我正在尝试使用 Groovy 和 Snakeyaml 解析以下 YAML 文件(显然我已经清理了数据,但这足以证明问题):
---
info:
summary: Snakeyaml Issue
examples:
- 1st example:
name: Example 1
sublist:
- 0.1:
foo: bar
我希望得到以下声明:
println resource.info.summary
println resource.examples."1st example".name
println resource.examples."1st example".sublist."0.1"
产生:
Snakeyaml Issue
Example 1
[foo:bar]
and:
println resource.examples."1st example".sublist."0.1".foo
产生:
bar
但是,那actual输出来自:
println resource.info.summary
println resource.examples."1st example".name
println resource.examples."1st example".sublist."0.1"
println resource.examples."1st example".sublist."0.1".foo
is:
Snakeyaml Issue
[Example 1]
[[[foo:bar]]]
[[bar]]
我只能通过包含列表索引来获得所需的输出:
println resource.info.summary
println resource.examples[0]."1st example".name
println resource.examples[0]."1st example".sublist[0]."0.1"
println resource.examples[0]."1st example".sublist[0]."0.1".foo
这似乎没有必要。也许我误解了数据的结构?
为了完整起见,我用来说明问题的常规代码如下所示(我从网上获取了 CustomerResolver 代码,以便它将浮点数保留为字符串):
import org.yaml.snakeyaml.DumperOptions
import org.yaml.snakeyaml.Yaml
import org.yaml.snakeyaml.constructor.Constructor
import org.yaml.snakeyaml.nodes.Tag
import org.yaml.snakeyaml.representer.Representer
import org.yaml.snakeyaml.resolver.Resolver
def fileName = "example.yaml"
def Yaml yaml = new Yaml(new Constructor(), new Representer(), new DumperOptions(),
new CustomResolver())
def resource = yaml.load(new File(fileName).newInputStream())
println resource.info.summary
println resource.examples."1st example".name
println resource.examples."1st example".sublist."0.1"
println resource.examples."1st example".sublist."0.1".foo
class CustomResolver extends Resolver {
/*
* Do not resolve float and timestamp
*/
protected void addImplicitResolvers() {
addImplicitResolver(Tag.BOOL, BOOL, "yYnNtTfFoO");
addImplicitResolver(Tag.INT, INT, "-+0123456789");
addImplicitResolver(Tag.MERGE, MERGE, "<");
addImplicitResolver(Tag.NULL, NULL, "~nN\0");
addImplicitResolver(Tag.NULL, EMPTY, null);
}
}
有任何想法吗?