bundles/org.simantics.document.server/src/org/simantics/document/server/request/NodeRequestUtils.java

   1 package org.simantics.document.server.request;
   2
   3 import java.io.ByteArrayOutputStream;
   4 import java.io.PrintStream;
   5 import java.io.UnsupportedEncodingException;
   6
   7 import org.simantics.db.layer0.exception.MissingVariableException;
   8 import org.simantics.db.layer0.scl.SCLDatabaseException;
   9 import org.simantics.document.server.DocumentException;
  10 import org.simantics.scl.compiler.module.repository.ImportFailure;
  11 import org.simantics.scl.compiler.module.repository.ImportFailureException;
  12 import org.simantics.scl.compiler.top.NotFoundException;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 public class NodeRequestUtils {
  17     private static final Logger LOGGER = LoggerFactory.getLogger(NodeRequestUtils.class);
  18
  19         public static String formatErrorMessage(String name, Throwable t) {
  20
  21                 while(t.getCause() != null)
  22             t = t.getCause();
  23
  24                 if (t instanceof DocumentException) {
  25                         return t.getMessage();
  26                 } else if (t instanceof MissingVariableException) {
  27                         return "Evaluation of property '" + name + "' failed\n" +
  28                                         t.getMessage();
  29                 } else if (t instanceof SCLDatabaseException) {
  30                         return t.getMessage();
  31                 } else if (t instanceof NotFoundException) {
  32                         return t.getMessage();
  33                 } else if (t instanceof ImportFailureException) {
  34                         ImportFailureException e = (ImportFailureException)t;
  35                         StringBuilder sb = new StringBuilder();
  36                         sb.append("The following SCL modules failed to compile:\n");
  37                         for(ImportFailure f : e.failures)
  38                                 sb.append(" " + f.moduleName + "\n");
  39                         return sb.toString();
  40                 } else {
  41                     LOGGER.error("Node request error:", t);
  42
  43                         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  44                         PrintStream ps = new PrintStream(baos);
  45                         t.printStackTrace(ps);
  46                         try {
  47                                 return baos.toString("UTF-8");
  48                         } catch (UnsupportedEncodingException e) {
  49                                 return baos.toString();
  50                         }
  51
  52                 }
  53         }
  54
  55 }