public Object getValue(String name) {
IMain imain = flinkIloop.intp();
Object ret = imain.valueOfTerm(name);
if (ret instanceof None) {
return null;
} else if (ret instanceof Some) {
return ((Some) ret).get();
} else {
return ret;
}
}
public Object getLastObject() {
Object obj =
imain
.lastRequest()
.lineRep()
.call("$result", JavaConversions.asScalaBuffer(new LinkedList<Object>()));
return obj;
}
@Override
public void open() {
out = new ByteArrayOutputStream();
flinkConf = new org.apache.flink.configuration.Configuration();
Properties intpProperty = getProperty();
for (Object k : intpProperty.keySet()) {
String key = (String) k;
String val = toString(intpProperty.get(key));
flinkConf.setString(key, val);
}
if (localMode()) {
startFlinkMiniCluster();
}
flinkIloop = new FlinkILoop(getHost(), getPort(), (BufferedReader) null, new PrintWriter(out));
flinkIloop.settings_$eq(createSettings());
flinkIloop.createInterpreter();
imain = flinkIloop.intp();
// prepare bindings
imain.interpret("@transient var _binder = new java.util.HashMap[String, Object]()");
binder = (Map<String, Object>) getValue("_binder");
// import libraries
imain.interpret("import scala.tools.nsc.io._");
imain.interpret("import Properties.userHome");
imain.interpret("import scala.compat.Platform.EOL");
imain.interpret("import org.apache.flink.api.scala._");
imain.interpret("import org.apache.flink.api.common.functions._");
imain.bindValue("env", flinkIloop.scalaEnv());
}
@Override
public void open() {
out = new ByteArrayOutputStream();
flinkConf = new org.apache.flink.configuration.Configuration();
Properties intpProperty = getProperty();
for (Object k : intpProperty.keySet()) {
String key = (String) k;
String val = toString(intpProperty.get(key));
flinkConf.setString(key, val);
}
if (localMode()) {
startFlinkMiniCluster();
}
flinkIloop =
new FlinkILoop(
getHost(), getPort(), flinkConf, (BufferedReader) null, new PrintWriter(out));
flinkIloop.settings_$eq(createSettings());
flinkIloop.createInterpreter();
imain = flinkIloop.intp();
org.apache.flink.api.scala.ExecutionEnvironment benv = flinkIloop.scalaBenv();
// new ExecutionEnvironment(remoteBenv)
org.apache.flink.streaming.api.scala.StreamExecutionEnvironment senv = flinkIloop.scalaSenv();
senv.getConfig().disableSysoutLogging();
benv.getConfig().disableSysoutLogging();
// prepare bindings
imain.interpret("@transient var _binder = new java.util.HashMap[String, Object]()");
Map<String, Object> binder = (Map<String, Object>) getLastObject();
// import libraries
imain.interpret("import scala.tools.nsc.io._");
imain.interpret("import Properties.userHome");
imain.interpret("import scala.compat.Platform.EOL");
imain.interpret("import org.apache.flink.api.scala._");
imain.interpret("import org.apache.flink.api.common.functions._");
binder.put("benv", benv);
imain.interpret(
"val benv = _binder.get(\"benv\").asInstanceOf[" + benv.getClass().getName() + "]");
binder.put("senv", senv);
imain.interpret(
"val senv = _binder.get(\"senv\").asInstanceOf[" + senv.getClass().getName() + "]");
}
public InterpreterResult interpret(String[] lines, InterpreterContext context) {
IMain imain = flinkIloop.intp();
String[] linesToRun = new String[lines.length + 1];
for (int i = 0; i < lines.length; i++) {
linesToRun[i] = lines[i];
}
linesToRun[lines.length] = "print(\"\")";
Console.setOut(out);
out.reset();
Code r = null;
String incomplete = "";
for (String s : linesToRun) {
scala.tools.nsc.interpreter.Results.Result res = null;
try {
res = imain.interpret(incomplete + s);
} catch (Exception e) {
logger.info("Interpreter exception", e);
return new InterpreterResult(Code.ERROR, InterpreterUtils.getMostRelevantMessage(e));
}
r = getResultCode(res);
if (r == Code.ERROR) {
return new InterpreterResult(r, out.toString());
} else if (r == Code.INCOMPLETE) {
incomplete += s + "\n";
} else {
incomplete = "";
}
}
if (r == Code.INCOMPLETE) {
return new InterpreterResult(r, "Incomplete expression");
} else {
return new InterpreterResult(r, out.toString());
}
}