/*
* Copyright 1999-2011 Alibaba Group.
*
* Licensed 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 com.alibaba.dubbo.rpc.protocol.dubbo.page;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import com.alibaba.dubbo.common.URL;
import com.alibaba.dubbo.common.utils.NetUtils;
import com.alibaba.dubbo.container.page.Page;
import com.alibaba.dubbo.container.page.PageHandler;
import com.alibaba.dubbo.remoting.exchange.ExchangeChannel;
import com.alibaba.dubbo.remoting.exchange.ExchangeServer;
import com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol;
/**
* ClientsPageHandler
*
* @author william.liangf
*/
public class ClientsPageHandler implements PageHandler {
public Page handle(URL url) {
String port = url.getParameter("port");
int p = port == null || port.length() == 0 ? 0 : Integer.parseInt(port);
Collection<ExchangeServer> servers = DubboProtocol.getDubboProtocol().getServers();
ExchangeServer server = null;
StringBuilder select = new StringBuilder();
if (servers != null && servers.size() > 0) {
if (servers.size() == 1) {
server = servers.iterator().next();
String address = server.getUrl().getAddress();
select.append(" > " + NetUtils.getHostName(address) + "/" + address);
} else {
select.append(" > <select onchange=\"window.location.href='clients.html?port=' + this.value;\">");
for (ExchangeServer s : servers) {
int sp = s.getUrl().getPort();
select.append("<option value=\">");
select.append(sp);
if (p == 0 && server == null || p == sp) {
server = s;
select.append("\" selected=\"selected");
}
select.append("\">");
select.append(s.getUrl().getAddress());
select.append("</option>");
}
select.append("</select>");
}
}
List<List<String>> rows = new ArrayList<List<String>>();
if (server != null) {
Collection<ExchangeChannel> channels = server.getExchangeChannels();
for (ExchangeChannel c : channels) {
List<String> row = new ArrayList<String>();
String address = NetUtils.toAddressString(c.getRemoteAddress());
row.add(NetUtils.getHostName(address) + "/" + address);
rows.add(row);
}
}
return new Page("<a href=\"servers.html\">Servers</a>" + select.toString() + " > Clients", "Clients (" + rows.size() + ")", new String[]{"Client Address:"}, rows);
}
}