📄 uploadstatusresource.java
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/* * 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(); } }}⌨️ 快捷键说明
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