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Fixes apache#492.
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// Licensed to the Apache Software Foundation (ASF) under one | ||
// or more contributor license agreements. See the NOTICE file | ||
// distributed with this work for additional information | ||
// regarding copyright ownership. The ASF licenses this file | ||
// to you under the Apache License, Version 2.0 (the | ||
// "License"); you may not use this file except in compliance | ||
// with the License. You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, | ||
// software distributed under the License is distributed on an | ||
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
// KIND, either express or implied. See the License for the | ||
// specific language governing permissions and limitations | ||
// under the License. | ||
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package flightsql | ||
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import ( | ||
"context" | ||
"io" | ||
"os" | ||
"time" | ||
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"golang.org/x/exp/maps" | ||
"golang.org/x/exp/slices" | ||
"golang.org/x/exp/slog" | ||
"google.golang.org/grpc" | ||
"google.golang.org/grpc/metadata" | ||
) | ||
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func nilLogger() *slog.Logger { | ||
h := slog.NewJSONHandler(os.Stderr, &slog.HandlerOptions{ | ||
AddSource: false, | ||
Level: slog.LevelError, | ||
}) | ||
return slog.New(h) | ||
} | ||
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func makeUnaryLoggingInterceptor(logger *slog.Logger) grpc.UnaryClientInterceptor { | ||
interceptor := func(ctx context.Context, method string, req, reply any, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error { | ||
start := time.Now() | ||
// Ignore errors | ||
outgoing, _ := metadata.FromOutgoingContext(ctx) | ||
err := invoker(ctx, method, req, reply, cc, opts...) | ||
if logger.Enabled(ctx, slog.LevelDebug) { | ||
logger.DebugContext(ctx, method, "target", cc.Target(), "duration", time.Since(start), "err", err, "metadata", outgoing) | ||
} else { | ||
keys := maps.Keys(outgoing) | ||
slices.Sort(keys) | ||
logger.InfoContext(ctx, method, "target", cc.Target(), "duration", time.Since(start), "err", err, "metadata", keys) | ||
} | ||
return err | ||
} | ||
return interceptor | ||
} | ||
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func makeStreamLoggingInterceptor(logger *slog.Logger) grpc.StreamClientInterceptor { | ||
interceptor := func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) { | ||
start := time.Now() | ||
// Ignore errors | ||
outgoing, _ := metadata.FromOutgoingContext(ctx) | ||
stream, err := streamer(ctx, desc, cc, method, opts...) | ||
if err != nil { | ||
logger.InfoContext(ctx, method, "target", cc.Target(), "duration", time.Since(start), "err", err) | ||
return stream, err | ||
} | ||
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return &loggedStream{ClientStream: stream, logger: logger, ctx: ctx, method: method, start: start, target: cc.Target(), outgoing: outgoing}, err | ||
} | ||
return interceptor | ||
} | ||
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type loggedStream struct { | ||
grpc.ClientStream | ||
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logger *slog.Logger | ||
ctx context.Context | ||
method string | ||
start time.Time | ||
target string | ||
outgoing metadata.MD | ||
} | ||
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func (stream *loggedStream) RecvMsg(m any) error { | ||
err := stream.ClientStream.RecvMsg(m) | ||
if err != nil { | ||
loggedErr := err | ||
if loggedErr == io.EOF { | ||
loggedErr = nil | ||
} | ||
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if stream.logger.Enabled(stream.ctx, slog.LevelDebug) { | ||
stream.logger.DebugContext(stream.ctx, stream.method, "target", stream.target, "duration", time.Since(stream.start), "err", loggedErr, "metadata", stream.outgoing) | ||
} else { | ||
keys := maps.Keys(stream.outgoing) | ||
slices.Sort(keys) | ||
stream.logger.InfoContext(stream.ctx, stream.method, "target", stream.target, "duration", time.Since(stream.start), "err", loggedErr, "metadata", keys) | ||
} | ||
} | ||
return err | ||
} |
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@@ -0,0 +1,30 @@ | ||
// Licensed to the Apache Software Foundation (ASF) under one | ||
// or more contributor license agreements. See the NOTICE file | ||
// distributed with this work for additional information | ||
// regarding copyright ownership. The ASF licenses this file | ||
// to you under the Apache License, Version 2.0 (the | ||
// "License"); you may not use this file except in compliance | ||
// with the License. You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, | ||
// software distributed under the License is distributed on an | ||
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
// KIND, either express or implied. See the License for the | ||
// specific language governing permissions and limitations | ||
// under the License. | ||
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package adbc | ||
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import ( | ||
"golang.org/x/exp/slog" | ||
) | ||
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// DatabaseLogging is a Database that also supports logging information to an | ||
// application-supplied log sink. | ||
// | ||
// EXPERIMENTAL. Not formally part of the ADBC APIs. | ||
type DatabaseLogging interface { | ||
SetLogger(*slog.Logger) | ||
} |
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