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TagHandler.go
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TagHandler.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 eip
import (
"fmt"
"github.com/apache/plc4x/plc4go/protocols/eip/readwrite/model"
"regexp"
apiModel "github.com/apache/plc4x/plc4go/pkg/api/model"
)
type TagHandler struct {
addressPattern *regexp.Regexp
}
func NewTagHandler() TagHandler {
return TagHandler{
addressPattern: regexp.MustCompile(`^%(?P<tag>[%a-zA-Z_.0-9]+\[?[0-9]*]?):?(?P<dataType>[A-Z]*):?(?P<elementNb>[0-9]*)`),
}
}
const (
TAG = "tag"
DATA_TYPE = "dataType"
ELEMENT_NB = "elementNb"
)
func (m TagHandler) ParseTag(tagAddress string) (apiModel.PlcTag, error) {
// TODO: This isn't pretty ...
return NewTag(tagAddress, model.CIPDataTypeCode_DINT, uint16(1)), nil
}
func (m TagHandler) ParseQuery(query string) (apiModel.PlcQuery, error) {
return nil, fmt.Errorf("queries not supported")
}