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added optional key prefix to memcache backend

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This commit is contained in:
Walter Oggioni
2025-06-13 17:45:15 +08:00
parent 0e92998f16
commit fd0bd1ee5f
10 changed files with 51 additions and 41 deletions
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2
rbcs-server-memcache/src/main/kotlin/net/woggioni/rbcs/server/memcache/MemcacheCacheConfiguration.kt
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@@ -20,6 +20,7 @@ import net.woggioni.rbcs.server.memcache.client.MemcacheClient
data class MemcacheCacheConfiguration(
val servers: List<Server>,
val maxAge: Duration = Duration.ofDays(1),
val keyPrefix : String? = null,
val digestAlgorithm: String? = null,
val compressionMode: CompressionMode? = null,
val compressionLevel: Int,
@@ -60,6 +61,7 @@ data class MemcacheCacheConfiguration(
socketChannelFactory,
connectionPoolMap
),
keyPrefix,
digestAlgorithm,
compressionMode != null,
compressionLevel,

5
rbcs-server-memcache/src/main/kotlin/net/woggioni/rbcs/server/memcache/MemcacheCacheHandler.kt
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@@ -53,6 +53,7 @@ import net.woggioni.rbcs.server.memcache.client.MemcacheResponseHandler
class MemcacheCacheHandler(
private val client: MemcacheClient,
private val keyPrefix: String?,
private val digestAlgorithm: String?,
private val compressionEnabled: Boolean,
private val compressionLevel: Int,
@@ -248,7 +249,7 @@ class MemcacheCacheHandler(
"Fetching ${msg.key} from memcache"
}
val key = ctx.alloc().buffer().also {
it.writeBytes(processCacheKey(msg.key, digestAlgorithm))
it.writeBytes(processCacheKey(msg.key, keyPrefix, digestAlgorithm))
}
val responseHandler = object : MemcacheResponseHandler {
override fun responseReceived(response: BinaryMemcacheResponse) {
@@ -309,7 +310,7 @@ class MemcacheCacheHandler(
private fun handlePutRequest(ctx: ChannelHandlerContext, msg: CachePutRequest) {
val key = ctx.alloc().buffer().also {
it.writeBytes(processCacheKey(msg.key, digestAlgorithm))
it.writeBytes(processCacheKey(msg.key, keyPrefix, digestAlgorithm))
}
val responseHandler = object : MemcacheResponseHandler {
override fun responseReceived(response: BinaryMemcacheResponse) {

7
rbcs-server-memcache/src/main/kotlin/net/woggioni/rbcs/server/memcache/MemcacheCacheProvider.kt
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@@ -38,6 +38,7 @@ class MemcacheCacheProvider : CacheProvider<MemcacheCacheConfiguration> {
else -> MemcacheCacheConfiguration.CompressionMode.DEFLATE
}
}
val keyPrefix = el.renderAttribute("key-prefix")
val digestAlgorithm = el.renderAttribute("digest")
for (child in el.asIterable()) {
when (child.nodeName) {
@@ -54,10 +55,10 @@ class MemcacheCacheProvider : CacheProvider<MemcacheCacheConfiguration> {
}
}
}
return MemcacheCacheConfiguration(
servers,
maxAge,
keyPrefix,
digestAlgorithm,
compressionMode,
compressionLevel
@@ -78,8 +79,12 @@ class MemcacheCacheProvider : CacheProvider<MemcacheCacheConfiguration> {
}
attr("max-connections", server.maxConnections.toString())
}
}
attr("max-age", maxAge.toString())
keyPrefix?.let {
attr("key-prefix", it)
}
digestAlgorithm?.let { digestAlgorithm ->
attr("digest", digestAlgorithm)
}

8
rbcs-server-memcache/src/main/resources/net/woggioni/rbcs/server/memcache/schema/rbcs-memcache.xsd
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@@ -21,6 +21,14 @@
</xs:sequence>
<xs:attribute name="max-age" type="xs:duration" default="P1D"/>
<xs:attribute name="chunk-size" type="rbcs:byteSizeType" default="0x10000"/>
<xs:attribute name="key-prefix" type="xs:string" use="optional">
<xs:annotation>
<xs:documentation>
Prepend this string to all the keys inserted in memcache,
useful in case the caching backend is shared with other applications
</xs:documentation>
</xs:annotation>
</xs:attribute>
<xs:attribute name="digest" type="xs:token"/>
<xs:attribute name="compression-mode" type="rbcs-memcache:compressionType"/>
<xs:attribute name="compression-level" type="rbcs:compressionLevelType" default="-1"/>