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Oracle Security Developer Tools CMS Java API Reference 10g Release 2 (10.1.2.0.2) B15564-01 |
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java.lang.Object
java.io.InputStream
java.io.FilterInputStream
oracle.security.crypto.cms.CMSInputStream
oracle.security.crypto.cms.CMSCompressedDataInputStream
A CMSCompressedDataInputStream
is used to read compressed-data
CMS objects.
A CMSCompressedDataInputStream
is essentially a input stream filter that unwraps the CMS compressed-data
structure from the data read in.
You will be able to read a detached digested-data object using the CMSCompressedDataInputStream
class but you will not be able to verify the digest.
IMPORTANT: This class processes large CMS compressed-data Objects more efficiently (Java VM memory usage) than the CMSCompressedDataContentInfo
class.
CMSInputConnector
, CMSCompressedDataInputConnector
, CMSCompressedDataContentInfo
Field Summary |
Fields inherited from class java.io.FilterInputStream |
in |
Constructor Summary | |
CMSCompressedDataInputStream(CMSInputConnector conn) Creates a CMSCompressedDataInputStream . |
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CMSCompressedDataInputStream(java.io.InputStream in) Creates a CMSCompressedDataInputStream . |
Method Summary | |
int |
available() |
AlgorithmIdentifier |
getCompressionAlgID() Returns the message compressed algorithm. |
ASN1ObjectID |
getEnclosedContentType() Returns the content type of the digested content. |
ASN1Integer |
getVersion() Deprecated. As of Phaos CMS 2.0.1, replaced by getVersionNumber() |
java.math.BigInteger |
getVersionNumber() Returns the version number of this CMS Object. |
void |
mark(int readlimit) Not supported. |
boolean |
markSupported() Always returns false</false>. |
int |
read() |
int |
read(byte[] buffer, int offset, int len) |
void |
reset() Not supported. |
long |
skip(long n) |
void |
terminate() Finish reading the digested-data structure. |
Methods inherited from class java.io.FilterInputStream |
close, read |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public CMSCompressedDataInputStream(java.io.InputStream in)
CMSCompressedDataInputStream
.in
- The underlying input stream.public CMSCompressedDataInputStream(CMSInputConnector conn)
CMSCompressedDataInputStream
.conn
- The underlying input connector.Method Detail |
public void terminate() throws java.io.IOException
digested-data
structure.
Invoke this method only after all the underlying content has been read.
terminate
in class CMSInputStream
java.io.IOException
- An I/O error occurred or some of the underlying content is still present in the input stream.public java.math.BigInteger getVersionNumber() throws java.io.IOException
java.io.IOException
- An I/O error occurred or the input is incorrectly encoded.public ASN1Integer getVersion() throws java.io.IOException
getVersionNumber()
java.io.IOException
- An I/O error occurred or the input is incorrectly encoded.public AlgorithmIdentifier getCompressionAlgID() throws java.io.IOException
java.io.IOException
- An I/O error occurred or the input is incorrectly encoded.public ASN1ObjectID getEnclosedContentType() throws java.io.IOException
getEnclosedContentType
in class CMSInputStream
java.io.IOException
- An I/O error occurred or no input has been read.public int read() throws java.io.IOException
java.io.IOException
public int read(byte[] buffer, int offset, int len) throws java.io.IOException
java.io.IOException
public int available() throws java.io.IOException
java.io.IOException
public long skip(long n) throws java.io.IOException
java.io.IOException
public boolean markSupported()
false</false>.
Returns:
false (not supported)
public void mark(int readlimit)
public void reset() throws java.io.IOException
java.io.IOException
- always(not supported)
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Oracle Security Developer Tools CMS Java API Reference 10g Release 2 (10.1.2.0.2) B15564-01 |
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