AttachmentCache

java.lang.Object
- com.sodius.mdw.metamodel.doors.richtext.AttachmentCache

All Implemented Interfaces:

AttachmentResolver, AttachmentSizeProvider
```
public class AttachmentCache
extends Object
implements AttachmentResolver, AttachmentSizeProvider
```
Stores attachments into temporary files so they can be accessed in a second step.

Since:

3.4.0

Constructor Summary

Constructors
Constructor and Description
`AttachmentCache(AttachmentResolver resolver)` Instantiates a cache with an `AttachmentResolver` that will be used to access attachment content registered with the `add()` method.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(Attachment attachment)` Stores in a temporary file the specified attachment content.
`void`	`addAll(Collection<Attachment> attachments)` Stores in temporary files the specified attachments content.
`void`	`dispose()` Deletes all temporary files used to store the registered attachments.
`InputStream`	`getInputStream(Attachment attachment)` Returns a stream to read the content of the specified attachment.
`long`	`getSize(Attachment attachment)` Returns the size of the logical attachment, i.e.

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

- Constructor Detail
  - AttachmentCache
```
public AttachmentCache(AttachmentResolver resolver)
```
    Instantiates a cache with an AttachmentResolver that will be used to access attachment content registered with the add() method.
    
    Parameters:
    
    resolver - the resolver used to access attachment content registered with the add() method.
- Method Detail
  - add
```
public void add(Attachment attachment)
         throws IOException
```
    Stores in a temporary file the specified attachment content.
    
    Parameters:
    
    attachment - an attachment whose content is to be stored.
    
    Throws:
    
    IOException - if the attachment content cannot be read.
  - addAll
```
public void addAll(Collection<Attachment> attachments)
            throws IOException
```
    Stores in temporary files the specified attachments content.
    
    Parameters:
    
    attachments - attachments whose content is to be stored.
    
    Throws:
    
    IOException - if an attachment content cannot be read.
  - getInputStream
```
public InputStream getInputStream(Attachment attachment)
                           throws IOException
```
    Description copied from interface: AttachmentResolver
    
    Returns a stream to read the content of the specified attachment.
    
    Specified by:
    
    getInputStream in interface AttachmentResolver
    
    Parameters:
    
    attachment - the logical attachment for which content is to be accessed.
    
    Returns:
    
    a stream to access the content of the attachment
    
    Throws:
    
    IOException - an exception if the physical content of the attachment cannot be found or if it failed to be accessed.
  - getSize
```
public long getSize(Attachment attachment)
```
    Description copied from interface: AttachmentSizeProvider
    
    Returns the size of the logical attachment, i.e. the number of bytes of its content.
    
    Specified by:
    
    getSize in interface AttachmentSizeProvider
    
    Parameters:
    
    attachment - the attachment for which for size is to determine.
    
    Returns:
    
    the number of bytes of the attachment content, or 0 if the size is unknown.
  - dispose
```
public void dispose()
```
    Deletes all temporary files used to store the registered attachments.
    
    Specified by:
    
    dispose in interface AttachmentResolver

Class AttachmentCache

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AttachmentCache

Method Detail

add

addAll

getInputStream

getSize

dispose