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## org.bouncycastle.x509
Class X509StreamParser

    java.lang.Object
      org.bouncycastle.x509.X509StreamParser

All Implemented Interfaces:
  StreamParser

    public class X509StreamParser

extends java.lang.Object
implements StreamParser

This class allows access to different implementations for reading X.509 objects from streams.

A X509StreamParser is used to read a collection of objects or a single object of a certain X.509 object structure. E.g. one X509StreamParser can read certificates, another one CRLs, certification paths, attribute certificates and so on. The kind of object structure is specified with the `algorithm` parameter to the `getInstance` methods.

Implementations must implement the `X509StreamParserSpi`.

Method Summary
`static X509StreamParser` | `getInstance(java.lang.String type)` Generates a StreamParser object that implements the specified type.
`static X509StreamParser` | `getInstance(java.lang.String type, java.security.Provider provider)` Generates a X509StreamParser object for the specified type from the specified provider.
`static X509StreamParser` | `getInstance(java.lang.String type, java.lang.String provider)` Generates a X509StreamParser object for the specified type from the specified provider.
`java.security.Provider` | `getProvider()`
`void` | `init(byte[] data)`
`void` | `init(java.io.InputStream stream)`
`java.lang.Object` | `read()`
`java.util.Collection` | `readAll()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### getInstance

    public static X509StreamParser getInstance(java.lang.String type)
                                        throws NoSuchParserException

  Generates a StreamParser object that implements the specified type. If the default provider package provides an implementation of the requested type, an instance of StreamParser containing that implementation is returned. If the type is not available in the default package, other packages are searched.

  Parameters:
    `type` - The name of the requested X.509 object type.
  Returns:
    a StreamParser object for the specified type.
  Throws:
    `NoSuchParserException` - if the requested type is not available in the default provider package or any of the other provider packages that were searched.

### getInstance

    public static X509StreamParser getInstance(java.lang.String type,
                                               java.lang.String provider)
                                        throws NoSuchParserException,
                                               java.security.NoSuchProviderException

  Generates a X509StreamParser object for the specified type from the specified provider.

  Parameters:
    `type` - the name of the requested X.509 object type.
    `provider` - the name of the provider.
  Returns:
    a X509StreamParser object for the specified type.
  Throws:
    `NoSuchParserException` - if the type is not available from the specified provider.
    `java.security.NoSuchProviderException` - if the provider can not be found.
  See Also:
    `Provider`

### getInstance

    public static X509StreamParser getInstance(java.lang.String type,
                                               java.security.Provider provider)
                                        throws NoSuchParserException

  Generates a X509StreamParser object for the specified type from the specified provider.

  Parameters:
    `type` - the name of the requested X.509 object type.
    `provider` - the Provider to use.
  Returns:
    a X509StreamParser object for the specified type.
  Throws:
    `NoSuchParserException` - if the type is not available from the specified provider.
  See Also:
    `Provider`

### getProvider

    public java.security.Provider getProvider()

### init

    public void init(java.io.InputStream stream)

### init

    public void init(byte[] data)

### read

    public java.lang.Object read()
                          throws StreamParsingException

  Specified by:
    `read` in interface `StreamParser`
  Throws:
    `StreamParsingException`

### readAll

    public java.util.Collection readAll()
                                 throws StreamParsingException

  Specified by:
    `readAll` in interface `StreamParser`
  Throws:
    `StreamParsingException`

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