IamPolicyReader (AWS Java SDK :: IAM :: Policy Builder 2.21.30 API)

All Known Implementing Classes:

DefaultIamPolicyReader
```
@ThreadSafe
public interface IamPolicyReader
```
The IamPolicyReader converts a JSON policy into an IamPolicy.
Usage Examples
Log the number of statements in a policy downloaded from IAM.

See Also:

IamPolicy.fromJson(String)

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static IamPolicyReader`	`create()`	Create a new `IamPolicyReader`.
`IamPolicy`	`read(byte[] policy)`	Read a policy from a `byte` array.
`IamPolicy`	`read(InputStream policy)`	Read a policy from an `InputStream`.
`IamPolicy`	`read(String policy)`	Read a policy from a `String`.

- Method Detail
  - create
```
static IamPolicyReader create()
```
    Create a new IamPolicyReader.
    This method is inexpensive, allowing the creation of readers wherever they are needed.
  - read
```
IamPolicy read(String policy)
```
    Read a policy from a String.
    This only performs minimal validation on the provided policy.
    
    Throws:
    
    RuntimeException - If the provided policy is not valid JSON or is missing a minimal set of required fields.
  - read
```
IamPolicy read(InputStream policy)
```
    Read a policy from an InputStream.
    The stream must provide a UTF-8 encoded string representing the policy. This only performs minimal validation on the provided policy.
    
    Throws:
    
    RuntimeException - If the provided policy is not valid JSON or is missing a minimal set of required fields.
  - read
```
IamPolicy read(byte[] policy)
```
    Read a policy from a byte array.
    The stream must provide a UTF-8 encoded string representing the policy. This only performs minimal validation on the provided policy.
    
    Throws:
    
    RuntimeException - If the provided policy is not valid JSON or is missing a minimal set of required fields.