feat: with base interface
Signed-off-by: kjuulh <contact@kjuulh.io>
This commit is contained in:
parent
ee5b85baa1
commit
c6b903fa58
GPG Key ID:
9AA7BC13CE474394
129
Cargo.lock
generated
129
Cargo.lock
generated
@ -23,6 +23,17 @@ version = "1.0.75"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
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[[package]]
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name = "async-trait"
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version = "0.1.73"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bc00ceb34980c03614e35a3a4e218276a0a824e911d07651cd0d858a51e8c0f0"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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@ -76,8 +87,11 @@ name = "crunch"
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version = "0.1.0"
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dependencies = [
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"anyhow",
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"async-trait",
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"thiserror",
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"tokio",
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"tracing",
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"tracing-subscriber",
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]
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[[package]]
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@ -92,6 +106,12 @@ version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
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[[package]]
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name = "lazy_static"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]]
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name = "libc"
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version = "0.2.148"
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@ -140,6 +160,16 @@ dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "nu-ansi-term"
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version = "0.46.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
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dependencies = [
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"overload",
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"winapi",
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]
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[[package]]
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name = "num_cpus"
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version = "1.16.0"
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@ -165,6 +195,12 @@ version = "1.18.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
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[[package]]
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name = "overload"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
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[[package]]
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name = "parking_lot"
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version = "0.12.1"
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@ -233,6 +269,15 @@ version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
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[[package]]
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name = "sharded-slab"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "900fba806f70c630b0a382d0d825e17a0f19fcd059a2ade1ff237bcddf446b31"
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dependencies = [
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"lazy_static",
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]
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[[package]]
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name = "signal-hook-registry"
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version = "1.4.1"
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@ -269,6 +314,36 @@ dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "thiserror"
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version = "1.0.48"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9d6d7a740b8a666a7e828dd00da9c0dc290dff53154ea77ac109281de90589b7"
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dependencies = [
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"thiserror-impl",
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]
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[[package]]
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name = "thiserror-impl"
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version = "1.0.48"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "49922ecae66cc8a249b77e68d1d0623c1b2c514f0060c27cdc68bd62a1219d35"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "thread_local"
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version = "1.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3fdd6f064ccff2d6567adcb3873ca630700f00b5ad3f060c25b5dcfd9a4ce152"
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dependencies = [
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"cfg-if",
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"once_cell",
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]
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[[package]]
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name = "tokio"
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version = "1.32.0"
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@ -330,6 +405,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0955b8137a1df6f1a2e9a37d8a6656291ff0297c1a97c24e0d8425fe2312f79a"
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dependencies = [
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"once_cell",
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"valuable",
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]
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[[package]]
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name = "tracing-log"
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version = "0.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "78ddad33d2d10b1ed7eb9d1f518a5674713876e97e5bb9b7345a7984fbb4f922"
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dependencies = [
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"lazy_static",
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"log",
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"tracing-core",
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]
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[[package]]
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name = "tracing-subscriber"
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version = "0.3.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "30a651bc37f915e81f087d86e62a18eec5f79550c7faff886f7090b4ea757c77"
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dependencies = [
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"nu-ansi-term",
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"sharded-slab",
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"smallvec",
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"thread_local",
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"tracing-core",
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"tracing-log",
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]
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[[package]]
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@ -338,12 +439,40 @@ version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
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[[package]]
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name = "valuable"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
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[[package]]
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name = "wasi"
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version = "0.11.0+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
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[[package]]
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name = "winapi"
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version = "0.3.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
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dependencies = [
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"winapi-i686-pc-windows-gnu",
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"winapi-x86_64-pc-windows-gnu",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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[[package]]
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name = "windows-sys"
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version = "0.48.0"
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@ -8,3 +8,6 @@ crunch = { path = "crates/crunch" }
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anyhow = { version = "1.0.71" }
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tokio = { version = "1", features = ["full"] }
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tracing = { version = "0.1", features = ["log"] }
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tracing-subscriber = "0.3.17"
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thiserror = {version = "1.0.48"}
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async-trait = "0.1.73"
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@ -7,3 +7,8 @@ edition = "2021"
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anyhow.workspace = true
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tracing.workspace = true
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tokio.workspace = true
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thiserror.workspace = true
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async-trait.workspace = true
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[dev-dependencies]
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tracing-subscriber.workspace = true
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47
crates/crunch/examples/basic.rs
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47
crates/crunch/examples/basic.rs
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@ -0,0 +1,47 @@
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use crunch::{Deserializer, Event, EventInfo, Persistence, Publisher, Serializer};
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struct SomeEvent {
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name: String,
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}
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impl Serializer for SomeEvent {
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fn serialize(&self) -> Result<Vec<u8>, crunch::SerializeError> {
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Ok(b"field=name".to_vec())
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}
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}
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impl Deserializer for SomeEvent {
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fn deserialize(raw: Vec<u8>) -> Result<Self, crunch::DeserializeError>
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where
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Self: Sized,
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{
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Ok(Self {
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name: "something".into(),
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})
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}
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}
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impl Event for SomeEvent {
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fn event_info(&self) -> EventInfo {
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EventInfo {
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domain: "some-domain",
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entity_type: "some-entity",
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}
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}
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}
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#[tokio::main]
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async fn main() -> anyhow::Result<()> {
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tracing_subscriber::fmt::init();
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let in_memory = Persistence::in_memory();
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let publisher = Publisher::new(in_memory);
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publisher
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.publish(SomeEvent {
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name: "something".into(),
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})
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.await?;
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Ok(())
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}
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@ -1 +1,146 @@
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mod traits {
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use std::fmt::Display;
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use async_trait::async_trait;
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use crate::{DeserializeError, SerializeError};
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#[async_trait]
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pub trait Persistence {
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async fn insert(&self, event_info: &EventInfo, content: Vec<u8>) -> anyhow::Result<()>;
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}
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pub trait Serializer {
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fn serialize(&self) -> Result<Vec<u8>, SerializeError>;
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}
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pub trait Deserializer {
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fn deserialize(raw: Vec<u8>) -> Result<Self, DeserializeError>
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where
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Self: Sized;
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}
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#[derive(Debug, Clone, Copy)]
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pub struct EventInfo {
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pub domain: &'static str,
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pub entity_type: &'static str,
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}
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impl Display for EventInfo {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.write_str(&format!(
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"domain: {}, entity_type: {}",
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self.domain, self.entity_type
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))
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}
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}
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pub trait Event: Serializer + Deserializer {
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fn event_info(&self) -> EventInfo;
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}
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}
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mod impls {
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use std::{ops::Deref, sync::Arc};
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use async_trait::async_trait;
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use crate::{traits, EventInfo};
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pub struct InMemoryPersistence {}
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#[async_trait]
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impl traits::Persistence for InMemoryPersistence {
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async fn insert(&self, event_info: &EventInfo, content: Vec<u8>) -> anyhow::Result<()> {
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tracing::info!(
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event_info = event_info.to_string(),
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content_len = content.len(),
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"inserted event"
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);
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Ok(())
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}
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}
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pub struct Persistence(Arc<dyn traits::Persistence + Send + Sync + 'static>);
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impl Persistence {
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pub fn in_memory() -> Self {
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Self(Arc::new(InMemoryPersistence {}))
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}
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}
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impl Deref for Persistence {
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type Target = Arc<dyn traits::Persistence + Send + Sync + 'static>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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}
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mod errors {
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use thiserror::Error;
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#[derive(Error, Debug)]
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pub enum SerializeError {
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#[error("failed to serialize")]
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FailedToSerialize(anyhow::Error),
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}
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#[derive(Error, Debug)]
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pub enum DeserializeError {
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#[error("failed to serialize")]
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FailedToDeserialize(anyhow::Error),
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}
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#[derive(Error, Debug)]
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pub enum PublishError {
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#[error("failed to serialize")]
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SerializeError(#[source] SerializeError),
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#[error("failed to commit to database")]
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DbError(#[source] anyhow::Error),
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#[error("transaction failed")]
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DbTxError(#[source] anyhow::Error),
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#[error("failed to connect to database")]
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ConnectionError(#[source] anyhow::Error),
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}
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}
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pub use errors::*;
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pub use impls::Persistence;
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pub use traits::{Deserializer, Event, EventInfo, Serializer};
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pub struct Publisher {
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persistence: Persistence,
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}
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#[allow(dead_code)]
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impl Publisher {
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pub fn new(persistence: Persistence) -> Self {
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Self { persistence }
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}
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pub async fn publish<T>(&self, event: T) -> Result<(), PublishError>
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where
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T: Event,
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{
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let content = event.serialize().map_err(PublishError::SerializeError)?;
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self.persistence
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.insert(&event.event_info(), content)
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.await
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.map_err(PublishError::DbError)?;
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Ok(())
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}
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pub async fn publish_tx<T>(&self, event: T) -> Result<(), PublishError>
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where
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T: Event,
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{
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// TODO: add transaction support later
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self.publish(event).await
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}
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}
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