JavaThisObject.java

package jetbrains.mps.debugger.java.api.state.watchables;

/*Generated by MPS */

import jetbrains.mps.debug.api.programState.IWatchable;
import com.sun.jdi.ObjectReference;
import jetbrains.mps.debugger.java.api.state.proxy.JavaStackFrame;
import jetbrains.mps.debugger.java.api.state.proxy.JavaValue;
import com.sun.jdi.ThreadReference;
import jetbrains.mps.debugger.java.api.state.customViewers.CustomViewersManager;
import jetbrains.mps.debug.api.programState.IValue;
import javax.swing.Icon;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SNodeReference;
import jetbrains.mps.debugger.java.api.state.proxy.JavaLocation;
import jetbrains.mps.textgen.trace.TraceInfoProvider;
import java.util.Iterator;
import jetbrains.mps.textgen.trace.DebugInfo;
import jetbrains.mps.debugger.java.api.state.JavaUiState;
import java.util.List;
import jetbrains.mps.debug.api.programState.WatchablesCategory;

public class JavaThisObject extends JavaWatchable implements IWatchable {
  private final ObjectReference myThisObject;
  private final JavaStackFrame myStackFrame;
  private final JavaValue myValue;
  public JavaThisObject(ObjectReference objectReference, JavaStackFrame stackFrame, ThreadReference threadReference) {
    super(threadReference);
    myThisObject = objectReference;
    myStackFrame = stackFrame;
    myValue = CustomViewersManager.getInstance().fromJdi(myThisObject, myThreadReference);
  }
  public ObjectReference getThisObject() {
    return myThisObject;
  }
  @Override
  public String getName() {
    return "this";
  }
  @Override
  public IValue getValue() {
    return myValue;
  }
  @Override
  public Icon getPresentationIcon() {
    return myValue.getPresentationIcon();
  }

  @Nullable
  @Override
  public SNodeReference getSourceNode() {
    final JavaLocation location = myStackFrame.getLocation();
    if (location == null) {
      return null;
    }
    TraceInfoProvider traceProvider = myStackFrame.getThread().getDebugSession().getTraceProvider();
    for (Iterator<DebugInfo> it = traceProvider.debugInfo(JavaUiState.modelNameFromLocation(location)).iterator(); it.hasNext();) {
      DebugInfo di = it.next();
      List<SNodeReference> unitNodes = di.getUnitNodesForPosition(location.getFileName(), location.getLineNumber());
      if (!(unitNodes.isEmpty())) {
        return unitNodes.get(0);
      }
    }
    return null;
  }

  @Override
  public WatchablesCategory getCategory() {
    return JavaWatchablesCategory.THIS_OBJECT;
  }

}