Examples of org.apache.pig.PigException

org.apache.pig.PigException
All exceptions in Pig are encapsulated in the PigException class. Details such as the source of the error, error message, error code, etc. are contained in this class. The default values for the attributes are: errorSource = BUG errorCode = 0 retriable = false detailedMessage = null

      PigHCatUtil.getHCatServerPrincipal(job));
    HCatSchema hcatTableSchema = HCatUtil.getTableSchemaWithPtnCols(table);
    try {
      PigHCatUtil.validateHCatTableSchemaFollowsPigRules(hcatTableSchema);
    } catch (IOException e) {
      throw new PigException(
        "Table schema incompatible for reading through HCatLoader :" + e.getMessage()
          + ";[Table schema was " + hcatTableSchema.toString() + "]"
        , PigHCatUtil.PIG_EXCEPTION_CODE, e);
    }
    storeInUDFContext(signature, HCatConstants.HCAT_TABLE_SCHEMA, hcatTableSchema);

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      return HCatUtil.getDbAndTableName(location);
    } catch (IOException e) {
      String locationErrMsg = "The input location in load statement " +
        "should be of the form " +
        "<databasename>.<table name> or <table name>. Got " + location;
      throw new PigException(locationErrMsg, PIG_EXCEPTION_CODE);
    }
  }

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    HiveMetaStoreClient client = null;
    try {
      client = getHiveMetaClient(hcatServerUri, hcatServerPrincipal, PigHCatUtil.class);
      table = HCatUtil.getTable(client, dbName, tableName);
    } catch (NoSuchObjectException nsoe) {
      throw new PigException("Table not found : " + nsoe.getMessage(), PIG_EXCEPTION_CODE); // prettier error messages to frontend
    } catch (Exception e) {
      throw new IOException(e);
    } finally {
      HCatUtil.closeHiveClientQuietly(client);
    }

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    if (type == Type.BOOLEAN && pigHasBooleanSupport) {
      return DataType.BOOLEAN;
    }


    throw new PigException("HCatalog column type '" + type.toString()
        + "' is not supported in Pig as a column type", PIG_EXCEPTION_CODE);
  }

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    try {
      Type hType = hcatField.getType();
      switch (hType) {
      case BOOLEAN:
        if (!pigHasBooleanSupport) {
          throw new PigException("Incompatible type found in HCat table schema: "
              + hcatField, PigHCatUtil.PIG_EXCEPTION_CODE);
        }
        break;
      case ARRAY:
        validateHCatSchemaFollowsPigRules(hcatField.getArrayElementSchema());
        break;
      case STRUCT:
        validateHCatSchemaFollowsPigRules(hcatField.getStructSubSchema());
        break;
      case MAP:
        // key is only string
        if (hcatField.getMapKeyType() != Type.STRING) {
          LOG.info("Converting non-String key of map " + hcatField.getName() + " from "
            + hcatField.getMapKeyType() + " to String.");
        }
        validateHCatSchemaFollowsPigRules(hcatField.getMapValueSchema());
        break;
      }
    } catch (HCatException e) {
      throw new PigException("Incompatible type found in hcat table schema: " + hcatField, PigHCatUtil.PIG_EXCEPTION_CODE, e);
    }
  }

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        HCatOutputFormat.setOutput(job, outputJobInfo);
      } catch (HCatException he) {
        // pass the message to the user - essentially something about
        // the table
        // information passed to HCatOutputFormat was not right
        throw new PigException(he.getMessage(),
          PigHCatUtil.PIG_EXCEPTION_CODE, he);
      }
      HCatSchema hcatTblSchema = HCatOutputFormat.getTableSchema(job);
      try {
        doSchemaValidations(pigSchema, hcatTblSchema);

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      server.registerQuery("A = load '" + INPUT_FILE_NAME + "' as (a:int, b:chararray);");
      server.registerQuery("B = foreach A generate a+10, b;");
      server.registerQuery("store B into 'junit_parted' using " + HCatStorer.class.getName() + "('ds=20100101');");
      server.executeBatch();
    } catch (PigException fe) {
      PigException pe = LogUtils.getPigException(fe);
      Assert.assertTrue(pe instanceof FrontendException);
      Assert.assertEquals(PigHCatUtil.PIG_EXCEPTION_CODE, pe.getErrorCode());
      Assert.assertTrue(pe.getMessage().contains("Column name for a field is not specified. Please provide the full schema as an argument to HCatStorer."));
      errCaught = true;
    }
    Assert.assertTrue(errCaught);
    errCaught = false;
    try {
      server.setBatchOn();
      server.registerQuery("A = load '" + INPUT_FILE_NAME + "' as (a:int, B:chararray);");
      server.registerQuery("B = foreach A generate a, B;");
      server.registerQuery("store B into 'junit_parted' using " + HCatStorer.class.getName() + "('ds=20100101');");
      server.executeBatch();
    } catch (PigException fe) {
      PigException pe = LogUtils.getPigException(fe);
      Assert.assertTrue(pe instanceof FrontendException);
      Assert.assertEquals(PigHCatUtil.PIG_EXCEPTION_CODE, pe.getErrorCode());
      Assert.assertTrue(pe.getMessage().contains("Column names should all be in lowercase. Invalid name found: B"));
      errCaught = true;
    }
    driver.run("drop table junit_parted");
    Assert.assertTrue(errCaught);
  }

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      PigHCatUtil.getHCatServerPrincipal(job));
    HCatSchema hcatTableSchema = HCatUtil.getTableSchemaWithPtnCols(table);
    try {
      PigHCatUtil.validateHCatTableSchemaFollowsPigRules(hcatTableSchema);
    } catch (IOException e) {
      throw new PigException(
        "Table schema incompatible for reading through HCatLoader :" + e.getMessage()
          + ";[Table schema was " + hcatTableSchema.toString() + "]"
        , PigHCatUtil.PIG_EXCEPTION_CODE, e);
    }
    storeInUDFContext(signature, HCatConstants.HCAT_TABLE_SCHEMA, hcatTableSchema);

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      return HCatUtil.getDbAndTableName(location);
    } catch (IOException e) {
      String locationErrMsg = "The input location in load statement " +
        "should be of the form " +
        "<databasename>.<table name> or <table name>. Got " + location;
      throw new PigException(locationErrMsg, PIG_EXCEPTION_CODE);
    }
  }

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    HiveMetaStoreClient client = null;
    try {
      client = getHiveMetaClient(hcatServerUri, hcatServerPrincipal, PigHCatUtil.class);
      table = HCatUtil.getTable(client, dbName, tableName);
    } catch (NoSuchObjectException nsoe) {
      throw new PigException("Table not found : " + nsoe.getMessage(), PIG_EXCEPTION_CODE); // prettier error messages to frontend
    } catch (Exception e) {
      throw new IOException(e);
    } finally {
      HCatUtil.closeHiveClientQuietly(client);
    }

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