Marc Mintel
5397309103
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{"version":3,"file":"RandomIdGenerator.js","sourceRoot":"","sources":["../../../../src/platform/browser/RandomIdGenerator.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;GAcG;;;AAIH,MAAM,cAAc,GAAG,EAAE,CAAC;AAC1B,MAAM,aAAa,GAAG,CAAC,CAAC;AAExB,MAAM,YAAY,GAAG,IAAI,UAAU,CAAC,cAAc,CAAC,CAAC;AACpD,MAAM,WAAW,GAAG,IAAI,UAAU,CAAC,aAAa,CAAC,CAAC;AAElD,6DAA6D;AAC7D,MAAM,GAAG,GAAa,KAAK,CAAC,IAAI,CAAC,EAAE,MAAM,EAAE,GAAG,EAAE,EAAE,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE,CACzD,CAAC,CAAC,QAAQ,CAAC,EAAE,CAAC,CAAC,QAAQ,CAAC,CAAC,EAAE,GAAG,CAAC,CAChC,CAAC;AAEF;;;GAGG;AACH,SAAS,UAAU,CAAC,GAAe;IACjC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;QACnC,GAAG,CAAC,CAAC,CAAC,GAAG,CAAC,IAAI,CAAC,MAAM,EAAE,GAAG,GAAG,CAAC,KAAK,CAAC,CAAC;KACtC;IACD,kBAAkB;IAClB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;QACnC,IAAI,GAAG,CAAC,CAAC,CAAC,GAAG,CAAC;YAAE,OAAO;KACxB;IACD,GAAG,CAAC,GAAG,CAAC,MAAM,GAAG,CAAC,CAAC,GAAG,CAAC,CAAC;AAC1B,CAAC;AAED,SAAS,KAAK,CAAC,GAAe;IAC5B,IAAI,GAAG,GAAG,EAAE,CAAC;IACb,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;QACnC,GAAG,IAAI,GAAG,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC;KACpB;IACD,OAAO,GAAG,CAAC;AACb,CAAC;AAED,MAAa,iBAAiB;IAC5B;;;OAGG;IACH,eAAe;QACb,UAAU,CAAC,YAAY,CAAC,CAAC;QACzB,OAAO,KAAK,CAAC,YAAY,CAAC,CAAC;IAC7B,CAAC;IAED;;;OAGG;IACH,cAAc;QACZ,UAAU,CAAC,WAAW,CAAC,CAAC;QACxB,OAAO,KAAK,CAAC,WAAW,CAAC,CAAC;IAC5B,CAAC;CACF;AAlBD,8CAkBC","sourcesContent":["/*\n * Copyright The OpenTelemetry Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * https://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { IdGenerator } from '../../IdGenerator';\n\nconst TRACE_ID_BYTES = 16;\nconst SPAN_ID_BYTES = 8;\n\nconst TRACE_BUFFER = new Uint8Array(TRACE_ID_BYTES);\nconst SPAN_BUFFER = new Uint8Array(SPAN_ID_BYTES);\n\n// Byte-to-hex lookup is faster than toString(16) in browsers\nconst HEX: string[] = Array.from({ length: 256 }, (_, i) =>\n i.toString(16).padStart(2, '0')\n);\n\n/**\n * Fills buffer with random bytes, ensuring at least one is non-zero\n * per W3C Trace Context spec.\n */\nfunction randomFill(buf: Uint8Array): void {\n for (let i = 0; i < buf.length; i++) {\n buf[i] = (Math.random() * 256) >>> 0;\n }\n // Ensure non-zero\n for (let i = 0; i < buf.length; i++) {\n if (buf[i] > 0) return;\n }\n buf[buf.length - 1] = 1;\n}\n\nfunction toHex(buf: Uint8Array): string {\n let hex = '';\n for (let i = 0; i < buf.length; i++) {\n hex += HEX[buf[i]];\n }\n return hex;\n}\n\nexport class RandomIdGenerator implements IdGenerator {\n /**\n * Returns a random 16-byte trace ID formatted/encoded as a 32 lowercase hex\n * characters corresponding to 128 bits.\n */\n generateTraceId(): string {\n randomFill(TRACE_BUFFER);\n return toHex(TRACE_BUFFER);\n }\n\n /**\n * Returns a random 8-byte span ID formatted/encoded as a 16 lowercase hex\n * characters corresponding to 64 bits.\n */\n generateSpanId(): string {\n randomFill(SPAN_BUFFER);\n return toHex(SPAN_BUFFER);\n }\n}\n"]} |