com.serotonin.mango.web.servlet

Class ImageChartServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.serotonin.mango.web.servlet.BaseInfoServlet

com.serotonin.mango.web.servlet.ImageChartServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class ImageChartServlet
extends BaseInfoServlet

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) class	ImageChartServlet.CacheElement

Field Summary

Fields

Modifier and Type	Field and Description
private static long	CACHE_PURGE_INTERVAL
private java.util.Map<java.lang.String,ImageChartServlet.CacheElement>	cachedImages
private long	lastCachePurgeTime
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
ImageChartServlet()

Method Summary

Modifier and Type	Method and Description
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
private byte[]	getImageData(java.lang.String imageInfo, javax.servlet.http.HttpServletRequest request)
private void	tryCachePurge()

Methods inherited from class com.serotonin.mango.web.servlet.BaseInfoServlet

getIntRequestParameter

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

CACHE_PURGE_INTERVAL

private static final long CACHE_PURGE_INTERVAL

See Also:

Constant Field Values

lastCachePurgeTime

private long lastCachePurgeTime

cachedImages

private final java.util.Map<java.lang.String,ImageChartServlet.CacheElement> cachedImages

Constructor Detail

ImageChartServlet

public ImageChartServlet()

Method Detail

doGet

protected void doGet(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response)
              throws java.io.IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

java.io.IOException

getImageData

private byte[] getImageData(java.lang.String imageInfo,
                            javax.servlet.http.HttpServletRequest request)
                     throws java.io.IOException

Throws:

java.io.IOException

tryCachePurge

private void tryCachePurge()