dubbo AbstractValidation 源码
dubbo AbstractValidation 代码
文件路径：/dubbo-filter/dubbo-filter-validation/src/main/java/org/apache/dubbo/validation/support/AbstractValidation.java
/*
* 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 org.apache.dubbo.validation.support;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.validation.Validation;
import org.apache.dubbo.validation.Validator;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* AbstractValidation is abstract class for Validation interface. It helps low level Validation implementation classes
* by performing common task e.g. key formation, storing instance of validation class to avoid creation of unnecessary
* copy of validation instance and faster execution.
*
* @see Validation
* @see Validator
*/
public abstract class AbstractValidation implements Validation {
private final ConcurrentMap<String, Validator> validators = new ConcurrentHashMap<>();
@Override
public Validator getValidator(URL url) {
String key = url.toFullString();
Validator validator = validators.get(key);
if (validator == null) {
validators.put(key, createValidator(url));
validator = validators.get(key);
}
return validator;
}
protected abstract Validator createValidator(URL url);
}
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