/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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.citrus.webx.handler.component;
import static com.alibaba.citrus.util.CollectionUtil.*;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import com.alibaba.citrus.service.configuration.ProductionModeAware;
import com.alibaba.citrus.util.ArrayUtil;
import com.alibaba.citrus.util.HumanReadableSize;
import com.alibaba.citrus.util.SystemUtil;
import com.alibaba.citrus.util.internal.webpagelite.PageComponent;
import com.alibaba.citrus.util.internal.webpagelite.PageComponentRegistry;
import com.alibaba.citrus.webx.handler.RequestHandlerContext;
import com.alibaba.citrus.webx.handler.support.AbstractVisitor;
import com.alibaba.citrus.webx.util.WebxUtil;
import org.springframework.core.SpringVersion;
/**
* 显示基本的系统信息。
*
* @author Michael Zhou
*/
public class SystemInfoComponent extends PageComponent implements ProductionModeAware {
private final KeyValuesComponent keyValuesComponent;
private boolean productionMode;
public SystemInfoComponent(PageComponentRegistry registry, String componentPath,
KeyValuesComponent keyValuesComponent) {
super(registry, componentPath);
this.keyValuesComponent = keyValuesComponent;
}
public void setProductionMode(boolean productionMode) {
this.productionMode = productionMode;
}
public void visitTemplate(RequestHandlerContext context) {
getTemplate().accept(new SystemInfoVisitor(context));
}
@SuppressWarnings("unused")
private class SystemInfoVisitor extends AbstractVisitor {
public SystemInfoVisitor(RequestHandlerContext context) {
super(context, SystemInfoComponent.this);
}
public void visitSysinfo() {
Map<String, Object> keyValues = createLinkedHashMap();
// Webx info
keyValues.put("Webx Version", WebxUtil.getWebxVersion());
keyValues.put("Spring Version", SpringVersion.getVersion());
keyValues.put("Servlet API Version", WebxUtil.getServletApiVersion(context.getServletContext()));
keyValues.put("Running Mode", productionMode ? "Production Mode" : "Development Mode");
// Java info
keyValues.put("Java", ArrayUtil.arrayToMap(new Object[][] { //
{ "Vendor", SystemUtil.getJavaInfo().getVendor() }, //
{ "Version", SystemUtil.getJavaInfo().getVersion() }, //
}, String.class, String.class));
keyValues.put("Java Runtime", ArrayUtil.arrayToMap(new Object[][] { //
{ "Name", SystemUtil.getJavaRuntimeInfo().getName() }, //
{ "Version", SystemUtil.getJavaRuntimeInfo().getVersion() }, //
{ "Home", SystemUtil.getJavaRuntimeInfo().getHomeDir() }, //
}, String.class, String.class));
keyValues.put("Java Spec.", ArrayUtil.arrayToMap(new Object[][] { //
{ "Name", SystemUtil.getJavaSpecInfo().getName() }, //
{ "Vendor", SystemUtil.getJavaSpecInfo().getVendor() }, //
{ "Version", SystemUtil.getJavaSpecInfo().getVersion() }, //
}, String.class, String.class));
keyValues.put("JVM", ArrayUtil.arrayToMap(new Object[][] { //
{ "Name", SystemUtil.getJvmInfo().getName() }, //
{ "Vendor", SystemUtil.getJvmInfo().getVendor() }, //
{ "Version", SystemUtil.getJvmInfo().getVersion() }, //
{ "Info", SystemUtil.getJvmInfo().getInfo() }, //
}, String.class, String.class));
keyValues.put("JVM Spec.", ArrayUtil.arrayToMap(new Object[][] { //
{ "Name", SystemUtil.getJvmSpecInfo().getName() }, //
{ "Vendor", SystemUtil.getJvmSpecInfo().getVendor() }, //
{ "Version", SystemUtil.getJvmSpecInfo().getVersion() }, //
}, String.class, String.class));
// OS info
keyValues.put("OS", String.format("%s %s %s", SystemUtil.getOsInfo().getName(), SystemUtil.getOsInfo()
.getArch(), SystemUtil.getOsInfo().getVersion()));
keyValues.put("File Encoding", SystemUtil.getOsInfo().getFileEncoding());
keyValues.put("Host Name", SystemUtil.getHostInfo().getName());
keyValues.put("Host Address", SystemUtil.getHostInfo().getAddress());
// IPs
try {
Map<String, List<String>> networkAddresses = createTreeMap();
for (Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); e.hasMoreElements(); ) {
NetworkInterface networkInterface = e.nextElement();
String name = networkInterface.getDisplayName();
List<String> addresses = createLinkedList();
for (Enumeration<InetAddress> e2 = networkInterface.getInetAddresses(); e2.hasMoreElements(); ) {
addresses.add(e2.nextElement().getHostAddress());
}
networkAddresses.put(name, addresses);
}
keyValues.put("Server IPs", networkAddresses);
} catch (Exception e) {
keyValues.put("Server IPs", e.getMessage());
}
// Memory
Map<String, String> memory = createLinkedHashMap();
memory.put("Free", formatMemory(Runtime.getRuntime().freeMemory()));
memory.put("Total", formatMemory(Runtime.getRuntime().totalMemory()));
memory.put("Maximum", formatMemory(Runtime.getRuntime().maxMemory()));
keyValues.put("Memory", memory);
keyValuesComponent.visitTemplate(context, keyValues);
}
private String formatMemory(long memory) {
return String.format("%s (%,d)", new HumanReadableSize(memory), memory);
}
}
}