/
Tag.go
171 lines (148 loc) · 4.68 KB
/
Tag.go
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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
*
* https://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 bacnetip
import (
"context"
"encoding/binary"
"fmt"
"strings"
apiModel "github.com/apache/plc4x/plc4go/pkg/api/model"
apiValues "github.com/apache/plc4x/plc4go/pkg/api/values"
readWriteModel "github.com/apache/plc4x/plc4go/protocols/bacnetip/readwrite/model"
"github.com/apache/plc4x/plc4go/spi/utils"
)
type BacNetPlcTag interface {
apiModel.PlcTag
GetObjectId() objectId
GetProperties() []property
}
type plcTag struct {
ObjectId objectId
// Properties 1..N identifiers
Properties []property
}
type objectId struct {
// ObjectIdType defines the object type. If not defined ObjectIdTypeProprietary must be defined
ObjectIdType *readWriteModel.BACnetObjectType
// ObjectIdTypeProprietary is only defined if ObjectIdType is not defined
ObjectIdTypeProprietary *uint16
// ObjectIdInstance is the instance of this object
ObjectIdInstance uint32
}
func (o objectId) getId() uint16 {
if o.ObjectIdType != nil {
return uint16(*o.ObjectIdType)
} else {
return *o.ObjectIdTypeProprietary
}
}
func (o objectId) String() string {
var result string
if o.ObjectIdType != nil {
result += fmt.Sprint(*o.ObjectIdType)
} else {
result += fmt.Sprint(*o.ObjectIdTypeProprietary)
}
result += fmt.Sprintf(":%d", o.ObjectIdInstance)
return result
}
type property struct {
// PropertyIdentifier defines the property type. If not defined PropertyIdentifierProprietary must be defined
PropertyIdentifier *readWriteModel.BACnetPropertyIdentifier
// PropertyIdentifierProprietary is only defined if PropertyIdentifier is not defined
PropertyIdentifierProprietary *uint32
// ArrayIndex Optional index of property
ArrayIndex *uint
}
func (p property) getId() uint32 {
if p.PropertyIdentifier != nil {
return uint32(*p.PropertyIdentifier)
} else {
return *p.PropertyIdentifierProprietary
}
}
func (p property) String() string {
var result string
if p.PropertyIdentifier != nil {
result += fmt.Sprint(*p.PropertyIdentifier)
} else {
result += fmt.Sprint(*p.PropertyIdentifierProprietary)
}
if p.ArrayIndex != nil {
result += fmt.Sprintf(":[%d]", p.ArrayIndex)
}
return result
}
func (m plcTag) GetAddressString() string {
var properties []string
for _, p := range m.Properties {
properties = append(properties, fmt.Sprint(p))
}
propertiesString := strings.Join(properties, "&")
return fmt.Sprintf("%v/%s", m.ObjectId, propertiesString)
}
func (m plcTag) GetValueType() apiValues.PlcValueType {
return apiValues.Struct
}
func (m plcTag) GetArrayInfo() []apiModel.ArrayInfo {
return []apiModel.ArrayInfo{}
}
func (m plcTag) GetObjectId() objectId {
return m.ObjectId
}
func (m plcTag) GetProperties() []property {
return m.Properties
}
func (m plcTag) Serialize() ([]byte, error) {
wb := utils.NewWriteBufferByteBased(utils.WithByteOrderForByteBasedBuffer(binary.BigEndian))
if err := m.SerializeWithWriteBuffer(context.Background(), wb); err != nil {
return nil, err
}
return wb.GetBytes(), nil
}
func (m plcTag) SerializeWithWriteBuffer(ctx context.Context, writeBuffer utils.WriteBuffer) error {
if err := writeBuffer.PushContext("BacNetPlcTag"); err != nil {
return err
}
if err := writeBuffer.WriteString("objectId", uint32(len([]rune(m.ObjectId.String()))*8), "UTF-8", m.ObjectId.String()); err != nil {
return err
}
if err := writeBuffer.PushContext("properties"); err != nil {
return err
}
for _, p := range m.Properties {
if err := writeBuffer.WriteString("property", uint32(len([]rune(p.String()))*8), "UTF-8", p.String()); err != nil {
return err
}
}
if err := writeBuffer.PopContext("properties"); err != nil {
return err
}
if err := writeBuffer.PopContext("BacNetPlcTag"); err != nil {
return err
}
return nil
}
func (m plcTag) String() string {
writeBuffer := utils.NewWriteBufferBoxBasedWithOptions(true, true)
if err := writeBuffer.WriteSerializable(context.Background(), m); err != nil {
return err.Error()
}
return writeBuffer.GetBox().String()
}