com.haulmont.cuba.web.widgets

Class CubaFileDownloader

java.lang.Object

com.vaadin.server.AbstractClientConnector

com.vaadin.server.AbstractExtension

com.haulmont.cuba.web.widgets.CubaFileDownloader

All Implemented Interfaces:

com.vaadin.event.MethodEventSource, com.vaadin.server.ClientConnector, com.vaadin.server.Extension, com.vaadin.shared.Connector, java.io.Serializable

public class CubaFileDownloader
extends com.vaadin.server.AbstractExtension

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CubaFileDownloader.FileNotFoundExceptionListener

Nested classes/interfaces inherited from class com.vaadin.server.AbstractClientConnector

com.vaadin.server.AbstractClientConnector.IncorrectConcurrentAccessHandler

Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector

com.vaadin.server.ClientConnector.AttachEvent, com.vaadin.server.ClientConnector.AttachListener, com.vaadin.server.ClientConnector.ConnectorErrorEvent, com.vaadin.server.ClientConnector.DetachEvent, com.vaadin.server.ClientConnector.DetachListener

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DOWNLOAD_RESOURCE_PREFIX
protected CubaFileDownloader.FileNotFoundExceptionListener	fileNotFoundExceptionListener
protected boolean	overrideContentType
static java.lang.String	VIEW_RESOURCE_PREFIX

Constructor Summary

Constructors

Constructor and Description
CubaFileDownloader()

Method Summary

Modifier and Type	Method and Description
void	downloadFile(com.vaadin.server.Resource resource)
void	extend(com.vaadin.server.AbstractClientConnector target)
CubaFileDownloader.FileNotFoundExceptionListener	getFileNotFoundExceptionListener()
boolean	handleConnectorRequest(com.vaadin.server.VaadinRequest request, com.vaadin.server.VaadinResponse response, java.lang.String path)
boolean	isOverrideContentType() Checks whether the content type should be overridden.
protected boolean	isSafariOrIOS()
void	setFileNotFoundExceptionListener(CubaFileDownloader.FileNotFoundExceptionListener notFoundExceptionListener)
void	setOverrideContentType(boolean overrideContentType) Sets whether the content type of served resources should be overridden to application/octet-stream to reduce the risk of a browser plugin choosing to display the resource instead of downloading it.
void	viewDocument(com.vaadin.server.Resource resource)

Methods inherited from class com.vaadin.server.AbstractExtension

getParent, getSupportedParentType, remove, setParent

Methods inherited from class com.vaadin.server.AbstractClientConnector

addAttachListener, addDetachListener, addExtension, addListener, addListener, addListener, addMethodInvocationToQueue, attach, beforeClientResponse, createState, detach, encodeState, equals, fireEvent, getAllChildrenIterable, getConnectorId, getErrorHandler, getExtensions, getIncorrectConcurrentAccessHandler, getListeners, getResource, getRpcManager, getRpcProxy, getSession, getState, getState, getStateType, getUI, hashCode, hasListeners, isAttached, isConnectorEnabled, isThis, markAsDirty, markAsDirtyRecursive, registerRpc, registerRpc, removeAttachListener, removeDetachListener, removeExtension, removeListener, removeListener, removeListener, removeListener, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setConnectorResource, setErrorHandler, setIncorrectConcurrentAccessHandler, setResource, updateDiffstate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.server.ClientConnector

addAttachListener, addDetachListener, attach, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, getRpcManager, getStateType, getUI, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Field Detail

DOWNLOAD_RESOURCE_PREFIX

public static final java.lang.String DOWNLOAD_RESOURCE_PREFIX

See Also:

Constant Field Values

VIEW_RESOURCE_PREFIX

public static final java.lang.String VIEW_RESOURCE_PREFIX

See Also:

Constant Field Values

overrideContentType

protected boolean overrideContentType

fileNotFoundExceptionListener

protected CubaFileDownloader.FileNotFoundExceptionListener fileNotFoundExceptionListener

Constructor Detail

CubaFileDownloader

public CubaFileDownloader()

Method Detail

downloadFile

public void downloadFile(com.vaadin.server.Resource resource)

viewDocument

public void viewDocument(com.vaadin.server.Resource resource)

setOverrideContentType

public void setOverrideContentType(boolean overrideContentType)

Sets whether the content type of served resources should be overridden to application/octet-stream to reduce the risk of a browser plugin choosing to display the resource instead of downloading it. This is by default set to true.

Please note that this only affects Connector resources (e.g. FileResource and ClassResource) but not other resource types (e.g. ExternalResource or ThemeResource).

Parameters:

overrideContentType - true to override the content type if possible; false to use the original content type.

isOverrideContentType

public boolean isOverrideContentType()

Checks whether the content type should be overridden.

Returns:

true if the content type will be overridden when possible; false if the original content type will be used.

See Also:

setOverrideContentType(boolean)

extend

public void extend(com.vaadin.server.AbstractClientConnector target)

Overrides:

extend in class com.vaadin.server.AbstractExtension

handleConnectorRequest

public boolean handleConnectorRequest(com.vaadin.server.VaadinRequest request,
                                      com.vaadin.server.VaadinResponse response,
                                      java.lang.String path)
                               throws java.io.IOException

Specified by:

handleConnectorRequest in interface com.vaadin.server.ClientConnector

Overrides:

handleConnectorRequest in class com.vaadin.server.AbstractClientConnector

Throws:

java.io.IOException

isSafariOrIOS

protected boolean isSafariOrIOS()

getFileNotFoundExceptionListener

public CubaFileDownloader.FileNotFoundExceptionListener getFileNotFoundExceptionListener()

setFileNotFoundExceptionListener

public void setFileNotFoundExceptionListener(CubaFileDownloader.FileNotFoundExceptionListener notFoundExceptionListener)