private static void addValue(
Trace.DetailEntry.Builder builder, @Nullable Object possiblyOptionalValue) {
Object value = stripOptional(possiblyOptionalValue);
if (value == null) {
// add nothing (as a corollary, this will strip null/Optional.absent() items from lists)
} else if (value instanceof String) {
builder.addValueBuilder().setString((String) value).build();
} else if (value instanceof Boolean) {
builder.addValueBuilder().setBoolean((Boolean) value).build();
} else if (value instanceof Long) {
builder.addValueBuilder().setLong((Long) value).build();
} else if (value instanceof Number) {
builder.addValueBuilder().setDouble(((Number) value).doubleValue()).build();
} else {
logger.warn("detail map has unexpected value type: {}", value.getClass().getName());
builder.addValueBuilder().setString(Strings.nullToEmpty(value.toString())).build();
}
}
