github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/services/task.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package services
    19  
    20  import (
    21  	sc "context"
    22  	"github.com/aacfactory/errors"
    23  	"github.com/aacfactory/fns/commons/bytex"
    24  	"github.com/aacfactory/fns/commons/futures"
    25  	"github.com/aacfactory/fns/context"
    26  	"github.com/aacfactory/fns/services/tracings"
    27  )
    28  
    29  type FnTask struct {
    30  	Fn      Fn
    31  	Promise futures.Promise
    32  }
    33  
    34  func (task FnTask) Execute(ctx sc.Context) {
    35  	r := LoadRequest(context.Wrap(ctx))
    36  	// tracing
    37  	trace, hasTrace := tracings.Load(r)
    38  	if hasTrace {
    39  		trace.Waited()
    40  	}
    41  	v, err := task.Fn.Handle(r)
    42  	if err != nil {
    43  		ep, fn := r.Fn()
    44  		codeErr := errors.Wrap(err).WithMeta("endpoint", bytex.ToString(ep)).WithMeta("fn", bytex.ToString(fn))
    45  		if hasTrace {
    46  			trace.Finish("succeed", "false", "cause", codeErr.Name())
    47  		}
    48  		task.Promise.Failed(codeErr)
    49  	} else {
    50  		if hasTrace {
    51  			trace.Finish("succeed", "true")
    52  		}
    53  		task.Promise.Succeed(NewResponse(v))
    54  	}
    55  }