/**
* 次のレコードの有無を返す。
*
* @return
*/
public boolean next() {
if (!iter.hasNext() && !EOF) {
try {
iter = readBuffer().iterator();
} catch (IOException ioe) {
ioe.printStackTrace();
return false;
}
}
if (iter.hasNext()) {
CSVLineParser parser = (CSVLineParser) iter.next();
defaultString = parser.getDefaultString();
currentRow = new CSVRecordMap();
String[] cols = parser.getSeparatedValues();
for (int i = 0; i < cols.length; i++) currentRow.put(colmunName[i], cols[i]);
currentRowNum++;
return true;
} else {
defaultString = null;
currentRow = null;
return false;
}
}
private CSVLineParser readLine(BufferedReader br, CSVLineParser parser) throws IOException {
String line = br.readLine();
readIndex++;
if (line != null && !parser.appendString(line).isCorrectRecord()) {
return readLine(br, parser.appendString(System.getProperty("line.separator")));
}
return parser;
}
/**
* ファイルの先頭行よりタイトルを読み込みます
*
* @return
* @throws IOException
*/
public CSVReader preLoadTitleRow() throws IOException {
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream(file), encode));
CSVLineParser parser = readLine(br, new CSVLineParser());
offset = readIndex;
colmunName = parser.getSeparatedValues();
} finally {
if (br != null) br.close();
}
return this;
}
private List readBuffer() throws IOException {
List result = new LinkedList();
BufferedReader br = null;
readIndex = 0;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream(file), encode));
seekOffset(br);
while (result.size() < readBuffer) {
CSVLineParser record = readLine(br, new CSVLineParser());
if (EOF = record.isNull()) break;
else result.add(record);
}
offset = readIndex;
} finally {
if (br != null) br.close();
}
return result;
}
