nextapp.echo.app.HttpImageReference 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.app;
/**
* A reference to an image that may be retrieved through an HTTP request.
*/
public class HttpImageReference
implements ImageReference {
/** Serial Version UID. */
private static final long serialVersionUID = 20070101L;
private String uri;
private Extent width, height;
private String id;
/**
* Creates a reference to an image at the specified URI of unknown size.
*
* @param uri a URI from which the image data may be obtained
*/
public HttpImageReference(String uri) {
this(uri, null, null);
}
/**
* Creates a reference to an image at the specified URI of the given width
* and height. If the image is not of the given width and height, it will
* be scaled to the given width and height.
*
* @param uri a URI from which the image data may be obtained
* @param width The width at which to render the image
* @param height The height at which to render the image
*/
public HttpImageReference(String uri, Extent width, Extent height) {
super();
this.uri = uri;
this.width = width;
this.height = height;
id = ApplicationInstance.generateSystemId();
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object o) {
if (!(o instanceof HttpImageReference)) {
return false;
}
HttpImageReference that = (HttpImageReference) o;
if (!(this.uri == that.uri || (this.uri != null && this.uri.equals(that.uri)))) {
return false;
}
if (!(this.width == that.width || (this.width != null && this.width.equals(that.width)))) {
return false;
}
if (!(this.height == that.height || (this.height != null && this.height.equals(that.height)))) {
return false;
}
return true;
}
/**
* @see nextapp.echo.app.ImageReference#getHeight()
*/
public Extent getHeight() {
return height;
}
/**
* @see nextapp.echo.app.RenderIdSupport#getRenderId()
*/
public String getRenderId() {
return id;
}
/**
* Returns the URI from which the image may be obtained.
*
* @return the URI of the image
*/
public String getUri() {
return uri;
}
/**
* @see nextapp.echo.app.ImageReference#getWidth()
*/
public Extent getWidth() {
return width;
}
}