feat(exception email): add exception email parser

Closes #2
rollbar · May 18, 2019 · 2d2952c · 2d2952c
1 parent 1b1a210
commit 2d2952c
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diff --git a/force-app/main/default/classes/ExceptionEmailParser.cls b/force-app/main/default/classes/ExceptionEmailParser.cls
@@ -0,0 +1,82 @@
+public with sharing class ExceptionEmailParser {
+    public static ExceptionData parse(String emailBody) {
+
+        System.debug(emailBody);
+
+        ExceptionData exData = new ExceptionData(
+            parseEnvironment(emailBody),
+            parseUserOrg(emailBody),
+            parseClassName(emailBody),
+            parseMessage(emailBody),
+            parseFileName(emailBody),
+            parseContext(emailBody),
+            parseLine(emailBody),
+            parseColumn(emailBody)
+        );
+
+        return exData;
+    }
+
+    public static String parseEnvironment(String emailBody) {
+        return emailBody.split('\\n')[0];
+    }
+
+    public static String parseUserOrg(String emailBody) {
+        return parseContent(
+            'Apex script unhandled( trigger)? exception by user/organization:(\n| )?(.*)',
+            emailBody,
+            3
+        );
+    }
+
+    public static String parseClassName(String emailBody) {
+        return parseContent(
+            'caused by: ([^:]*):.*',
+            emailBody,
+            1
+        );
+    }
+
+    public static String parseMessage(String emailBody) {
+        return parseContent(
+            'caused by: [^:]*: (.*)',
+            emailBody,
+            1
+        );
+    }
+
+    public static String parseFileName(String emailBody) {
+        return parseContent(
+            '(.*): line [0-9]+, column [0-9]+',
+            emailBody,
+            1
+        );
+    }
+
+    public static String parseContext(String emailBody) {
+        return emailBody.split('\\n')[4];
+    }
+
+    public static Integer parseLine(String emailBody) {
+        return Integer.valueOf(parseContent(
+            '.*: line ([0-9]+), column [0-9]+',
+            emailBody,
+            1
+        ));
+    }
+
+    public static Integer parseColumn(String emailBody) {
+        return Integer.valueOf(parseContent(
+            '.*: line [0-9]+, column ([0-9]+)',
+            emailBody,
+            1
+        ));
+    }
+
+    private static String parseContent(String regex, String body, Integer groupToReturn) {
+        Pattern pat = Pattern.compile(regex);
+        Matcher mat = pat.matcher(body);
+        mat.find();
+        return mat.group(groupToReturn);
+    }
+}
diff --git a/force-app/main/default/classes/ExceptionEmailParser.cls-meta.xml b/force-app/main/default/classes/ExceptionEmailParser.cls-meta.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="urn:metadata.tooling.soap.sforce.com" fqn="ExceptionEmailParser">
+    <apiVersion>45.0</apiVersion>
+    <status>Active</status>
+</ApexClass>
diff --git a/force-app/main/default/tests/ExceptionEmailParserTest.cls b/force-app/main/default/tests/ExceptionEmailParserTest.cls
@@ -0,0 +1,100 @@
+@isTest
+public class ExceptionEmailParserTest {
+
+    private static String emailBody = 
+            'Sandbox\n\n' + 
+            'Apex script unhandled exception by user/organization: 0050R000001t3Br/00D0R000000DUxZ' + '\n\n' +
+            'ContactEx: execution of AfterInsert' + '\n\n' +
+            'caused by: System.NullPointerException: Attempt to de-reference a null object' + '\n\n' +
+            'Trigger.ContactEx: line 3, column 1';
+
+    @isTest
+    public static void testParse() {
+        ExceptionData exData = ExceptionEmailParser.parse(emailBody);
+
+        System.assertEquals('Sandbox', exData.environment());
+        System.assertEquals('0050R000001t3Br/00D0R000000DUxZ', exData.userOrg());
+        System.assertEquals('System.NullPointerException', exData.className());
+        System.assertEquals('Attempt to de-reference a null object', exData.message());
+        System.assertEquals('Trigger.ContactEx', exData.fileName());
+        System.assertEquals('ContactEx: execution of AfterInsert', exData.context());
+        System.assertEquals(3, exData.line());
+        System.assertEquals(1, exData.column());
+    }
+
+    @isTest
+    public static void testParseEnvironment() {
+        String result = ExceptionEmailParser.parseEnvironment(emailBody);
+        System.assertEquals('Sandbox', result);
+    }
+
+    @isTest
+    public static void testParseUserOrg() {
+        String result = ExceptionEmailParser.parseUserOrg(emailBody);
+        System.assertEquals('0050R000001t3Br/00D0R000000DUxZ', result);
+    }
+
+    @isTest
+    public static void testParseUserOrgTriggerSyntax() {
+        String emailBody = 'Apex script unhandled trigger exception by user/organization: 0050R000001t3Br/00D0R000000DUxZ';
+        String result = ExceptionEmailParser.parseUserOrg(emailBody);
+        System.assertEquals('0050R000001t3Br/00D0R000000DUxZ', result);
+    }
+
+    @isTest
+    public static void testParseUserOrgNewLineSyntax() {
+        String emailBody = 'Apex script unhandled exception by user/organization:\n0050R000001t3Br/00D0R000000DUxZ';
+        String result = ExceptionEmailParser.parseUserOrg(emailBody);
+        System.assertEquals('0050R000001t3Br/00D0R000000DUxZ', result);
+    }
+
+    @isTest
+    public static void testParseClassName() {
+        String result = ExceptionEmailParser.parseClassName(emailBody);
+        System.assertEquals('System.NullPointerException', result);
+    }
+
+    @isTest
+    public static void testParseClassNameDoubleColon() {
+        String emailBody = 'caused by: System.ListException: List index out of bounds: 2';
+        String result = ExceptionEmailParser.parseClassName(emailBody);
+        System.assertEquals('System.ListException', result);
+    }    
+
+    @isTest
+    public static void testParseMessage() {
+        String result = ExceptionEmailParser.parseMessage(emailBody);
+        System.assertEquals('Attempt to de-reference a null object', result);
+    }
+
+    @isTest
+    public static void testParseMessageDoubleColon() {
+        String emailBody = 'caused by: System.ListException: List index out of bounds: 2';
+        String result = ExceptionEmailParser.parseMessage(emailBody);
+        System.assertEquals('List index out of bounds: 2', result);
+    }    
+
+    @isTest
+    public static void testParseFileName() {
+        String result = ExceptionEmailParser.parseFileName(emailBody);
+        System.assertEquals('Trigger.ContactEx', result);
+    }
+
+    @isTest
+    public static void testParseContext() {
+        String result = ExceptionEmailParser.parseContext(emailBody);
+        System.assertEquals('ContactEx: execution of AfterInsert', result);
+    }
+
+    @isTest
+    public static void testParseLine() {
+        Integer result = ExceptionEmailParser.parseLine(emailBody);
+        System.assertEquals(3, result);
+    }
+
+    @isTest
+    public static void testParseColumn() {
+        Integer result = ExceptionEmailParser.parseColumn(emailBody);
+        System.assertEquals(1, result);
+    }
+}
diff --git a/force-app/main/default/tests/ExceptionEmailParserTest.cls-meta.xml b/force-app/main/default/tests/ExceptionEmailParserTest.cls-meta.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ApexClass xmlns="urn:metadata.tooling.soap.sforce.com" fqn="ExceptionEmailParserTest">
+    <apiVersion>45.0</apiVersion>
+    <status>Active</status>
+</ApexClass>