# パッケージ com.amazonaws.util

- クラスの概要
  クラス | 説明
  --- | ---
  AwsHostNameUtils |
  AWSRequestMetrics |
  BinaryUtils | Utilities for encoding and decoding binary data to and from different forms.
  ContentLengthValidationInputStream | This class validates the Amazon S3 response for the content length as the data is read from the input stream.
  CountingInputStream | Simple input stream wrapper utility to count the bytes read from a stream.
  CRC32ChecksumCalculatingInputStream | Simple InputStream wrapper that examines the wrapped stream's contents as they are read and calculates and CRC32 checksum.
  DateUtils | Utilities for parsing and formatting dates.
  EC2MetadataUtils | Utility class for retrieving Amazon EC2 instance metadata.
  EC2MetadataUtils.IAMInfo | Information about the last time the instance profile was updated, including the instance's LastUpdated date, InstanceProfileArn, and InstanceProfileId.
  EC2MetadataUtils.IAMSecurityCredential | The temporary security credentials (AccessKeyId, SecretAcessKey, SessionToken, and Expiration) associated with the IAM role.
  EC2MetadataUtils.NetworkInterface | All of the metada associated with a network interface on the instance.
  HttpUtils |
  ImmutableMapParameter<K,V> | An immutable map that could be built by convenient constructors.
  ImmutableMapParameter.Builder<K,V> | A convenient builder for creating ImmutableMapParameter instances.
  Md5Utils | Utility methods for computing MD5 sums.
  ResponseMetadataCache | Cache of response metadata for recently executed requests for diagnostic purposes.
  StringInputStream | Simple wrapper for ByteArrayInputStream that will automatically encode the string as UTF-8 data, and still allows access to the original string.
  StringUtils | Utilities for converting objects to strings.
  TimingInfo |
  VersionInfoUtils | Utility class for accessing AWS SDK versioning information.
  XmlUtils |
  XMLWriter | Utility for creating easily creating XML documents, one element at a time.
  XpathUtils | Utility methods for extracting data from XML documents using Xpath expressions.

- 列挙型の概要
  列挙型 | 説明
  --- | ---
  AWSRequestMetrics.Field | Set of predefined Metrics.