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 package com.sun.tools.ide.analysis.modernize.impl;

 import com.sun.tools.ide.analysis.modernize.impl.ModernizeAnalyzerImpl.ModernizeResponse;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import java.util.Optional;

 import java.util.stream.Collectors;

 import org.netbeans.modules.cnd.analysis.api.AnalyzerResponse;

 import org.netbeans.spi.editor.hints.ErrorDescription;

 import org.openide.filesystems.FileObject;

 /**

  *

  * @author Ilia Gromov

  */

 public class AnalyzerResponseMerger {

     private static class ErrorDesc {

         final ModernizeErrorInfo info;

         final FileObject fo;

         public ErrorDesc(ModernizeErrorInfo info, FileObject fo) {

             this.info = info;

             this.fo = fo;

         }

         public boolean isSame(ErrorDesc o2) {

             return isSame(this.info, o2.info) && this.fo.equals(o2.fo);

         }

         public boolean isSame(ModernizeErrorInfo o1, ModernizeErrorInfo o2) {

             return o1.getStartOffset() == o2.getStartOffset()

                     && o1.getEndOffset() == o2.getEndOffset()

                     && o1.getDiagnostics().getCheckName().equals(o2.getDiagnostics().getCheckName());

         }

     }

     private final List<ErrorDesc> errors = new ArrayList<>();

     private final ModernizeResponse delegate;

     public AnalyzerResponseMerger(ModernizeResponse delegate) {

         this.delegate = delegate;

     }

     public void addError(ModernizeErrorInfo info, FileObject fo) {

         ErrorDesc errorDesc = new ErrorDesc(info, fo);

         Optional<ErrorDesc> found = errors.stream()

                 .filter(o1 -> o1.isSame(errorDesc))

                 .findAny();

         if (found.isPresent()) {

             found.get().info.addMessageInfixes(errorDesc.info.getMessageInfixes());

         } else {

             errors.add(errorDesc);

         }

     }

     public List<ErrorDescription> done() {

         return errors.stream()

                 .map(error -> delegate.addErrorImpl(error.info, error.fo))

                 .collect(Collectors.toList());

     }

 }