How to use

getMessage

method

in

org.apache.hive.hcatalog.common.HCatException

@Override
public String toString() {
 return getMessage();
}

 /** Constructs HCatSchema from pigSchema. Passed tableSchema is the existing
  * schema of the table in metastore.
  */
 protected HCatSchema convertPigSchemaToHCatSchema(Schema pigSchema, HCatSchema tableSchema) throws FrontendException {
  if(LOG.isDebugEnabled()) {
   LOG.debug("convertPigSchemaToHCatSchema(pigSchema,tblSchema)=(" + pigSchema + "," + tableSchema + ")");
  }
  List<HCatFieldSchema> fieldSchemas = new ArrayList<HCatFieldSchema>(pigSchema.size());
  for (FieldSchema fSchema : pigSchema.getFields()) {
   try {
    HCatFieldSchema hcatFieldSchema = getColFromSchema(fSchema.alias, tableSchema);
    //if writing to a partitioned table, then pigSchema will have more columns than tableSchema
    //partition columns are not part of tableSchema... e.g. TestHCatStorer#testPartColsInData()
//        HCatUtil.assertNotNull(hcatFieldSchema, "Nothing matching '" + fSchema.alias + "' found " +
//                "in target table schema", LOG);
    fieldSchemas.add(getHCatFSFromPigFS(fSchema, hcatFieldSchema, pigSchema, tableSchema));
   } catch (HCatException he) {
    throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);
   }
  }
  
  HCatSchema s = new HCatSchema(fieldSchemas);
  LOG.debug("convertPigSchemaToHCatSchema(computed)=(" + s + ")");
  return s;
 }

 throw new PigException(he.getMessage(),
  PigHCatUtil.PIG_EXCEPTION_CODE, he);
 doSchemaValidations(pigSchema, hcatTblSchema);
} catch (HCatException he) {
 throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);

public void testRemoveAddField() throws HCatException {
 List<HCatFieldSchema> fieldSchemaList = new ArrayList<HCatFieldSchema>();
 fieldSchemaList.add(new HCatFieldSchema("memberID", HCatFieldSchema.Type.INT, "as a number"));
 HCatFieldSchema locationField = new HCatFieldSchema("location", HCatFieldSchema.Type.STRING, "there's Waldo");
 fieldSchemaList.add(locationField);
 HCatSchema schema = new HCatSchema(fieldSchemaList);
 schema.remove(locationField);
 Integer position = schema.getPosition(locationField.getName());
 assertTrue("position is not null after remove" , position == null);
 try {
  schema.append(locationField);
 }
 catch (HCatException ex) {
  assertFalse(ex.getMessage(), true);
 }
}

public void testCannotAddFieldMoreThanOnce() throws HCatException {
 List<HCatFieldSchema> fieldSchemaList = new ArrayList<HCatFieldSchema>();
 fieldSchemaList.add(new HCatFieldSchema("name", HCatFieldSchema.Type.STRING, "What's your handle?"));
 fieldSchemaList.add(new HCatFieldSchema("age", HCatFieldSchema.Type.INT, "So very old"));
 HCatSchema schema = new HCatSchema(fieldSchemaList);
 assertTrue(schema.getFieldNames().contains("age"));
 assertEquals(2, schema.getFields().size());
 try {
  schema.append(new HCatFieldSchema("age", HCatFieldSchema.Type.INT, "So very old"));
  fail("Was able to append field schema with same name");
 } catch (HCatException he) {
  assertTrue(he.getMessage().contains("Attempt to append HCatFieldSchema with already existing name: age."));
 }
 assertTrue(schema.getFieldNames().contains("age"));
 assertEquals(2, schema.getFields().size());
 // Should also not be able to add fields of different types with same name
 try {
  schema.append(new HCatFieldSchema("age", HCatFieldSchema.Type.STRING, "Maybe spelled out?"));
  fail("Was able to append field schema with same name");
 } catch (HCatException he) {
  assertTrue(he.getMessage().contains("Attempt to append HCatFieldSchema with already existing name: age."));
 }
 assertTrue(schema.getFieldNames().contains("age"));
 assertEquals(2, schema.getFields().size());
}

@Test
public void testRenameTable() throws Exception {
 HCatClient client = HCatClient.create(new Configuration(hcatConf));
 String tableName = "temptable";
 String newName = "mytable";
 client.dropTable(null, tableName, true);
 client.dropTable(null, newName, true);
 ArrayList<HCatFieldSchema> cols = new ArrayList<HCatFieldSchema>();
 cols.add(new HCatFieldSchema("id", Type.INT, "id columns"));
 cols.add(new HCatFieldSchema("value", Type.STRING, "id columns"));
 HCatCreateTableDesc tableDesc = HCatCreateTableDesc
  .create(null, tableName, cols).fileFormat("rcfile").build();
 client.createTable(tableDesc);
 client.renameTable(null, tableName, newName);
 try {
  client.getTable(null, tableName);
 } catch (HCatException exp) {
  assertTrue("Unexpected exception message: " + exp.getMessage(),
    exp.getMessage().contains("NoSuchObjectException while fetching table"));
 }
 HCatTable newTable = client.getTable(null, newName);
 assertTrue(newTable != null);
 assertTrue(newTable.getTableName().equals(newName));
 client.close();
}

 fail("Expected exception");
} catch (HCatException e) {
 assertTrue(e.getMessage().contains(
  "AlreadyExistsException while creating table."));

@Override
public String toString() {
 return getMessage();
}

@Override
public String toString() {
 return getMessage();
}

@Override
public String toString() {
 return getMessage();
}

@Override
public String toString() {
 return getMessage();
}

 /** Constructs HCatSchema from pigSchema. Passed tableSchema is the existing
  * schema of the table in metastore.
  */
 protected HCatSchema convertPigSchemaToHCatSchema(Schema pigSchema, HCatSchema tableSchema) throws FrontendException {
  if(LOG.isDebugEnabled()) {
   LOG.debug("convertPigSchemaToHCatSchema(pigSchema,tblSchema)=(" + pigSchema + "," + tableSchema + ")");
  }
  List<HCatFieldSchema> fieldSchemas = new ArrayList<HCatFieldSchema>(pigSchema.size());
  for (FieldSchema fSchema : pigSchema.getFields()) {
   try {
    HCatFieldSchema hcatFieldSchema = getColFromSchema(fSchema.alias, tableSchema);
    //if writing to a partitioned table, then pigSchema will have more columns than tableSchema
    //partition columns are not part of tableSchema... e.g. TestHCatStorer#testPartColsInData()
//        HCatUtil.assertNotNull(hcatFieldSchema, "Nothing matching '" + fSchema.alias + "' found " +
//                "in target table schema", LOG);
    fieldSchemas.add(getHCatFSFromPigFS(fSchema, hcatFieldSchema, pigSchema, tableSchema));
   } catch (HCatException he) {
    throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);
   }
  }
  
  HCatSchema s = new HCatSchema(fieldSchemas);
  LOG.debug("convertPigSchemaToHCatSchema(computed)=(" + s + ")");
  return s;
 }

 /** Constructs HCatSchema from pigSchema. Passed tableSchema is the existing
  * schema of the table in metastore.
  */
 protected HCatSchema convertPigSchemaToHCatSchema(Schema pigSchema, HCatSchema tableSchema) throws FrontendException {
  if(LOG.isDebugEnabled()) {
   LOG.debug("convertPigSchemaToHCatSchema(pigSchema,tblSchema)=(" + pigSchema + "," + tableSchema + ")");
  }
  List<HCatFieldSchema> fieldSchemas = new ArrayList<HCatFieldSchema>(pigSchema.size());
  for (FieldSchema fSchema : pigSchema.getFields()) {
   try {
    HCatFieldSchema hcatFieldSchema = getColFromSchema(fSchema.alias, tableSchema);
    //if writing to a partitioned table, then pigSchema will have more columns than tableSchema
    //partition columns are not part of tableSchema... e.g. TestHCatStorer#testPartColsInData()
//        HCatUtil.assertNotNull(hcatFieldSchema, "Nothing matching '" + fSchema.alias + "' found " +
//                "in target table schema", LOG);
    fieldSchemas.add(getHCatFSFromPigFS(fSchema, hcatFieldSchema, pigSchema, tableSchema));
   } catch (HCatException he) {
    throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);
   }
  }
  
  HCatSchema s = new HCatSchema(fieldSchemas);
  LOG.debug("convertPigSchemaToHCatSchema(computed)=(" + s + ")");
  return s;
 }

 throw new PigException(he.getMessage(),
  PigHCatUtil.PIG_EXCEPTION_CODE, he);
 doSchemaValidations(pigSchema, hcatTblSchema);
} catch (HCatException he) {
 throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);

 throw new PigException(he.getMessage(),
  PigHCatUtil.PIG_EXCEPTION_CODE, he);
 doSchemaValidations(pigSchema, hcatTblSchema);
} catch (HCatException he) {
 throw new FrontendException(he.getMessage(), PigHCatUtil.PIG_EXCEPTION_CODE, he);