cluster/router/uniform/match_judger/attachment_match_judger.go

/*
 * 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 match_judger

import (
	"github.com/apache/dubbo-go/config"
	"github.com/apache/dubbo-go/protocol"
)

type AttachmentMatchJudger struct {
	config.DubboAttachmentMatch
}

func (amj *AttachmentMatchJudger) Judge(invocation protocol.Invocation) bool {
	invAttaMap := invocation.Attachments()
	if amj.EagleeyeContext != nil {
		for k, v := range amj.EagleeyeContext {
			invAttaValue, ok := invAttaMap[k]
			if !ok {
				if v.Empty == "" {
					return false
				}
			}
			// exist this key
			str, ok := invAttaValue.(string)
			if !ok {
				return false
			}
			strJudger := NewStringMatchJudger(v)
			if !strJudger.Judge(str) {
				return false
			}
		}
	}

	if amj.DubboContext != nil {
		for k, v := range amj.DubboContext {
			invAttaValue, ok := invAttaMap[k]
			if !ok {
				if v.Empty == "" {
					return false
				}
			}
			// exist this key
			str, ok := invAttaValue.(string)
			if !ok {
				return false
			}
			strJudger := NewStringMatchJudger(v)
			if !strJudger.Judge(str) {
				return false
			}
		}
	}

	return true
}

func NewAttachmentMatchJudger(matchConf *config.DubboAttachmentMatch) *AttachmentMatchJudger {
	return &AttachmentMatchJudger{
		DubboAttachmentMatch: *matchConf,
	}
}