SystemMessagesReporter.java

package jetbrains.mps.debugger.java.runtime.engine;

/*Generated by MPS */

import com.intellij.execution.process.ProcessHandler;
import java.util.List;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.util.Key;
import java.util.ArrayList;
import com.intellij.execution.process.ProcessOutputTypes;
import org.jetbrains.annotations.NotNull;
import jetbrains.mps.debugger.java.runtime.engine.events.EventsProcessor;

public class SystemMessagesReporter {
  private String myName;
  private volatile ProcessHandler myProcessHandler;
  private final SystemMessagesReporter.MyDebugProcessAdapter myDebugProcessListener = new SystemMessagesReporter.MyDebugProcessAdapter();
  private final List<Pair<String, Key>> myPostponedMessages = new ArrayList<Pair<String, Key>>();
  public SystemMessagesReporter(DebugProcessMulticaster multicaster) {
    multicaster.addListener(myDebugProcessListener);
  }
  public void setProcessName(String processName) {
    myName = processName;
  }
  public void reportInformation(String message) {
    reportOrPostpone(message, ProcessOutputTypes.SYSTEM);
  }
  public void reportError(String message) {
    reportOrPostpone(message, ProcessOutputTypes.STDERR);
  }
  private synchronized void reportOrPostpone(String message, Key key) {
    if (myProcessHandler == null) {
      myPostponedMessages.add(new Pair<String, Key>(message, key));
    } else {
      reportInternal(message, key);
    }
  }
  public synchronized void setProcessHandler(ProcessHandler processHandler) {
    myProcessHandler = processHandler;
    for (Pair<String, Key> message : myPostponedMessages) {
      reportInternal(message.first, message.second);
    }
  }
  private void reportInternal(String message, Key key) {
    myProcessHandler.notifyTextAvailable(message + "\n", key);
  }
  private class MyDebugProcessAdapter extends DebugProcessAdapter {
    private MyDebugProcessAdapter() {
    }
    @Override
    public void processAttached(@NotNull EventsProcessor process) {
      reportInformation("Connected to the target VM, " + myName);
    }
    @Override
    public void processDetached(@NotNull EventsProcessor process, boolean closedByUser) {
      reportInformation("Disconnected from the target VM, " + myName);
    }
  }
}