bundles/org.simantics.export.core/src/org/simantics/export/core/manager/TransferableGraphWriter.java

   1 package org.simantics.export.core.manager;\r
   2 \r
   3 import java.io.File;\r
   4 import java.io.IOException;\r
   5 import java.util.TreeMap;\r
   6 \r
   7 import org.simantics.databoard.binding.Binding;\r
   8 import org.simantics.databoard.binding.mutable.Variant;\r
   9 import org.simantics.databoard.container.DataContainer;\r
  10 import org.simantics.databoard.container.DataContainers;\r
  11 import org.simantics.db.RequestProcessor;\r
  12 import org.simantics.export.core.error.ExportException;\r
  13 import org.simantics.graph.db.TransferableGraphSource;\r
  14 import org.simantics.graph.db.TransferableGraphs;\r
  15 \r
  16 public class TransferableGraphWriter {\r
  17 \r
  18         public final File file;         \r
  19         public final String format;\r
  20         public final int version;\r
  21         \r
  22         public TransferableGraphWriter(File file, String format, int version) {\r
  23                 this.file = file;\r
  24                 this.format = format;\r
  25                 this.version = version;\r
  26         }\r
  27         \r
  28         /**\r
  29          * Write TG to the file that is associated with this writer.\r
  30          * \r
  31          * @param tgBinding\r
  32          * @param tg\r
  33          * @throws ExportException\r
  34          */\r
  35         public void writeFile(Binding tgBinding, Object tg) throws ExportException {\r
  36         try {\r
  37                 Variant variant = new Variant(tgBinding, tg);\r
  38                 DataContainer dataContainer = new DataContainer(format, version, variant);\r
  39                         DataContainers.writeFile(file, dataContainer);\r
  40                 } catch (IOException e) {\r
  41                         throw new ExportException( "I/O Error occured: "+e.getMessage() );\r
  42                 }                               \r
  43         }\r
  44         \r
  45         /**\r
  46          * Write from TG Source to the file that is associated with this writer.\r
  47          *  \r
  48          * @param session request processor to be used for reading the source\r
  49          * @param source TG source\r
  50          * @throws ExportException\r
  51          */\r
  52         public void writeFile(RequestProcessor session, TransferableGraphSource source) throws ExportException\r
  53         {\r
  54                 writeFile(session, source, new TreeMap<String, Variant>());\r
  55         }\r
  56 \r
  57         /**\r
  58          * Write from TG Source to the file that is associated with this writer.\r
  59          *  \r
  60          * @param session request processor to be used for reading the source\r
  61          * @param source TG source\r
  62          * @throws ExportException\r
  63          */\r
  64         public void writeFile(RequestProcessor session, TransferableGraphSource source, TreeMap<String,Variant> metadata) throws ExportException\r
  65         {\r
  66                 try {\r
  67                         TransferableGraphs.writeTransferableGraph(\r
  68                                         session, \r
  69                                         format, \r
  70                                         version, \r
  71                                         metadata, \r
  72                                         source, \r
  73                                         file);\r
  74                 } catch (Exception e) {\r
  75                         throw new ExportException(e);\r
  76                 }\r
  77         }\r
  78 \r
  79 }\r