Example usage for org.apache.commons.jxpath JXPathContext getPointer

Introduction

In this page you can find the example usage for org.apache.commons.jxpath JXPathContext getPointer.

Prototype

public abstract Pointer getPointer(String xpath);

Source Link

Document

Traverses the xpath and returns a Pointer.

Usage

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

/**
 * Narrows the scope on the form-model to the member widget-field, and
 * narrows the scope on the object-model to the member xpath-context
 * before continuing the binding over the child-bindings.
 *///from  ww  w  .  jav  a2  s  . c  o m
public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException {
    Union unionWidget = (Union) selectWidget(frmModel, this.widgetId);
    JXPathContext subContext = jxpc.getRelativeContext(jxpc.getPointer(this.xpath));
    Binding[] subBindings = getChildBindings();
    if (subBindings != null) {
        int size = subBindings.length;
        for (int i = 0; i < size; i++) {
            subBindings[i].saveFormToModel(unionWidget, subContext);
        }
    }
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("done saving " + toString());
    }
}

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

/**
 * Actively performs the binding from the CForms-form to the ObjectModel
 * wrapped in a jxpath context//from  w  ww  .  j  a  v  a  2s .c o  m
 */
public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException {
    Widget widget = selectWidget(frmModel, this.fieldId);
    Object value = widget.getValue();
    if (value != null && convertor != null) {
        value = convertor.convertToString(value, convertorLocale, null);
    }

    Object oldValue = jxpc.getValue(this.xpath);
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("value= " + value + "-- oldvalue=" + oldValue);
    }

    boolean update = false;

    if ((value == null && oldValue != null) || value != null && !value.equals(oldValue)) {
        // first update the value itself
        if (value != null) {
            jxpc.createPathAndSetValue(this.xpath, value);
        } else {
            jxpc.removePath(this.xpath);
        }

        // now perform any other bindings that need to be performed when the value is updated
        JXPathContext subContext = null;
        try {
            subContext = jxpc.getRelativeContext(jxpc.getPointer(this.xpath));
        } catch (JXPathException e) {
            // if the value has been set to null and the underlying model is a bean, then
            // JXPath will not be able to create a relative context
            if (getLogger().isDebugEnabled()) {
                getLogger().debug("(Ignorable) problem binding field " + widget.getRequestParameterName(), e);
            }
        }
        if (subContext != null) {
            this.updateBinding.saveFormToModel(frmModel, subContext);
        }

        update = true;
    }

    if (getLogger().isDebugEnabled()) {
        getLogger().debug("done saving " + toString() + " -- value= " + value + " -- on-update == " + update);
    }
}

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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   ww w  .j  a  v a2 s  .  c om*/
    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 ww  w .  j av a 2  s  .  com
    Pointer pointer = ctx.getPointer(xpath);
    Assert.assertNull(message, pointer.getNode());
}

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From source file:org.apache.cocoon.woody.binding.AggregateJXPathBinding.java

/**
 * Narrows the scope on the form-model to the member widget-field, and
 * narrows the scope on the object-model to the member xpath-context
 * before continuing the binding over the child-bindings.
 *///from  w ww. java 2s .  co  m
public void doLoad(Widget frmModel, JXPathContext jxpc) throws BindingException {
    AggregateField aggregate = (AggregateField) frmModel.getWidget(this.widgetId);
    JXPathContext subContext = jxpc.getRelativeContext(jxpc.getPointer(this.xpath));
    super.doLoad(aggregate, subContext);
    aggregate.combineFields();
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("Done loading " + toString());
    }
}

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From source file:org.apache.cocoon.woody.binding.AggregateJXPathBinding.java

/**
 * Narrows the scope on the form-model to the member widget-field, and
 * narrows the scope on the object-model to the member xpath-context
 * before continuing the binding over the child-bindings.
 *//*from ww w.ja v  a 2s.com*/
public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException {
    AggregateField aggregate = (AggregateField) frmModel.getWidget(this.widgetId);
    JXPathContext subContext = jxpc.getRelativeContext(jxpc.getPointer(this.xpath));
    super.doSave(aggregate, subContext);
    if (getLogger().isDebugEnabled()) {
        getLogger().debug("Done saving " + toString());
    }
}

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

/**
 * Actively performs the binding from the Woody-form to the ObjectModel
 * wrapped in a jxpath context./* ww  w  . j a v a  2 s .c  o m*/
 */
public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException {
    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.woody.binding.JavaScriptJXPathBinding.java

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

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

        // FIXME: remove this ugly hack and get the request from the
        // Avalon context once binding builder are real components
        Map objectModel = CocoonComponentManager.getCurrentEnvironment().getObjectModel();

        try {//from  w w w.j  ava  2  s. c o m
            Map values = new HashMap(3);
            values.put("widget", widget);
            values.put("jxpathPointer", pointer);
            if (pointer.getNode() != null) {
                values.put("jxpathContext", jctx.getRelativeContext(pointer));
            }

            JavaScriptHelper.execScript(this.loadScript, values, 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.woody.binding.MultiValueJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    Widget widget = frmModel.getWidget(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 .ja  v  a  2s .co 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) {
                    value = convertor.convertFromString((String) value, convertorLocale, 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.woody.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./*  w  w w . j  a v  a 2 s .  c  o m*/
 */
public void doLoad(Widget frmModel, JXPathContext jxpc) throws BindingException {
    // Find the repeater
    Repeater repeater = (Repeater) frmModel.getWidget(this.repeaterId);
    repeater.removeRows();
    int initialSize = repeater.getSize();

    // build a jxpath iterator for pointers
    JXPathContext repeaterContext = jxpc.getRelativeContext(jxpc.getPointer(this.repeaterPath));
    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
        Iterator iter = this.uniqueRowBinding.iterator();
        while (iter.hasNext()) {
            ((UniqueFieldJXPathBinding) iter.next()).loadFormFromModel(thisRow, rowContext);
        }
        this.rowBinding.loadFormFromModel(thisRow, rowContext);
    }
    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading rows " + toString());
}

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