Alloy - 从.als生成.xml实例 [英] Alloy - Generate .xml instance from .als
问题描述
我需要在程序中从.als生成随机的.xml实例。我设法通过在后台运行合金（不可见的JFrame）并调用doOpen，doExecuteLatest和doShowLatest函数来做到这一点。但每次运行我的代码时都要等合金开始是一件痛苦的事。我认为如果我只使用合成代码部分执行此程序（我想这将是kodkod）会更有效率。
有谁知道怎么做？我发现合金的代码非常令人困惑......
I need to generate random .xml instances from an .als in my program. I managed to do that by running alloy in background (invisible JFrame) and calling the doOpen, doExecuteLatest and doShowLatest functions. But having to wait alloy to start every time I run my code is a pain. I think it would be more efficient if I simply used the alloy code section that does this procedure (I imagine that would be kodkod). Does anyone know how to do that? I found alloy's code to be pretty confusing...
推荐答案
您可以使用Alloy API。
生成实例并将其写为XML文件可以按照以下步骤轻松完成：
You can use the Alloy API. Generating an instance and writing it as an XML file can be easily done following those steps:
-
读取合金来自其源文件的模型。
Read the alloy model from its source file.
model = CompUtil.parseEverything_fromFile（null，null，
yourmodel.als）;
model = CompUtil.parseEverything_fromFile(null, null, "yourmodel.als");
获取执行命令。例如：
Get the command to execute. for example :
命令cmd = model.getAllCommands（）。get（0）;
Command cmd=model.getAllCommands().get(0);
使用步骤2中获得的命令执行模型
Execute the model using the command obtained in step 2
A4Solution solution = TranslateAlloyToKodkod.execute_command（null，
model.getAllReachableSigs（），cmd，new A4Options（））;
A4Solution solution= TranslateAlloyToKodkod.execute_command(null, model.getAllReachableSigs(), cmd, new A4Options());
写下在步骤3中生成的解决方案
Write the solution generated in step 3
solution.writeXML（path / to / your.xml）;
solution.writeXML("path/to/your.xml");
可以在Alloy jar文件的edu.mit.csail.sdg.alloy4whole包中找到示例
Examples can be found in the edu.mit.csail.sdg.alloy4whole package of the Alloy jar file
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