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handler.go
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handler.go
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// Copyright 2022 Upbound Inc
//
// Licensed 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.
package handler
import (
"context"
"github.com/sourcegraph/jsonrpc2"
"github.com/crossplane/crossplane-runtime/pkg/logging"
"github.com/upbound/up/internal/xpls/dispatcher"
"github.com/upbound/up/internal/xpls/server"
)
// A Handler handles LSP requests.
type Handler struct {
log logging.Logger
dispatcher *dispatcher.Dispatcher
server *server.Server
}
// New constructs a new LSP handler,
func New(opts ...Option) (*Handler, error) {
h := &Handler{
log: logging.NewNopLogger(),
}
server, err := server.New(server.WithLogger(h.log))
if err != nil {
return nil, err
}
h.server = server
h.dispatcher = dispatcher.New(dispatcher.WithLogger(h.log))
for _, o := range opts {
o(h)
}
return h, nil
}
// Option modifies a handler.
type Option func(h *Handler)
// WithLogger sets the logger for the handler.
func WithLogger(l logging.Logger) Option {
return func(h *Handler) {
h.log = l
}
}
// Handle handles LSP requests. It panics if we cannot initialize the workspace.
func (h *Handler) Handle(ctx context.Context, conn *jsonrpc2.Conn, r *jsonrpc2.Request) { // nolint:gocyclo
h.dispatcher.Dispatch(ctx, h.server, conn, r)
}