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221 changes: 221 additions & 0 deletions
221
exporters/otlp/include/opentelemetry/exporters/otlp/otlp_environment.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,221 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
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| #pragma once | ||
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| #include <algorithm> | ||
| #include <chrono> | ||
| #include <map> | ||
| #include <string> | ||
| #include <unordered_set> | ||
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| #include "opentelemetry/nostd/string_view.h" | ||
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| #include "opentelemetry/sdk/common/attribute_utils.h" | ||
| #include "opentelemetry/sdk/common/env_variables.h" | ||
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| OPENTELEMETRY_BEGIN_NAMESPACE | ||
| namespace exporter | ||
| { | ||
| namespace otlp | ||
| { | ||
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| inline const std::string GetOtlpDefaultGrpcEndpoint() | ||
| { | ||
| constexpr char kOtlpTracesEndpointEnv[] = "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT"; | ||
| constexpr char kOtlpEndpointEnv[] = "OTEL_EXPORTER_OTLP_ENDPOINT"; | ||
| constexpr char kOtlpEndpointDefault[] = "http://localhost:4317"; | ||
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| auto endpoint = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesEndpointEnv); | ||
| if (endpoint.empty()) | ||
| { | ||
| endpoint = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpEndpointEnv); | ||
| } | ||
| return endpoint.size() ? endpoint : kOtlpEndpointDefault; | ||
| } | ||
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| inline const std::string GetOtlpDefaultHttpEndpoint() | ||
| { | ||
| constexpr char kOtlpTracesEndpointEnv[] = "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT"; | ||
| constexpr char kOtlpEndpointEnv[] = "OTEL_EXPORTER_OTLP_ENDPOINT"; | ||
| constexpr char kOtlpEndpointDefault[] = "http://localhost:4317/v1/traces"; | ||
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| auto endpoint = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesEndpointEnv); | ||
| if (endpoint.empty()) | ||
| { | ||
| endpoint = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpEndpointEnv); | ||
| } | ||
| return endpoint.size() ? endpoint : kOtlpEndpointDefault; | ||
| } | ||
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| inline const bool GetOtlpDefaultIsSslEnable() | ||
| { | ||
| constexpr char kOtlpTracesIsSslEnableEnv[] = "OTEL_EXPORTER_OTLP_TRACES_SSL_ENABLE"; | ||
| constexpr char kOtlpIsSslEnableEnv[] = "OTEL_EXPORTER_OTLP_SSL_ENABLE"; | ||
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| auto ssl_enable = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesIsSslEnableEnv); | ||
| if (ssl_enable.empty()) | ||
| { | ||
| ssl_enable = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpIsSslEnableEnv); | ||
| } | ||
| if (ssl_enable == "True" || ssl_enable == "TRUE" || ssl_enable == "true" || ssl_enable == "1") | ||
| { | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
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| inline const std::string GetOtlpDefaultSslCertificatePath() | ||
| { | ||
| constexpr char kOtlpTracesSslCertificate[] = "OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE"; | ||
| constexpr char kOtlpSslCertificate[] = "OTEL_EXPORTER_OTLP_CERTIFICATE "; | ||
| auto ssl_cert_path = | ||
| opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesSslCertificate); | ||
| if (ssl_cert_path.empty()) | ||
| { | ||
| ssl_cert_path = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpSslCertificate); | ||
| } | ||
| return ssl_cert_path.size() ? ssl_cert_path : ""; | ||
| } | ||
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| inline const std::string GetOtlpDefaultSslCertificateString() | ||
| { | ||
| constexpr char kOtlpTracesSslCertificateString[] = "OTEL_EXPORTER_OTLP_CERTIFICATE_STRING"; | ||
| constexpr char kOtlpSslCertificateString[] = "OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE_STRING "; | ||
| auto ssl_cert = | ||
| opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesSslCertificateString); | ||
| if (ssl_cert.empty()) | ||
| { | ||
| ssl_cert = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpSslCertificateString); | ||
| } | ||
| return ssl_cert.size() ? ssl_cert : ""; | ||
| } | ||
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| inline const std::chrono::system_clock::duration GetOtlpTimeoutFromString(const char *input) | ||
| { | ||
| if (nullptr == input || 0 == *input) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::seconds{10}); | ||
| } | ||
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| std::chrono::system_clock::duration::rep result = 0; | ||
| // Skip spaces | ||
| for (; *input && (' ' == *input || '\t' == *input || '\r' == *input || '\n' == *input); ++input) | ||
| ; | ||
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| for (; *input && (*input >= '0' && *input <= '9'); ++input) | ||
| { | ||
| result = result * 10 + (*input - '0'); | ||
| } | ||
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| opentelemetry::nostd::string_view unit{input}; | ||
| if ("ns" == unit) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::nanoseconds{result}); | ||
| } | ||
| else if ("us" == unit) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::microseconds{result}); | ||
| } | ||
| else if ("ms" == unit) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::milliseconds{result}); | ||
| } | ||
| else if ("m" == unit) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::minutes{result}); | ||
| } | ||
| else if ("h" == unit) | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::hours{result}); | ||
| } | ||
| else | ||
| { | ||
| return std::chrono::duration_cast<std::chrono::system_clock::duration>( | ||
| std::chrono::seconds{result}); | ||
| } | ||
| } | ||
|
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| inline const std::chrono::system_clock::duration GetOtlpDefaultTimeout() | ||
| { | ||
| constexpr char kOtlpTracesTimeoutEnv[] = "OTEL_EXPORTER_OTLP_TRACES_TIMEOUT"; | ||
| constexpr char kOtlpTimeoutEnv[] = "OTEL_EXPORTER_OTLP_TIMEOUT"; | ||
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| auto timeout = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTracesTimeoutEnv); | ||
| if (timeout.empty()) | ||
| { | ||
| timeout = opentelemetry::sdk::common::GetEnvironmentVariable(kOtlpTimeoutEnv); | ||
| } | ||
| return GetOtlpTimeoutFromString(timeout.c_str()); | ||
| } | ||
|
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| struct cmp_ic | ||
| { | ||
| bool operator()(const std::string &s1, const std::string &s2) const | ||
| { | ||
| return std::lexicographical_compare( | ||
| s1.begin(), s1.end(), s2.begin(), s2.end(), | ||
| [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); | ||
| } | ||
| }; | ||
| using OtlpHeaders = std::multimap<std::string, std::string, cmp_ic>; | ||
|
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| inline void DumpOtlpHeaders(OtlpHeaders &output, | ||
| const char *env_var_name, | ||
| std::unordered_set<std::string> &remove_cache) | ||
| { | ||
| auto value = opentelemetry::sdk::common::GetEnvironmentVariable(env_var_name); | ||
| if (value.empty()) | ||
| { | ||
| return; | ||
| } | ||
|
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| opentelemetry::common::KeyValueStringTokenizer tokenizer{value}; | ||
| opentelemetry::nostd::string_view header_key; | ||
| opentelemetry::nostd::string_view header_value; | ||
| bool header_valid = true; | ||
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| while (tokenizer.next(header_valid, header_key, header_value)) | ||
| { | ||
| if (header_valid) | ||
| { | ||
| std::string key = static_cast<std::string>(header_key); | ||
| if (remove_cache.end() == remove_cache.find(key)) | ||
| { | ||
| remove_cache.insert(key); | ||
| auto range = output.equal_range(key); | ||
| if (range.first != range.second) | ||
| { | ||
| output.erase(range.first, range.second); | ||
| } | ||
| } | ||
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| output.emplace(std::make_pair(std::move(key), static_cast<std::string>(header_value))); | ||
| } | ||
| } | ||
| } | ||
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| inline OtlpHeaders GetOtlpDefaultHeaders() | ||
| { | ||
| constexpr char kOtlpTracesHeadersEnv[] = "OTEL_EXPORTER_OTLP_TRACES_HEADERS"; | ||
| constexpr char kOtlpHeadersEnv[] = "OTEL_EXPORTER_OTLP_HEADERS"; | ||
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| OtlpHeaders result; | ||
| std::unordered_set<std::string> trace_remove_cache; | ||
| DumpOtlpHeaders(result, kOtlpHeadersEnv, trace_remove_cache); | ||
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| trace_remove_cache.clear(); | ||
| DumpOtlpHeaders(result, kOtlpTracesHeadersEnv, trace_remove_cache); | ||
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| return result; | ||
| } | ||
|
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| } // namespace otlp | ||
| } // namespace exporter | ||
| OPENTELEMETRY_END_NAMESPACE |
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