DataSourceStream (JGlobus 2.1.0 API)

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java.lang.Object
- org.globus.ftp.DataSourceStream

All Implemented Interfaces:

DataSource
```
public class DataSourceStream
extends Object
implements DataSource
```
Reference implementation of DataSource. It can be used with non-parallel transfers. It cannot be used with Extended Block Mode because it is not thread safe.

Field Summary

Fields
Modifier and Type Field and Description

protected int bufferSize

protected InputStream in

protected long totalRead

Constructor Summary

Constructors
Constructor and Description

DataSourceStream(InputStream in)

DataSourceStream(InputStream in, int bufferSize)

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`close()` Closes this data source and releases any system resources associated with this source.
`Buffer`	`read()` Reads a data buffer from this data source.
`long`	`totalSize()` Optional operation.

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

- Field Detail
  - in
```
protected InputStream in
```
  - bufferSize
```
protected int bufferSize
```
  - totalRead
```
protected long totalRead
```
- Constructor Detail
  - DataSourceStream
```
public DataSourceStream(InputStream in)
```
  - DataSourceStream
```
public DataSourceStream(InputStream in,
                int bufferSize)
```
- Method Detail
  - read
```
public Buffer read()
            throws IOException
```
    Description copied from interface: DataSource
    
    Reads a data buffer from this data source.
    
    Specified by:
    
    read in interface DataSource
    
    Returns:
    The data buffer read. Null, if there is no more data to be read.
    
    Throws:
    
    IOException - if an I/O error occurs.
  - close
```
public void close()
           throws IOException
```
    Description copied from interface: DataSource
    
    Closes this data source and releases any system resources associated with this source.
    
    Specified by:
    
    close in interface DataSource
    
    Throws:
    
    IOException - if an I/O error occurs.
  - totalSize
```
public long totalSize()
```
    Description copied from interface: DataSource
    
    Optional operation. Returns the total size, in bytes, of the data in this source. If the implementation is not able to provide a total size for the data source, it should return -1
    
    Specified by:
    
    totalSize in interface DataSource

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