protected final void renderHeader(XContentBuilder builder, Params params) throws IOException {
boolean hasHeader = false;
for (String key : headers.keySet()) {
if (key.startsWith("es.")) {
continue;
}
if (hasHeader == false) {
builder.startObject("header");
hasHeader = true;
}
List<String> values = headers.get(key);
xContentHeader(builder, key, values);
}
if (hasHeader) {
builder.endObject();
}
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
Throwable ex = ExceptionsHelper.unwrapCause(this);
if (ex != this) {
toXContent(builder, params, this);
} else {
builder.field("type", getExceptionName());
builder.field("reason", getMessage());
for (String key : headers.keySet()) {
if (key.startsWith("es.")) {
List<String> values = headers.get(key);
xContentHeader(builder, key.substring("es.".length()), values);
}
}
innerToXContent(builder, params);
renderHeader(builder, params);
if (params.paramAsBoolean(
REST_EXCEPTION_SKIP_STACK_TRACE, REST_EXCEPTION_SKIP_STACK_TRACE_DEFAULT)
== false) {
builder.field("stack_trace", ExceptionsHelper.stackTrace(this));
}
}
return builder;
}