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Mini Shell
Mini Shell
'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("@opencensus/core");
const shimmer = require("shimmer");
const semver = require("semver");
class IORedisPlugin extends core_1.BasePlugin {
constructor(moduleName) {
super(moduleName);
}
applyPatch() {
this.logger.debug('Patched redis');
if (!semver.satisfies(this.version, '>=2.0.0 <5.0.0')) {
this.logger.info('disabling ioredis plugin because version isnt supported');
return this.moduleExports;
}
if (this.moduleExports) {
this.logger.debug('patching ioredis.prototype.sendCommand');
shimmer.wrap(this.moduleExports.prototype, 'sendCommand', this.getPatchSendCommand());
}
return this.moduleExports;
}
applyUnpatch() {
if (!semver.satisfies(this.version, '>=2.0.0 <5.0.0'))
return;
shimmer.unwrap(this.moduleExports.prototype, 'sendCommand');
}
getPatchSendCommand() {
const plugin = this;
const addArguments = typeof this.options === 'object'
&& this.options.detailedCommands === true;
return function internalSendCommandWrap(original) {
return function internal_send_command_trace(command) {
if (!plugin.tracer.currentRootSpan) {
return original.apply(this, arguments);
}
const span = plugin.tracer.startChildSpan(`redis-${command.name}`, core_1.SpanKind.CLIENT);
if (span === null)
return original.apply(this, arguments);
span.addAttribute('command', command.name);
if (addArguments) {
span.addAttribute('arguments', JSON.stringify(command.args));
}
if (typeof command.reject === 'function') {
command.reject = plugin.tracer.wrap(command.reject);
}
if (typeof command.resolve === 'function') {
command.resolve = plugin.tracer.wrap(command.resolve);
}
if (typeof command.callback === 'function') {
command.callback = plugin.patchEnd(span, command.callback);
}
if (typeof command.promise === 'object') {
const patchedEnd = function (err) {
if (plugin.options.detailedCommands === true && err instanceof Error) {
span.addAttribute('error', err.message);
}
if (span.ended === false) {
span.end();
}
};
if (typeof command.promise.finally === 'function') {
command.promise.finally(patchedEnd);
}
else if (typeof command.promise.then === 'function') {
command.promise.then(patchedEnd).catch(patchedEnd);
}
}
return original.apply(this, arguments);
};
};
}
patchEnd(span, resultHandler) {
const plugin = this;
const patchedEnd = function (err) {
if (plugin.options.detailedCommands === true && err instanceof Error) {
span.addAttribute('error', err.message);
}
if (span.ended === false) {
span.end();
}
return resultHandler.apply(this, arguments);
};
return this.tracer.wrap(patchedEnd);
}
}
exports.IORedisPlugin = IORedisPlugin;
const plugin = new IORedisPlugin('ioredis');
exports.plugin = plugin;
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Zerion Mini Shell 1.0