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

Introduction

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

Prototype

public static JXPathContext newContext(Object contextBean)

Source Link

Document

Creates a new JXPathContext with the specified object as the root node.

Usage

From source file:org.apache.camel.language.jxpath.JXPathExpression.java

public <T> T evaluate(Exchange exchange, Class<T> tClass) {
    try {//from www . j a va  2 s . com
        JXPathContext context = JXPathContext.newContext(exchange);
        context.setLenient(lenient);
        Object result = getJXPathExpression().getValue(context, type);
        assertResultType(exchange, result);
        return exchange.getContext().getTypeConverter().convertTo(tClass, result);
    } catch (JXPathException e) {
        throw new ExpressionEvaluationException(this, exchange, e);
    }
}

From source file:org.apache.cocoon.components.expression.jxpath.JXPathExpression.java

private JXPathContext getContext(ExpressionContext context) {
    // This could be made more efficient by caching the
    // JXPathContext within the Context object.
    JXPathContext jxcontext = JXPathContext.newContext(context.getContextBean());
    jxcontext.setVariables(new VariableAdapter(context));
    jxcontext.setLenient(this.lenient);
    jxcontext.setNamespaceContextPointer(new NamespacesTablePointer(context.getNamespaces()));
    return jxcontext;
}

From source file:org.apache.cocoon.components.flow.java.test.FlowTest.java

public void testSimple() throws Exception {

    /*        ClassLoader cl = getClass().getClassLoader();
            while (cl != null) {/*from   www.  ja  va 2s .c  om*/
    System.out.println(cl);
    cl = cl.getParent();
            }
            try {
    System.out.println(
            getClass().
            getProtectionDomain().
            getCodeSource().
            getLocation());
            }
            catch (Exception e) {
            }*/

    Class clazz = loader.loadClass("org.apache.cocoon.components.flow.java.test.SimpleFlow");
    Continuable flow = (Continuable) clazz.newInstance();

    Method method = clazz.getMethod("run", new Class[0]);

    Continuation c = new Continuation(context);
    assertTrue(!c.isRestoring());
    assertTrue(!c.isCapturing());

    System.out.println("*** start flow");
    c.registerThread();
    method.invoke(flow, new Object[0]);
    if (c.isCapturing())
        c.getStack().popReference();
    c.deregisterThread();
    System.out.println("*** return from flow");

    assertTrue(!c.isRestoring());
    assertTrue(c.isCapturing());

    //System.out.println("request=" + request);
    request.addParameter("a", "2.3");
    redirector.reset();
    c = new Continuation(c, context);

    assertTrue(c.isRestoring());
    assertTrue(!c.isCapturing());

    System.out.println("*** resume flow");
    c.registerThread();
    method.invoke(flow, new Object[0]);
    if (c.isCapturing())
        c.getStack().popReference();
    c.deregisterThread();
    System.out.println("*** return from flow");

    assertTrue(!c.isRestoring());
    assertTrue(!c.isCapturing());

    VarMap map = (VarMap) FlowHelper.getContextObject(objectmodel);

    assertEquals(((Float) map.getMap().get("result")).floatValue(), 3.3f, 0.1f);

    JXPathContext jxcontext = JXPathContext.newContext(FlowHelper.getContextObject(objectmodel));
    Float result = (Float) jxcontext.getValue("result");

    assertEquals(result.floatValue(), 3.3f, 0.1f);
}

From source file:org.apache.cocoon.components.modules.input.JXPathHelper.java

public static Object getAttribute(String name, Configuration modeConf, JXPathHelperConfiguration setup,
        Object contextObj) throws ConfigurationException {

    if (contextObj == null) {
        return null;
    }//w  w w  .jav  a  2s.c  o m

    try {
        JXPathContext jxContext = JXPathContext.newContext(contextObj);
        setup(setup, jxContext, modeConf);

        Object obj = jxContext.getValue(name);
        return obj;
    } catch (Exception e) {
        throw new ConfigurationException("Module does not support <" + name + ">" + "attribute.", e);
    }
}

From source file:org.apache.cocoon.components.modules.input.JXPathHelper.java

public static Object[] getAttributeValues(String name, Configuration modeConf, JXPathHelperConfiguration setup,
        Object contextObj) throws ConfigurationException {

    if (contextObj == null) {
        return null;
    }/*from  w w w  .  ja  va  2 s .c o m*/

    try {
        JXPathContext jxContext = JXPathContext.newContext(contextObj);
        setup(setup, jxContext, modeConf);

        List values = null;
        Iterator i = jxContext.iterate(name);
        if (i.hasNext()) {
            values = new LinkedList();
        }
        while (i.hasNext()) {
            values.add(i.next());
        }
        Object[] obj = null;
        if (values != null) {
            obj = values.toArray();
            if (obj.length == 0) {
                obj = null;
            }
        }
        return obj;
    } catch (Exception e) {
        throw new ConfigurationException("Module does not support <" + name + ">" + "attribute.", e);
    }
}

From source file:org.apache.cocoon.components.source.impl.ModuleSource.java

/**
 * Return an <code>InputStream</code> object to read from the source.
 *
 * @throws IOException if I/O error occured.
 *//*from   w  w  w  .j a  v  a 2  s.  c o  m*/
public InputStream getInputStream() throws IOException, SourceException {
    if (this.logger.isDebugEnabled()) {
        this.logger.debug("Getting InputStream for " + getURI());
    }

    Object obj = getInputAttribute(this.attributeType, this.attributeName);
    if (obj == null)
        throw new SourceException(" The attribute: " + this.attributeName + " is empty");

    if (!(this.xPath.length() == 0 || this.xPath.equals("/"))) {
        JXPathContext context = JXPathContext.newContext(obj);
        obj = context.getValue(this.xPath);

        if (obj == null)
            throw new SourceException("the xpath: " + this.xPath + " applied on the attribute: "
                    + this.attributeName + " returns null");
    }

    if (obj instanceof InputStream) {
        return (InputStream) obj;
    } else if (obj instanceof String) {
        return new ByteArrayInputStream(((String) obj).getBytes());
    } else if (obj instanceof byte[]) {
        return new ByteArrayInputStream((byte[]) obj);
    } else {
        throw new SourceException(
                "The object type: " + obj.getClass() + " could not be serialized as a InputStream " + obj);
    }
}

From source file:org.apache.cocoon.components.source.impl.XModuleSource.java

/**
 * Implement this method to obtain SAX events.
 *
 */// w  w  w .j  av a 2  s  .co  m

public void toSAX(ContentHandler handler) throws SAXException {

    Object obj = getInputAttribute(this.attributeType, this.attributeName);
    if (obj == null)
        throw new SAXException(" The attribute: " + this.attributeName + " is empty");

    if (!(this.xPath.length() == 0 || this.xPath.equals("/"))) {
        JXPathContext context = JXPathContext.newContext(obj);

        obj = context.getPointer(this.xPath).getNode();

        if (obj == null)
            throw new SAXException("the xpath: " + this.xPath + " applied on the attribute: "
                    + this.attributeName + " returns null");
    }

    if (obj instanceof Document) {
        DOMStreamer domStreamer = new DOMStreamer(handler);
        domStreamer.stream((Document) obj);
    } else if (obj instanceof Node) {
        DOMStreamer domStreamer = new DOMStreamer(handler);
        handler.startDocument();
        domStreamer.stream((Node) obj);
        handler.endDocument();
    } else if (obj instanceof XMLizable) {
        ((XMLizable) obj).toSAX(handler);
    } else {
        throw new SAXException(
                "The object type: " + obj.getClass() + " could not be serialized to XML: " + obj);
    }
}

From source file:org.apache.cocoon.components.source.impl.XModuleSource.java

/**
 * Delete the source //from w  w  w. j a  v a2s  .c  o m
 */
public void delete() throws SourceException {
    if (!(this.xPath.length() == 0 || this.xPath.equals("/"))) {
        Object value;
        try {
            value = getInputAttribute(this.attributeType, this.attributeName);
        } catch (SAXException e) {
            throw new SourceException("delete: ", e);
        }
        if (value == null)
            throw new SourceException(" The attribute: " + this.attributeName + " is empty");

        JXPathContext context = JXPathContext.newContext(value);
        context.removeAll(this.xPath);
    } else {
        try {
            setOutputAttribute(this.attributeType, this.attributeName, null);
        } catch (SAXException e) {
            throw new SourceException("delete: ", e);
        }
    }
}

From source file:org.apache.cocoon.components.source.impl.XModuleSource.java

public void notify(Document insertDoc) throws SAXException {

    // handle xpaths, we are only handling inserts, i.e. if there is no
    // attribute of the given name and type the operation will fail
    if (!(this.xPath.length() == 0 || this.xPath.equals("/"))) {

        Object value = getInputAttribute(this.attributeType, this.attributeName);
        if (value == null)
            throw new SAXException(" The attribute: " + this.attributeName + " is empty");

        JXPathContext context = JXPathContext.newContext(value);

        if (value instanceof Document) {
            // If the attribute contains a dom document we
            // create the elements in the given xpath if
            // necesary, import the input document and put it
            // in the place described by the xpath.
            Document doc = (Document) value;

            Node importedNode = doc.importNode(insertDoc.getDocumentElement(), true);

            context.setLenient(true);// w w  w. j  a  v a2s  . co m
            context.setFactory(new DOMFactory());
            context.createPathAndSetValue(this.xPath, importedNode);
        } else {
            // Otherwise just try to put a the input document in
            // the place pointed to by the xpath
            context.setValue(this.xPath, insertDoc);
        }

    } else {
        setOutputAttribute(this.attributeType, this.attributeName, insertDoc);
    }
}

From source file:org.apache.cocoon.el.impl.jxpath.JXPathExpression.java

private JXPathContext getContext(ObjectModel objectModel) {
    // This could be made more efficient by caching the
    // JXPathContext within the Context object.

    JXPathContext jxobjectModel = JXPathContext.newContext(objectModel.get(ObjectModel.CONTEXTBEAN));
    jxobjectModel.setVariables(new VariableAdapter(objectModel));
    jxobjectModel.setLenient(this.lenient);
    jxobjectModel.setNamespaceContextPointer(
            new NamespacesTablePointer((NamespacesTable) objectModel.get(ObjectModel.NAMESPACE)));
    return jxobjectModel;
}