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org.mentawai.core
Class StreamConsequence  

java.lang.Object
  org.mentawai.core.StreamConsequence

All Implemented Interfaces:

Consequence

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public class StreamConsequence

extends java.lang.Object

implements Consequence

A web-based consequence that gets a ready-to-use input stream from the output of the action, get the contents from that input stream and flush them to the servlet output stream. Very useful for loading images from a database, downloads and other resources that the programmer may want to protect from direct access from the client. This class is thread-safe.

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Field Summary
private  java.lang.String	content_disposition_key
static java.lang.String	CONTENT_DISPOSITION_KEY           The default key ("contentDisposition") to look for in the action output.
private  java.lang.String	content_length_key
static java.lang.String	CONTENT_LENGTH_KEY           The default key ("contentLength") to look for in the action output.
private  java.lang.String	contentType
private  java.lang.String	stream_key
static java.lang.String	STREAM_KEY           The default key ("stream") to look for in the action output.

 

Constructor Summary

StreamConsequence(java.lang.String contentType)           Creates a new instance of the StreamConsequence class, with the given content-type

StreamConsequence(java.lang.String contentType, java.lang.String stream_key)           Creates a new instance of the StreamConsequence class, with the given content-type and key.

StreamConsequence(java.lang.String contentType, java.lang.String stream_key, java.lang.String content_disposition_key)           Creates a new instance of the StreamConsequence class, with the given content-type and key.

StreamConsequence(java.lang.String contentType, java.lang.String stream_key, java.lang.String content_disposition_key, java.lang.String content_length_key)           Creates a new instance of the StreamConsequence class, with the given content-type and key.

 

Method Summary
protected  void	defineHeader(javax.servlet.http.HttpServletResponse res, Output output)
void	execute(Action a, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)           Executes the action, reading from the input stream the data that has to be flushed into the servlet output stream.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

STREAM_KEY

public static final java.lang.String STREAM_KEY

The default key ("stream") to look for in the action output.

See Also:

Constant Field Values

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CONTENT_DISPOSITION_KEY

public static final java.lang.String CONTENT_DISPOSITION_KEY

The default key ("contentDisposition") to look for in the action output.

See Also:

Constant Field Values

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CONTENT_LENGTH_KEY

public static final java.lang.String CONTENT_LENGTH_KEY

The default key ("contentLength") to look for in the action output.

See Also:

Constant Field Values

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contentType

private java.lang.String contentType

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stream_key

private java.lang.String stream_key

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content_disposition_key

private java.lang.String content_disposition_key

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content_length_key

private java.lang.String content_length_key

Constructor Detail

StreamConsequence

public StreamConsequence(java.lang.String contentType)

Creates a new instance of the StreamConsequence class, with the given content-type

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StreamConsequence

public StreamConsequence(java.lang.String contentType,
                         java.lang.String stream_key)

Creates a new instance of the StreamConsequence class, with the given content-type and key.

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StreamConsequence

public StreamConsequence(java.lang.String contentType,
                         java.lang.String stream_key,
                         java.lang.String content_disposition_key)

Creates a new instance of the StreamConsequence class, with the given content-type and key.

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StreamConsequence

public StreamConsequence(java.lang.String contentType,
                         java.lang.String stream_key,
                         java.lang.String content_disposition_key,
                         java.lang.String content_length_key)

Creates a new instance of the StreamConsequence class, with the given content-type and key.

Method Detail

execute

public void execute(Action a,
                    javax.servlet.http.HttpServletRequest req,
                    javax.servlet.http.HttpServletResponse res)
             throws ConsequenceException

Executes the action, reading from the input stream the data that has to be flushed into the servlet output stream.

Specified by:

execute in interface Consequence

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defineHeader

protected void defineHeader(javax.servlet.http.HttpServletResponse res,
                            Output output)

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Overview  Package   Class  Use  Deprecated  Index
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SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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