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import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import * as Statements from "../abap/2_statements/statements";
import * as Expressions from "../abap/2_statements/expressions";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
export class RFCErrorHandlingConf extends BasicRuleConfig {
}
export class RFCErrorHandling extends ABAPRule {
private conf = new RFCErrorHandlingConf();
public getMetadata(): IRuleMetadata {
return {
key: "rfc_error_handling",
title: "RFC error handling",
tags: [RuleTag.SingleFile],
shortDescription: `Checks that exceptions 'system_failure' and 'communication_failure' are handled in RFC calls`,
extendedInformation: `RESOURCE_FAILURE is also required for asynchronous calls with DESTINATION IN GROUP.
https://help.sap.com/doc/abapdocu_latest_index_htm/latest/en-US/abenrfc_exception.html`,
badExample: `CALL FUNCTION 'ZRFC'
DESTINATION lv_rfc.`,
goodExample: `CALL FUNCTION 'ZRFC'
DESTINATION lv_rfc
EXCEPTIONS
system_failure = 1 MESSAGE msg
communication_failure = 2 MESSAGE msg
OTHERS = 3.`,
};
}
private getMessage(requireResourceFailure: boolean): string {
return "RFC error handling: At least one unhandled exception from SYSTEM_FAILURE, COMMUNICATION_FAILURE"
+ (requireResourceFailure ? ", RESOURCE_FAILURE" : "");
}
public getConfig() {
return this.conf;
}
public setConfig(conf: RFCErrorHandlingConf) {
this.conf = conf;
}
public runParsed(file: ABAPFile) {
const output: Issue[] = [];
for (const stat of file.getStatements()) {
const token = stat.getFirstToken();
if (!(stat.get() instanceof Statements.CallFunction)) {
continue;
}
const destination = stat.findFirstExpression(Expressions.Destination);
if (destination === undefined) {
continue;
}
const requireResourceFailure = stat.findDirectTokenByText("STARTING") !== undefined
&& destination.findDirectTokenByText("GROUP") !== undefined;
const list = stat.findFirstExpression(Expressions.ParameterListExceptions);
if (list === undefined) {
const issue = Issue.atToken(file, token, this.getMessage(requireResourceFailure), this.getMetadata().key, this.conf.severity);
output.push(issue);
continue;
}
const parameters = list.findAllExpressions(Expressions.ParameterName);
const names: string[] = [];
for (const par of parameters) {
names.push(par.getFirstToken().getStr().toUpperCase());
}
if (names.indexOf("SYSTEM_FAILURE") < 0
|| names.indexOf("COMMUNICATION_FAILURE") < 0
|| (requireResourceFailure && names.indexOf("RESOURCE_FAILURE") < 0)) {
const issue = Issue.atToken(file, token, this.getMessage(requireResourceFailure), this.getMetadata().key, this.conf.severity);
output.push(issue);
continue;
}
}
return output;
}
}
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