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PluginDeclarer.java
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PluginDeclarer.java
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/*
* Copyright (C) 2021-2022 Huawei Technologies Co., Ltd. All rights reserved.
*
* Licensed 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 io.sermant.core.plugin.agent.declarer;
import io.sermant.core.plugin.agent.collector.PluginCollector;
import io.sermant.core.plugin.agent.matcher.ClassMatcher;
/**
* PluginDeclarer,high level api for {@link PluginDescription}
* <p>The interface attempts to merge when assembled, as shown in {@link PluginCollector}
* <p>Therefore, it is recommended that users use this interface first to define enhanced plugins
*
* @author HapThorin
* @version 1.0.0
* @since 2022-01-24
*/
public interface PluginDeclarer {
/**
* Gets the class matcher for the plugin
*
* @return class matcher
*/
ClassMatcher getClassMatcher();
/**
* Gets the plugin's InterceptDeclarers
*
* @param classLoader The classLoader of the enhanced class
* @return InterceptDeclarer set
*/
InterceptDeclarer[] getInterceptDeclarers(ClassLoader classLoader);
/**
* Gets the superclass declarers for the plugin
*
* @return SuperTypeDeclarer set
*/
SuperTypeDeclarer[] getSuperTypeDeclarers();
/**
* It is up to the plugin declarator to decide if the declared method needs to be enhanced. The default is TRUE
*
* @return result
*/
default boolean isEnabled() {
return true;
}
}