org.simantics.xml.sax.base/src/org/simantics/xml/sax/base/AbstractExporter.java

   1 package org.simantics.xml.sax.base;\r
   2 \r
   3 import java.io.File;\r
   4 import java.io.FileOutputStream;\r
   5 import java.io.IOException;\r
   6 \r
   7 import javax.xml.stream.XMLOutputFactory;\r
   8 import javax.xml.stream.XMLStreamException;\r
   9 import javax.xml.stream.XMLStreamWriter;\r
  10 \r
  11 import org.simantics.db.ReadGraph;\r
  12 import org.simantics.db.Resource;\r
  13 import org.simantics.db.Session;\r
  14 import org.simantics.db.common.request.ReadRequest;\r
  15 import org.simantics.db.exception.DatabaseException;\r
  16 import org.simantics.message.ILogger;\r
  17 import org.simantics.message.MessageService;\r
  18 \r
  19 public class AbstractExporter {\r
  20         \r
  21         private Session session;\r
  22         private File file;\r
  23         private ILogger logger;\r
  24         private Resource root;\r
  25         private XMLWriter xmlWriter;\r
  26         \r
  27         public AbstractExporter(Session session, File file , Resource root, XMLWriter xmlWriter)  {\r
  28                 this.session = session;\r
  29                 this.file = file;\r
  30                 this.root = root;\r
  31                 this.xmlWriter = xmlWriter;\r
  32         }\r
  33         \r
  34         public AbstractExporter(Session session, File file , Resource root)  {\r
  35                 this.session = session;\r
  36                 this.file = file;\r
  37                 this.root = root;\r
  38         }\r
  39         \r
  40         public void setXmlWriter(XMLWriter xmlWriter) {\r
  41                 this.xmlWriter = xmlWriter;\r
  42         }\r
  43         \r
  44         public void doExport() throws DatabaseException {\r
  45                 doExport(MessageService.getDefault());  \r
  46         }\r
  47         \r
  48         public void doExport(ILogger logger) throws DatabaseException {\r
  49                 ExportRequest req = new ExportRequest();\r
  50                 session.syncRequest(req);\r
  51         }\r
  52         \r
  53         \r
  54         private class ExportRequest extends ReadRequest {\r
  55                 @Override\r
  56                 public void run(ReadGraph graph) throws DatabaseException {\r
  57                         XMLStreamWriter writer = null;\r
  58                         try {\r
  59                                 XMLOutputFactory output = XMLOutputFactory.newInstance();\r
  60                                 writer = output.createXMLStreamWriter(new FileOutputStream(file),"UTF-8");\r
  61                                 writer.writeStartDocument("UTF-8", "1.0");\r
  62                                 xmlWriter.write(root, writer);\r
  63                                 \r
  64                                 writer.writeEndDocument();\r
  65                                 writer.close();\r
  66                         } catch (IOException|XMLStreamException e) {\r
  67                                 try {\r
  68                                         writer.close();\r
  69                                 } catch (XMLStreamException err) {\r
  70                                         \r
  71                                 }\r
  72                                 throw new DatabaseException(e);\r
  73                         } \r
  74                         \r
  75                         \r
  76                 }\r
  77         }\r
  78 \r
  79 }\r