final int startLine) {
-// int k;
-// for(k = 0; k + i - startLine < numLines && myEntries.get(i)[j].equals(myEntries.get(k + i)[j]) ; k++);
-// return k;
-// }
-//
-// /**
-// * check in array if its first element or if the key already exist in the previous item
-// * @param jsonArray - the array to search in
-// * @param key - the key to check
-// * @return if exists or first element return true, otherwise- false
-// */
-// private Boolean keyExistsOrFirstElement( JSONArray jsonArray,String key){
-// Boolean exists = false;
-// Boolean first = false;
-// JSONObject lastItem = lastItemInArray(jsonArray);
-// if (lastItem == null) {
-// first = true;
-// }
-// else {
-// if (lastItem.has(key)) {
-// exists = true;
-// }
-// }
-// return exists||first;
-// }
-//
-// /**
-// * return last json in json array
-// * @param jsonArray
-// * @return last item or null if the array is empty
-// */
-// private JSONObject lastItemInArray(JSONArray jsonArray){
-// JSONObject lastItem = null;
-// if(jsonArray.length()>0) {
-// lastItem = (JSONObject) jsonArray.get(jsonArray.length() - 1);
-// }
-// return lastItem;
-// }
-//
-// /**
-// * append current json to the main json
-// * @param json - the main json to append to it
-// * @param key - key to append
-// * @param values - value(s) to append
-// * @param <T> can be JSONObject or JSONArray
-// * @param <E> string or jsonObject or jsonArray
-// * @return json after put
-// * @throws IllegalAccessException
-// * @throws InstantiationException
-// */
-// private <T, E> T putJson(T json, String key, E values) throws IllegalAccessException, InstantiationException {
-// if (json instanceof JSONArray){
-// JSONArray currentJson= ((JSONArray)json);
-// if (values == null) //array of strings (for last item)
-// {
-// currentJson.put(key);
-// }
-// else {
-// if (keyExistsOrFirstElement(currentJson, key)) {
-// currentJson.put(new JSONObject().put(key, values));
-// } else {
-// JSONObject lastItem = lastItemInArray(currentJson);
-// lastItem.put(key, values);
-// }
-// }
-// }
-// if (json instanceof JSONObject){
-// if (values == null)
-// throw new BadRequestException("Invalid csv file");
-// ((JSONObject)json).put(key,values);
-// }
-// return json;
-// }
-//
-//
-// /**
-// * recursive function to build JSON. Each time it counts the same values in left and send the smaller matrix
-// * (until the changed value) to the next time.
-// *
-// * @param myEntries - the whole matrix
-// * @param i- row index of the whole matrix
-// * @param j - column index
-// * @param numLines - number of lines of inner matrix (num of same values in the left column)
-// * @param clazz JSONArray or JSONObject
-// * @param <T> JSONArray or JSONObject
-// * @return the json object
-// * @throws IllegalAccessException
-// * @throws InstantiationException
-// */
-// private <T> T buildJSON(List<String[]> myEntries, int i, final int j, final int numLines, Class<T> clazz) throws IllegalAccessException, InstantiationException {
-// logger.debug(EELFLoggerDelegate.debugLogger, "start {}({}, {}, {})", getMethodName(), i, j, numLines);
-// T json = clazz.newInstance();
-// int startLine = i;
-// while(i < numLines + startLine){
-// String[] currentRow = myEntries.get(i);
-// int length = currentRow.length;
-// int currentDuplicateRows = findIndexOfChangedLine(myEntries,i,j,numLines, startLine);
-// String key = currentRow[j];
-// if (j == length-1) {
-// json = putJson(json,currentRow[j],null);
-//
-// }
-// else
-// {
-// if (key.matches(arrayRegex)){
-// JSONArray arrayObjects = buildJSON(myEntries, i, j + 1, currentDuplicateRows, JSONArray.class);
-// json = putJson(json,key.replaceAll("\\[","").replaceAll("]",""),arrayObjects);
-// }
-// else {
-// if (j < length - 2) {
-// json = putJson(json, currentRow[j], buildJSON(myEntries, i, j + 1, currentDuplicateRows, JSONObject.class));
-// }
-// else
-// {
-// if (j == length - 2)//last object
-// {
-// if(currentDuplicateRows > 1) {
-// throw new BadRequestException("Invalid csv file");
-// }
-// json = putJson(json, currentRow[j], currentRow[j + 1]);
-// }
-// }
-// }
-// }
-// i += currentDuplicateRows;
-// }
-// logger.debug(EELFLoggerDelegate.debugLogger, "end {} json = {}", getMethodName(), json);
-// return json;
-// }
-//
-//}
-//
+package org.onap.vid.services;
+
+import com.opencsv.CSVReader;
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.openecomp.portalsdk.core.logging.logic.EELFLoggerDelegate;
+import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.ws.rs.BadRequestException;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.onap.vid.utils.Logging.getMethodName;
+
+@Service
+public class CsvServiceImpl implements CsvService{
+
+
+ /** The logger. */
+ static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(CsvServiceImpl.class);
+
+ private static final String arrayRegex = "\\[(.*?)\\]";
+
+
+ /**
+ * In UTF-8 the first line starts with "\uFEFF" so need to remove it
+ * @param line is first line contains BOM
+ * @return line after change
+ */
+ private String [] removeBOMFromCsv(String [] line){
+ if (line.length>0)
+ line[0] = line[0].replaceFirst("\uFEFF","").replaceFirst("","");
+ return line;
+ }
+
+ /**
+ * read a csv file and puts its content in list of string arrays (without the empty lines)
+ * @param filePath - the path of file to read
+ * @return the content of file
+ * @throws IOException
+ */
+ @Override
+ public List<String[]> readCsv(String filePath) throws IOException {
+ CSVReader reader = new CSVReader(new FileReader(filePath));
+ return readCsv(reader);
+ }
+
+ @Override
+ public List<String[]> readCsv(MultipartFile file) throws IOException {
+ CSVReader reader = new CSVReader(new InputStreamReader(file.getInputStream()));
+ return readCsv(reader);
+ }
+
+ private List<String[]> addLineWithoutSpaces(List<String[]> myEntries, String [] line){
+ line = Arrays.stream(line).filter(x -> !"".equals(x)).toArray(String[]::new);
+ if(line.length > 0)
+ myEntries.add(line);
+ return myEntries;
+ }
+
+
+ private List<String[]> readCsv(CSVReader reader) throws IOException {
+ try {
+ List<String[]> myEntries = new ArrayList<>() ;
+ String [] line;
+ Boolean firstLine = true;
+ while ((line = reader.readNext())!= null) {
+ if (firstLine) {
+ line = removeBOMFromCsv(line);
+ firstLine = false;
+ }
+ myEntries = addLineWithoutSpaces(myEntries, line);
+ }
+ return myEntries;
+ }
+ catch (Exception e){
+ logger.error("error during reading CSV file. exception:" + e.getMessage());
+ throw e;
+ }
+
+ }
+
+ /**
+ * main function that call to the recursive function with initial parameters
+ * @param myEntries - the matrix with file content
+ * @return the json
+ * @throws IOException
+ * @throws InstantiationException
+ * @throws IllegalAccessException
+ */
+ @Override
+ public JSONObject convertCsvToJson (List<String[]> myEntries) throws InstantiationException, IllegalAccessException {
+ try {
+ return buildJSON(myEntries, 0, 0, myEntries.size(), JSONObject.class);
+ }
+ catch (Exception e){
+ logger.error("error during parsing CSV file. exception:" + e.getMessage());
+ throw e;
+ }
+
+ }
+
+ /**
+ * it goes over the matrix column while the values are the same and returns the index of changed value
+ * @param myEntries the matrix
+ * @param i row index refer to the whole matrix
+ * @param j column index
+ * @param numLines the length of the current inner matrix
+ * @param startLine row index of inner matrix
+ * @return the index of changed line
+ */
+ private int findIndexOfChangedLine(List<String[]> myEntries, final int i, final int j, final int numLines, final int startLine) {
+ int k;
+ for(k = 0; k + i - startLine < numLines && myEntries.get(i)[j].equals(myEntries.get(k + i)[j]) ; k++);
+ return k;
+ }
+
+ /**
+ * check in array if its first element or if the key already exist in the previous item
+ * @param jsonArray - the array to search in
+ * @param key - the key to check
+ * @return if exists or first element return true, otherwise- false
+ */
+ private Boolean keyExistsOrFirstElement( JSONArray jsonArray,String key){
+ Boolean exists = false;
+ Boolean first = false;
+ JSONObject lastItem = lastItemInArray(jsonArray);
+ if (lastItem == null) {
+ first = true;
+ }
+ else {
+ if (lastItem.has(key)) {
+ exists = true;
+ }
+ }
+ return exists||first;
+ }
+
+ /**
+ * return last json in json array
+ * @param jsonArray
+ * @return last item or null if the array is empty
+ */
+ private JSONObject lastItemInArray(JSONArray jsonArray){
+ JSONObject lastItem = null;
+ if(jsonArray.length()>0) {
+ lastItem = (JSONObject) jsonArray.get(jsonArray.length() - 1);
+ }
+ return lastItem;
+ }
+
+ /**
+ * append current json to the main json
+ * @param json - the main json to append to it
+ * @param key - key to append
+ * @param values - value(s) to append
+ * @param <T> can be JSONObject or JSONArray
+ * @param <E> string or jsonObject or jsonArray
+ * @return json after put
+ * @throws IllegalAccessException
+ * @throws InstantiationException
+ */
+ private <T, E> T putJson(T json, String key, E values) throws IllegalAccessException, InstantiationException {
+ if (json instanceof JSONArray){
+ JSONArray currentJson= ((JSONArray)json);
+ if (values == null) //array of strings (for last item)
+ {
+ currentJson.put(key);
+ }
+ else {
+ if (keyExistsOrFirstElement(currentJson, key)) {
+ currentJson.put(new JSONObject().put(key, values));
+ } else {
+ JSONObject lastItem = lastItemInArray(currentJson);
+ lastItem.put(key, values);
+ }
+ }
+ }
+ if (json instanceof JSONObject){
+ if (values == null)
+ throw new BadRequestException("Invalid csv file");
+ ((JSONObject)json).put(key,values);
+ }
+ return json;
+ }
+
+
+ /**
+ * recursive function to build JSON. Each time it counts the same values in left and send the smaller matrix
+ * (until the changed value) to the next time.
+ *
+ * @param myEntries - the whole matrix
+ * @param i- row index of the whole matrix
+ * @param j - column index
+ * @param numLines - number of lines of inner matrix (num of same values in the left column)
+ * @param clazz JSONArray or JSONObject
+ * @param <T> JSONArray or JSONObject
+ * @return the json object
+ * @throws IllegalAccessException
+ * @throws InstantiationException
+ */
+ private <T> T buildJSON(List<String[]> myEntries, int i, final int j, final int numLines, Class<T> clazz) throws IllegalAccessException, InstantiationException {
+ logger.debug(EELFLoggerDelegate.debugLogger, "start {}({}, {}, {})", getMethodName(), i, j, numLines);
+ T json = clazz.newInstance();
+ int startLine = i;
+ while(i < numLines + startLine){
+ String[] currentRow = myEntries.get(i);
+ int length = currentRow.length;
+ int currentDuplicateRows = findIndexOfChangedLine(myEntries,i,j,numLines, startLine);
+ String key = currentRow[j];
+ if (j == length-1) {
+ json = putJson(json,currentRow[j],null);
+
+ }
+ else
+ {
+ if (key.matches(arrayRegex)){
+ JSONArray arrayObjects = buildJSON(myEntries, i, j + 1, currentDuplicateRows, JSONArray.class);
+ json = putJson(json,key.replaceAll("\\[","").replaceAll("]",""),arrayObjects);
+ }
+ else {
+ if (j < length - 2) {
+ json = putJson(json, currentRow[j], buildJSON(myEntries, i, j + 1, currentDuplicateRows, JSONObject.class));
+ }
+ else
+ {
+ if (j == length - 2)//last object
+ {
+ if(currentDuplicateRows > 1) {
+ throw new BadRequestException("Invalid csv file");
+ }
+ json = putJson(json, currentRow[j], currentRow[j + 1]);
+ }
+ }
+ }
+ }
+ i += currentDuplicateRows;
+ }
+ logger.debug(EELFLoggerDelegate.debugLogger, "end {} json = {}", getMethodName(), json);
+ return json;
+ }
+
+}
+
Code Review / vid.git / commitdiff