Source (gsyvideoplayer-androidvideocache 7.1.2)

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所有已知实现类:

ByteArraySource, HttpUrlSource
```
public interface Source
```
Source for proxy.

作者:

Alexey Danilov (danikula@gmail.com).

方法概要

所有方法实例方法抽象方法
限定符和类型	方法和说明
`void`	`close()` Closes source and release resources.
`long`	`length()` Returns length bytes or negative value if length is unknown.
`void`	`open(long offset)` Opens source.
`int`	`read(byte[] buffer)` Read data to byte buffer from source with current offset.

- 方法详细资料
  - open
```
void open(long offset)
   throws ProxyCacheException
```
    Opens source. Source should be open before using read(byte[])
    
    参数:
    
    offset - offset in bytes for source.
    
    抛出:
    
    ProxyCacheException - if error occur while opening source.
  - length
```
long length()
     throws ProxyCacheException
```
    Returns length bytes or negative value if length is unknown.
    
    返回:
    
    bytes length
    
    抛出:
    
    ProxyCacheException - if error occur while fetching source data.
  - read
```
int read(byte[] buffer)
  throws ProxyCacheException
```
    Read data to byte buffer from source with current offset.
    
    参数:
    
    buffer - a buffer to be used for reading data.
    
    返回:
    
    a count of read bytes
    
    抛出:
    
    ProxyCacheException - if error occur while reading source.
  - close
```
void close()
    throws ProxyCacheException
```
    Closes source and release resources. Every opened source should be closed.
    
    抛出:
    
    ProxyCacheException - if error occur while closing source.

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