The best practice and common question answers to the ST Metrics framework in the Java library

The ST Metrics framework is a Java class library for measurement software quality.It provides a set of ready -made tools and indicators to help developers evaluate the maintenance, robustness and reliability of the code.This article will introduce the best practice and common questions and common questions in the Java library in the ST Metrics framework, and provide some Java code examples. Best Practices: 1. Regular execution measurement: It is recommended to integrate the measurement process into the development process and perform regularly to measure the potential problems in the early stage of the development cycle, and take measures in time for repair. 2. Continuous improvement: Use the measurement results to guide the improvement of code quality.According to the specific indicator value, the development team can determine which aspects need to be improved and continue to optimize the quality of the code. 3. Respectation: Use the visualization tools provided by ST Metrics to display the results of the measurement measurement results in order to better understand the trend and change of code quality.This helps developers and teams better understand and evaluate the quality of software. Frequently Asked Questions: Q1: How to use the ST Metrics framework to measure? A1: First of all, you need to introduce the dependencies of ST Metrics in the project.Then, select the appropriate measurement index according to specific needs.You can use the annotations that the code blocks that need to be measured, or write custom rules.Finally, the degree of execution and obtaining the measurement results for further analysis. Q2: How to interpret the results? A2: The ST METRICS framework provides some common measurement indicators, such as the complexity of the circle, the number of code rows, and the dependencies of the class.The specific meaning of these indicators can refer to framework documents or related information.For the measurement results of a module or function, compare the index value and standard threshold to determine its quality and whether it is optimized. Q3: How to deal with problems with too much or too little results? A3: When the measurement result is too much, you can choose the measurement index of attention according to the needs and analyze the code.When the measurement results are too small, the particle size that may be adjusted may be needed to cover more code.The appropriate measurement results can be balanced according to the size and complexity of the project. The following uses some Java code examples to display the use of the St Metrics framework: // Use circle complexity weight public class ExampleClass { @Metrics annotation can be used for the complexity of the measurement class @Metrics("Cyclomatic Complexity") public static void myMethod() { // ... } } // Customized measurement rules public class CustomRule extends MetricsRule { @Override protected void evaluateNode(ASTMethodOrConstructorDeclaration node, Object data) { // Customized measurement logic // ... // Add measurement results addViolationWithMessage(data, node, "Custom Metrics Rule violation"); } @Override public Object visit(AstNode node, Object data) { node.childrenAccept(this, data); return data; } } // Execute weight and get results public class MetricsRunner { public static void main(String[] args) { // Create a measure engine MetricsEngine engine = new MetricsEngine(); // Add measurement rules engine.addMetric(new CustomRule()); // Executive weight MetricResults results = engine.run(args[0]); // Treatment measurement results for (MetricResult result : results.getResults()) { System.out.println(result.getMetric() + " : " + result.getValue()); } } } Summarize: The ST Metrics framework is a Java class library used to measure software quality. By providing ready -made tools and indicators, it helps developers to evaluate the quality of the code.When using this framework, the quality of the code should be performed regularly, the quality of the code is continuously improved, and the results shall be visually displayed.Common questions include how to use the framework for measurement, how to interpret the results, and how to deal with excessive or too little.The above Java code example shows the specific application of the St Metrics framework.