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+
+
+# HIP-01: Refactoring AbstractCollect
+
+
+# Motivation
+
+In the current situation, almost every collector needs to execute the preCheck method (with inconsistent names), and there are also redundant `try-catch` statements;
+
+I suggest providing another `preCheck` method for `AbstractCollect` to separate the validate logic from the collector's logic, which would make the code structure clearer and also facilitate the writing of unit tests.
+
+# Goals
+
+## In Scope
+
+Add a method `preCheck` to `AbstractCollect`.
+
+
+
+
+# Detailed Design
+
+## Design & Implementation Details
+
+Add a method `preCheck` to the `org.apache.hertzbeat.collector.collect.AbstractCollect` class:
+
+```java
+public abstract class AbstractCollect {
+
+    /**
+     * @param metrics metric configuration
+     * @throws Exception when validation failed
+     */
+    public abstract void preCheck(Metrics metrics) throws Exception;
+}
+```
+
+Before calling the method `org.apache.hertzbeat.collector.collect.AbstractCollect#collect`, call the `preCheck` method and catch the exception.
+
+Refactoring all `AbstractCollect` to implement the `preCheck` method.
+
+Supplement the relevant unit tests.
+
+
+
+
+
+# Links
+
+<!--
+Updated afterwards
+-->
+* Mailing List discussion thread: https://lists.apache.org/thread/cvvo7xg35fxq7kml5ggdrcdygrx6yvyj
+* Mailing List voting thread: https://lists.apache.org/thread/1s7dhrb27qfdx1gsh29dvmo8frjbt619
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