Github user afs commented on a diff in the pull request:
https://github.com/apache/jena/pull/114#discussion_r175409690
--- Diff:
jena-arq/src/main/java/org/apache/jena/query/ResultSetFormatter.java ---
@@ -516,6 +520,41 @@ static public void outputAsJSON(boolean booleanResult)
static public void outputAsJSON(OutputStream outStream, boolean
booleanResult)
{ output(outStream, booleanResult, SPARQLResultSetJSON) ; }
+ /** Output an iterator of JSON values.
+ *
+ * @param outStream output stream
+ * @param jsonItems The JSON values
+ */
+ public static void outputAsJSON(OutputStream outStream,
Iterator<JsonObject> jsonItems)
+ {
+ JSWriter jWriter = new JSWriter(outStream) ;
+ jWriter.startArray() ;
+ jWriter.startOutput() ;
+ while (jsonItems.hasNext())
+ {
+ jWriter.startObject() ;
+ JsonObject jsonItem = jsonItems.next() ;
+ for (Entry<String, JsonValue> entry: jsonItem.entrySet())
+ {
+ JsonValue value = entry.getValue() ;
+ String val = "";
+ if (value.isString()) {
--- End diff --
"outputAsJSON" is a bit confusing because the other functions of the same
name produce SPARQL results in JSON. How about "output"?
In the code, numbers still come out as strings.
JSWriter seems to be only good for its current usage. The code below seems
to work: it manages the outer array itself and uses `JsonValue.output` to write
each item.
```
public static void outputAsJSON(OutputStream outStream,
Iterator<JsonObject> jsonItems)
{
IndentedWriter out = new IndentedWriter(outStream);
out.println("[");
out.incIndent();
while (jsonItems.hasNext()) {
JsonObject jsonItem = jsonItems.next() ;
jsonItem.output(out);
if ( jsonItems.hasNext() )
out.println(" ,");
else
out.println();
}
out.decIndent();
out.println("]");
out.flush();
}
```
---
