public UIData getUIData() {
String forStr = getFor();
UIData forComp = (UIData) CoreComponentUtils.findComponent(forStr, this);
if (forComp == null) {
throw new IllegalArgumentException(
"could not find UIData referenced by attribute @for = '" + forStr + "'");
} else if (!(forComp instanceof UIData)) {
throw new IllegalArgumentException(
"uiComponent referenced by attribute @for = '"
+ forStr
+ "' must be of type "
+ UIData.class.getName()
+ ", not type "
+ forComp.getClass().getName());
}
// compare with cached DataModel to check for updates
if (_origDataModelHash != 0 && _origDataModelHash != forComp.getValue().hashCode()) {
reset();
}
if (!isIgnorePagination()
&& ((first != Integer.MIN_VALUE && first != forComp.getFirst())
|| (rows != Integer.MIN_VALUE && rows != forComp.getRows()))) {
reset();
}
Object value = forComp.getValue();
if (null != value) {
_origDataModelHash = forComp.getValue().hashCode();
}
return forComp;
}
/**
* Returns the number of rows to display by looking up the <code>UIData</code> component that this
* scroller is associated with. For the purposes of this demo, we are assuming the <code>UIData
* </code> to be child of <code>UIForm</code> component and not nested inside a custom
* NamingContainer.
*/
protected int getRowsPerPage(FacesContext context) {
String forValue = (String) getAttributes().get("for");
UIData uiData = (UIData) getUIData(context, forValue);
if (uiData == null) {
return 0;
}
return uiData.getRows();
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
rendererParamsNotNull(context, component);
if (!shouldEncodeChildren(component)) {
return;
}
UIData data = (UIData) component;
ResponseWriter writer = context.getResponseWriter();
// Iterate over the rows of data that are provided
int processed = 0;
int rowIndex = data.getFirst() - 1;
int rows = data.getRows();
List<Integer> bodyRows = getBodyRows(data);
boolean hasBodyRows = (bodyRows != null && !bodyRows.isEmpty());
boolean wroteTableBody = false;
if (!hasBodyRows) {
renderTableBodyStart(component, writer);
}
while (true) {
// Have we displayed the requested number of rows?
if ((rows > 0) && (++processed > rows)) {
break;
}
// Select the current row
data.setRowIndex(++rowIndex);
if (!data.isRowAvailable()) {
break; // Scrolled past the last row
}
// render any table body rows
if (hasBodyRows && bodyRows.contains(data.getRowIndex())) {
if (wroteTableBody) {
writer.endElement("tbody");
}
writer.startElement("tbody", data);
wroteTableBody = true;
}
// Render the beginning of this row
renderRowStart(component, writer);
// Render the row content
renderRow(context, component, null, writer);
// Render the ending of this row
renderRowEnd(component, writer);
}
renderTableBodyEnd(component, writer);
// Clean up after ourselves
data.setRowIndex(-1);
}
private void renderToHandler(OutputTypeHandler outputHandler, UIData uiData, FacesContext fc) {
try {
int rowIndex = 0;
int numberOfRowsToDisplay = 0;
if (!isIgnorePagination()) {
rowIndex = uiData.getFirst();
numberOfRowsToDisplay = uiData.getRows();
first = rowIndex;
rows = numberOfRowsToDisplay;
}
int countOfRowsDisplayed = 0;
uiData.setRowIndex(rowIndex);
String[] includeColumnsArray = null;
String includeColumns = getIncludeColumns();
if (includeColumns != null) includeColumnsArray = includeColumns.split(",");
List columns = getRenderedChildColumnsList(uiData);
// System.out.println("DataExporter.renderToHandler() columns.size: " + columns.size());
// write header
// System.out.println("DataExporter.renderToHandler() HEADERS");
processAllColumns(fc, outputHandler, columns, includeColumnsArray, -1, false);
// System.out.println("DataExporter.renderToHandler() ROWS");
while (uiData.isRowAvailable()) {
if (numberOfRowsToDisplay > 0 && countOfRowsDisplayed >= numberOfRowsToDisplay) {
break;
}
// render the child columns; each one in a td
processAllColumns(
fc, outputHandler, columns, includeColumnsArray, countOfRowsDisplayed, false);
// keep track of rows displayed
countOfRowsDisplayed++;
// maintain the row index property on the underlying UIData
// component
rowIndex++;
uiData.setRowIndex(rowIndex);
}
// reset the underlying UIData component
uiData.setRowIndex(-1);
// write footer
// System.out.println("DataExporter.renderToHandler() FOOTERS");
processAllColumns(
fc, outputHandler, columns, includeColumnsArray, countOfRowsDisplayed, true);
outputHandler.flushFile();
} catch (Exception e) {
log.error("renderToHandler()", e);
}
}
/**
* Scroll to the page that contains the specified row number.
*
* @param row Desired row number
*/
public void scroll(int row) {
int rows = data.getRows();
if (rows < 1) {
return; // Showing entire table already
}
if (row < 0) {
data.setFirst(0);
} else if (row >= data.getRowCount()) {
data.setFirst(data.getRowCount() - 1);
} else {
data.setFirst(row - (row % rows));
}
}
public void decode(FacesContext context, UIComponent component) {
String id = component.getClientId(context);
Map parameters = context.getExternalContext().getRequestParameterMap();
String response = (String) parameters.get(id);
String dataTableId = (String) get(context, component, "dataTableId");
Integer a = (Integer) get(context, component, "showpages");
int showpages = a == null ? 0 : a.intValue();
UIData data = (UIData) findComponent(context.getViewRoot(), getId(dataTableId, id), context);
int first = data.getFirst();
int itemcount = data.getRowCount();
int pagesize = data.getRows();
if (pagesize <= 0) {
pagesize = itemcount;
}
if (response == null) {
first = 0;
} else if ("<".equals(response)) {
first -= pagesize;
} else if (">".equals(response)) {
first += pagesize;
} else if ("<<".equals(response)) {
first -= pagesize * showpages;
} else if (">>".equals(response)) {
first += pagesize * showpages;
} else {
int page = 0; // default if cannot be parsed
try {
page = Integer.parseInt(response);
} catch (NumberFormatException ex) {
// do nothing, leave at zero
log.debug("do nothing, leave at zero");
}
first = (page - 1) * pagesize;
}
if (first + pagesize > itemcount) {
first = itemcount - pagesize;
}
if (first < 0) {
first = 0;
}
data.setFirst(first);
}
public int getCurrentPage(FacesContext context) {
String forValue = (String) getAttributes().get("for");
UIData uiData = (UIData) getUIData(context, forValue);
if (uiData == null) {
return 0;
}
int rowsPerPage = uiData.getRows();
// occasionally this object is invalided, and it longer has the current
// row. In these cases, get current row from ScrollerBean
Map sessionMap = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
RegistryObjectCollectionBean searchPanelBean =
(RegistryObjectCollectionBean) sessionMap.get("roCollection");
int currentRow = searchPanelBean.getScrollerBean().getCurrentRow();
uiData.setFirst(currentRow);
int result = currentRow / rowsPerPage + 1;
return result;
}
/**
* Returns the total number of pages in the result set based on <code>rows</code> and <code>
* rowCount</code> of <code>UIData</code> component that this scroller is associated with. For the
* purposes of this demo, we are assuming the <code>UIData</code> to be child of <code>UIForm
* </code> component and not nested inside a custom NamingContainer.
*/
protected int getTotalPages(FacesContext context) {
String forValue = (String) getAttributes().get("for");
UIData uiData = (UIData) getUIData(context, forValue);
if (uiData == null) {
return 0;
}
int rowsPerPage = uiData.getRows();
int totalRows = 0;
int result = 0;
/* replace with count from scrollerbean
totalRows = uiData.getRowCount();
*/
ScrollerBean sbean = RegistryObjectCollectionBean.getInstance().getScrollerBean();
totalRows = sbean.getTotalResultCount();
result = totalRows / rowsPerPage;
if (0 != (totalRows % rowsPerPage)) {
result++;
}
return result;
}
/** Scroll backwards to the previous page. */
public String previous() {
int first = data.getFirst();
scroll(first - data.getRows());
return (null);
}
/** Scroll forwards to the next page. */
public String next() {
int first = data.getFirst();
scroll(first + data.getRows());
return (null);
}
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
if ((context == null) || (component == null)) {
throw new NullPointerException(
Util.getExceptionMessageString(Util.NULL_PARAMETERS_ERROR_MESSAGE_ID));
}
if (log.isTraceEnabled()) {
log.trace("Begin encoding children " + component.getId());
}
if (!component.isRendered()) {
if (log.isTraceEnabled()) {
log.trace(
"No encoding necessary "
+ component.getId()
+ " since "
+ "rendered attribute is set to false ");
}
return;
}
UIData data = (UIData) component;
ValueBinding msgsBinding = component.getValueBinding("value");
List msgBeanList = (List) msgsBinding.getValue(context);
// Set up variables we will need
String columnClasses[] = getColumnClasses(data);
int columnStyle = 0;
int columnStyles = columnClasses.length;
String rowClasses[] = getRowClasses(data);
int rowStyles = rowClasses.length;
ResponseWriter writer = context.getResponseWriter();
Iterator kids = null;
Iterator grandkids = null;
// Iterate over the rows of data that are provided
int processed = 0;
int rowIndex = data.getFirst() - 1;
int rows = data.getRows();
int rowStyle = 0;
writer.startElement("tbody", component);
writer.writeText("\n", null);
int hideDivNo = 0;
while (true) {
// PrivateMessageDecoratedBean dmb = null;
// if(msgBeanList !=null && msgBeanList.size()>(rowIndex+1) &&
// rowIndex>=-1)
// {
// dmb = (PrivateMessageDecoratedBean)msgBeanList.get(rowIndex+1);
// }
// boolean hasChildBoolean = false;
// if(dmb != null)
// {
// for(int i=0; i<msgBeanList.size(); i++)
// {
// PrivateMessageDecoratedBean tempDmb =
// (PrivateMessageDecoratedBean)msgBeanList.get(i);
// if(tempDmb.getUiInReply() != null &&
// tempDmb.getUiInReply().getId().equals(dmb.getMsg().getId()))
// {
// hasChildBoolean = true;
// break;
// }
// }
// }
// Have we displayed the requested number of rows?
if ((rows > 0) && (++processed > rows)) {
break;
}
// Select the current row
data.setRowIndex(++rowIndex);
if (!data.isRowAvailable()) {
break; // Scrolled past the last row
}
PrivateMessageDecoratedBean dmb = null;
dmb = (PrivateMessageDecoratedBean) data.getRowData();
boolean hasChildBoolean = false;
if (dmb != null) {
// if dmb has depth = 0, check for children
if (dmb.getDepth() == 0) {
// first, get the index of the dmb
int index = -1;
for (int i = 0; i < msgBeanList.size(); i++) {
PrivateMessageDecoratedBean tempDmb = (PrivateMessageDecoratedBean) msgBeanList.get(i);
if (dmb.getMsg().getId().equals(tempDmb.getMsg().getId())) {
index = i;
break;
}
}
if (index < (msgBeanList.size() - 1) && index >= 0) {
PrivateMessageDecoratedBean nextDmb =
(PrivateMessageDecoratedBean) msgBeanList.get(index + 1);
if (nextDmb.getDepth() > 0) {
hasChildBoolean = true;
}
}
}
}
if (dmb != null && dmb.getDepth() > 0) {
writer.write(
"<tr style=\"display:none\" id=\"_id_"
+ new Integer(hideDivNo).toString()
+ "__hide_division_"
+ "\">");
} else {
writer.write("<tr>");
}
if (rowStyles > 0) {
writer.writeAttribute("class", rowClasses[rowStyle++], "rowClasses");
if (rowStyle >= rowStyles) {
rowStyle = 0;
}
}
writer.writeText("\n", null);
// Iterate over the child UIColumn components for each row
columnStyle = 0;
kids = getColumns(data);
while (kids.hasNext()) {
// Identify the next renderable column
UIColumn column = (UIColumn) kids.next();
// Render the beginning of this cell
writer.startElement("td", column);
if (columnStyles > 0) {
writer.writeAttribute("class", columnClasses[columnStyle++], "columnClasses");
if (columnStyle >= columnStyles) {
columnStyle = 0;
}
}
if (dmb != null && dmb.getDepth() > 0) {
if (column.getId().endsWith("_msg_subject")) {
StringBuilder indent = new StringBuilder();
int indentInt = dmb.getDepth() * 4;
for (int i = 0; i < indentInt; i++) {
indent.append(" ");
}
writer.write(indent.toString());
}
} else {
if (column.getId().endsWith("_msg_subject")) {
if (hasChildBoolean && dmb.getDepth() == 0) {
writer.write(
" <img src=\""
+ BARIMG
+ "\" style=\""
+ CURSOR
+ "\" id=\"_id_"
+ Integer.valueOf(hideDivNo).toString()
+ "__img_hide_division_\""
+ " onclick=\"");
int childNo = getTotalChildNo(dmb, msgBeanList);
String hideTr = "";
for (int i = 0; i < childNo; i++) {
hideTr +=
"javascript:showHideDiv('_id_"
+ (hideDivNo + i)
+ "', '"
+ RESOURCE_PATH
+ "');";
}
writer.write(hideTr);
writer.write("\" />");
}
}
}
// Render the contents of this cell by iterating over
// the kids of our kids
grandkids = getChildren(column);
while (grandkids.hasNext()) {
encodeRecursive(context, (UIComponent) grandkids.next());
}
// Render the ending of this cell
writer.endElement("td");
writer.writeText("\n", null);
}
// Render the ending of this row
writer.endElement("tr");
writer.writeText("\n", null);
if (dmb != null && dmb.getDepth() > 0) {
////
/*ValueBinding expandedBinding =
component.getValueBinding("expanded");
String expanded = "";
if(expandedBinding != null)
expanded = (String)expandedBinding.getValue(context);
if(expanded.equalsIgnoreCase("true"))
{*/
writer.write("<script type=\"text/javascript\">");
writer.write(" showHideDiv('_id_" + hideDivNo + "', '" + RESOURCE_PATH + "');");
writer.write("</script>");
////// }
hideDivNo++;
}
}
writer.endElement("tbody");
writer.writeText("\n", null);
// Clean up after ourselves
data.setRowIndex(-1);
if (log.isTraceEnabled()) {
log.trace("End encoding children " + component.getId());
}
}
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
String id = component.getClientId(context);
UIComponent parent = component;
while (!(parent instanceof UIForm)) {
parent = parent.getParent();
}
String formId = parent.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
String styleClass = (String) get(context, component, "styleClass");
String selectedStyleClass = (String) get(context, component, "selectedStyleClass");
String dataTableId = (String) get(context, component, "dataTableId");
String controlId = (String) get(context, component, "controlId");
Integer a = (Integer) get(context, component, "showpages");
int showpages = a == null ? 0 : a.intValue();
// find the component with the given ID
UIData data = (UIData) findComponent(context.getViewRoot(), getId(dataTableId, id), context);
int first = data.getFirst();
int itemcount = data.getRowCount();
int pagesize = data.getRows();
if (pagesize <= 0) {
pagesize = itemcount;
}
int pages;
int currentPage;
if (pagesize != 0) {
pages = itemcount / pagesize;
currentPage = first / pagesize;
if (itemcount % pagesize != 0) {
pages++;
}
} else {
pages = 1;
currentPage = 1;
}
if (first >= itemcount - pagesize) {
currentPage = pages - 1;
}
int startPage = 0;
int endPage = pages;
if (showpages > 0) {
startPage = (currentPage / showpages) * showpages;
endPage = Math.min(startPage + showpages, pages);
}
boolean showLinks = true;
Boolean showThem = (Boolean) get(context, component, "showLinks");
if (showThem != null) {
showLinks = showThem.booleanValue();
}
// links << < # # # > >>
if (showLinks) {
if (currentPage > 0) {
writeLink(writer, component, formId, controlId, "<", styleClass);
}
if (startPage > 0) {
writeLink(writer, component, formId, controlId, "<<", styleClass);
}
for (int i = startPage; i < endPage; i++) {
writeLink(
writer,
component,
formId,
controlId,
"" + (i + 1),
i == currentPage ? selectedStyleClass : styleClass);
}
if (endPage < pages) {
writeLink(writer, component, formId, controlId, ">>", styleClass);
}
if (first < itemcount - pagesize) {
writeLink(writer, component, formId, controlId, ">", styleClass);
}
}
// hidden field to hold result
writeHiddenField(writer, component, controlId, id);
}
