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/* XLogo4Schools - A Logo Interpreter specialized for use in schools, based on XLogo by Lo�c Le Coq
* Copyright (C) 2013 Marko Zivkovic
*
* Contact Information: marko88zivkovic at gmail dot com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. This program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details. You should have received a copy of the
* GNU General Public License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*
* This Java source code belongs to XLogo4Schools, written by Marko Zivkovic
* during his Bachelor thesis at the computer science department of ETH Z�rich,
* in the year 2013 and/or during future work.
*
* It is a reengineered version of XLogo written by Lo�c Le Coq, published
* under the GPL License at http://xlogo.tuxfamily.org/
*
* Contents of this file were entirely written by Marko Zivkovic
*/
package xlogo.kernel.userspace;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import xlogo.interfaces.ErrorDetector.AmbiguityDetector.AmbiguityListener;
import xlogo.interfaces.ErrorDetector.FileErrorCollector;
import xlogo.kernel.userspace.procedures.Procedure;
public class ErrorManager implements FileErrorCollector
{
private final FileErrorCollector fileErrorDetector;
private final AmbiguityDetector ambiguityDetector;
private final HashMap<String, Void> errorFiles = new HashMap<String, Void>();
private final HashMap<String, Collection<String>> ambiguousProcToFiles = new HashMap<String, Collection<String>>();
private final ArrayList<ErrorListener> errorListeners = new ArrayList<ErrorListener>();
public ErrorManager(FileErrorCollector fileErrorDetector, AmbiguityDetector ambiguityDetector)
{
this.fileErrorDetector = fileErrorDetector;
this.ambiguityDetector = ambiguityDetector;
initListeners();
}
private void initListeners()
{
fileErrorDetector.addErrorListener(new ErrorListener(){
@Override
public void errorsDetected(String fileName)
{
errorFiles.put(fileName, null);
notifyErrorDetected(fileName);
}
@Override
public void allErrorsCorrected(String fileName)
{
errorFiles.remove(fileName);
for (Collection<String> fileNames : ambiguousProcToFiles.values())
{
if (fileNames.contains(fileName))
return;
}
// no more errors or ambiguities found
notifyAllErrorsCorrected(fileName);
}
});
ambiguityDetector.addAmbiguityListener(new AmbiguityListener(){
@Override
public void ambiguityResolved(String procedureName, String fileName)
{
Collection<String> ambigFiles = ambiguousProcToFiles.get(procedureName);
ambigFiles.remove(fileName);
if (ambigFiles.size() == 0)
ambiguousProcToFiles.remove(procedureName);
// [this check is not necessary. if it was ambiguous, it did not have errors.]
//if (errorFiles.containsKey(fileName))
// return;
// No more file errors
for (Collection<String> fileNames : ambiguousProcToFiles.values())
{
if (fileNames.contains(fileName))
return;
}
// No more ambiguities for file
notifyAllErrorsCorrected(fileName);
}
@Override
public void ambiguityDetected(String procedureName, Map<String, Procedure> fileToProcedure)
{
ambiguousProcToFiles.put(procedureName, new ArrayList<String>(fileToProcedure.keySet()));
for (String fileName : fileToProcedure.keySet())
notifyErrorDetected(fileName);
}
});
}
@Override
public boolean hasErrors()
{
return errorFiles.size() > 0 || ambiguousProcToFiles.size() > 0;
}
@Override
public boolean hasErrors(String fileName)
{
if (errorFiles.containsKey(fileName))
return true;
for (Collection<String> conflictingFiles : ambiguousProcToFiles.values())
if (conflictingFiles.contains(fileName))
return true;
return false;
}
@Override
public Collection<ProcedureErrorMessage> getAllErrors()
{
ArrayList<ProcedureErrorMessage> allErrorMessages = new ArrayList<ProcedureErrorMessage>();
// Not the most efficient impl possible
allErrorMessages.addAll(fileErrorDetector.getAllErrors());
allErrorMessages.addAll(ambiguityDetector.getAllErrors());
return allErrorMessages;
}
@Override
public Collection<String> getAllErroneousFiles()
{
TreeMap<String, Void> allErrorFiles = new TreeMap<String, Void>();
for(String fileName : errorFiles.keySet())
allErrorFiles.put(fileName, null);
for(Collection<String> files : ambiguousProcToFiles.values())
for(String fileName : files)
allErrorFiles.put(fileName, null);
return allErrorFiles.keySet();
}
public Collection<String> getErrorMessages(String fileName)
{
ArrayList<String> messages = new ArrayList<String>();
for(ProcedureErrorMessage pem : getAllErrors())
if(pem.fileNames.contains(fileName))
messages.add(pem.toString());
return messages;
}
// These error event will directly update the gui => run on event dispatcher thread
@Override
public void addErrorListener(ErrorListener listener)
{
errorListeners.add(listener);
}
@Override
public void removeErrorListener(ErrorListener listener)
{
errorListeners.remove(listener);
}
private void notifyErrorDetected(final String fileName)
{
for (ErrorListener listener : errorListeners)
listener.errorsDetected(fileName);
}
private void notifyAllErrorsCorrected(final String fileName)
{
for (ErrorListener listener : errorListeners)
listener.allErrorsCorrected(fileName);
}
}
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