import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.el.ELContext;
import javax.el.ExpressionFactory;
import javax.el.MethodExpression;
import javax.el.ValueExpression;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import oracle.adf.controller.ControllerContext;
import oracle.adf.controller.TaskFlowId;
import oracle.adf.model.BindingContext;
import oracle.adf.model.binding.DCBindingContainer;
import oracle.adf.model.binding.DCIteratorBinding;
import oracle.adf.model.binding.DCParameter;
import oracle.adf.share.logging.ADFLogger;
import oracle.adf.view.rich.component.rich.data.RichTable;
import oracle.adf.view.rich.component.rich.input.RichInputText;
import oracle.adf.view.rich.component.rich.layout.RichPanelTabbed;
import oracle.adf.view.rich.component.rich.layout.RichShowDetailItem;
import oracle.adf.view.rich.context.AdfFacesContext;
import oracle.binding.AttributeBinding;
import oracle.binding.BindingContainer;
import oracle.binding.ControlBinding;
import oracle.binding.OperationBinding;
import oracle.jbo.ApplicationModule;
import oracle.jbo.Key;
import oracle.jbo.Row;
import oracle.jbo.uicli.binding.JUCtrlValueBinding;
import org.apache.myfaces.trinidad.render.ExtendedRenderKitService;
import org.apache.myfaces.trinidad.util.Service;
/**
* A series of convenience functions for dealing with ADF Bindings.
* Note: Updated for JDeveloper 11
*
* @author Duncan Mills
* @author Steve Muench
* @author Ric Smith
*
* $Id: ADFUtils.java 2513 2007-09-20 20:39:13Z ralsmith $.
*/
public class ADFUtils {
public static final ADFLogger LOGGER =
ADFLogger.createADFLogger(ADFUtils.class);
/**
* Get application module for an application module data control by name.
* @param name application module data control name
* @return ApplicationModule
*/
public static ApplicationModule getApplicationModuleForDataControl(String name) {
return (ApplicationModule)JSFUtils.resolveExpression("#{data." + name +
".dataProvider}");
}
/**
* A convenience method for getting the value of a bound attribute in the
* current page context programatically.
* @param attributeName of the bound value in the pageDef
* @return value of the attribute
*/
public static Object getBoundAttributeValue(String attributeName) {
return findControlBinding(attributeName).getInputValue();
}
/**
* A convenience method for setting the value of a bound attribute in the
* context of the current page.
* @param attributeName of the bound value in the pageDef
* @param value to set
*/
public static void setBoundAttributeValue(String attributeName,
Object value) {
findControlBinding(attributeName).setInputValue(value);
}
/**
* Returns the evaluated value of a pageDef parameter.
* @param pageDefName reference to the page definition file of the page with the parameter
* @param parameterName name of the pagedef parameter
* @return evaluated value of the parameter as a String
*/
public static Object getPageDefParameterValue(String pageDefName,
String parameterName) {
BindingContainer bindings = findBindingContainer(pageDefName);
DCParameter param =
((DCBindingContainer)bindings).findParameter(parameterName);
return param.getValue();
}
/**
* Convenience method to find a DCControlBinding as an AttributeBinding
* to get able to then call getInputValue() or setInputValue() on it.
* @param bindingContainer binding container
* @param attributeName name of the attribute binding.
* @return the control value binding with the name passed in.
*
*/
public static AttributeBinding findControlBinding(BindingContainer bindingContainer,
String attributeName) {
if (attributeName != null) {
if (bindingContainer != null) {
ControlBinding ctrlBinding =
bindingContainer.getControlBinding(attributeName);
if (ctrlBinding instanceof AttributeBinding) {
return (AttributeBinding)ctrlBinding;
}
}
}
return null;
}
/**
* Convenience method to find a DCControlBinding as a JUCtrlValueBinding
* to get able to then call getInputValue() or setInputValue() on it.
* @param attributeName name of the attribute binding.
* @return the control value binding with the name passed in.
*
*/
public static AttributeBinding findControlBinding(String attributeName) {
return findControlBinding(getBindingContainer(), attributeName);
}
/**
* Return the current page's binding container.
* @return the current page's binding container
*/
public static BindingContainer getBindingContainer() {
// return (BindingContainer)JSFUtils.resolveExpression("#{bindings}");
FacesContext fc = FacesContext.getCurrentInstance();
BindingContainer bindings =
(BindingContainer)fc.getApplication().evaluateExpressionGet(fc,
"#{bindings}",
BindingContainer.class);
return bindings;
}
/**
* Return the Binding Container as a DCBindingContainer.
* @return current binding container as a DCBindingContainer
*/
public static DCBindingContainer getDCBindingContainer() {
return (DCBindingContainer)getBindingContainer();
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iteratorName ADF iterator binding name
* @param valueAttrName name of the value attribute to use
* @param displayAttrName name of the attribute from iterator rows to display
* @return ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsForIterator(String iteratorName,
String valueAttrName,
String displayAttrName) {
return selectItemsForIterator(findIterator(iteratorName),
valueAttrName, displayAttrName);
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iteratorName ADF iterator binding name
* @param valueAttrName name of the value attribute to use
* @param displayAttrNames array of attribute names from iterator rows to display
* @return ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsForIterator(String iteratorName,
String valueAttrName,
String[] displayAttrNames) {
return selectItemsForIterator(findIterator(iteratorName),
valueAttrName, displayAttrNames);
}
/**
* Get a List of attributes as a Map (of name, value) for an iterator.
* @param iter iterator binding
* @param attrNames array of attribute names for attributes to be retrieved
* @return List of attribute values
*/
public static List<Map<String, Object>> attributesListForIterator(DCIteratorBinding iter,
String[] attrNames) {
List<Map<String, Object>> attributeList =
new ArrayList<Map<String, Object>>();
for (Row r : iter.getAllRowsInRange()) {
Map<String, Object> alist = new HashMap<String, Object>();
for (String aName : attrNames) {
alist.put(aName, r.getAttribute(aName));
}
attributeList.add(alist);
}
return attributeList;
}
/**
* Get a List of attributes as a Map (of name, value) for an iterator.
* @param iteratorName ADF iterator binding name
* @param attrNames array of attribute names for attributes to be retrieved
* @return List of attribute values for an iterator
*/
public static List<Map<String, Object>> attributeListForIterator(String iteratorName,
String[] attrNames) {
return attributesListForIterator(findIterator(iteratorName),
attrNames);
}
/**
* Get List of ADF Faces SelectItem for an iterator binding with description.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iteratorName ADF iterator binding name
* @param valueAttrName name of the value attribute to use
* @param displayAttrName name of the attribute from iterator rows to display
* @param descriptionAttrName name of the attribute to use for description
* @return ADF Faces SelectItem for an iterator binding with description
*/
public static List<SelectItem> selectItemsForIterator(String iteratorName,
String valueAttrName,
String displayAttrName,
String descriptionAttrName) {
return selectItemsForIterator(findIterator(iteratorName),
valueAttrName, displayAttrName,
descriptionAttrName);
}
/**
* Get List of attribute values for an iterator.
* @param iteratorName ADF iterator binding name
* @param valueAttrName value attribute to use
* @return List of attribute values for an iterator
*/
public static List attributeListForIterator(String iteratorName,
String valueAttrName) {
return attributeListForIterator(findIterator(iteratorName),
valueAttrName);
}
/**
* Get List of Key objects for rows in an iterator.
* @param iteratorName iterabot binding name
* @return List of Key objects for rows
*/
public static List<Key> keyListForIterator(String iteratorName) {
return keyListForIterator(findIterator(iteratorName));
}
/**
* Get List of Key objects for rows in an iterator.
* @param iter iterator binding
* @return List of Key objects for rows
*/
public static List<Key> keyListForIterator(DCIteratorBinding iter) {
List<Key> attributeList = new ArrayList<Key>();
for (Row r : iter.getAllRowsInRange()) {
attributeList.add(r.getKey());
}
return attributeList;
}
/**
* Get List of Key objects for rows in an iterator using key attribute.
* @param iteratorName iterator binding name
* @param keyAttrName name of key attribute to use
* @return List of Key objects for rows
*/
public static List<Key> keyAttrListForIterator(String iteratorName,
String keyAttrName) {
return keyAttrListForIterator(findIterator(iteratorName), keyAttrName);
}
/**
* Get List of Key objects for rows in an iterator using key attribute.
*
* @param iter iterator binding
* @param keyAttrName name of key attribute to use
* @return List of Key objects for rows
*/
public static List<Key> keyAttrListForIterator(DCIteratorBinding iter,
String keyAttrName) {
List<Key> attributeList = new ArrayList<Key>();
for (Row r : iter.getAllRowsInRange()) {
attributeList.add(new Key(new Object[] { r.getAttribute(keyAttrName) }));
}
return attributeList;
}
/**
* Get a List of attribute values for an iterator.
*
* @param iter iterator binding
* @param valueAttrName name of value attribute to use
* @return List of attribute values
*/
public static List attributeListForIterator(DCIteratorBinding iter,
String valueAttrName) {
List attributeList = new ArrayList();
for (Row r : iter.getAllRowsInRange()) {
attributeList.add(r.getAttribute(valueAttrName));
}
return attributeList;
}
/**
* Find an iterator binding in the current binding container by name.
*
* @param name iterator binding name
* @return iterator binding
*/
public static DCIteratorBinding findIterator(String name) {
DCIteratorBinding iter =
getDCBindingContainer().findIteratorBinding(name);
if (iter == null) {
// throw new IteratorNotFound("Iterator '" + name + "' not found");
}
return iter;
}
public static DCIteratorBinding findIterator(String bindingContainer,
String iterator) {
DCBindingContainer bindings =
(DCBindingContainer)JSFUtils.resolveExpression("#{" +
bindingContainer +
"}");
if (bindings == null) {
throw new RuntimeException("Binding container '" +
bindingContainer + "' not found");
}
DCIteratorBinding iter = bindings.findIteratorBinding(iterator);
if (iter == null) {
throw new RuntimeException("Iterator '" + iterator +
"' not found");
}
return iter;
}
public static JUCtrlValueBinding findCtrlBinding(String name) {
JUCtrlValueBinding rowBinding =
(JUCtrlValueBinding)getDCBindingContainer().findCtrlBinding(name);
if (rowBinding == null) {
throw new RuntimeException("CtrlBinding " + name + "' not found");
}
return rowBinding;
}
/**
* Find an operation binding in the current binding container by name.
*
* @param name operation binding name
* @return operation binding
*/
public static OperationBinding findOperation(String name) {
OperationBinding op =
getDCBindingContainer().getOperationBinding(name);
if (op == null) {
throw new RuntimeException("Operation '" + name + "' not found");
}
return op;
}
/**
* Find an operation binding in the current binding container by name.
*
* @param bindingContianer binding container name
* @param opName operation binding name
* @return operation binding
*/
public static OperationBinding findOperation(String bindingContianer,
String opName) {
DCBindingContainer bindings =
(DCBindingContainer)JSFUtils.resolveExpression("#{" +
bindingContianer +
"}");
if (bindings == null) {
throw new RuntimeException("Binding container '" +
bindingContianer + "' not found");
}
OperationBinding op = bindings.getOperationBinding(opName);
if (op == null) {
throw new RuntimeException("Operation '" + opName + "' not found");
}
return op;
}
/**
* Get List of ADF Faces SelectItem for an iterator binding with description.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iter ADF iterator binding
* @param valueAttrName name of value attribute to use for key
* @param displayAttrName name of the attribute from iterator rows to display
* @param descriptionAttrName name of the attribute for description
* @return ADF Faces SelectItem for an iterator binding with description
*/
public static List<SelectItem> selectItemsForIterator(DCIteratorBinding iter,
String valueAttrName,
String displayAttrName,
String descriptionAttrName) {
List<SelectItem> selectItems = new ArrayList<SelectItem>();
for (Row r : iter.getAllRowsInRange()) {
selectItems.add(new SelectItem(r.getAttribute(valueAttrName),
(String)r.getAttribute(displayAttrName),
(String)r.getAttribute(descriptionAttrName)));
}
return selectItems;
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iter ADF iterator binding
* @param valueAttrName name of value attribute to use for key
* @param displayAttrName name of the attribute from iterator rows to display
* @return ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsForIterator(DCIteratorBinding iter,
String valueAttrName,
String displayAttrName) {
List<SelectItem> selectItems = new ArrayList<SelectItem>();
for (Row r : iter.getAllRowsInRange()) {
selectItems.add(new SelectItem(r.getAttribute(valueAttrName),
(String)r.getAttribute(displayAttrName)));
}
return selectItems;
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the value of the 'valueAttrName' attribute as the key for
* the SelectItem key.
*
* @param iter ADF iterator binding
* @param valueAttrName name of value attribute to use for key
* @param displayAttrNames array of attribute names from iterator rows to display
* @return ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsForIterator(DCIteratorBinding iter,
String valueAttrName,
String[] displayAttrNames) {
List<SelectItem> selectItems = new ArrayList<SelectItem>();
for (Row r : iter.getAllRowsInRange()) {
StringBuilder buf = new StringBuilder();
for (int idx = 0; idx < displayAttrNames.length; idx++) {
buf.append((String)r.getAttribute(displayAttrNames[idx]));
if (idx < (displayAttrNames.length - 1)) {
buf.append("-");
}
}
selectItems.add(new SelectItem(r.getAttribute(valueAttrName),
buf.toString()));
}
return selectItems;
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the rowKey of each row as the SelectItem key.
*
* @param iteratorName ADF iterator binding name
* @param displayAttrName name of the attribute from iterator rows to display
* @return ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsByKeyForIterator(String iteratorName,
String displayAttrName) {
return selectItemsByKeyForIterator(findIterator(iteratorName),
displayAttrName);
}
/**
* Get List of ADF Faces SelectItem for an iterator binding with discription.
*
* Uses the rowKey of each row as the SelectItem key.
*
* @param iteratorName ADF iterator binding name
* @param displayAttrName name of the attribute from iterator rows to display
* @param descriptionAttrName name of the attribute for description
* @return ADF Faces SelectItem for an iterator binding with discription
*/
public static List<SelectItem> selectItemsByKeyForIterator(String iteratorName,
String displayAttrName,
String descriptionAttrName) {
return selectItemsByKeyForIterator(findIterator(iteratorName),
displayAttrName,
descriptionAttrName);
}
/**
* Get List of ADF Faces SelectItem for an iterator binding with discription.
*
* Uses the rowKey of each row as the SelectItem key.
*
* @param iter ADF iterator binding
* @param displayAttrName name of the attribute from iterator rows to display
* @param descriptionAttrName name of the attribute for description
* @return ADF Faces SelectItem for an iterator binding with discription
*/
public static List<SelectItem> selectItemsByKeyForIterator(DCIteratorBinding iter,
String displayAttrName,
String descriptionAttrName) {
List<SelectItem> selectItems = new ArrayList<SelectItem>();
for (Row r : iter.getAllRowsInRange()) {
selectItems.add(new SelectItem(r.getKey(),
(String)r.getAttribute(displayAttrName),
(String)r.getAttribute(descriptionAttrName)));
}
return selectItems;
}
/**
* Get List of ADF Faces SelectItem for an iterator binding.
*
* Uses the rowKey of each row as the SelectItem key.
*
* @param iter ADF iterator binding
* @param displayAttrName name of the attribute from iterator rows to display
* @return List of ADF Faces SelectItem for an iterator binding
*/
public static List<SelectItem> selectItemsByKeyForIterator(DCIteratorBinding iter,
String displayAttrName) {
List<SelectItem> selectItems = new ArrayList<SelectItem>();
for (Row r : iter.getAllRowsInRange()) {
selectItems.add(new SelectItem(r.getKey(),
(String)r.getAttribute(displayAttrName)));
}
return selectItems;
}
/**
* Find the BindingContainer for a page definition by name.
*
* Typically used to refer eagerly to page definition parameters. It is
* not best practice to reference or set bindings in binding containers
* that are not the one for the current page.
*
* @param pageDefName name of the page defintion XML file to use
* @return BindingContainer ref for the named definition
*/
private static BindingContainer findBindingContainer(String pageDefName) {
BindingContext bctx = getDCBindingContainer().getBindingContext();
BindingContainer foundContainer =
bctx.findBindingContainer(pageDefName);
return foundContainer;
}
public static void printOperationBindingExceptions(List opList) {
if (opList != null && !opList.isEmpty()) {
for (Object error : opList) {
LOGGER.severe(error.toString());
}
}
}
/**
* Get the page flow scope
* @return
*/
public static Map getPageFlowScope() {
return AdfFacesContext.getCurrentInstance().getPageFlowScope();
}
/**
* Open a new browser tab/window starting a new bounded task flow.
*
* @param taskFlowId - id of bounded task flow to show in new window
* @param taskFlowParams - params for the task flow (if any)
* @param windowName - name of browser tab/window (window.name)
* @param openInWindow - true will open a browser window (if settings of the browser
* allow this), false will open a new browser tab.
*/
public static void launchTaskFlowInNewWindow(TaskFlowId taskFlowId,
Map taskFlowParams,
String windowName,
boolean openInWindow) {
launchTaskFlowInNewWindow(taskFlowId, taskFlowParams, windowName,
openInWindow, 1000, 750);
}
/**
* Open a new browser tab/window starting a new bounded task flow.
*
* @param taskFlowId - id of bounded task flow to show in new window
* @param taskFlowParams - params for the task flow (if any)
* @param windowName - name of browser tab/window (window.name)
* @param openInWindow - true will open a browser window (if settings of the browser
* allow this), false will open a new browser tab.
* @param width
* @param height
*/
public static void launchTaskFlowInNewWindow(TaskFlowId taskFlowId,
Map taskFlowParams,
String windowName,
boolean openInWindow,
int width, int height) {
String url =
ControllerContext.getInstance().getTaskFlowURL(false, taskFlowId,
taskFlowParams);
if (url == null) {
throw new Error("Unable to launch window for task flow id " +
taskFlowId);
}
FacesContext context = FacesContext.getCurrentInstance();
ExtendedRenderKitService extendedRenderKitService =
Service.getService(context.getRenderKit(),
ExtendedRenderKitService.class);
// Build javascript to open a new browser tab/window
StringBuilder script = new StringBuilder();
// Unable to get a named firefox tab to gain focus. To workaround
// issue we close the tab first, then open it.
if (!openInWindow && windowName != null) {
script.append("var hWinx = window.open(\"");
script.append("about:blank"); // the URL
script.append("\",\"");
script.append(windowName);
script.append("\"");
script.append(");");
script.append("\n");
script.append("hWinx.close();\n");
}
// Set a variable with the window properties
script.append("var winProps = \"status=yes,toolbar=no,copyhistory=no,width=" +
width + ",height=" + height + "\";");
// If we aren't going to open in a new window, then clear the window properties
if (!openInWindow) {
script.append("winProps = '';");
}
// Set isOpenerValid to true if window.opener (a parent window) is defined and open
script.append("var isOpenerValid = (typeof(window.opener) != 'undefined' && window.opener != undefined && !window.opener.closed);");
// Set useProps to true if openInWindow is true or isOpenerValid is true
script.append("var useProps = (" + openInWindow +
" || isOpenerValid);");
// Set win to the current window, unless we need to use the parent, then set to window.opener (the parent window)
script.append("var win = window; if (typeof(isChildWindow) != 'undefined' && isChildWindow != undefined && isChildWindow == true && isOpenerValid) {win = window.opener;}");
// Set hWin to the window returned by calling open on win
script.append("var hWin = win.open(\"");
script.append(url); // the URL
script.append("\",\"");
script.append(windowName);
script.append("\"");
script.append(", winProps");
script.append(");");
// Set focus to the window opened.
script.append("hWin.focus();");
extendedRenderKitService.addScript(context, script.toString());
}
public static void executeClientSideScript(String script) {
FacesContext context = FacesContext.getCurrentInstance();
ExtendedRenderKitService extendedRenderKitService =
Service.getService(context.getRenderKit(),
ExtendedRenderKitService.class);
extendedRenderKitService.addScript(context, script);
}
/**
* Get the id of the RichShowDetailItem which is currently disclosed within the
* RichPanelTabbed or null if no children disclosed.
*
* @param panelTabbed
* @return
*/
public static String getDisclosedDetailItemId(RichPanelTabbed panelTabbed) {
RichShowDetailItem item = getDisclosedDetailItem(panelTabbed);
if (item != null) {
return item.getId();
}
return null;
}
/**
* Get the RichShowDetailItem which is currently disclosed within the
* RichPanelTabbed or null if no children disclosed.
*
* @param panelTabbed
* @return
*/
public static RichShowDetailItem getDisclosedDetailItem(RichPanelTabbed panelTabbed) {
if (panelTabbed != null) {
Iterator iter = panelTabbed.getChildren().iterator();
// Loop through all the child components
while (iter.hasNext()) {
UIComponent component = (UIComponent)iter.next();
// Make sure we only check components that are detailItems
if (component instanceof RichShowDetailItem) {
RichShowDetailItem detailItem =
(RichShowDetailItem)component;
if (detailItem.isDisclosed()) {
return detailItem;
}
}
}
}
return null;
}
/**
* Helper method to check if a UI component value
* is null or empty.
* @param component UIComponent
* @return true / false
*/
public static boolean isEmpty(UIComponent component) {
boolean isEmpty = false;
if (component == null) {
isEmpty = true;
} else {
// for a text field, check the value as a String
if (component instanceof RichInputText) {
RichInputText textField = (RichInputText)component;
if (textField.getValue() == null ||
((String)textField.getValue()).length() <= 0) {
isEmpty = true;
}
}
}
return isEmpty;
}
/**
* Get the list containging the selected rows for the given table <br/>
* Make sure the ADF table definition does not have the selection listener
* and the make current set.
* @param table
* @return
*/
public static List<Row> getSelectedRows(RichTable table) {
List<Row> rows = new ArrayList<Row>();
// get the selected row keys (iterator)
Iterator keyIter = table.getSelectedRowKeys().iterator();
// remember selected row keys
Object oldKey = table.getRowKey();
// loop for each selection
while (keyIter.hasNext()) {
}
// restore originally selected rows
table.setRowKey(oldKey);
return rows;
}
public static void printRow(Row row) {
System.out.println("\nSTART " + row.getKey() +
" *********************");
for (int i = 0; i < row.getAttributeCount(); i++) {
System.out.println("row[" + row.getAttributeNames()[i] + "]:[" +
row.getAttribute(i) + "]");
}
System.out.println("END " + row.getKey() +
"*********************\n");
}
/**
* Get a List of attributes as a Map (of name, value) for an iterator.
* @param iter iterator binding
* @param keyAttrName attribut name for the key of the map
* @param valueAttrName attribut name for the value
* @return Map of attribute values
*/
public static Map<Object, Object> attributesMapForIterator(DCIteratorBinding iter,
String keyAttrName,
String valueAttrName) {
Map<Object, Object> amap = new HashMap<Object, Object>();
for (Row r : iter.getAllRowsInRange()) {
amap.put(r.getAttribute(keyAttrName),
r.getAttribute(valueAttrName));
}
return amap;
}
/**
* Get a List of attributes as a Map (of name, value) for an iterator.
* @param iteratorName ADF iterator binding name
* @param keyAttrName attribut name for the key of the map
* @param valueAttrName attribut name for the value
* @return Map of attribute values
*/
public static Map<Object, Object> attributeMapForIterator(String iteratorName,
String keyAttrName,
String valueAttrName) {
return attributesMapForIterator(findIterator(iteratorName),
keyAttrName, valueAttrName);
}
public static Object invokeMethodExpression(String expr, Class returnType,
Class[] argTypes,
Object[] args) {
FacesContext fc = FacesContext.getCurrentInstance();
ELContext elctx = fc.getELContext();
ExpressionFactory elFactory =
fc.getApplication().getExpressionFactory();
MethodExpression methodExpr =
elFactory.createMethodExpression(elctx, expr, returnType,
argTypes);
return methodExpr.invoke(elctx, args);
}
public static Object invokeMethodExpression(String expr, Class returnType,
Class argType,
Object argument) {
return invokeMethodExpression(expr, returnType,
new Class[] { argType },
new Object[] { argument });
}
/**
* Programmatic evaluation of EL.
*
* @param el EL to evaluate
* @return Result of the evaluation
*/
public static Object evaluateEL(String el) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
ExpressionFactory expressionFactory =
facesContext.getApplication().getExpressionFactory();
ValueExpression exp =
expressionFactory.createValueExpression(elContext, el,
Object.class);
return exp.getValue(elContext);
}
/**
* Programmatic invocation of a method that an EL evaluates to.
* The method must not take any parameters.
*
* @param el EL of the method to invoke
* @return Object that the method returns
*/
public static Object invokeEL(String el) {
return invokeEL(el, new Class[0], new Object[0]);
}
/**
* Programmatic invocation of a method that an EL evaluates to.
*
* @param el EL of the method to invoke
* @param paramTypes Array of Class defining the types of the parameters
* @param params Array of Object defining the values of the parametrs
* @return Object that the method returns
*/
public static Object invokeEL(String el, Class[] paramTypes,
Object[] params) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
ExpressionFactory expressionFactory =
facesContext.getApplication().getExpressionFactory();
MethodExpression exp =
expressionFactory.createMethodExpression(elContext, el,
Object.class, paramTypes);
return exp.invoke(elContext, params);
}
}
Showing posts with label ADFUtils. Show all posts
Showing posts with label ADFUtils. Show all posts
Sunday 18 May 2014
ADFUtils
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