JavaNodePositionProvider.java

package jetbrains.mps.debugger.java.runtime;

/*Generated by MPS */

import jetbrains.mps.debug.api.source.NodePositionProvider;
import com.intellij.openapi.components.ProjectComponent;
import jetbrains.mps.debug.api.source.PositionProvider;
import jetbrains.mps.project.MPSProject;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SNodeReference;
import org.jetbrains.annotations.NotNull;
import jetbrains.mps.debug.api.programState.ILocation;
import jetbrains.mps.debug.api.AbstractDebugSession;
import java.util.Iterator;
import jetbrains.mps.textgen.trace.DebugInfo;
import jetbrains.mps.util.NameUtil;
import jetbrains.mps.textgen.trace.BaseLanguageNodeLookup;
import jetbrains.mps.debug.api.source.NodeSourcePosition;
import org.jetbrains.annotations.NonNls;
import jetbrains.mps.debugger.java.runtime.state.DebugSession;

public class JavaNodePositionProvider extends NodePositionProvider implements ProjectComponent {
  private final PositionProvider myProvider;
  public JavaNodePositionProvider(PositionProvider provider, MPSProject mpsProject) {
    super(mpsProject);
    myProvider = provider;
  }

  @Nullable
  @Override
  protected SNodeReference getSNodePointer(@NotNull ILocation location, @NotNull AbstractDebugSession session) {
    for (Iterator<DebugInfo> it = session.getTraceProvider().debugInfo(NameUtil.namespaceFromLongName(location.getUnitName())).iterator(); it.hasNext();) {
      SNodeReference n = new BaseLanguageNodeLookup(it.next()).getNodeAt(location.getFileName(), location.getLineNumber());
      if (n != null) {
        return n;
      }
    }
    return null;
  }

  @Override
  public void projectOpened() {
  }
  @Override
  public void projectClosed() {
  }
  @Override
  public void initComponent() {
    myProvider.addProvider(this, NodeSourcePosition.class.getName());
  }
  @Override
  public void disposeComponent() {
    myProvider.removeProvider(this);
  }
  @NonNls
  @NotNull
  @Override
  public String getComponentName() {
    return "Java Node Position Provider";
  }
  @Override
  public boolean accepts(AbstractDebugSession session) {
    return super.accepts(session) && session instanceof DebugSession;
  }
}