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router_rule.go
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router_rule.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
*
* 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 condition
import (
"strings"
)
import (
gxstrings "github.com/dubbogo/gost/strings"
)
import (
"github.com/apache/dubbo-go/cluster/router"
"github.com/apache/dubbo-go/common"
"github.com/apache/dubbo-go/common/constant"
"github.com/apache/dubbo-go/common/yaml"
)
// RouterRule RouterRule config read from config file or config center
type RouterRule struct {
router.BaseRouterRule `yaml:",inline"`
Conditions []string
}
/* Parse Router raw rule parser
* example :
* scope: application
* runtime: true
* force: false
* conditions:
* - >
* method!=sayHello =>
* - >
* ip=127.0.0.1
* =>
* 1.1.1.1
*/
func getRule(rawRule string) (*RouterRule, error) {
r := &RouterRule{}
err := yaml.UnmarshalYML([]byte(rawRule), r)
if err != nil {
return r, err
}
r.RawRule = rawRule
if len(r.Conditions) > 0 && len(r.Key) > 0 && (r.Scope == constant.RouterApplicationScope || r.Scope == constant.RouterServiceScope) {
r.Valid = true
}
return r, nil
}
// isMatchGlobalPattern Match value to param content by pattern
func isMatchGlobalPattern(pattern string, value string, param *common.URL) bool {
if param != nil && strings.HasPrefix(pattern, "$") {
pattern = param.GetRawParam(pattern[1:])
}
return gxstrings.IsMatchPattern(pattern, value)
}