com.tsgrp.opencontent.core.util

Class InputStreamDataSource

java.lang.Object

com.tsgrp.opencontent.core.util.InputStreamDataSource

All Implemented Interfaces:

javax.activation.DataSource

public class InputStreamDataSource
extends java.lang.Object
implements javax.activation.DataSource

NOTE: The getInputStream method SHOULD only be called 1x on the datahandler since we are unable to reset reading this back to the beginning for many types of input streams. If code attempts to call getInputStream more than one time, the stream will TRY and reset to the beginning if the backing InputStream implementation supports resetting. If it does NOT support resetting, we will return the InputStream as is, and your calling code will have to deal with the fact that you may have a partially read or entirely read InputStream that is at the end.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DEFAULT_TYPE

Constructor Summary

Constructors

Constructor and Description
InputStreamDataSource(java.io.InputStream in) Construct a DataSource from an InputStream.
InputStreamDataSource(java.io.InputStream in, java.lang.String ctype) Construct a DataSource from an InputStream.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getContentType()
java.io.InputStream	getInputStream() Returns an InputStream.
java.lang.String	getName()
java.io.OutputStream	getOutputStream()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_TYPE

public static final java.lang.String DEFAULT_TYPE

See Also:

Constant Field Values

Constructor Detail

InputStreamDataSource

public InputStreamDataSource(java.io.InputStream in)

Construct a DataSource from an InputStream. NOTE: this getInputStream method SHOULD only be called 1x on the datahandler since we are unable to reset reading this back to the beginning for many types of input streams. If code attempts to call getInputStream more than one time, the stream will TRY and reset to the beginning if the backing InputStream implementation supports resetting. If it does NOT support resetting, we will return the InputStream as is, and your calling code will have to deal with the fact that you may have a partially read or entirely read InputStream that is at the end. The "contentType" is set to "application/octet-stream" for this constructor (see: InputStreamDataSource(InputStream, String) )

Parameters:

in - Stream to back this DataSource

InputStreamDataSource

public InputStreamDataSource(java.io.InputStream in,
                             java.lang.String ctype)

Construct a DataSource from an InputStream. NOTE: this getInputStream method SHOULD only be called 1x on the datahandler since we are unable to reset reading this back to the beginning for many types of input streams. If code attempts to call getInputStream more than one time, the stream will TRY and reset to the beginning if the backing InputStream implementation supports resetting. If it does NOT support resetting, we will return the InputStream as is, and your calling code will have to deal with the fact that you may have a partially read or entirely read InputStream that is at the end.

Parameters:

in - Stream to back this DataSource

ctype - mimetype of the data in the InputDtream

Method Detail

getContentType

public java.lang.String getContentType()

Specified by:

getContentType in interface javax.activation.DataSource

getName

public java.lang.String getName()

Specified by:

getName in interface javax.activation.DataSource

getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

Returns an InputStream. NOTE: this getInputStream method SHOULD only be called 1x on the datahandler since we are unable to reset reading this back to the beginning for many types of input streams. If code attempts to call getInputStream more than one time, the stream will TRY and reset to the beginning if the backing InputStream implementation supports resetting. If it does NOT support resetting, we will return the InputStream as is, and your calling code will have to deal with the fact that you may have a partially read or entirely read InputStream that is at the end.

Specified by:

getInputStream in interface javax.activation.DataSource

Throws:

java.io.IOException

getOutputStream

public java.io.OutputStream getOutputStream()
                                     throws java.io.IOException

Specified by:

getOutputStream in interface javax.activation.DataSource

Throws:

java.io.IOException