Examples with GateException gate.util.GateException used on opensource projects

Example 21 with GateException

use of gate.util.GateException in project gate-core by GateNLP.

the class ResourceData method determineSharableProperties.

private void determineSharableProperties(Class<?> cls, Collection<String> hiddenPropertyNames) throws GateException {
    BeanInfo bi;
    try {
        bi = Introspector.getBeanInfo(cls);
    } catch (IntrospectionException e) {
        throw new GateException("Failed to introspect " + cls, e);
    }
    // setter methods
    for (Method m : cls.getDeclaredMethods()) {
        Sharable sharableAnnot = m.getAnnotation(Sharable.class);
        if (sharableAnnot != null) {
            // determine the property name from the method name
            PropertyDescriptor propDescriptor = null;
            for (PropertyDescriptor pd : bi.getPropertyDescriptors()) {
                if (m.equals(pd.getWriteMethod())) {
                    propDescriptor = pd;
                    break;
                }
            }
            if (propDescriptor == null) {
                throw new GateException("@Sharable annotation found on " + m + ", but only Java Bean property setters may have " + "this annotation.");
            }
            if (propDescriptor.getReadMethod() == null) {
                throw new GateException("@Sharable annotation found on " + m + ", but no matching getter was found.");
            }
            String propName = propDescriptor.getName();
            if (sharableAnnot.value() == false) {
                // hide this property name from the search in superclasses
                hiddenPropertyNames.add(propName);
            } else {
                // this property is sharable if it has not been hidden in a subclass
                if (!hiddenPropertyNames.contains(propName)) {
                    sharableProperties.add(propName);
                }
            }
        }
    }
    // fields
    for (Field f : cls.getDeclaredFields()) {
        Sharable sharableAnnot = f.getAnnotation(Sharable.class);
        if (sharableAnnot != null) {
            String propName = f.getName();
            // check it's a valid Java Bean property
            PropertyDescriptor propDescriptor = null;
            for (PropertyDescriptor pd : bi.getPropertyDescriptors()) {
                if (propName.equals(pd.getName())) {
                    propDescriptor = pd;
                    break;
                }
            }
            if (propDescriptor == null || propDescriptor.getReadMethod() == null || propDescriptor.getWriteMethod() == null) {
                throw new GateException("@Sharable annotation found on " + f + " without matching Java Bean getter and setter.");
            }
            if (sharableAnnot.value() == false) {
                // hide this property name from the search in superclasses
                hiddenPropertyNames.add(propName);
            } else {
                // this property is sharable if it has not been hidden in a subclass
                if (!hiddenPropertyNames.contains(propName)) {
                    sharableProperties.add(propName);
                }
            }
        }
    }
    // go up the class tree
    if (cls.getSuperclass() != null) {
        determineSharableProperties(cls.getSuperclass(), hiddenPropertyNames);
    }
    for (Class<?> intf : cls.getInterfaces()) {
        determineSharableProperties(intf, hiddenPropertyNames);
    }
}

Example 22 with GateException

use of gate.util.GateException in project gate-core by GateNLP.

the class CreoleAnnotationHandler method processAnnotationsForResource.

/**
 * Process the given RESOURCE element, adding extra elements to it based on
 * the annotations on the resource class.
 *
 * @param element
 *          the RESOURCE element to process.
 */
private void processAnnotationsForResource(Element element) throws GateException {
    String className = element.getChildTextTrim("CLASS");
    if (className == null) {
        throw new GateException("\"CLASS\" element not found for resource in " + plugin);
    }
    Class<?> resourceClass = null;
    try {
        resourceClass = Gate.getClassLoader().loadClass(className);
    } catch (ClassNotFoundException e) {
        log.debug("Couldn't load class " + className + " for resource in " + plugin, e);
        throw new GateException("Couldn't load class " + className + " for resource in " + plugin);
    }
    processCreoleResourceAnnotations(element, resourceClass);
}

Example 23 with GateException

use of gate.util.GateException in project gate-core by GateNLP.

the class CreoleRegisterImpl method parseDirectory.

/**
 * Parse a directory file (represented as an open stream), adding resource
 * data objects to the CREOLE register as they occur. If the resource is from
 * a URL then that location is passed (otherwise null).
 */
protected void parseDirectory(Plugin plugin, Document jdomDoc, URL directoryUrl, URL creoleFileUrl) throws GateException {
    // this will create ResourceData entries in the register
    try {
        CreoleAnnotationHandler annotationHandler = new CreoleAnnotationHandler(plugin);
        GateClassLoader gcl = Gate.getClassLoader().getDisposableClassLoader(creoleFileUrl.toExternalForm());
        // Add any JARs from the creole.xml to the GATE ClassLoader
        annotationHandler.addJarsToClassLoader(gcl, jdomDoc);
        // Make sure there is a RESOURCE element for every resource type the
        // directory defines
        annotationHandler.createResourceElementsForDirInfo(jdomDoc);
        processFullCreoleXmlTree(plugin, jdomDoc, annotationHandler);
    } catch (IOException e) {
        throw (new GateException(e));
    } catch (JDOMException je) {
        if (DEBUG)
            je.printStackTrace(Err.getPrintWriter());
        throw (new GateException(je));
    }
}