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# -*- coding: utf-8 -*- # # Copyright (c) 2013 Red Hat, Inc. # # Licensed 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. # from redhat_support_tool.helpers.confighelper import _ from redhat_support_tool.symptoms import AnalyzerPlugin try: from pyparsing import Word, Suppress, Combine, SkipTo, Regex, nums, \ LineStart except ImportError: from redhat_support_tool.tools.pyparsing import Word, Suppress, Combine, \ SkipTo, Regex, nums, LineStart __author__ = 'Dan Varga <dvarga@redhat.com>' __author__ = 'Keith Robertson <kroberts@redhat.com>' class JavaStackTraceAnalyzer(AnalyzerPlugin): ''' This is a pyparsing expression that will match Java Stack Traces that exist in a text file ''' @classmethod def get_symptom(self): loglevel = LineStart() + Word(nums) analyze_expression = Combine(Regex(".*Exception:") + SkipTo(Suppress(loglevel), include=True)) return analyze_expression @classmethod def get_desc(cls): ''' Simple explanation on what the expression tries to find at a high level ''' return _('This analyzer attempts to locate faults which match the ' 'typical Java stack trace pattern.') @classmethod def get_sample(cls): ''' A sample pattern that would produce a match ''' return ''' Matched Pattern Example: javax.el.ELException: java.lang.NullPointerException at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:339) at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:280) at org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59) at org.jboss.el.parser.AstMethodSuffix.invoke(AstMethodSuffix.java:65) 16:08:59,682 ... ''' @classmethod def get_name(cls): ''' Human readable name for the expression ''' return _('Java Stack Trace')
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