@Internal public class ComputeInstanceMetadataResolverUtils extends Object
ComputeInstanceMetadataResolver
's.Constructor and Description |
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ComputeInstanceMetadataResolverUtils() |
Modifier and Type | Method and Description |
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static void |
populateMetadata(AbstractComputeInstanceMetadata instanceMetadata,
Map<?,?> metadata)
Populates the instance instance metadata's
AbstractComputeInstanceMetadata.setMetadata(Map) property. |
static com.fasterxml.jackson.databind.JsonNode |
readMetadataUrl(URL url,
int connectionTimeoutMs,
int readTimeoutMs,
com.fasterxml.jackson.databind.ObjectMapper objectMapper,
Map<String,String> requestProperties)
Reads the result of a URL and parses it using the given
ObjectMapper . |
static Optional<String> |
stringValue(com.fasterxml.jackson.databind.JsonNode json,
String key)
Resolve a value as a string from the metadata json.
|
public ComputeInstanceMetadataResolverUtils()
public static com.fasterxml.jackson.databind.JsonNode readMetadataUrl(URL url, int connectionTimeoutMs, int readTimeoutMs, com.fasterxml.jackson.databind.ObjectMapper objectMapper, Map<String,String> requestProperties) throws IOException
ObjectMapper
.url
- the URL to readconnectionTimeoutMs
- connection timeout, in millisecondsreadTimeoutMs
- read timeout, in millisecondsobjectMapper
- Jackson's ObjectMapper
requestProperties
- any request properties to passJsonNode
instanceIOException
- if any I/O error occurspublic static Optional<String> stringValue(com.fasterxml.jackson.databind.JsonNode json, String key)
json
- The jsonkey
- The keypublic static void populateMetadata(AbstractComputeInstanceMetadata instanceMetadata, Map<?,?> metadata)
AbstractComputeInstanceMetadata.setMetadata(Map)
property.instanceMetadata
- The instance metadatametadata
- A map of metadata