Examples with FacebookException facebook4j.FacebookException used on opensource projects

Example 1 with FacebookException

use of facebook4j.FacebookException in project camel by apache.

the class FacebookMethodsTypeHelper method invokeMethod.

/**
     * Invokes given method with argument values from given properties.
     *
     * @param facebook Facebook4J target object for invoke
     * @param method method to invoke
     * @param properties Map of arguments
     * @return result of method invocation
     * @throws RuntimeCamelException on errors
     */
public static Object invokeMethod(Facebook facebook, FacebookMethodsType method, Map<String, Object> properties) throws RuntimeCamelException {
    LOG.debug("Invoking {} with arguments {}", method.getName(), properties);
    final List<String> argNames = method.getArgNames();
    final Object[] values = new Object[argNames.size()];
    final List<Class<?>> argTypes = method.getArgTypes();
    final Class<?>[] types = argTypes.toArray(new Class[argTypes.size()]);
    int index = 0;
    for (String name : argNames) {
        Object value = properties.get(name);
        // is the parameter an array type?
        if (value != null && types[index].isArray()) {
            Class<?> type = types[index];
            if (value instanceof Collection) {
                // convert collection to array
                Collection<?> collection = (Collection<?>) value;
                Object array = Array.newInstance(type.getComponentType(), collection.size());
                if (array instanceof Object[]) {
                    collection.toArray((Object[]) array);
                } else {
                    int i = 0;
                    for (Object el : collection) {
                        Array.set(array, i++, el);
                    }
                }
                value = array;
            } else if (value.getClass().isArray() && type.getComponentType().isAssignableFrom(value.getClass().getComponentType())) {
                // convert derived array to super array
                final int size = Array.getLength(value);
                Object array = Array.newInstance(type.getComponentType(), size);
                for (int i = 0; i < size; i++) {
                    Array.set(array, i, Array.get(value, i));
                }
                value = array;
            } else {
                throw new IllegalArgumentException(String.format("Cannot convert %s to %s", value.getClass(), type));
            }
        }
        values[index++] = value;
    }
    try {
        return method.getMethod().invoke(facebook, values);
    } catch (Throwable e) {
        // skip wrapper exception to simplify stack
        String msg;
        if (e.getCause() != null && e.getCause() instanceof FacebookException) {
            e = e.getCause();
            msg = ((FacebookException) e).getErrorMessage();
        } else {
            msg = e.getMessage();
        }
        throw new RuntimeCamelException(String.format("Error invoking %s with %s: %s", method.getName(), properties, msg), e);
    }
}