Example usage for org.apache.commons.jxpath JXPathException JXPathException

Introduction

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

Prototype

public JXPathException(String msg, Throwable e) 

Source Link

Document

Create a new JXPathException with the given Exception base cause and detail message.

Usage

From source file:org.eclipse.e4.emf.internal.xpath.helper.ValueUtils.java

@SuppressWarnings("unchecked")
public static Object getValue(EObject bean, EStructuralFeature pd, int index) {
    if (pd.isMany()) {
        try {//from  ww  w .  j  a v a  2  s  .  co  m
            return ((List<Object>) bean.eGet(pd)).get(index);
        } catch (IndexOutOfBoundsException ex) {
            return null;
        } catch (Throwable ex) {
            throw new JXPathException("Cannot access property: " + pd.getName(), ex);
        }
    }

    // We will fall through if there is no indexed read

    return getValue(getValue(bean, pd), index);
}

---

From source file:org.eclipse.e4.emf.internal.xpath.helper.ValueUtils.java

@SuppressWarnings("unchecked")
public static void setValue(EObject bean, EStructuralFeature pd, Object value) {
    try {/*from   ww  w . j  av  a 2s.c o m*/
        if (pd.isMany()) {
            List<Object> l = (List<Object>) bean.eGet(pd);
            l.clear();
            l.addAll((Collection<Object>) value);
        } else {
            bean.eSet(pd, value);
        }
    } catch (Exception ex) {
        throw new JXPathException("Cannot modify property: "
                + (bean == null ? "null" : bean.getClass().getName()) + "." + pd.getName(), ex);
    }
}

---

From source file:org.eclipse.e4.emf.internal.xpath.helper.ValueUtils.java

private static Object convert(Object value, Class<?> type) {
    try {/*from   www .j a  v a 2 s .co m*/
        return TypeUtils.convert(value, type);
    } catch (Exception ex) {
        throw new JXPathException("Cannot convert value of class "
                + (value == null ? "null" : value.getClass().getName()) + " to type " + type, ex);
    }
}

---

From source file:org.xchain.framework.jxpath.GenericsWisePackageFunctions.java

public Function getFunction(String namespace, String name, Object[] parameters) {
    if ((namespace == null && this.namespace != null) //NOPMD
            || (namespace != null && !namespace.equals(this.namespace))) {
        return null;
    }//from   w w w.j a  v a 2 s.c  o m

    if (parameters == null) {
        parameters = EMPTY_ARRAY;
    }

    if (parameters.length >= 1) {
        Object target = TypeUtils.convert(parameters[0], Object.class);
        if (target != null) {
            Method method = MethodLookupUtils.lookupMethod(target.getClass(), name, parameters);
            if (method != null) {
                return new MethodFunction(method);
            }

            if (target instanceof NodeSet) {
                target = ((NodeSet) target).getPointers();
            }

            method = MethodLookupUtils.lookupMethod(target.getClass(), name, parameters);
            if (method != null) {
                return new MethodFunction(method);
            }

            if (target instanceof Collection) {
                Iterator iter = ((Collection) target).iterator();
                if (iter.hasNext()) {
                    target = iter.next();
                    if (target instanceof Pointer) {
                        target = ((Pointer) target).getValue();
                    }
                } else {
                    target = null;
                }
            }
        }
        if (target != null) {
            Method method = MethodLookupUtils.lookupMethod(target.getClass(), name, parameters);
            if (method != null) {
                return new MethodFunction(method);
            }
        }
    }

    String fullName = classPrefix + name;
    int inx = fullName.lastIndexOf('.');
    if (inx == -1) {
        return null;
    }

    String className = fullName.substring(0, inx);
    String methodName = fullName.substring(inx + 1);

    Class functionClass;
    try {
        functionClass = Class.forName(className, true, Thread.currentThread().getContextClassLoader());
    } catch (ClassNotFoundException ex) {
        throw new JXPathException(
                "Cannot invoke extension function " + (namespace != null ? namespace + ":" + name : name), ex);
    }

    if (methodName.equals("new")) {
        Constructor constructor = MethodLookupUtils.lookupConstructor(functionClass, parameters);
        if (constructor != null) {
            return new ConstructorFunction(constructor);
        }
    } else {
        Method method = MethodLookupUtils.lookupStaticMethod(functionClass, methodName, parameters);
        if (method != null) {
            return new MethodFunction(method);
        }
    }
    return null;
}

---