예제 #1
0
 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;
 }
예제 #3
0
  @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() + "]");
  }
예제 #5
0
  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());
    }
  }