Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2015 Andy Chong Chin Shin * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ package com.sqatntu.metrics.listener; import com.sqatntu.api.JavaBaseListener; import com.sqatntu.api.JavaParser; import com.sqatntu.metrics.report.MetricReport; import org.antlr.v4.runtime.ParserRuleContext; /** * Created by andyccs on 18/12/15. */ public class DepthOfConditionNestingListener extends JavaBaseListener { private MetricReport report; public DepthOfConditionNestingListener(MetricReport report) { this.report = report; } @Override public void enterStatement(JavaParser.StatementContext ctx) { ctx.getChildCount(); String text = ctx.getStart().getText(); if (!text.equals("if") && !text.equals("while") && !text.equals("for") && !text.equals("do")) { return; } int depth = 1; ParserRuleContext tempContext = ctx.getParent(); while (!(tempContext instanceof JavaParser.MethodDeclarationContext)) { if (tempContext instanceof JavaParser.StatementContext) { text = tempContext.getStart().getText(); if (text.equals("if") || text.equals("while") || text.equals("for") || text.equals("do")) { depth++; } } tempContext = tempContext.getParent(); } report.setDepthOfConditionNesting(depth); } }