the question about parse yaml file

dy20082250 · 01-24-2018, 09:31 PM

Code:

java.lang.VerifyError: org/ho/yaml/ReflectionUtil
at org.ho.yaml.JYamlParserEvent.<init>(Unknown Source)
at org.ho.yaml.YamlDecoder.readObjectOfType(Unknown Source)
at org.ho.yaml.YamlConfig.loadType(Unknown Source)
at org.ho.yaml.YamlConfig.loadType(Unknown Source)
at org.ho.yaml.Yaml.loadType(Unknown Source)
at com.eisoo.content.locator.ElementLocator.getLocatorMapFromYamlFile(ElementLocator.java:34)

when the program run:

Code:

locatorMap = Yaml.loadType(new FileInputStream(yamlFile.getAbsolutePath()), HashMap.class);

I am sure that the yaml file is correct and I have checked it so many times
below is the yaml file,its name is common.yaml:

#========user login============#
tap:
type:text
value:"me"

PS: I am using jyaml.jar-1.3

astrogeek · 01-25-2018, 05:53 PM

As no one else has stepped up I will try to offer some direction...

First, your question appears to include an error message, but does not include the section of the file which is producing the error. It would be difficult for anyone to provide help without knowing what input is producing the error.

Next, I would suggest using your search engine of choice to look for similar problems and solutions already available, which is what I have had to do. Searching for "parse yaml with java" produces many useful looking hits. Looking over those results it appears to me that different parsers produce different results from the same yml input file - which makes finding an answer somewhat hit-or-miss.

jyaml is the original java yml parser implementation, but I see many references to the Jackson-yaml-module as a better, specifically more reliable alternative.

You can find reference information for many yaml parser implementations at Yaml.org, including jyaml which you are using.

If you still cannot find help, please post the file, or section of the file which produces the error, along with a more complete description of how you invoke the program and the complete error it produces.

Good luck!

ntubski · 01-25-2018, 06:10 PM

I think this part was supposed to indicate the input, though it suffered from lack of [code][/code] tags:

Code:

#========user login============#
tap:
  type:text
  value:"me"

I don't really know much about yaml or jyaml, but something to try would be to cut down even further to see which part causes problems, e.g., take out the quotes around "me", does just a bare

Code:

tap:me

work?

dy20082250 · 01-26-2018, 03:11 AM

Hi All

I have found the root cause

it is the jyaml.jar,in android platform,this jar can not be used

I have found a new jar :snakeyaml-1.18-android.jar

But I found that the code used to parse is not perfect:

Code:

private Map getLocatorMapFromYamlFile(String fileName)  {
        File yamlFile = new File("/sdcard/pagelocator/" + fileName + ".yaml");
        Map locatorMap = null;

        if(!yamlFile.exists() || !yamlFile.canRead())
            return locatorMap;
        try {
            Yaml yaml = new Yaml();
            locatorMap = (Map)yaml.load(new FileInputStream(yamlFile.getAbsolutePath()));
            System.out.println("load yaml successfully");
        } catch (Exception e) {
            LogUtil.warn("WARNING: Fail to read yaml file: " + fileName + ".yaml");
        }
        return locatorMap;
    }

public UiSelector getLocator(String key, ArrayList<String> locatorStringReplacement) {
        UiSelector locatorBy = null;
        if (_locatorMap == null)
            return null;
        String type[] = null;
        String value[] = null;
        if (_locatorMap.containsKey(key)) {
            //get the value of the keyword
            String indexValue = _locatorMap.get(key).toString();
            //slice to type and value, index 0 is type and index 1 is value
            String typeAndValue[] = indexValue.split(" ");
            //slice type
            type = typeAndValue[0].split(":");
            //slice value
            value = typeAndValue[1].split("value:");

          
            if (type[1].equals("text") && null!=value[1])
                locatorBy = new UiSelector().text(value[1]);
            else if (type[1].equals("ctext"))
                locatorBy = new UiSelector().textContains(value[1]);
            else if (type[1].equals("stext"))
                locatorBy = new UiSelector().textStartsWith(value[1]);
            else if (type[1].equals("id"))
            { System.out.println(value[1]);
                locatorBy = new UiSelector().resourceId(value[1]);}
            else if (type[1].equals("classname"))
                locatorBy = new UiSelector().className(value[1]);
            else if (type[1].equals("desc"))
                locatorBy = new UiSelector().description(value[1]);
            else if (type[1].equals("sdesc"))
                locatorBy = new UiSelector().descriptionStartsWith(value[1]);
            else if (type[1].equals("cdesc"))
                locatorBy = new UiSelector().descriptionContains(value[1]);
        else{
            LogUtil.error("The locator with specified name " + key + " does not exist.");
        }
        return locatorBy;
    }

it is useful to my issue,but I think there should be other better methods
I did not construct a good data structure to parse:

Code:

#========user login============#
tap:
  type:text
  value:"me"

dy20082250 · 01-26-2018, 03:19 AM

Quote:

Originally Posted by ntubski

I think this part was supposed to indicate the input, though it suffered from lack of [code][/code] tags:

Code:

#========user login============#
tap:
  type:text
  value:"me"

I don't really know much about yaml or jyaml, but something to try would be to cut down even further to see which part causes problems, e.g., take out the quotes around "me", does just a bare

Code:

tap:me

work?

In fact the "me" is working for my program, of course ,take out the quotes around "me" is also working,it is not the root cause

dy20082250 · 01-26-2018, 03:22 AM

Quote:

Originally Posted by astrogeek

As no one else has stepped up I will try to offer some direction...

First, your question appears to include an error message, but does not include the section of the file which is producing the error. It would be difficult for anyone to provide help without knowing what input is producing the error.

Next, I would suggest using your search engine of choice to look for similar problems and solutions already available, which is what I have had to do. Searching for "parse yaml with java" produces many useful looking hits. Looking over those results it appears to me that different parsers produce different results from the same yml input file - which makes finding an answer somewhat hit-or-miss.

jyaml is the original java yml parser implementation, but I see many references to the Jackson-yaml-module as a better, specifically more reliable alternative.

You can find reference information for many yaml parser implementations at Yaml.org, including jyaml which you are using.

If you still cannot find help, please post the file, or section of the file which produces the error, along with a more complete description of how you invoke the program and the complete error it produces.

Good luck!

I have suffered this issue for three days and search on google and tried many methods,but did not found the root cause
in the end , a developer told me that the jar can not be used on android.........