@Override
public InterpreterResult interpret(String st, InterpreterContext context) {
InterpreterResult result;
if ("getId".equals(st)) {
// get unique id of this interpreter instance
result = new InterpreterResult(InterpreterResult.Code.SUCCESS, "" + this.hashCode());
} else if (st.startsWith("sleep")) {
try {
Thread.sleep(Integer.parseInt(st.split(" ")[1]));
} catch (InterruptedException e) {
// nothing to do
}
result = new InterpreterResult(InterpreterResult.Code.SUCCESS, "repl2: " + st);
} else {
result = new InterpreterResult(InterpreterResult.Code.SUCCESS, "repl2: " + st);
}
if (context.getResourcePool() != null) {
context
.getResourcePool()
.put(context.getNoteId(), context.getParagraphId(), "result", result);
}
return result;
}
@Override
public void run(ApplicationArgument arg, InterpreterContext context)
throws ApplicationException, IOException {
// get TableData
TableData tableData =
(TableData)
context.getResourcePool().get(arg.getResource().location(), arg.getResource().name());
if (tableData == null) {
context.out.write("No table data found");
return;
}
if (tableData.getColumnDef().length < 2) {
context.out.write("Minimum 2 columns are required. xaxis, yaxis");
return;
}
// dbar elementId
String elementId = "dbar" + context.getParagraphId();
// create element
context.out.write("<div id=\"" + elementId + "\" style=\"height:400px;\"><svg></svg></div>");
// include library
context.out.write("<script>\n");
// write data
int numRows = tableData.length();
String jsonData = "[ { key: \"data\", values: [";
for (int i = 0; i < numRows; i++) {
try {
jsonData +=
"{ label:\"" + tableData.getData(i, 0) + "\", value:" + tableData.getData(i, 1) + "}";
if (i != numRows) {
jsonData += ",";
}
} catch (Exception e) {
continue;
}
}
jsonData += "]}]";
context.out.write("nv.addGraph(function() {\n");
context.out.write("var elementId = \"" + elementId + "\";");
context.out.write("var data = " + jsonData + ";");
context.out.writeResource("dbar/draw.js");
context.out.write("});\n");
context.out.write("</script>");
}
@Test
public void testCreateDataFrame() {
if (getSparkVersionNumber() >= 13) {
repl.interpret("case class Person(name:String, age:Int)\n", context);
repl.interpret(
"val people = sc.parallelize(Seq(Person(\"moon\", 33), Person(\"jobs\", 51), Person(\"gates\", 51), Person(\"park\", 34)))\n",
context);
repl.interpret("people.toDF.count", context);
assertEquals(
new Long(4),
context
.getResourcePool()
.get(
context.getNoteId(),
context.getParagraphId(),
WellKnownResourceName.ZeppelinReplResult.toString())
.get());
}
}
@Override
public void cancel(InterpreterContext context) {
livyHelper.cancelHTTP(context.getParagraphId());
}