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import { AbstractLogger } from "./AbstractLogger";
import { debug } from "debug";
/**
* Performs logging of the events in TypeORM via debug library.
*/
export class DebugLogger extends AbstractLogger {
constructor() {
super(...arguments);
/**
* Object with all debug logger.
*/
this.logger = {
log: debug("typeorm:log"),
info: debug("typeorm:info"),
warn: debug("typeorm:warn"),
error: debug("typeorm:error"),
query: debug("typeorm:query:log"),
"query-error": debug("typeorm:query:error"),
"query-slow": debug("typeorm:query:slow"),
"schema-build": debug("typeorm:schema"),
migration: debug("typeorm:migration"),
};
}
/**
* Check is logging for level or message type is enabled.
*/
isLogEnabledFor(type) {
switch (type) {
case "query":
return this.logger["query"].enabled;
case "query-error":
return this.logger["query-error"].enabled;
case "query-slow":
return true;
case "schema":
case "schema-build":
return this.logger["schema-build"].enabled;
case "migration":
return this.logger["migration"].enabled;
case "log":
return this.logger["log"].enabled;
case "info":
return this.logger["info"].enabled;
case "warn":
return this.logger["warn"].enabled;
default:
return false;
}
}
/**
* Write log to specific output.
*/
writeLog(level, logMessage, queryRunner) {
const messages = this.prepareLogMessages(logMessage, {
appendParameterAsComment: false,
});
for (let message of messages) {
const messageTypeOrLevel = message.type ?? level;
if (messageTypeOrLevel in this.logger) {
if (message.prefix) {
this.logger[messageTypeOrLevel](message.prefix, message.message);
}
else {
this.logger[messageTypeOrLevel](message.message);
}
if (message.parameters && message.parameters.length) {
this.logger[messageTypeOrLevel]("parameters:", message.parameters);
}
}
}
}
}
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