## javax.mail.util
Class ByteArrayDataSource

    java.lang.Object
      javax.mail.util.ByteArrayDataSource

All Implemented Interfaces:
  javax.activation.DataSource

    public class ByteArrayDataSource

extends java.lang.Object
implements javax.activation.DataSource

A DataSource backed by a byte array. The byte array may be passed in directly, or may be initialized from an InputStream or a String.

Since:
  JavaMail 1.4

Constructor Summary
`ByteArrayDataSource(byte[] data, java.lang.String type)` Create a ByteArrayDataSource with data from the specified byte array and with the specified MIME type.
`ByteArrayDataSource(java.io.InputStream is, java.lang.String type)` Create a ByteArrayDataSource with data from the specified InputStream and with the specified MIME type.
`ByteArrayDataSource(java.lang.String data, java.lang.String type)` Create a ByteArrayDataSource with data from the specified String and with the specified MIME type.

Method Summary
`java.lang.String` `getContentType()` Get the MIME content type of the data.
`java.io.InputStream` `getInputStream()` Return an InputStream for the data.
`java.lang.String` `getName()` Get the name of the data.
`java.io.OutputStream` `getOutputStream()` Return an OutputStream for the data.
`void` `setName(java.lang.String name)` Set the name of the data.

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

Constructor Detail

### ByteArrayDataSource

    public ByteArrayDataSource(java.io.InputStream is,
                               java.lang.String type)
                        throws java.io.IOException

  Create a ByteArrayDataSource with data from the specified InputStream and with the specified MIME type. The InputStream is read completely and the data is stored in a byte array.

  Parameters:
    `is` - the InputStream
    `type` - the MIME type
  Throws:
    `java.io.IOException` - errors reading the stream

### ByteArrayDataSource

    public ByteArrayDataSource(byte[] data,
                               java.lang.String type)

  Create a ByteArrayDataSource with data from the specified byte array and with the specified MIME type.

  Parameters:
    `data` - the data
    `type` - the MIME type

### ByteArrayDataSource

    public ByteArrayDataSource(java.lang.String data,
                               java.lang.String type)
                        throws java.io.IOException

  Create a ByteArrayDataSource with data from the specified String and with the specified MIME type. The MIME type should include a `charset` parameter specifying the charset to be used for the string. If the parameter is not included, the default charset is used.

  Parameters:
    `data` - the String
    `type` - the MIME type
  Throws:
    `java.io.IOException` - errors reading the String

Method Detail

### getInputStream

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

  Return an InputStream for the data. Note that a new stream is returned each time this method is called.

  Specified by:
    `getInputStream` in interface `javax.activation.DataSource`
  Returns:
    the InputStream
  Throws:
    `java.io.IOException` - if no data has been set

### getOutputStream

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

  Return an OutputStream for the data. Writing the data is not supported; an `IOException` is always thrown.

  Specified by:
    `getOutputStream` in interface `javax.activation.DataSource`
  Throws:
    `java.io.IOException` - always

### getContentType

    public java.lang.String getContentType()

  Get the MIME content type of the data.

  Specified by:
    `getContentType` in interface `javax.activation.DataSource`
  Returns:
    the MIME type

### getName

    public java.lang.String getName()

  Get the name of the data. By default, an empty string ("") is returned.

  Specified by:
    `getName` in interface `javax.activation.DataSource`
  Returns:
    the name of this data

### setName

    public void setName(java.lang.String name)

  Set the name of the data.

  Parameters:
    `name` - the name of this data