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report.go
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report.go
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// Copyright 2015 CoreOS, 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 validate
import (
"encoding/json"
"fmt"
)
// Report represents the list of entries resulting from validation.
type Report struct {
entries []Entry
}
// Error adds an error entry to the report.
func (r *Report) Error(line int, message string) {
r.entries = append(r.entries, Entry{entryError, message, line})
}
// Warning adds a warning entry to the report.
func (r *Report) Warning(line int, message string) {
r.entries = append(r.entries, Entry{entryWarning, message, line})
}
// Info adds an info entry to the report.
func (r *Report) Info(line int, message string) {
r.entries = append(r.entries, Entry{entryInfo, message, line})
}
// Entries returns the list of entries in the report.
func (r *Report) Entries() []Entry {
return r.entries
}
// Entry represents a single generic item in the report.
type Entry struct {
kind entryKind
message string
line int
}
// String returns a human-readable representation of the entry.
func (e Entry) String() string {
return fmt.Sprintf("line %d: %s: %s", e.line, e.kind, e.message)
}
// MarshalJSON satisfies the json.Marshaler interface, returning the entry
// encoded as a JSON object.
func (e Entry) MarshalJSON() ([]byte, error) {
return json.Marshal(map[string]interface{}{
"kind": e.kind.String(),
"message": e.message,
"line": e.line,
})
}
type entryKind int
const (
entryError entryKind = iota
entryWarning
entryInfo
)
func (k entryKind) String() string {
switch k {
case entryError:
return "error"
case entryWarning:
return "warning"
case entryInfo:
return "info"
default:
panic(fmt.Sprintf("invalid kind %d", k))
}
}