/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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 org.apache.poi.xssf.streaming;
import java.io.*;
import java.util.Iterator;
import java.util.TreeMap;
import java.util.Map;
import org.apache.poi.ss.SpreadsheetVersion;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.ss.util.SheetUtil;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.hssf.util.PaneInformation;
import org.apache.poi.ss.util.CellRangeAddress;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTSheetFormatPr;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTWorksheet;
/**
* Streaming version of XSSFSheet implementing the "BigGridDemo" strategy.
*
* @author Alex Geller, Four J's Development Tools
*/
public class SXSSFSheet implements Sheet, Cloneable
{
SXSSFWorkbook _workbook;
XSSFSheet _sh;
TreeMap
* The maximum column width for an individual cell is 255 characters.
* This value represents the number of characters that can be displayed
* in a cell that is formatted with the standard font.
*
* When true a summary row is inserted below the detailed data being summarized and a
* new outline level is established on that row.
*
* When false a summary row is inserted above the detailed data being summarized and a new outline level
* is established on that row.
*
* When true a summary column is inserted to the right of the detailed data being summarized
* and a new outline level is established on that column.
*
* When false a summary column is inserted to the left of the detailed data being
* summarized and a new outline level is established on that column.
*
* When true a summary row is inserted below the detailed data being summarized and a
* new outline level is established on that row.
*
* When false a summary row is inserted above the detailed data being summarized and a new outline level
* is established on that row.
*
* When true a summary column is inserted to the right of the detailed data being summarized
* and a new outline level is established on that column.
*
* When false a summary column is inserted to the left of the detailed data being
* summarized and a new outline level is established on that column.
* false
if the column is visible
*/
public boolean isColumnHidden(int columnIndex)
{
return _sh.isColumnHidden(columnIndex);
}
/**
* Set the width (in units of 1/256th of a character width)
* true
if the sheet displays Automatic Page Breaks.
*/
public void setAutobreaks(boolean value)
{
_sh.setAutobreaks(value);
}
/**
* Set whether to display the guts or not
*
* @param value - guts or no guts
*/
public void setDisplayGuts(boolean value)
{
_sh.setDisplayGuts(value);
}
/**
* Set whether the window should show 0 (zero) in cells containing zero value.
* When false, cells with zero value appear blank instead of showing the number zero.
*
* @param value whether to display or hide all zero values on the worksheet
*/
public void setDisplayZeros(boolean value)
{
_sh.setDisplayZeros(value);
}
/**
* Gets the flag indicating whether the window should show 0 (zero) in cells containing zero value.
* When false, cells with zero value appear blank instead of showing the number zero.
*
* @return whether all zero values on the worksheet are displayed
*/
public boolean isDisplayZeros()
{
return _sh.isDisplayZeros();
}
/**
* Sets whether the worksheet is displayed from right to left instead of from left to right.
*
* @param value true for right to left, false otherwise.
*/
public void setRightToLeft(boolean value)
{
_sh.setRightToLeft(value);
}
/**
* Whether the text is displayed in right-to-left mode in the window
*
* @return whether the text is displayed in right-to-left mode in the window
*/
public boolean isRightToLeft()
{
return _sh.isRightToLeft();
}
/**
* Flag indicating whether the Fit to Page print option is enabled.
*
* @param value true
if the Fit to Page print option is enabled.
*/
public void setFitToPage(boolean value)
{
_sh.setFitToPage(value);
}
/**
* Flag indicating whether summary rows appear below detail in an outline, when applying an outline.
*
* true
if row summaries appear below detail in the outline
*/
public void setRowSumsBelow(boolean value)
{
_sh.setRowSumsBelow(value);
}
/**
* Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.
*
* true
if col summaries appear right of the detail in the outline
*/
public void setRowSumsRight(boolean value)
{
_sh.setRowSumsRight(value);
}
/**
* Flag indicating whether the sheet displays Automatic Page Breaks.
*
* @return true
if the sheet displays Automatic Page Breaks.
*/
public boolean getAutobreaks()
{
return _sh.getAutobreaks();
}
/**
* Get whether to display the guts or not,
* default value is true
*
* @return boolean - guts or no guts
*/
public boolean getDisplayGuts()
{
return _sh.getDisplayGuts();
}
/**
* Flag indicating whether the Fit to Page print option is enabled.
*
* @return true
if the Fit to Page print option is enabled.
*/
public boolean getFitToPage()
{
return _sh.getFitToPage();
}
/**
* Flag indicating whether summary rows appear below detail in an outline, when applying an outline.
*
* true
if row summaries appear below detail in the outline
*/
public boolean getRowSumsBelow()
{
return _sh.getRowSumsBelow();
}
/**
* Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.
*
* true
if col summaries appear right of the detail in the outline
*/
public boolean getRowSumsRight()
{
return _sh.getRowSumsRight();
}
/**
* Gets the flag indicating whether this sheet displays the lines
* between rows and columns to make editing and reading easier.
*
* @return true
if this sheet displays gridlines.
* @see #isPrintGridlines() to check if printing of gridlines is turned on or off
*/
public boolean isPrintGridlines()
{
return _sh.isPrintGridlines();
}
/**
* Sets the flag indicating whether this sheet should display the lines
* between rows and columns to make editing and reading easier.
* To turn printing of gridlines use {@link #setPrintGridlines(boolean)}
*
*
* @param show true
if this sheet should display gridlines.
* @see #setPrintGridlines(boolean)
*/
public void setPrintGridlines(boolean show)
{
_sh.setPrintGridlines(show);
}
/**
* Gets the print setup object.
*
* @return The user model for the print setup object.
*/
public PrintSetup getPrintSetup()
{
return _sh.getPrintSetup();
}
/**
* Gets the user model for the default document header.
*
* Note that XSSF offers more kinds of document headers than HSSF does
*
null
*/
public Header getHeader()
{
return _sh.getHeader();
}
/**
* Gets the user model for the default document footer.
*
* Note that XSSF offers more kinds of document footers than HSSF does.
*
* @return the document footer. Never null
*/
public Footer getFooter()
{
return _sh.getFooter();
}
/**
* Sets a flag indicating whether this sheet is selected.
** Note: multiple sheets can be selected, but only one sheet can be active at one time. *
* @param valuetrue
if this sheet is selected
* @see Workbook#setActiveSheet(int)
*/
public void setSelected(boolean value)
{
_sh.setSelected(value);
}
/**
* Gets the size of the margin in inches.
*
* @param margin which margin to get
* @return the size of the margin
*/
public double getMargin(short margin)
{
return _sh.getMargin(margin);
}
/**
* Sets the size of the margin in inches.
*
* @param margin which margin to get
* @param size the size of the margin
*/
public void setMargin(short margin, double size)
{
_sh.setMargin(margin,size);
}
/**
* Answer whether protection is enabled or disabled
*
* @return true => protection enabled; false => protection disabled
*/
public boolean getProtect()
{
return _sh.getProtect();
}
/**
* Sets the protection enabled as well as the password
* @param password to set for protection. Pass null
to remove protection
*/
public void protectSheet(String password)
{
_sh.protectSheet(password);
}
/**
* Answer whether scenario protection is enabled or disabled
*
* @return true => protection enabled; false => protection disabled
*/
public boolean getScenarioProtect()
{
return _sh.getScenarioProtect();
}
/**
* Sets the zoom magnication for the sheet. The zoom is expressed as a
* fraction. For example to express a zoom of 75% use 3 for the numerator
* and 4 for the denominator.
*
* @param numerator The numerator for the zoom magnification.
* @param denominator The denominator for the zoom magnification.
*/
public void setZoom(int numerator, int denominator)
{
_sh.setZoom(numerator,denominator);
}
/**
* The top row in the visible view when the sheet is
* first viewed after opening it in a viewer
*
* @return short indicating the rownum (0 based) of the top row
*/
public short getTopRow()
{
return _sh.getTopRow();
}
/**
* The left col in the visible view when the sheet is
* first viewed after opening it in a viewer
*
* @return short indicating the rownum (0 based) of the top row
*/
public short getLeftCol()
{
return _sh.getLeftCol();
}
/**
* Sets desktop window pane display area, when the
* file is first opened in a viewer.
*
* @param toprow the top row to show in desktop window pane
* @param leftcol the left column to show in desktop window pane
*/
public void showInPane(short toprow, short leftcol)
{
_sh.showInPane(toprow, leftcol);
}
/**
* Control if Excel should be asked to recalculate all formulas when the
* workbook is opened, via the "sheetCalcPr fullCalcOnLoad" option.
* Calculating the formula values with {@link org.apache.poi.ss.usermodel.FormulaEvaluator} is the
* recommended solution, but this may be used for certain cases where
* evaluation in POI is not possible.
*/
public void setForceFormulaRecalculation(boolean value) {
_sh.setForceFormulaRecalculation(value);
}
/**
* Whether Excel will be asked to recalculate all formulas when the
* workbook is opened.
*/
public boolean getForceFormulaRecalculation() {
return _sh.getForceFormulaRecalculation();
}
/**
* Shifts rows between startRow and endRow n number of rows.
* If you use a negative number, it will shift rows up.
* Code ensures that rows don't wrap around.
*
* Calls shiftRows(startRow, endRow, n, false, false);
*
* * Additionally shifts merged regions that are completely defined in these * rows (ie. merged 2 cells on a row to be shifted). * @param startRow the row to start shifting * @param endRow the row to end shifting * @param n the number of rows to shift */ public void shiftRows(int startRow, int endRow, int n) { throw new RuntimeException("NotImplemented"); } /** * Shifts rows between startRow and endRow n number of rows. * If you use a negative number, it will shift rows up. * Code ensures that rows don't wrap around * *
* Additionally shifts merged regions that are completely defined in these * rows (ie. merged 2 cells on a row to be shifted). *
* @param startRow the row to start shifting * @param endRow the row to end shifting * @param n the number of rows to shift * @param copyRowHeight whether to copy the row height during the shift * @param resetOriginalRowHeight whether to set the original row's height to the default */ public void shiftRows(int startRow, int endRow, int n, boolean copyRowHeight, boolean resetOriginalRowHeight) { throw new RuntimeException("NotImplemented"); } /** * Creates a split (freezepane). Any existing freezepane or split pane is overwritten. * @param colSplit Horizonatal position of split. * @param rowSplit Vertical position of split. * @param leftmostColumn Left column visible in right pane. * @param topRow Top row visible in bottom pane */ public void createFreezePane(int colSplit, int rowSplit, int leftmostColumn, int topRow) { _sh.createFreezePane(colSplit, rowSplit, leftmostColumn, topRow); } /** * Creates a split (freezepane). Any existing freezepane or split pane is overwritten. * @param colSplit Horizonatal position of split. * @param rowSplit Vertical position of split. */ public void createFreezePane(int colSplit, int rowSplit) { _sh.createFreezePane(colSplit,rowSplit); } /** * Creates a split pane. Any existing freezepane or split pane is overwritten. * @param xSplitPos Horizonatal position of split (in 1/20th of a point). * @param ySplitPos Vertical position of split (in 1/20th of a point). * @param topRow Top row visible in bottom pane * @param leftmostColumn Left column visible in right pane. * @param activePane Active pane. One of: PANE_LOWER_RIGHT, * PANE_UPPER_RIGHT, PANE_LOWER_LEFT, PANE_UPPER_LEFT * @see #PANE_LOWER_LEFT * @see #PANE_LOWER_RIGHT * @see #PANE_UPPER_LEFT * @see #PANE_UPPER_RIGHT */ public void createSplitPane(int xSplitPos, int ySplitPos, int leftmostColumn, int topRow, int activePane) { _sh.createSplitPane(xSplitPos, ySplitPos, leftmostColumn, topRow, activePane); } /** * Returns the information regarding the currently configured pane (split or freeze) * * @return null if no pane configured, or the pane information. */ public PaneInformation getPaneInformation() { return _sh.getPaneInformation(); } /** * Sets whether the gridlines are shown in a viewer * * @param show whether to show gridlines or not */ public void setDisplayGridlines(boolean show) { _sh.setDisplayGridlines(show); } /** * Returns if gridlines are displayed * * @return whether gridlines are displayed */ public boolean isDisplayGridlines() { return _sh.isDisplayGridlines(); } /** * Sets whether the formulas are shown in a viewer * * @param show whether to show formulas or not */ public void setDisplayFormulas(boolean show) { _sh.setDisplayFormulas(show); } /** * Returns if formulas are displayed * * @return whether formulas are displayed */ public boolean isDisplayFormulas() { return _sh.isDisplayFormulas(); } /** * Sets whether the RowColHeadings are shown in a viewer * * @param show whether to show RowColHeadings or not */ public void setDisplayRowColHeadings(boolean show) { _sh.setDisplayRowColHeadings(show); } /** * Returns if RowColHeadings are displayed. * @return whether RowColHeadings are displayed */ public boolean isDisplayRowColHeadings() { return _sh.isDisplayRowColHeadings(); } /** * Sets a page break at the indicated row * @param row FIXME: Document this! */ public void setRowBreak(int row) { _sh.setRowBreak(row); } /** * Determines if there is a page break at the indicated row * @param row FIXME: Document this! * @return FIXME: Document this! */ public boolean isRowBroken(int row) { return _sh.isRowBroken(row); } /** * Removes the page break at the indicated row * @param row */ public void removeRowBreak(int row) { _sh.removeRowBreak(row); } /** * Retrieves all the horizontal page breaks * @return all the horizontal page breaks, or null if there are no row page breaks */ public int[] getRowBreaks() { return _sh.getRowBreaks(); } /** * Retrieves all the vertical page breaks * @return all the vertical page breaks, or null if there are no column page breaks */ public int[] getColumnBreaks() { return _sh.getColumnBreaks(); } /** * Sets a page break at the indicated column * @param column */ public void setColumnBreak(int column) { _sh.setColumnBreak(column); } /** * Determines if there is a page break at the indicated column * @param column FIXME: Document this! * @return FIXME: Document this! */ public boolean isColumnBroken(int column) { return _sh.isColumnBroken(column); } /** * Removes a page break at the indicated column * @param column */ public void removeColumnBreak(int column) { _sh.removeColumnBreak(column); } /** * Expands or collapses a column group. * * @param columnNumber One of the columns in the group. * @param collapsed true = collapse group, false = expand group. */ public void setColumnGroupCollapsed(int columnNumber, boolean collapsed) { _sh.setColumnGroupCollapsed(columnNumber, collapsed); } /** * Create an outline for the provided column range. * * @param fromColumn beginning of the column range. * @param toColumn end of the column range. */ public void groupColumn(int fromColumn, int toColumn) { _sh.groupColumn(fromColumn,toColumn); } /** * Ungroup a range of columns that were previously groupped * * @param fromColumn start column (0-based) * @param toColumn end column (0-based) */ public void ungroupColumn(int fromColumn, int toColumn) { _sh.ungroupColumn(fromColumn, toColumn); } /** * Tie a range of rows together so that they can be collapsed or expanded * *
* Please note the rows being grouped must be in the current window, * if the rows are already flushed then groupRow has no effect. *
** Correct code: *
* Workbook wb = new SXSSFWorkbook(100); // keep 100 rows in memory
* Sheet sh = wb.createSheet();
* for (int rownum = 0; rownum < 1000; rownum++) {
* Row row = sh.createRow(rownum);
* if(rownum == 200) {
* sh.groupRow(100, 200);
* }
* }
*
*
*
* * Incorrect code: *
* Workbook wb = new SXSSFWorkbook(100); // keep 100 rows in memory
* Sheet sh = wb.createSheet();
* for (int rownum = 0; rownum < 1000; rownum++) {
* Row row = sh.createRow(rownum);
* }
* sh.groupRow(100, 200); // the rows in the range [100, 200] are already flushed and groupRows has no effect
*
*
*
*
* @param fromRow start row (0-based)
* @param toRow end row (0-based)
*/
public void groupRow(int fromRow, int toRow)
{
for(SXSSFRow row : _rows.subMap(fromRow, toRow + 1).values()){
int level = row.getOutlineLevel() + 1;
row.setOutlineLevel(level);
if(level > outlineLevelRow) outlineLevelRow = level;
}
CTWorksheet ct = _sh.getCTWorksheet();
CTSheetFormatPr pr = ct.isSetSheetFormatPr() ?
ct.getSheetFormatPr() :
ct.addNewSheetFormatPr();
if(outlineLevelRow > 0) pr.setOutlineLevelRow((short)outlineLevelRow);
}
/**
* Ungroup a range of rows that were previously groupped
*
* @param fromRow start row (0-based)
* @param toRow end row (0-based)
*/
public void ungroupRow(int fromRow, int toRow)
{
_sh.ungroupRow(fromRow, toRow);
}
/**
* Set view state of a groupped range of rows
*
* @param row start row of a groupped range of rows (0-based)
* @param collapse whether to expand/collapse the detail rows
*/
public void setRowGroupCollapsed(int row, boolean collapse)
{
//_sh.setRowGroupCollapsed(row, collapse);
throw new RuntimeException("Not Implemented");
}
/**
* Sets the default column style for a given column. POI will only apply this style to new cells added to the sheet.
*
* @param column the column index
* @param style the style to set
*/
public void setDefaultColumnStyle(int column, CellStyle style)
{
_sh.setDefaultColumnStyle(column, style);
}
/**
* Adjusts the column width to fit the contents.
*
* * This process can be relatively slow on large sheets, so this should * normally only be called once per column, at the end of your * processing. *
* You can specify whether the content of merged cells should be considered or ignored. * Default is to ignore merged cells. * * @param column the column index */ public void autoSizeColumn(int column) { autoSizeColumn(column, false); } /** * Adjusts the column width to fit the contents. ** This process can be relatively slow on large sheets, so this should * normally only be called once per column, at the end of your * processing. *
* You can specify whether the content of merged cells should be considered or ignored. * Default is to ignore merged cells. * * @param column the column index * @param useMergedCells whether to use the contents of merged cells when calculating the width of the column */ public void autoSizeColumn(int column, boolean useMergedCells) { double width = SheetUtil.getColumnWidth(this, column, useMergedCells); if (width != -1) { width *= 256; int maxColumnWidth = 255*256; // The maximum column width for an individual cell is 255 characters if (width > maxColumnWidth) { width = maxColumnWidth; } setColumnWidth(column, (int)(width)); } } /** * Returns cell comment for the specified row and column * * @return cell comment ornull
if not found
*/
public Comment getCellComment(int row, int column)
{
return _sh.getCellComment(row, column);
}
/**
* Creates the top-level drawing patriarch.
*
* @return The new drawing patriarch.
*/
public Drawing createDrawingPatriarch()
{
return _sh.createDrawingPatriarch();
}
/**
* Return the parent workbook
*
* @return the parent workbook
*/
public Workbook getWorkbook()
{
return _workbook;
}
/**
* Returns the name of this sheet
*
* @return the name of this sheet
*/
public String getSheetName()
{
return _sh.getSheetName();
}
/**
* Note - this is not the same as whether the sheet is focused (isActive)
* @return true
if this sheet is currently selected
*/
public boolean isSelected()
{
return _sh.isSelected();
}
/**
* Sets array formula to specified region for result.
*
* @param formula text representation of the formula
* @param range Region of array formula for result.
* @return the {@link CellRange} of cells affected by this change
*/
public CellRange extends Cell> setArrayFormula(String formula, CellRangeAddress range)
{
return _sh.setArrayFormula(formula, range);
}
/**
* Remove a Array Formula from this sheet. All cells contained in the Array Formula range are removed as well
*
* @param cell any cell within Array Formula range
* @return the {@link CellRange} of cells affected by this change
*/
public CellRange extends Cell> removeArrayFormula(Cell cell)
{
return _sh.removeArrayFormula(cell);
}
public DataValidationHelper getDataValidationHelper()
{
return _sh.getDataValidationHelper();
}
/**
* Creates a data validation object
* @param dataValidation The Data validation object settings
*/
public void addValidationData(DataValidation dataValidation)
{
_sh.addValidationData(dataValidation);
}
/**
* Enable filtering for a range of cells
*
* @param range the range of cells to filter
*/
public AutoFilter setAutoFilter(CellRangeAddress range)
{
return _sh.setAutoFilter(range);
}
public SheetConditionalFormatting getSheetConditionalFormatting(){
return _sh.getSheetConditionalFormatting();
}
@Override
public CellRangeAddress getRepeatingRows() {
return _sh.getRepeatingRows();
}
@Override
public CellRangeAddress getRepeatingColumns() {
return _sh.getRepeatingColumns();
}
//end of interface implementation
/**
* Specifies how many rows can be accessed at most via getRow().
* When a new node is created via createRow() and the total number
* of unflushed records would exeed the specified value, then the
* row with the lowest index value is flushed and cannot be accessed
* via getRow() anymore.
* A value of -1 indicates unlimited access. In this case all
* records that have not been flushed by a call to flush() are available
* for random access.
* A value of 0 is not allowed because it would flush any newly created row
* without having a chance to specify any cells.
*/
public void setRandomAccessWindowSize(int value)
{
if(value == 0 || value < -1) {
throw new IllegalArgumentException("RandomAccessWindowSize must be either -1 or a positive integer");
}
_randomAccessWindowSize=value;
}
/**
* Specifies how many rows can be accessed at most via getRow().
* The exeeding rows (if any) are flushed to the disk while rows
* with lower index values are flushed first.
*/
public void flushRows(int remaining) throws IOException
{
while(_rows.size() > remaining) flushOneRow();
}
/**
* Flush all rows to disk. After this call no rows can be accessed via getRow()
*
* @throws IOException
*/
public void flushRows() throws IOException
{
this.flushRows(0);
}
private void flushOneRow() throws IOException
{
Integer firstRowNum = _rows.firstKey();
if (firstRowNum!=null) {
int rowIndex = firstRowNum.intValue();
SXSSFRow row = _rows.get(firstRowNum);
_writer.writeRow(rowIndex, row);
_rows.remove(firstRowNum);
}
}
public void changeRowNum(SXSSFRow row, int newRowNum)
{
removeRow(row);
_rows.put(new Integer(newRowNum),row);
}
public int getRowNum(SXSSFRow row)
{
for(Iterator