a1e40b1f5d
## What changes were proposed in this pull request? There are many locations in the Spark repo where the same word occurs consecutively. Sometimes they are appropriately placed, but many times they are not. This PR removes the inappropriately duplicated words. ## How was this patch tested? N/A since only docs or comments were updated. Author: Niranjan Padmanabhan <niranjan.padmanabhan@gmail.com> Closes #16455 from neurons/np.structure_streaming_doc.
113 lines
3.9 KiB
Python
113 lines
3.9 KiB
Python
#
|
|
# Licensed to the Apache Software Foundation (ASF) under one or more
|
|
# contributor license agreements. See the NOTICE file distributed with
|
|
# this work for additional information regarding copyright ownership.
|
|
# The ASF licenses this file to You under the Apache License, Version 2.0
|
|
# (the "License"); you may not use this file except in compliance with
|
|
# the License. You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
|
|
import py4j
|
|
|
|
|
|
class CapturedException(Exception):
|
|
def __init__(self, desc, stackTrace):
|
|
self.desc = desc
|
|
self.stackTrace = stackTrace
|
|
|
|
def __str__(self):
|
|
return repr(self.desc)
|
|
|
|
|
|
class AnalysisException(CapturedException):
|
|
"""
|
|
Failed to analyze a SQL query plan.
|
|
"""
|
|
|
|
|
|
class ParseException(CapturedException):
|
|
"""
|
|
Failed to parse a SQL command.
|
|
"""
|
|
|
|
|
|
class IllegalArgumentException(CapturedException):
|
|
"""
|
|
Passed an illegal or inappropriate argument.
|
|
"""
|
|
|
|
|
|
class StreamingQueryException(CapturedException):
|
|
"""
|
|
Exception that stopped a :class:`StreamingQuery`.
|
|
"""
|
|
|
|
|
|
class QueryExecutionException(CapturedException):
|
|
"""
|
|
Failed to execute a query.
|
|
"""
|
|
|
|
|
|
def capture_sql_exception(f):
|
|
def deco(*a, **kw):
|
|
try:
|
|
return f(*a, **kw)
|
|
except py4j.protocol.Py4JJavaError as e:
|
|
s = e.java_exception.toString()
|
|
stackTrace = '\n\t at '.join(map(lambda x: x.toString(),
|
|
e.java_exception.getStackTrace()))
|
|
if s.startswith('org.apache.spark.sql.AnalysisException: '):
|
|
raise AnalysisException(s.split(': ', 1)[1], stackTrace)
|
|
if s.startswith('org.apache.spark.sql.catalyst.analysis'):
|
|
raise AnalysisException(s.split(': ', 1)[1], stackTrace)
|
|
if s.startswith('org.apache.spark.sql.catalyst.parser.ParseException: '):
|
|
raise ParseException(s.split(': ', 1)[1], stackTrace)
|
|
if s.startswith('org.apache.spark.sql.streaming.StreamingQueryException: '):
|
|
raise StreamingQueryException(s.split(': ', 1)[1], stackTrace)
|
|
if s.startswith('org.apache.spark.sql.execution.QueryExecutionException: '):
|
|
raise QueryExecutionException(s.split(': ', 1)[1], stackTrace)
|
|
if s.startswith('java.lang.IllegalArgumentException: '):
|
|
raise IllegalArgumentException(s.split(': ', 1)[1], stackTrace)
|
|
raise
|
|
return deco
|
|
|
|
|
|
def install_exception_handler():
|
|
"""
|
|
Hook an exception handler into Py4j, which could capture some SQL exceptions in Java.
|
|
|
|
When calling Java API, it will call `get_return_value` to parse the returned object.
|
|
If any exception happened in JVM, the result will be Java exception object, it raise
|
|
py4j.protocol.Py4JJavaError. We replace the original `get_return_value` with one that
|
|
could capture the Java exception and throw a Python one (with the same error message).
|
|
|
|
It's idempotent, could be called multiple times.
|
|
"""
|
|
original = py4j.protocol.get_return_value
|
|
# The original `get_return_value` is not patched, it's idempotent.
|
|
patched = capture_sql_exception(original)
|
|
# only patch the one used in py4j.java_gateway (call Java API)
|
|
py4j.java_gateway.get_return_value = patched
|
|
|
|
|
|
def toJArray(gateway, jtype, arr):
|
|
"""
|
|
Convert python list to java type array
|
|
:param gateway: Py4j Gateway
|
|
:param jtype: java type of element in array
|
|
:param arr: python type list
|
|
"""
|
|
jarr = gateway.new_array(jtype, len(arr))
|
|
for i in range(0, len(arr)):
|
|
jarr[i] = arr[i]
|
|
return jarr
|