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 name + ":\n" +
  28                                         t.getMessage().replaceAll("(?m)^", "  ");
  29                 } else if (t instanceof SCLDatabaseException) {
  30                         StringBuilder sb = new StringBuilder();
  31                         sb.append(name + ":\n");
  32                         sb.append(t.getMessage().replaceAll("(?m)^", "  "));
  33                         return sb.toString();
  34                 } else if (t instanceof NotFoundException) {
  35                         return t.getMessage();
  36                 } else if (t instanceof ImportFailureException) {
  37                         ImportFailureException e = (ImportFailureException)t;
  38                         StringBuilder sb = new StringBuilder();
  39                         sb.append("The following SCL modules failed to compile:\n");
  40                         for(ImportFailure f : e.failures)
  41                                 sb.append(" " + f.moduleName + "\n");
  42                         return sb.toString();
  43                 } else {
  44                     LOGGER.error("Node request error:", t);
  45
  46                         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  47                         PrintStream ps = new PrintStream(baos);
  48                         t.printStackTrace(ps);
  49                         try {
  50                                 return baos.toString("UTF-8");
  51                         } catch (UnsupportedEncodingException e) {
  52                                 return baos.toString();
  53                         }
  54
  55                 }
  56         }
  57
  58 }