/// <summary>
/// Ctor.
/// </summary>
/// <param name="eventType">type of event to render</param>
/// <param name="options">rendering options</param>
public XMLRendererImpl(
EventType eventType,
XMLRenderingOptions options)
{
EventPropertyRenderer propertyRenderer = null;
EventPropertyRendererContext propertyRendererContext = null;
if (options.Renderer != null) {
propertyRenderer = options.Renderer;
propertyRendererContext = new EventPropertyRendererContext(eventType, false);
}
rendererMetaOptions = new RendererMetaOptions(
options.PreventLooping,
true,
propertyRenderer,
propertyRendererContext);
meta = new RendererMeta(eventType, new Stack<EventTypePropertyPair>(), rendererMetaOptions);
this.options = options;
}
/// <summary>Ctor. </summary>
/// <param name="eventType">type of Event(s)</param>
/// <param name="options">rendering options</param>
public JSONRendererImpl(
EventType eventType,
JSONRenderingOptions options)
{
EventPropertyRenderer propertyRenderer = null;
EventPropertyRendererContext propertyRendererContext = null;
if (options.Renderer != null)
{
propertyRenderer = options.Renderer;
propertyRendererContext = new EventPropertyRendererContext(eventType, true);
}
_rendererOptions = new RendererMetaOptions(
options.PreventLooping,
false,
propertyRenderer,
propertyRendererContext);
_meta = new RendererMeta(eventType, new Stack <EventTypePropertyPair>(), _rendererOptions);
}
/// <summary>Returns a renderer for an output value. </summary>
/// <param name="type">to render</param>
/// <param name="options">options</param>
/// <returns>renderer</returns>
protected internal static OutputValueRenderer GetOutputValueRenderer(
Type type,
RendererMetaOptions options)
{
if (type.IsArray)
{
type = type.GetElementType();
}
if (type == typeof(string) || type == typeof(char?) || type == typeof(char) || type.IsEnum)
{
return(options.IsXmlOutput ? XmlStringOutput : JsonStringOutput);
}
if (type.IsEnum || type.IsNullable() && Nullable.GetUnderlyingType(type).IsEnum)
{
return(options.IsXmlOutput ? BaseOutput : JsonEnumOutput);
}
return(BaseOutput);
}
private static void RenderElementFragment(
EventBean eventBean,
StringBuilder buf,
int level,
NestedGetterPair nestedProp,
RendererMetaOptions rendererMetaOptions)
{
Ident(buf, level);
buf.Append('<');
buf.Append(nestedProp.Name);
buf.Append('>');
buf.Append(Newline);
RecursiveRender(eventBean, buf, level + 1, nestedProp.Metadata, rendererMetaOptions);
Ident(buf, level);
buf.Append("</");
buf.Append(nestedProp.Name);
buf.Append('>');
buf.Append(Newline);
}
private static void RecursiveRender(
EventBean theEvent,
StringBuilder buf,
int level,
RendererMeta meta,
RendererMetaOptions rendererOptions)
{
var delimiter = "";
var renderActions = new SortedList <string, Action>();
// simple properties
var simpleProps = meta.SimpleProperties;
if (rendererOptions.Renderer == null)
{
foreach (var simpleProp in simpleProps.OrderBy(prop => prop.Name))
{
var name = simpleProp.Name;
var value = simpleProp.Getter.Get(theEvent);
renderActions.Add(
name,
() => {
WriteDelimitedIndentedProp(buf, delimiter, level, name);
simpleProp.Output.Render(value, buf);
delimiter = COMMA_DELIMITER_NEWLINE;
});
}
}
else
{
var context = rendererOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
foreach (var simpleProp in simpleProps.OrderBy(prop => prop.Name))
{
var name = simpleProp.Name;
var value = simpleProp.Getter.Get(theEvent);
renderActions.Add(
name,
() => {
WriteDelimitedIndentedProp(buf, delimiter, level, simpleProp.Name);
context.DefaultRenderer = simpleProp.Output;
context.PropertyName = simpleProp.Name;
context.PropertyValue = value;
rendererOptions.Renderer.Render(context);
delimiter = COMMA_DELIMITER_NEWLINE;
});
}
}
var indexProps = meta.IndexProperties;
foreach (var indexProp in indexProps.OrderBy(prop => prop.Name))
{
var name = indexProp.Name;
renderActions.Add(
name,
() => {
WriteDelimitedIndentedProp(buf, delimiter, level, name);
var value = indexProp.Getter.Get(theEvent);
if (value == null)
{
buf.Append("null");
}
else if (value is string)
{
if (rendererOptions.Renderer == null)
{
indexProp.Output.Render(value, buf);
}
else
{
var context = rendererOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.DefaultRenderer = indexProp.Output;
context.PropertyName = name;
context.PropertyValue = value;
rendererOptions.Renderer.Render(context);
}
}
else
{
var asArray = value as Array;
if (asArray == null)
{
buf.Append("[]");
}
else
{
buf.Append('[');
var arrayDelimiter = "";
if (rendererOptions.Renderer == null)
{
for (var i = 0; i < asArray.Length; i++)
{
var arrayItem = asArray.GetValue(i);
buf.Append(arrayDelimiter);
indexProp.Output.Render(arrayItem, buf);
arrayDelimiter = ", ";
}
}
else
{
var context = rendererOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
for (var i = 0; i < asArray.Length; i++)
{
var arrayItem = asArray.GetValue(i);
buf.Append(arrayDelimiter);
context.PropertyName = indexProp.Name;
context.PropertyValue = arrayItem;
context.IndexedPropertyIndex = i;
context.DefaultRenderer = indexProp.Output;
rendererOptions.Renderer.Render(context);
arrayDelimiter = ", ";
}
}
buf.Append(']');
}
}
delimiter = COMMA_DELIMITER_NEWLINE;
});
}
var mappedProps = meta.MappedProperties;
foreach (var mappedProp in mappedProps.OrderBy(prop => prop.Name))
{
var name = mappedProp.Name;
var value = mappedProp.Getter.Get(theEvent);
if (value != null && !value.GetType().IsGenericStringDictionary())
{
Log.Warn(
"Property '" +
mappedProp.Name +
"' expected to return Map and returned " +
value.GetType() +
" instead");
continue;
}
renderActions.Add(
name,
() => {
WriteDelimitedIndentedProp(buf, delimiter, level, mappedProp.Name);
if (value == null)
{
buf.Append("null");
buf.Append(NEWLINE);
}
else
{
var map = MagicMarker.SingletonInstance.GetStringDictionary(value);
if (map.IsEmpty())
{
buf.Append("{}");
buf.Append(NEWLINE);
}
else
{
buf.Append('{');
buf.Append(NEWLINE);
var localDelimiter = "";
foreach (var entry in map)
{
if (entry.Key == null)
{
continue;
}
buf.Append(localDelimiter);
Ident(buf, level + 1);
buf.Append('\"');
buf.Append(entry.Key);
buf.Append("\": ");
if (entry.Value == null)
{
buf.Append("null");
}
else
{
var outRenderer = OutputValueRendererFactory.GetOutputValueRenderer(
entry.Value.GetType(),
rendererOptions);
if (rendererOptions.Renderer == null)
{
outRenderer.Render(entry.Value, buf);
}
else
{
var context = rendererOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = mappedProp.Name;
context.PropertyValue = entry.Value;
context.MappedPropertyKey = entry.Key;
context.DefaultRenderer = outRenderer;
rendererOptions.Renderer.Render(context);
}
}
localDelimiter = COMMA_DELIMITER_NEWLINE;
}
buf.Append(NEWLINE);
Ident(buf, level);
buf.Append('}');
}
}
delimiter = COMMA_DELIMITER_NEWLINE;
});
}
var nestedProps = meta.NestedProperties;
foreach (var nestedProp in nestedProps.OrderBy(prop => prop.Name))
{
var name = nestedProp.Name;
var value = nestedProp.Getter.GetFragment(theEvent);
renderActions.Add(
name,
() => {
WriteDelimitedIndentedProp(buf, delimiter, level, nestedProp.Name);
if (value == null)
{
buf.Append("null");
}
else if (!nestedProp.IsArray)
{
if (!(value is EventBean))
{
Log.Warn(
"Property '" +
nestedProp.Name +
"' expected to return EventBean and returned " +
value.GetType() +
" instead");
buf.Append("null");
return;
}
var nestedEventBean = (EventBean)value;
buf.Append('{');
buf.Append(NEWLINE);
RecursiveRender(nestedEventBean, buf, level + 1, nestedProp.Metadata, rendererOptions);
Ident(buf, level);
buf.Append('}');
}
else
{
if (!(value is EventBean[]))
{
Log.Warn(
"Property '" +
nestedProp.Name +
"' expected to return EventBean[] and returned " +
value.GetType() +
" instead");
buf.Append("null");
return;
}
var arrayDelimiterBuf = new StringBuilder();
arrayDelimiterBuf.Append(',');
arrayDelimiterBuf.Append(NEWLINE);
Ident(arrayDelimiterBuf, level + 1);
var nestedEventArray = (EventBean[])value;
var arrayDelimiter = "";
buf.Append('[');
for (var i = 0; i < nestedEventArray.Length; i++)
{
var arrayItem = nestedEventArray[i];
buf.Append(arrayDelimiter);
arrayDelimiter = arrayDelimiterBuf.ToString();
buf.Append('{');
buf.Append(NEWLINE);
RecursiveRender(arrayItem, buf, level + 2, nestedProp.Metadata, rendererOptions);
Ident(buf, level + 1);
buf.Append('}');
}
buf.Append(']');
}
delimiter = COMMA_DELIMITER_NEWLINE;
});
}
foreach (var entry in renderActions)
{
entry.Value.Invoke();
}
buf.Append(NEWLINE);
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="eventType">to render</param>
/// <param name="stack">the stack of properties to avoid looping</param>
/// <param name="options">rendering options</param>
public RendererMeta(
EventType eventType,
Stack<EventTypePropertyPair> stack,
RendererMetaOptions options)
{
var gettersSimple = new List<GetterPair>();
var gettersIndexed = new List<GetterPair>();
var gettersMapped = new List<GetterPair>();
var gettersNested = new List<NestedGetterPair>();
var descriptors = eventType.PropertyDescriptors;
foreach (var desc in descriptors.OrderBy(d => d.PropertyName)) {
var propertyName = desc.PropertyName;
if (!desc.IsIndexed && !desc.IsMapped && !desc.IsFragment) {
var getter = eventType.GetGetter(propertyName);
if (getter == null) {
Log.Warn(
"No getter returned for event type '" +
eventType.Name +
"' and property '" +
propertyName +
"'");
continue;
}
gettersSimple.Add(
new GetterPair(
getter,
propertyName,
OutputValueRendererFactory.GetOutputValueRenderer(desc.PropertyType, options)));
}
if (desc.IsIndexed && !desc.IsRequiresIndex && !desc.IsFragment) {
var getter = eventType.GetGetter(propertyName);
if (getter == null) {
Log.Warn(
"No getter returned for event type '" +
eventType.Name +
"' and property '" +
propertyName +
"'");
continue;
}
if (desc.PropertyType != typeof(string)) {
gettersIndexed.Add(
new GetterPair(
getter,
propertyName,
OutputValueRendererFactory.GetOutputValueRenderer(desc.PropertyType, options)));
}
else {
gettersSimple.Add(
new GetterPair(
getter,
propertyName,
OutputValueRendererFactory.GetOutputValueRenderer(desc.PropertyType, options)));
}
}
if (desc.IsMapped && !desc.IsRequiresMapKey && !desc.IsFragment) {
var getter = eventType.GetGetter(propertyName);
if (getter == null) {
Log.Warn(
"No getter returned for event type '" +
eventType.Name +
"' and property '" +
propertyName +
"'");
continue;
}
gettersMapped.Add(
new GetterPair(
getter,
propertyName,
OutputValueRendererFactory.GetOutputValueRenderer(desc.PropertyType, options)));
}
if (desc.IsFragment) {
var getter = eventType.GetGetter(propertyName);
var fragmentType = eventType.GetFragmentType(propertyName);
if (getter == null) {
Log.Warn(
"No getter returned for event type '" +
eventType.Name +
"' and property '" +
propertyName +
"'");
continue;
}
if (fragmentType == null) {
Log.Warn(
"No fragment type returned for event type '" +
eventType.Name +
"' and property '" +
propertyName +
"'");
continue;
}
var pair = new EventTypePropertyPair(fragmentType.FragmentType, propertyName);
if (options.PreventLooping && stack.Contains(pair)) {
continue; // prevent looping behavior on self-references
}
stack.Push(pair);
var fragmentMetaData = new RendererMeta(fragmentType.FragmentType, stack, options);
stack.Pop();
gettersNested.Add(
new NestedGetterPair(getter, propertyName, fragmentMetaData, fragmentType.IsIndexed));
}
}
SimpleProperties = gettersSimple.ToArray();
IndexProperties = gettersIndexed.ToArray();
MappedProperties = gettersMapped.ToArray();
NestedProperties = gettersNested.ToArray();
}
private static void RecursiveRender(
EventBean theEvent,
StringBuilder buf,
int level,
RendererMeta meta,
RendererMetaOptions rendererMetaOptions)
{
foreach (var simpleProp in meta.SimpleProperties.OrderBy(p => p.Name)) {
var value = simpleProp.Getter.Get(theEvent);
if (value == null) {
continue;
}
Ident(buf, level);
buf.Append('<');
buf.Append(simpleProp.Name);
buf.Append('>');
if (rendererMetaOptions.Renderer == null) {
simpleProp.Output.Render(value, buf);
}
else {
var context = rendererMetaOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = simpleProp.Name;
context.PropertyValue = value;
context.DefaultRenderer = simpleProp.Output;
rendererMetaOptions.Renderer.Render(context);
}
buf.Append("</");
buf.Append(simpleProp.Name);
buf.Append('>');
buf.Append(Newline);
}
foreach (var indexProp in meta.IndexProperties.OrderBy(p => p.Name)) {
var value = indexProp.Getter.Get(theEvent);
if (value == null) {
continue;
}
// Strings are rendered like simple properties
if (value is string) {
Ident(buf, level);
buf.Append('<');
buf.Append(indexProp.Name);
buf.Append('>');
if (rendererMetaOptions.Renderer == null) {
indexProp.Output.Render(value, buf);
}
else {
var context = rendererMetaOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = indexProp.Name;
context.PropertyValue = value;
context.DefaultRenderer = indexProp.Output;
rendererMetaOptions.Renderer.Render(context);
}
buf.Append("</");
buf.Append(indexProp.Name);
buf.Append('>');
buf.Append(Newline);
}
// Arrays
else if (value is Array array) {
for (var i = 0; i < array.Length; i++) {
var arrayItem = array.GetValue(i);
if (arrayItem == null) {
continue;
}
Ident(buf, level);
buf.Append('<');
buf.Append(indexProp.Name);
buf.Append('>');
if (rendererMetaOptions.Renderer == null) {
indexProp.Output.Render(arrayItem, buf);
}
else {
var context = rendererMetaOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = indexProp.Name;
context.PropertyValue = arrayItem;
context.IndexedPropertyIndex = i;
context.DefaultRenderer = indexProp.Output;
rendererMetaOptions.Renderer.Render(context);
}
buf.Append("</");
buf.Append(indexProp.Name);
buf.Append('>');
buf.Append(Newline);
}
}
// Lists
else if (value.GetType().IsGenericList()) {
// All lists are generically enumerable
int listItemIndex = 0;
foreach (var listItem in value.UnwrapEnumerable<object>()) {
if (listItem != null) {
Ident(buf, level);
buf.Append('<');
buf.Append(indexProp.Name);
buf.Append('>');
if (rendererMetaOptions.Renderer == null)
{
indexProp.Output.Render(listItem, buf);
}
else
{
var context = rendererMetaOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = indexProp.Name;
context.PropertyValue = listItem;
context.IndexedPropertyIndex = listItemIndex;
context.DefaultRenderer = indexProp.Output;
rendererMetaOptions.Renderer.Render(context);
}
buf.Append("</");
buf.Append(indexProp.Name);
buf.Append('>');
buf.Append(Newline);
}
listItemIndex++;
}
}
else {
Log.Warn("Property '" + indexProp.Name + "' returned a non-array object");
}
}
foreach (var mappedProp in meta.MappedProperties.OrderBy(p => p.Name)) {
var value = mappedProp.Getter.Get(theEvent);
if (value != null && !(value is IDictionary<string, object>)) {
Log.Warn(
"Property '" +
mappedProp.Name +
"' expected to return Map and returned " +
value.GetType() +
" instead");
continue;
}
Ident(buf, level);
buf.Append('<');
buf.Append(mappedProp.Name);
buf.Append('>');
buf.Append(Newline);
if (value != null) {
var map = (IDictionary<string, object>) value;
if (!map.IsEmpty()) {
var localDelimiter = "";
foreach (var entry in map)
{
if (entry.Key == null) {
continue;
}
buf.Append(localDelimiter);
Ident(buf, level + 1);
buf.Append('<');
buf.Append(entry.Key);
buf.Append('>');
if (entry.Value != null) {
var outputValueRenderer =
OutputValueRendererFactory.GetOutputValueRenderer(
entry.Value.GetType(),
rendererMetaOptions);
if (rendererMetaOptions.Renderer == null) {
outputValueRenderer.Render(entry.Value, buf);
}
else {
var context = rendererMetaOptions.RendererContext;
context.SetStringBuilderAndReset(buf);
context.PropertyName = mappedProp.Name;
context.PropertyValue = entry.Value;
context.MappedPropertyKey = entry.Key;
context.DefaultRenderer = outputValueRenderer;
rendererMetaOptions.Renderer.Render(context);
}
}
buf.Append("</");
buf.Append(entry.Key);
buf.Append('>');
localDelimiter = Newline;
}
}
}
buf.Append(Newline);
Ident(buf, level);
buf.Append("</");
buf.Append(mappedProp.Name);
buf.Append('>');
buf.Append(Newline);
}
var nestedProps = meta.NestedProperties;
foreach (var nestedProp in nestedProps.OrderBy(p => p.Name)) {
var value = nestedProp.Getter.GetFragment(theEvent);
if (value == null) {
continue;
}
if (!nestedProp.IsArray) {
if (!(value is EventBean)) {
Log.Warn(
"Property '" +
nestedProp.Name +
"' expected to return EventBean and returned " +
value.GetType() +
" instead");
buf.Append("null");
continue;
}
RenderElementFragment((EventBean) value, buf, level, nestedProp, rendererMetaOptions);
}
else {
if (!(value is EventBean[])) {
Log.Warn(
"Property '" +
nestedProp.Name +
"' expected to return EventBean[] and returned " +
value.GetType() +
" instead");
buf.Append("null");
continue;
}
var nestedEventArray = (EventBean[]) value;
for (var i = 0; i < nestedEventArray.Length; i++) {
var arrayItem = nestedEventArray[i];
if (arrayItem == null) {
continue;
}
RenderElementFragment(arrayItem, buf, level, nestedProp, rendererMetaOptions);
}
}
}
}
