nextapp.echo.webcontainer.sync.property.ServedImageReferencePeer Maven / Gradle / Ivy
/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo.webcontainer.sync.property;
import nextapp.echo.app.Extent;
import nextapp.echo.app.ImageReference;
import nextapp.echo.app.serial.SerialContext;
import nextapp.echo.app.serial.SerialException;
import nextapp.echo.app.serial.property.ExtentPeer;
import nextapp.echo.app.serial.property.ImageReferencePeer;
import nextapp.echo.app.util.Context;
import nextapp.echo.webcontainer.UserInstance;
import nextapp.echo.webcontainer.WebContainerServlet;
import nextapp.echo.webcontainer.service.ImageService;
import org.w3c.dom.Element;
import org.w3c.dom.Text;
/**
* ImageReferencePeer implementation to provide StreamImages to remote web clients.
*/
public class ServedImageReferencePeer implements ImageReferencePeer {
static {
WebContainerServlet.getServiceRegistry().add(ImageService.INSTANCE);
}
/**
* @see nextapp.echo.app.serial.property.ImageReferencePeer#getImageUrl(nextapp.echo.app.util.Context,
* nextapp.echo.app.ImageReference)
*/
public String getImageUrl(Context context, ImageReference imageReference)
throws SerialException {
UserInstance userInstance = (UserInstance) context.get(UserInstance.class);
userInstance.getIdTable().register(imageReference);
return "!I!" + imageReference.getRenderId();
}
/**
* @see nextapp.echo.app.serial.SerialPropertyPeer#toProperty(nextapp.echo.app.util.Context,
* java.lang.Class, org.w3c.dom.Element)
*/
public Object toProperty(Context context, Class objectClass, Element propertyElement)
throws SerialException {
throw new UnsupportedOperationException();
}
/**
* @see nextapp.echo.app.serial.SerialPropertyPeer#toXml(nextapp.echo.app.util.Context,
* java.lang.Class, org.w3c.dom.Element, java.lang.Object)
*/
public void toXml(Context context, Class objectClass, Element propertyElement, Object propertyValue)
throws SerialException {
SerialContext serialContext = (SerialContext) context.get(SerialContext.class);
ImageReference imageReference = (ImageReference) propertyValue;
propertyElement.setAttribute("t",
(serialContext.getFlags() & SerialContext.FLAG_RENDER_SHORT_NAMES) == 0 ? "ImageReference" : "I");
Text urlText = serialContext.getDocument().createTextNode(getImageUrl(context, imageReference));
Extent width = imageReference.getWidth();
Extent height = imageReference.getHeight();
if (width == null && height == null) {
propertyElement.appendChild(urlText);
} else {
Element iElement = serialContext.getDocument().createElement("i");
iElement.appendChild(urlText);
if (width != null ) {
iElement.setAttribute("w", ExtentPeer.toString(width));
}
if (height != null) {
iElement.setAttribute("h", ExtentPeer.toString(height));
}
propertyElement.appendChild(iElement);
}
}
}