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WalkthroughReplaced reflection-based native transport loading with explicit availability checks ( Changes
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
154-196: Critical: Compilation failure due to missing helper methods.The pipeline is failing because
ioUringAvailable(),epollAvailable(), andkqueueAvailable()methods were removed but are still referenced instartAsync(). The refactoring was applied toinitGroups()but not here.Apply this diff to use the direct availability checks consistent with
initGroups():case IO_URING: - if (ioUringAvailable()) { + if (IoUring.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.uring.IoUringServerSocketChannel"); } else { channelClass = fallback("IO_URING unavailable"); } break; case EPOLL: - if (epollAvailable()) { + if (Epoll.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.epoll.EpollServerSocketChannel"); } else { channelClass = fallback("EPOLL unavailable"); } break; case KQUEUE: - if (kqueueAvailable()) { + if (KQueue.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.kqueue.KQueueServerSocketChannel"); } else { channelClass = fallback("KQUEUE unavailable"); } break; case NIO: channelClass = NioServerSocketChannel.class; break; case AUTO: default: - if (ioUringAvailable()) { + if (IoUring.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.uring.IoUringServerSocketChannel"); log.info("AUTO selected IO_URING transport"); - } else if (epollAvailable()) { + } else if (Epoll.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.epoll.EpollServerSocketChannel"); log.info("AUTO selected EPOLL transport"); - } else if (kqueueAvailable()) { + } else if (KQueue.isAvailable()) { channelClass = loadChannelClass("io.netty.channel.kqueue.KQueueServerSocketChannel"); log.info("AUTO selected KQUEUE transport"); } else { channelClass = NioServerSocketChannel.class; log.info("AUTO selected NIO transport"); } }
🧹 Nitpick comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
246-249: Unused methodfallbackFactory.This method is defined but never called anywhere in the file. It appears to be leftover from the refactoring. Consider removing it to reduce dead code.
- private IoHandlerFactory fallbackFactory(String msg) { - log.warn("{} → Falling back to NIO IoHandler.", msg); - return NioIoHandler.newFactory(); - } -
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java(2 hunks)
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java
[error] 155-155: Cannot find symbol: method ioUringAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
[error] 163-163: Cannot find symbol: method epollAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
[error] 171-171: Cannot find symbol: method kqueueAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
[error] 184-184: Cannot find symbol: method ioUringAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
[error] 187-187: Cannot find symbol: method epollAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
[error] 190-190: Cannot find symbol: method kqueueAvailable() in class SocketIOServer. Command: mvn --batch-mode --errors --fail-at-end verify
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🔇 Additional comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
277-315: Approve the native transport refactoring approach ininitGroups.The switch from reflection-based detection to explicit
isAvailable()checks is a sound improvement—cleaner, more maintainable, and avoids reflection overhead. The priority order (IoUring → Epoll → KQueue → NIO) in the AUTO case is appropriate.
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
220-239: Remove unused helper methods.The methods
loadChannelClass,fallback, andfallbackFactoryare no longer used after replacing reflection-based loading with explicit availability checks. They should be removed to keep the codebase clean.- private Class<? extends ServerChannel> loadChannelClass(String name) { - try { - @SuppressWarnings("unchecked") - Class<? extends ServerChannel> c = (Class<? extends ServerChannel>) Class.forName(name); - return c; - } catch (Exception ignored) { - log.warn("Unable to load native channel {}. Using NIO.", name); - return NioServerSocketChannel.class; - } - } - - private Class<? extends ServerChannel> fallback(String msg) { - log.warn("{} → Falling back to NIO.", msg); - return NioServerSocketChannel.class; - } - - private IoHandlerFactory fallbackFactory(String msg) { - log.warn("{} → Falling back to NIO IoHandler.", msg); - return NioIoHandler.newFactory(); - } -
♻️ Duplicate comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
298-300: Critical: Default case incorrectly uses IoUringIoHandler.This issue was flagged in a previous review and remains unresolved. The
defaultcase assignsIoUringIoHandler.newFactory(), which will throw an exception at runtime if IoUring is unavailable. This contradicts the safe NIO initialization at line 269.Apply this diff to fix:
break; default: - handler = IoUringIoHandler.newFactory(); + handler = NioIoHandler.newFactory(); break;
🧹 Nitpick comments (2)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (2)
156-170: Silent fallback when explicitly requested transport is unavailable.When a user explicitly configures
IO_URING,EPOLL, orKQUEUEtransport, but the native transport is unavailable, the code silently falls back to NIO without any warning. This could lead to unexpected behavior where the user believes they're running with native transport.Consider logging a warning when the explicitly requested transport is unavailable:
case IO_URING: if (IoUring.isAvailable()) { channelClass = IoUringServerSocketChannel.class; + } else { + log.warn("IO_URING transport requested but unavailable, falling back to NIO"); } break; case EPOLL: if (Epoll.isAvailable()) { channelClass = EpollServerSocketChannel.class; + } else { + log.warn("EPOLL transport requested but unavailable, falling back to NIO"); } break; case KQUEUE: if (KQueue.isAvailable()) { channelClass = KQueueServerSocketChannel.class; + } else { + log.warn("KQUEUE transport requested but unavailable, falling back to NIO"); } break;
272-286: Add warning logs for unavailable explicit transport requests (consistency with channel selection).Similar to the channel selection logic in
startAsync(), consider adding warning logs when explicitly requested transports are unavailable, for consistency and to help users diagnose configuration issues.
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🔇 Additional comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
26-28: LGTM!The imports are correctly aligned with the new explicit availability check approach, importing both the native channel classes and their corresponding availability check utilities.
Also applies to: 53-60
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
219-238: Remove unused legacy helper methods.Verification confirms these three helper methods are unused throughout the codebase—only their definitions appear, with no calls to any of them. They are safe to remove:
- private Class<? extends ServerChannel> loadChannelClass(String name) { - try { - @SuppressWarnings("unchecked") - Class<? extends ServerChannel> c = (Class<? extends ServerChannel>) Class.forName(name); - return c; - } catch (Exception ignored) { - log.warn("Unable to load native channel {}. Using NIO.", name); - return NioServerSocketChannel.class; - } - } - - private Class<? extends ServerChannel> fallback(String msg) { - log.warn("{} → Falling back to NIO.", msg); - return NioServerSocketChannel.class; - } - - private IoHandlerFactory fallbackFactory(String msg) { - log.warn("{} → Falling back to NIO IoHandler.", msg); - return NioIoHandler.newFactory(); - } -
♻️ Duplicate comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
297-299: Critical: Default case still incorrectly uses IoUringIoHandler.Despite being marked as addressed in a previous review, the
defaultcase still unconditionally assignsIoUringIoHandler.newFactory(), which will throw an exception at runtime if IoUring is not available. This must fall back toNioIoHandlerto be safe, consistent with line 268's initialization.Apply this diff:
break; default: - handler = IoUringIoHandler.newFactory(); + handler = NioIoHandler.newFactory(); break;
🧹 Nitpick comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
286-295: Add logging to AUTO case for consistency.The AUTO case in
initGroups()lacks the logging present in the corresponding AUTO case instartAsync(). For consistency and better observability, add logging to indicate which IoHandler is selected.Apply this diff:
case AUTO: if (IoUring.isAvailable()) { handler = IoUringIoHandler.newFactory(); + log.info("AUTO selected IO_URING IoHandler"); } else if (Epoll.isAvailable()) { handler = EpollIoHandler.newFactory(); + log.info("AUTO selected EPOLL IoHandler"); } else if (KQueue.isAvailable()) { handler = KQueueIoHandler.newFactory(); + log.info("AUTO selected KQUEUE IoHandler"); } else { handler = NioIoHandler.newFactory(); + log.info("AUTO selected NIO IoHandler"); } break;
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (2)
50-60: LGTM! Imports correctly added for native transport support.The new imports for Epoll, KQueue, and IoUring transports are necessary for the explicit availability checks replacing reflection-based loading.
170-183: LGTM! AUTO transport selection with proper logging.The AUTO case correctly prioritizes native transports (IoUring → Epoll → KQueue) with appropriate logging for each selection, and falls back to NIO when no native transport is available.
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java
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♻️ Duplicate comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
289-292: Critical: Default case still incorrectly uses IoUringIoHandler.The
defaultcase unconditionally assignsIoUringIoHandler.newFactory(), which will throw an exception at runtime if IoUring is not available. This should fall back toNioIoHandlerto be safe and consistent with line 253's initialization and the channel selection default.Apply this diff:
- default: - handler = IoUringIoHandler.newFactory(); - log.info("default transportType {} is selected", handler); - break; + default: + handler = NioIoHandler.newFactory(); + log.info("NIO IoHandler selected as default"); + break;
🧹 Nitpick comments (1)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (1)
277-288: Improve logging consistency with channel selection.The AUTO case logs the handler object, which doesn't clearly indicate which transport was selected. The channel selection AUTO logic (lines 179, 182, 185, 187) explicitly names each transport. Consider improving this log message for consistency.
Apply this diff to match the channel selection style:
case AUTO: if (IoUring.isAvailable()) { handler = IoUringIoHandler.newFactory(); + log.info("AUTO selected IO_URING IoHandler"); } else if (Epoll.isAvailable()) { handler = EpollIoHandler.newFactory(); + log.info("AUTO selected EPOLL IoHandler"); } else if (KQueue.isAvailable()) { handler = KQueueIoHandler.newFactory(); + log.info("AUTO selected KQUEUE IoHandler"); } else { handler = NioIoHandler.newFactory(); + log.info("AUTO selected NIO IoHandler"); } - log.info(" AUTO selected transportType {}", handler); break;
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netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java(3 hunks)
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🔇 Additional comments (2)
netty-socketio-core/src/main/java/com/socketio4j/socketio/SocketIOServer.java (2)
50-60: LGTM! Native transport imports added correctly.The explicit imports for Epoll, KQueue, and IoUring transport implementations replace the previous reflection-based approach and are properly used throughout the channel and handler selection logic.
152-192: LGTM! Channel selection logic is robust and well-logged.The explicit availability checks with fallback to NIO are correctly implemented. The logging when native transports are unavailable addresses the concerns from previous reviews and provides good visibility into transport selection.
Description
Removing reflection as isAvailable present in all OS platforms
Type of Change
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Testing
mvn testChecklist
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