Example usage for org.apache.commons.jxpath Pointer getNode

Introduction

In this page you can find the example usage for org.apache.commons.jxpath Pointer getNode.

Prototype

Object getNode();

Source Link

Document

Returns the raw value of the object, property or collection element this pointer represents.

Usage

From source file:org.apache.cocoon.forms.binding.ContextJXPathBinding.java

/**
 * Actively performs the binding from the ObjectModel wrapped in a jxpath
 * context to the CocoonForm.//from   w w  w. j a  v a2 s.  c  o m
 */
public void doLoad(Widget frmModel, JXPathContext jxpc) throws BindingException {
    Pointer ptr = jxpc.getPointer(this.xpath);
    if (ptr.getNode() != null) {
        JXPathContext subContext = jxpc.getRelativeContext(ptr);
        super.doLoad(frmModel, subContext);
        if (getLogger().isDebugEnabled())
            getLogger().debug("done loading " + toString());
    } else {
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("non-existent path: skipping " + toString());
        }
    }
}

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From source file:org.apache.cocoon.forms.binding.ContextJXPathBinding.java

/**
 * Actively performs the binding from the CocoonForm to the ObjectModel
 * wrapped in a jxpath context./*from  www .j ava2  s.  c  o m*/
 */
public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException {
    if (this.factory != null) {
        jxpc.setFactory(this.factory);
    }
    Pointer ptr = jxpc.getPointer(this.xpath);
    if (ptr.getNode() == null) {
        jxpc.createPath(this.xpath);
        // Need to recreate the pointer after creating the path
        ptr = jxpc.getPointer(this.xpath);
    }
    JXPathContext subContext = jxpc.getRelativeContext(ptr);
    super.doSave(frmModel, subContext);
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("done saving " + toString());
    }
}

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From source file:org.apache.cocoon.forms.binding.JavaScriptJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) {
    if (this.loadScript != null) {
        Widget widget = selectWidget(frmModel, this.id);

        // Move to widget context
        Pointer pointer = jctx.getPointer(this.path);

        Map objectModel = ContextHelper.getObjectModel(this.avalonContext);

        try {/*from   w  ww .j a  v a  2s. c  om*/
            JXPathContext newCtx = pointer.getNode() == null ? null : jctx.getRelativeContext(pointer);

            JavaScriptHelper.callFunction(this.loadScript, widget,
                    new Object[] { widget, pointer, newCtx, this.childBindings }, objectModel);

        } catch (RuntimeException re) {
            // rethrow
            throw re;
        } catch (Exception e) {
            throw new CascadingRuntimeException("Error invoking JavaScript event handler", e);
        }
    } else {
        if (this.getLogger().isInfoEnabled()) {
            this.getLogger().info(
                    "[Javascript Binding] - loadForm: No javascript code avaliable. Widget id=" + this.getId());
        }
    }
}

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From source file:org.apache.cocoon.forms.binding.MultiValueJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    Widget widget = selectWidget(frmModel, this.multiValueId);
    if (widget == null) {
        throw new BindingException("The widget with the ID [" + this.multiValueId
                + "] referenced in the binding does not exist in the form definition.");
    }//from   www  .j a v a 2s. c  o  m

    // Move to multi value context
    Pointer ptr = jctx.getPointer(this.multiValuePath);
    if (ptr.getNode() != null) {
        // There are some nodes to load from

        JXPathContext multiValueContext = jctx.getRelativeContext(ptr);
        // build a jxpath iterator for pointers
        Iterator rowPointers = multiValueContext.iterate(this.rowPath);

        LinkedList list = new LinkedList();

        while (rowPointers.hasNext()) {
            Object value = rowPointers.next();

            if (value != null && convertor != null) {
                if (value instanceof String) {
                    ConversionResult conversionResult = convertor.convertFromString((String) value,
                            convertorLocale, null);
                    if (conversionResult.isSuccessful())
                        value = conversionResult.getResult();
                    else
                        value = null;
                } else {
                    getLogger().warn("Convertor ignored on backend-value which isn't of type String.");
                }
            }

            list.add(value);
        }

        widget.setValue(list.toArray());
    }

    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading values " + toString());
}

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From source file:org.apache.cocoon.forms.binding.RepeaterJXPathBinding.java

/**
 * Binds the unique-id of the repeated rows, and narrows the context on
 * objectModelContext and Repeater to the repeated rows before handing
 * over to the actual binding-children./*from   w ww.  jav  a  2s.co m*/
 */
public void doLoad(Widget frmModel, JXPathContext jxpc) throws BindingException {
    // Find the repeater
    Repeater repeater = (Repeater) selectWidget(frmModel, this.repeaterId);
    if (repeater == null) {
        throw new BindingException("The repeater with the ID [" + this.repeaterId
                + "] referenced in the binding does not exist in the form definition.");
    }
    repeater.clear();

    Pointer ptr = jxpc.getPointer(this.repeaterPath);
    if (ptr.getNode() != null) {
        // There are some nodes to load from

        int initialSize = repeater.getSize();

        // build a jxpath iterator for pointers
        JXPathContext repeaterContext = jxpc.getRelativeContext(ptr);
        Iterator rowPointers = repeaterContext.iteratePointers(this.rowPath);
        //iterate through it
        while (rowPointers.hasNext()) {
            // create a new row, take that as the frmModelSubContext
            Repeater.RepeaterRow thisRow;
            if (initialSize > 0) {
                thisRow = repeater.getRow(--initialSize);
            } else {
                thisRow = repeater.addRow();
            }
            // make a jxpath ObjectModelSubcontext on the iterated element
            Pointer jxp = (Pointer) rowPointers.next();
            JXPathContext rowContext = repeaterContext.getRelativeContext(jxp);
            // hand it over to children
            if (this.identityBinding != null) {
                this.identityBinding.loadFormFromModel(thisRow, rowContext);
            }
            this.rowBinding.loadFormFromModel(thisRow, rowContext);
        }
    }
    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading rows " + toString());
}

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From source file:org.apache.cocoon.forms.binding.SimpleRepeaterJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    // Find the repeater and clear it
    Repeater repeater = (Repeater) selectWidget(frmModel, this.repeaterId);

    if (this.clearOnLoad) {
        repeater.clear();//from www .  ja  v  a  2s.  co  m
    }

    // Move to repeater context
    Pointer ptr = jctx.getPointer(this.repeaterPath);
    if (ptr.getNode() != null) {
        // There are some nodes to load from

        JXPathContext repeaterContext = jctx.getRelativeContext(ptr);
        // build a jxpath iterator for pointers
        Iterator rowPointers = repeaterContext.iteratePointers(this.rowPath);

        //iterate through it
        int rowNum = 0;
        while (rowPointers.hasNext()) {
            // Get a row. It is created if needed (depends on clearOnLoad)
            Repeater.RepeaterRow thisRow;
            if (repeater.getSize() > rowNum) {
                thisRow = repeater.getRow(rowNum);
            } else {
                thisRow = repeater.addRow();
            }
            rowNum++;

            // make a jxpath sub context on the iterated element
            Pointer jxp = (Pointer) rowPointers.next();
            JXPathContext rowContext = repeaterContext.getRelativeContext(jxp);

            this.rowBinding.loadFormFromModel(thisRow, rowContext);
        }
    }
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("done loading rows " + toString());
    }
}

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From source file:org.apache.cocoon.forms.binding.TempRepeaterJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    // (There should be a general widget type checker for all the bindings to use,
    // coupled with a general informative exception class to throw if the widget is
    // of the wrong type or null.)
    Repeater repeater = (Repeater) selectWidget(frmModel, this.repeaterId);
    if (repeater == null) {
        String fullId = frmModel.getRequestParameterName();
        if (fullId == null || fullId.length() == 0) {
            fullId = "";
        } else {/*from w ww.ja v  a2s . co  m*/
            fullId = fullId + ".";
        }
        throw new RuntimeException("TempRepeaterJXPathBinding: Repeater \"" + fullId + this.repeaterId
                + "\" does not exist (" + frmModel.getLocation() + ")");
    }

    // Start by clearing the repeater, if necessary.
    if (this.clearOnLoad) {
        repeater.clear();
    }

    // Find the location of the repeater data.
    Pointer repeaterPointer = jctx.getPointer(this.repeaterPath);

    // Check if there is data present.
    //
    // (Otherwise, should we check the leniency config option
    // to decide whether to be silent or throw an exception?) 
    if (repeaterPointer != null) {

        // Narrow to repeater context.
        JXPathContext repeaterContext = jctx.getRelativeContext(repeaterPointer);

        // Build a jxpath iterator for the repeater row pointers.
        Iterator rowPointers = repeaterContext.iteratePointers(this.rowPath);

        // Iterate through the rows of data.
        int rowNum = 0;
        while (rowPointers.hasNext()) {

            // Get or create a row widget.
            Repeater.RepeaterRow thisRow;
            if (repeater.getSize() > rowNum) {
                thisRow = repeater.getRow(rowNum);
            } else {
                thisRow = repeater.addRow();
            }
            rowNum++;

            // Narrow to the row context.
            Pointer rowPointer = (Pointer) rowPointers.next();
            JXPathContext rowContext = repeaterContext.getRelativeContext(rowPointer);

            // If virtual rows are requested, place a deep clone of the row data
            // into a temporary node, and narrow the context to this virtual row.
            //
            // (A clone of the data is used to prevent modifying the source document.
            // Otherwise, the appendChild method would remove the data from the source
            // document.  Is this protection worth the penalty of a deep clone?)
            //
            // (This implementation of virtual rows currently only supports DOM
            // bindings, but could easily be extended to support other bindings.)

            if (virtualRows == true) {
                Node repeaterNode = (Node) repeaterPointer.getNode();
                Node virtualNode = repeaterNode.getOwnerDocument().createElementNS(null, "virtual");
                Node node = (Node) rowPointer.getNode();
                Node clone = node.cloneNode(true);
                Node fakeDocElement = node.getOwnerDocument().getDocumentElement().cloneNode(false);
                virtualNode.appendChild(clone);
                fakeDocElement.appendChild(virtualNode);
                rowContext = JXPathContext.newContext(repeaterContext, fakeDocElement);
                rowContext = rowContext.getRelativeContext(rowContext.getPointer("virtual"));
            }

            // Finally, perform the load row binding.
            this.rowBinding.loadFormFromModel(thisRow, rowContext);
        }
    }

    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading rows " + toString());
}

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From source file:org.apache.cocoon.forms.formmodel.WidgetTestHelper.java

public static void assertXPathExists(String message, String xpath, Document doc) {
    JXPathContext ctx = JXPathContext.newContext(doc);
    ctx.setLenient(true);/*from  w w w  .j  a  v  a  2s.co  m*/
    Pointer pointer = ctx.getPointer(xpath);
    Assert.assertNotNull(message, pointer.getNode());
}

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From source file:org.apache.cocoon.forms.formmodel.WidgetTestHelper.java

public static void assertXPathNotExists(String message, String xpath, Document doc) {
    JXPathContext ctx = JXPathContext.newContext(doc);
    ctx.setLenient(true);//from w ww .  j a  va  2  s .c  o m
    Pointer pointer = ctx.getPointer(xpath);
    Assert.assertNull(message, pointer.getNode());
}

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From source file:org.apache.cocoon.generation.JXTemplateGenerator.java

private Object getNode(JXTExpression expr, JexlContext jexlContext, JXPathContext jxpathContext,
        Boolean lenient) throws Exception {
    try {/*from   w w w.ja va  2  s.c o  m*/
        Object compiled = expr.compiledExpression;
        if (compiled instanceof CompiledExpression) {
            CompiledExpression e = (CompiledExpression) compiled;
            boolean oldLenient = jxpathContext.isLenient();
            if (lenient != null)
                jxpathContext.setLenient(lenient.booleanValue());
            try {
                Iterator iter = e.iteratePointers(jxpathContext);
                if (iter.hasNext()) {
                    Pointer first = (Pointer) iter.next();
                    if (iter.hasNext()) {
                        List result = new LinkedList();
                        result.add(first.getNode());
                        boolean dom = (first.getNode() instanceof Node);
                        while (iter.hasNext()) {
                            Object obj = ((Pointer) iter.next()).getNode();
                            dom = dom && (obj instanceof Node);
                            result.add(obj);
                        }
                        Object[] arr;
                        if (dom) {
                            arr = new Node[result.size()];
                        } else {
                            arr = new Object[result.size()];
                        }
                        result.toArray(arr);
                        return arr;
                    }
                    return first.getNode();
                }
                return null;
            } finally {
                jxpathContext.setLenient(oldLenient);
            }
        } else if (compiled instanceof Expression) {
            Expression e = (Expression) compiled;
            return e.evaluate(jexlContext);
        }
        return expr.raw;
    } catch (InvocationTargetException e) {
        Throwable t = e.getTargetException();
        if (t instanceof Exception) {
            throw (Exception) t;
        }
        throw (Error) t;
    }
}

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