add java analysis tutorial

tutorial/notebook/java_analysis.ipynb

@@ -0,0 +1,98 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Java 分析示例\n",
+    "这是一个使用CodeFuse-Query分析java项目的教程。在教程中，你将体验到使用命令行工具对代码仓库进行数据化，然后使用Godel语言来分析这个仓库。"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "STEP 0: 克隆要分析的仓库。我们以蚂蚁集团的 SOFABolt 项目为例。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!git clone https://github.com/sofastack/sofa-bolt.git"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "STEP 1: 代码数据化。使用 `sparrow database create` 命令创建一个db文件，需要指定待分析的仓库地址，分析的语言，以及db文件的存储路径。该文件存储着代码仓库的结构化数据，之后的分析就是针对这份数据进行。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!sparrow database create --source-root sofa-bolt --data-language-type java --output ./db/sofa-bolt"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "STEP 2: 使用Godel分析语言分析db文件。在本教程中，可以点击代码左侧的执行按钮，直接运行分析脚本。在命令行中，你可以使用 `sparrow query run` 命令来执行查询脚本，具体可以使用`sparrow query run -h` 来获取详细参数信息。\n",
+    "在这个例子中，我们使用Godel语言查询了全仓库的类方法。你也可以在where子句中加入过滤条件，获取你想要的结果。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%db db/sofa-bolt\n",
+    "// script\n",
+    "use coref::java::{Callable, Class, Interface, JavaDB}\n",
+    "\n",
+    "fn db() -> JavaDB {\n",
+    "    return JavaDB::load(\"coref_java_src.db\")\n",
+    "}\n",
+    "\n",
+    "query class_method from\n",
+    "    m in Callable(db()),\n",
+    "    c in Class(db())\n",
+    "where\n",
+    "    c.id = m.getBelongedClass().id\n",
+    "select\n",
+    "    c.getQualifiedName() as className,\n",
+    "    m.getName() as methodName,\n",
+    "    m.getSignature() as methodSignature"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Godel kernel",
+   "language": "rust",
+   "name": "godel-jupyter"
+  },
+  "language_info": {
+   "file_extension": ".gdl",
+   "help_links": [
+    {
+     "text": "Godel kernel Magics",
+     "url": "https://sparrow.alipay.com"
+    }
+   ],
+   "mimetype": "text/rust",
+   "name": "rust",
+   "version": "0.0.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}