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/******************************************************************************
* Copyright 2009-2018 Exactpro (Exactpro Systems Limited)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.exactpro.sf.aml.iomatrix;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.util.Arrays;
import java.util.NoSuchElementException;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import com.csvreader.CsvReader;
import com.exactpro.sf.util.UnicodeReader;
public class CSVMatrixReader implements IMatrixReader {
private final CsvReader reader;
private boolean hasNext;
private int lineNumber;
public CSVMatrixReader(String fileName) throws IOException {
this(fileName, determineCSVDelimiter(new FileInputStream(fileName), true));
}
public CSVMatrixReader(String fileName, char delimiter) throws IOException {
this(new FileInputStream(fileName), delimiter, "UTF-8");
}
public CSVMatrixReader(String fileName, String encoding) throws IOException {
this(new FileInputStream(fileName), determineCSVDelimiter(new FileInputStream(fileName), true), encoding);
}
public CSVMatrixReader(String fileName, char delimiter, String encoding) throws IOException {
this(new FileInputStream(fileName), delimiter, encoding);
}
public CSVMatrixReader(InputStream inputStream) throws IOException {
this(inputStream = wrappedStream(inputStream), determineCSVDelimiter(inputStream, false), "UTF-8");
}
public CSVMatrixReader(InputStream inputStream, String encoding) throws IOException {
this(inputStream = wrappedStream(inputStream), determineCSVDelimiter(inputStream, false), encoding);
}
public CSVMatrixReader(InputStream inputStream, char delimiter) throws IOException {
this(inputStream, delimiter, "UTF-8");
}
public CSVMatrixReader(InputStream inputStream, char delimiter, String encoding) throws IOException {
Reader rdr = new UnicodeReader(inputStream, encoding);
reader = new CsvReader(rdr);
reader.setDelimiter(delimiter);
reader.setSkipEmptyRecords(false);
reader.setTrimWhitespace(true);
readRecord();
}
@Override
public void close() throws Exception {
reader.close();
}
@Override
public SimpleCell[] readCells() throws IOException, NoSuchElementException {
String[] cells = read();
SimpleCell[] simpleCells = new SimpleCell[cells.length];
int counter = 0;
for (String s : cells) {
simpleCells[counter++] = new SimpleCell(s, lineNumber);
}
return simpleCells;
}
@Override
public String[] read() throws IOException, NoSuchElementException {
if (!hasNext()) {
throw new NoSuchElementException();
}
String[] values = reader.getValues();
readRecord();
lineNumber++;
// drop all values after last non-empty cell
// otherwise a lot of empty (but styled) cells will be returned
int lastNonEmptyCellIdx = ArrayUtils.INDEX_NOT_FOUND;
for (int i = values.length - 1; i >= 0; i--) {
if (StringUtils.isNotBlank(values[i])) {
lastNonEmptyCellIdx = i;
break;
}
}
if(lastNonEmptyCellIdx == ArrayUtils.INDEX_NOT_FOUND) {
return ArrayUtils.EMPTY_STRING_ARRAY;
}
if(values.length != lastNonEmptyCellIdx + 1) {
values = Arrays.copyOf(values, lastNonEmptyCellIdx + 1);
}
for (int i=0; i
