/** Presents the given cell feed as a map from row, column pair to CellEntry. */
private void refreshCachedData() throws IOException, ServiceException {
CellQuery cellQuery = new CellQuery(backingEntry.getCellFeedUrl());
cellQuery.setReturnEmpty(true);
this.cellFeed = spreadsheetService.getFeed(cellQuery, CellFeed.class);
// A subtlety: Spreadsheets row,col numbers are 1-based whereas the
// cellEntries array is 0-based. Rather than wasting an extra row and
// column worth of cells in memory, we adjust accesses by subtracting
// 1 from each row or column number.
cellEntries = new CellEntry[rows][columns];
for (CellEntry cellEntry : cellFeed.getEntries()) {
Cell cell = cellEntry.getCell();
cellEntries[cell.getRow() - 1][cell.getCol() - 1] = cellEntry;
}
}
public ImportClient(String username, String password, int itemsPerBatch, String spreadsheetName)
throws Exception {
ITEMS_PER_BATCH = itemsPerBatch;
factory = FeedURLFactory.getDefault();
service = new SpreadsheetService("Props-2-Xls");
service.setUserCredentials(username, password);
service.setProtocolVersion(
SpreadsheetService.Versions
.V1); // bug workaround! http://code.google.com/p/gdata-java-client/issues/detail?id=103
spreadsheet = getSpreadsheet(spreadsheetName);
backingEntry = spreadsheet.getDefaultWorksheet();
CellQuery cellQuery = new CellQuery(backingEntry.getCellFeedUrl());
cellQuery.setReturnEmpty(true);
CellFeed cellFeed = service.getFeed(cellQuery, CellFeed.class);
}
List<List<Object>> getRowsOfCells(
SpreadsheetService service,
WorksheetEntry worksheet,
int startRow, // 1-based
int rowCount)
throws IOException, ServiceException {
URL cellFeedUrl = worksheet.getCellFeedUrl();
int minRow = startRow;
int maxRow = Math.min(worksheet.getRowCount(), startRow + rowCount - 1);
int cols = worksheet.getColCount();
int rows = worksheet.getRowCount();
CellQuery cellQuery = new CellQuery(cellFeedUrl);
cellQuery.setMinimumRow(minRow);
cellQuery.setMaximumRow(maxRow);
cellQuery.setMaximumCol(cols);
cellQuery.setMaxResults(rows * cols);
cellQuery.setReturnEmpty(false);
CellFeed cellFeed = service.query(cellQuery, CellFeed.class);
List<CellEntry> cellEntries = cellFeed.getEntries();
List<List<Object>> rowsOfCells = new ArrayList<List<Object>>(rowCount);
for (CellEntry cellEntry : cellEntries) {
Cell cell = cellEntry.getCell();
if (cell != null) {
int row = cell.getRow() - startRow;
int col = cell.getCol() - 1;
while (row >= rowsOfCells.size()) {
rowsOfCells.add(new ArrayList<Object>());
}
List<Object> rowOfCells = rowsOfCells.get(row);
while (col >= rowOfCells.size()) {
rowOfCells.add(null);
}
rowOfCells.set(col, cell.getValue());
}
}
return rowsOfCells;
}
