/*
* 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.monitor.simple.pages;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.alibaba.dubbo.common.URL;
import com.alibaba.dubbo.container.page.Page;
import com.alibaba.dubbo.container.page.PageHandler;
import com.alibaba.dubbo.monitor.MonitorService;
import com.alibaba.dubbo.monitor.simple.CountUtils;
import com.alibaba.dubbo.monitor.simple.SimpleMonitorService;
/**
* StatisticsPageHandler
*
* @author william.liangf
*/
public class StatisticsPageHandler implements PageHandler {
public Page handle(URL url) {
String service = url.getParameter("service");
if (service == null || service.length() == 0) {
throw new IllegalArgumentException("Please input service parameter.");
}
String date = url.getParameter("date");
if (date == null || date.length() == 0) {
date = new SimpleDateFormat("yyyyMMdd").format(new Date());
}
String expand = url.getParameter("expand");
List<List<String>> rows = new ArrayList<List<String>>();
String directory = SimpleMonitorService.getInstance().getStatisticsDirectory();
String filename = directory + "/" + date + "/" + service;
File serviceDir = new File(filename);
if (serviceDir.exists()) {
File[] methodDirs = serviceDir.listFiles();
for (File methodDir : methodDirs) {
long[] statistics = newStatistics();
Map<String, long[]> expandMap = new HashMap<String, long[]>();
File[] consumerDirs = methodDir.listFiles();
for (File consumerDir : consumerDirs) {
long[] expandStatistics = null;
if (MonitorService.CONSUMER.equals(expand)) {
expandStatistics = newStatistics();
expandMap.put(consumerDir.getName(), expandStatistics);
}
File[] providerDirs = consumerDir.listFiles();
for (File providerDir : providerDirs) {
if (MonitorService.PROVIDER.equals(expand)) {
expandStatistics = newStatistics();
expandMap.put(providerDir.getName(), expandStatistics);
}
appendStatistics(providerDir, statistics);
if (expandStatistics != null) {
appendStatistics(providerDir, expandStatistics);
}
}
}
rows.add(toRow(methodDir.getName(), statistics));
if (expandMap != null && expandMap.size() > 0) {
for (Map.Entry<String, long[]> entry : expandMap.entrySet()) {
String node = MonitorService.CONSUMER.equals(expand) ? "<--" : "-->";
rows.add(toRow(" |" + node + " " + entry.getKey(), entry.getValue()));
}
}
}
}
StringBuilder nav = new StringBuilder();
nav.append("<a href=\"services.html\">Services</a> > ");
nav.append(service);
nav.append(" > <a href=\"providers.html?service=");
nav.append(service);
nav.append("\">Providers</a> | <a href=\"consumers.html?service=");
nav.append(service);
nav.append("\">Consumers</a> | Statistics | <a href=\"charts.html?service=");
nav.append(service);
nav.append("&date=");
nav.append(date);
nav.append("\">Charts</a> > <input type=\"text\" style=\"width: 65px;\" name=\"date\" value=\"");
nav.append(date);
nav.append("\" onkeyup=\"if (event.keyCode == 10 || event.keyCode == 13) {window.location.href='statistics.html?service=");
nav.append(service);
if (expand != null && expand.length() > 0) {
nav.append("&expand=");
nav.append(expand);
}
nav.append("&date=' + this.value;}\" /> > ");
if (! MonitorService.PROVIDER.equals(expand) && ! MonitorService.CONSUMER.equals(expand)) {
nav.append("Summary");
} else {
nav.append("<a href=\"statistics.html?service=");
nav.append(service);
nav.append("&date=");
nav.append(date);
nav.append("\">Summary</a>");
}
if (MonitorService.PROVIDER.equals(expand)) {
nav.append(" | +Provider");
} else {
nav.append(" | <a href=\"statistics.html?service=");
nav.append(service);
nav.append("&date=");
nav.append(date);
nav.append("&expand=provider\">+Provider</a>");
}
if (MonitorService.CONSUMER.equals(expand)) {
nav.append(" | +Consumer");
} else {
nav.append(" | <a href=\"statistics.html?service=");
nav.append(service);
nav.append("&date=");
nav.append(date);
nav.append("&expand=consumer\">+Consumer</a>");
}
return new Page(nav.toString(), "Statistics (" + rows.size() + ")",
new String[] { "Method:", "Success", "Failure", "Avg Elapsed (ms)",
"Max Elapsed (ms)", "Max Concurrent" }, rows);
}
private long[] newStatistics() {
return new long[10];
}
private void appendStatistics(File providerDir, long[] statistics) {
statistics[0] += CountUtils.sum(new File(providerDir, MonitorService.CONSUMER + "." + MonitorService.SUCCESS));
statistics[1] += CountUtils.sum(new File(providerDir, MonitorService.PROVIDER + "." + MonitorService.SUCCESS));
statistics[2] += CountUtils.sum(new File(providerDir, MonitorService.CONSUMER + "." + MonitorService.FAILURE));
statistics[3] += CountUtils.sum(new File(providerDir, MonitorService.PROVIDER + "." + MonitorService.FAILURE));
statistics[4] += CountUtils.sum(new File(providerDir, MonitorService.CONSUMER + "." + MonitorService.ELAPSED));
statistics[5] += CountUtils.sum(new File(providerDir, MonitorService.PROVIDER + "." + MonitorService.ELAPSED));
statistics[6] = Math.max(statistics[6], CountUtils.max(new File(providerDir, MonitorService.CONSUMER + "." + MonitorService.MAX_ELAPSED)));
statistics[7] = Math.max(statistics[7], CountUtils.max(new File(providerDir, MonitorService.PROVIDER + "." + MonitorService.MAX_ELAPSED)));
statistics[8] = Math.max(statistics[8], CountUtils.max(new File(providerDir, MonitorService.CONSUMER + "." + MonitorService.MAX_CONCURRENT)));
statistics[9] = Math.max(statistics[9], CountUtils.max(new File(providerDir, MonitorService.PROVIDER + "." + MonitorService.MAX_CONCURRENT)));
}
private List<String> toRow(String name, long[] statistics) {
List<String> row = new ArrayList<String>();
row.add(name);
row.add(String.valueOf(statistics[0]) + " --> " + String.valueOf(statistics[1]));
row.add(String.valueOf(statistics[2]) + " --> " + String.valueOf(statistics[3]));
row.add(String.valueOf(statistics[0] == 0 ? 0 : statistics[4] / statistics[0])
+ " --> " + String.valueOf(statistics[1] == 0 ? 0 : statistics[5] / statistics[1]));
row.add(String.valueOf(statistics[6]) + " --> " + String.valueOf(statistics[7]));
row.add(String.valueOf(statistics[8]) + " --> " + String.valueOf(statistics[9]));
return row;
}
}