plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/MograsimBuilder.java

   1 package net.mograsim.plugin.nature;
   2
   3 import java.util.Map;
   4
   5 import javax.xml.parsers.ParserConfigurationException;
   6 import javax.xml.parsers.SAXParser;
   7 import javax.xml.parsers.SAXParserFactory;
   8
   9 import org.eclipse.core.resources.IFile;
  10 import org.eclipse.core.resources.IMarker;
  11 import org.eclipse.core.resources.IProject;
  12 import org.eclipse.core.resources.IResource;
  13 import org.eclipse.core.resources.IResourceDelta;
  14 import org.eclipse.core.resources.IResourceDeltaVisitor;
  15 import org.eclipse.core.resources.IResourceVisitor;
  16 import org.eclipse.core.resources.IncrementalProjectBuilder;
  17 import org.eclipse.core.runtime.CoreException;
  18 import org.eclipse.core.runtime.IProgressMonitor;
  19 import org.xml.sax.SAXException;
  20 import org.xml.sax.SAXParseException;
  21 import org.xml.sax.helpers.DefaultHandler;
  22
  23 public class MograsimBuilder extends IncrementalProjectBuilder
  24 {
  25         private MachineContext machineContext;
  26
  27         class SampleDeltaVisitor implements IResourceDeltaVisitor
  28         {
  29                 @Override
  30                 public boolean visit(IResourceDelta delta) throws CoreException
  31                 {
  32                         IResource resource = delta.getResource();
  33                         switch (delta.getKind())
  34                         {
  35                         case IResourceDelta.ADDED:
  36                                 // handle added resource
  37                                 checkXML(resource);
  38                                 break;
  39                         case IResourceDelta.REMOVED:
  40                                 // handle removed resource
  41                                 break;
  42                         case IResourceDelta.CHANGED:
  43                                 // handle changed resource
  44                                 checkXML(resource);
  45                                 break;
  46                         }
  47                         // return true to continue visiting children.
  48                         return true;
  49                 }
  50         }
  51
  52         class SampleResourceVisitor implements IResourceVisitor
  53         {
  54                 @Override
  55                 public boolean visit(IResource resource)
  56                 {
  57                         checkXML(resource);
  58                         // return true to continue visiting children.
  59                         return true;
  60                 }
  61         }
  62
  63         class XMLErrorHandler extends DefaultHandler
  64         {
  65
  66                 private IFile file;
  67
  68                 public XMLErrorHandler(IFile file)
  69                 {
  70                         this.file = file;
  71                 }
  72
  73                 private void addMarker(SAXParseException e, int severity)
  74                 {
  75                         MograsimBuilder.this.addMarker(file, e.getMessage(), e.getLineNumber(), severity);
  76                 }
  77
  78                 @Override
  79                 public void error(SAXParseException exception) throws SAXException
  80                 {
  81                         addMarker(exception, IMarker.SEVERITY_ERROR);
  82                 }
  83
  84                 @Override
  85                 public void fatalError(SAXParseException exception) throws SAXException
  86                 {
  87                         addMarker(exception, IMarker.SEVERITY_ERROR);
  88                 }
  89
  90                 @Override
  91                 public void warning(SAXParseException exception) throws SAXException
  92                 {
  93                         addMarker(exception, IMarker.SEVERITY_WARNING);
  94                 }
  95         }
  96
  97         public static final String BUILDER_ID = "net.mograsim.plugin.core.mograsimBuilder";
  98
  99         private static final String MARKER_TYPE = "net.mograsim.plugin.core.asmProblem";
 100
 101         private SAXParserFactory parserFactory;
 102
 103         private void addMarker(IFile file, String message, int lineNumber, int severity)
 104         {
 105                 try
 106                 {
 107                         IMarker marker = file.createMarker(MARKER_TYPE);
 108                         marker.setAttribute(IMarker.MESSAGE, message);
 109                         marker.setAttribute(IMarker.SEVERITY, severity);
 110                         if (lineNumber == -1)
 111                         {
 112                                 lineNumber = 1;
 113                         }
 114                         marker.setAttribute(IMarker.LINE_NUMBER, lineNumber);
 115                 }
 116                 catch (CoreException e)
 117                 {
 118                 }
 119         }
 120
 121         @Override
 122         protected void startupOnInitialize()
 123         {
 124                 super.startupOnInitialize();
 125                 machineContext = ProjectMachineContext.getMachineContextOf(getProject());
 126         }
 127
 128         @Override
 129         protected IProject[] build(int kind, Map<String, String> args, IProgressMonitor monitor) throws CoreException
 130         {
 131                 if (kind == FULL_BUILD)
 132                 {
 133                         fullBuild(monitor);
 134                 } else
 135                 {
 136                         IResourceDelta delta = getDelta(getProject());
 137                         if (delta == null)
 138                         {
 139                                 fullBuild(monitor);
 140                         } else
 141                         {
 142                                 incrementalBuild(delta, monitor);
 143                         }
 144                 }
 145                 return null;
 146         }
 147
 148         @Override
 149         protected void clean(IProgressMonitor monitor) throws CoreException
 150         {
 151                 // delete markers set and files created
 152                 getProject().deleteMarkers(MARKER_TYPE, true, IResource.DEPTH_INFINITE);
 153         }
 154
 155         void checkXML(IResource resource)
 156         {
 157                 if (resource instanceof IFile && resource.getName().endsWith(".asm"))
 158                 {
 159                         IFile file = (IFile) resource;
 160                         deleteMarkers(file);
 161                         XMLErrorHandler reporter = new XMLErrorHandler(file);
 162                         try
 163                         {
 164                                 getParser().parse(file.getContents(), reporter);
 165                         }
 166                         catch (Exception e1)
 167                         {
 168                         }
 169                 }
 170         }
 171
 172         private void deleteMarkers(IFile file)
 173         {
 174                 try
 175                 {
 176                         file.deleteMarkers(MARKER_TYPE, false, IResource.DEPTH_ZERO);
 177                 }
 178                 catch (CoreException ce)
 179                 {
 180                 }
 181         }
 182
 183         protected void fullBuild(final IProgressMonitor monitor) throws CoreException
 184         {
 185                 try
 186                 {
 187                         getProject().accept(new SampleResourceVisitor());
 188                 }
 189                 catch (CoreException e)
 190                 {
 191                 }
 192         }
 193
 194         private SAXParser getParser() throws ParserConfigurationException, SAXException
 195         {
 196                 if (parserFactory == null)
 197                 {
 198                         parserFactory = SAXParserFactory.newInstance();
 199                 }
 200                 return parserFactory.newSAXParser();
 201         }
 202
 203         protected void incrementalBuild(IResourceDelta delta, IProgressMonitor monitor) throws CoreException
 204         {
 205                 // the visitor does the work.
 206                 delta.accept(new SampleDeltaVisitor());
 207         }
 208 }