/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.wicket.extensions.ajax.markup.html.form.upload;
import javax.servlet.http.HttpServletRequest;
import org.apache.wicket.RequestCycle;
import org.apache.wicket.markup.html.DynamicWebResource;
import org.apache.wicket.protocol.http.WebRequest;
/**
* A resource that prints out basic statistics about the current upload. This resource is used to
* feed the progress bar information by the progress bar javascript which requests this resource
* through ajax.
*
* @author Andrew Lombardi
* @author Igor Vaynberg (ivaynberg)
*/
class UploadStatusResource extends DynamicWebResource
{
private static final long serialVersionUID = 1L;
protected ResourceState getResourceState()
{
return new UploadResourceState();
}
private static class UploadResourceState extends DynamicWebResource.ResourceState
{
/**
* status string that will be returned to javascript to be parsed
*
* uploaded count|total count|transfer rate|time remaining
*/
private String status;
/** Create a new one of these from the current request */
public UploadResourceState()
{
RequestCycle rc = RequestCycle.get();
HttpServletRequest req = ((WebRequest)rc.getRequest()).getHttpServletRequest();
UploadInfo info = UploadWebRequest.getUploadInfo(req);
if (info == null || info.getTotalBytes() < 1)
{
status = "0|0|0|0";
}
else
{
status = "" + info.getPercentageComplete() + "|" + info.getBytesUploadedString() +
"|" + info.getTotalBytesString() + "|" + info.getTransferRateString() +
"|" + info.getRemainingTimeString();
}
status = "<html>|" + status + "|</html>";
}
/**
* @see org.apache.wicket.markup.html.DynamicWebResource.ResourceState#getContentType()
*/
public String getContentType()
{
return "text/plain";
}
/**
* @see org.apache.wicket.markup.html.DynamicWebResource.ResourceState#getLength()
*/
public int getLength()
{
return status.length();
}
/**
* @see org.apache.wicket.markup.html.DynamicWebResource.ResourceState#getData()
*/
public byte[] getData()
{
return status.getBytes();
}
}
}