pkg/filter/sentinel/matcher.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 sentinel

type (
	//PathMatcher according the url path find APIResource name
	PathMatcher interface {
		load(apis []*Resource)

		match(path string) (string, bool)
	}

	Matcher struct {
		matchers []PathMatcher
	}
)

func NewMatcher() *Matcher {
	return &Matcher{
		matchers: []PathMatcher{
			&Exact{},
			&Regex{},
		},
	}
}

// Load load api resource for matchers
func (m *Matcher) Load(apis []*Resource) {
	for _, v := range m.matchers {
		v.load(apis)
	}
}

// Match match resource via url path
func (m *Matcher) Match(path string) (string, bool) {
	for _, matchers := range m.matchers {
		if res, ok := matchers.match(path); ok {
			return res, ok
		}
	}
	return "", false
}