org.nutz.web.WebLauncher Maven / Gradle / Ivy
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Nutz, which is a collections of lightweight frameworks, each of them can be used independently
package org.nutz.web;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.security.ProtectionDomain;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.nutz.json.Json;
import org.nutz.lang.Encoding;
import org.nutz.lang.Files;
import org.nutz.lang.Lang;
import org.nutz.lang.Streams;
import org.nutz.lang.Strings;
import org.nutz.lang.util.CmdParams;
import org.nutz.log.Log;
import org.nutz.log.Logs;
/**
* 一个 Web 服务的启动器
*
* @author zozoh([email protected])
* @pw
*/
public class WebLauncher {
private static final Log log = Logs.get();
public static void main(String[] args) {
start(args);
}
/**
* 执行启动的主函数，接受一个参数，为 web 服务器的配置文件路径。如果没有这个参数，默认在 classpath 下寻找
* "web.properties" 文件。
*
* 这个文件遵循 Nutz 多行属性文件规范，同时必须具备如下的键:
*
* - "app-root" - 应用的根路径，比如 "~/workspace/git/danoo/strato/domain/ROOT"
*
- "app-port" - 应用监听的端口，比如 8080
*
- "app-rs" - 应用静态资源的地址前缀，比如 "http://localhost/strato"，或者 "/rs" 等
*
- "app-classpath" - 应用的类路径，可多行
*
- "admin-port" - 应用的管理端口，比如 8081
*
* 这个文件的例子，请参看源码 conf 目录下的 web.properties
*
* @param args
* 接受一个参数作为 web 服务器的配置文件路径
*/
public static void start(String... args) {
WebConfig conf = null;
String self = selfPath();
if (self != null && checkWebXml(self)) {
InputStream ins = WebLauncher.class.getClassLoader().getResourceAsStream("web.properties");
if (ins == null) {
log.info("web.properties not found , using cmdline args");
conf = new WebConfig(new StringReader(""));
} else {
log.info("web.properties found");
try {
conf = new WebConfig(new InputStreamReader(ins, Encoding.UTF8));
}
catch (UnsupportedEncodingException e) {
throw Lang.impossible();
}
}
conf.put("war", self);
conf.put("web-xml", self + "/WEB-INF/web.xml");
CmdParams params = CmdParams.parse(args, null);
conf.put(WebConfig.APP_PORT, params.get("port", conf.get(WebConfig.APP_PORT, "8080")));
conf.put(WebConfig.BIND_ADDRESS, params.get("bind", conf.get(WebConfig.BIND_ADDRESS, "0.0.0.0")));
conf.put(WebConfig.APP_CLASSPATH, params.get("cp", conf.get(WebConfig.APP_CLASSPATH, "./conf/")));
}
if (conf == null) {
String path = Strings.sBlank(Lang.first(args), Webs.CONF_PATH);
File f = Files.findFile(path);
if (f == null) {
throw new RuntimeException(new FileNotFoundException(path));
} else {
log.infof("launch by '%s'", f);
Reader r = Streams.fileInr(f);
conf = new WebConfig(r);
}
}
final WebServer server = new WebServer(conf);
server.run();
log.info("Server is down!");
}
private static boolean checkWebXml(String self) {
File f = new File(self);
ZipFile zip = null;
try {
zip = new ZipFile(f);
return null != zip.getEntry("WEB-INF/web.xml");
} catch (Exception e) {
return false;
} finally {
Streams.safeClose(zip);
}
}
public static void startNutOnlyWebapp(String... args) {
String path = Strings.sBlank(Lang.first(args), Webs.CONF_PATH);
log.infof("launch by '%s'", path);
final WebServer server = new NutOnlyWebServer(new WebConfig(path));
server.run();
log.info("Server is down!");
}
public static void printHelp() {
log.warn("web.properties not found");
}
public static void exec(String...args) {
log.debug(Json.toJson(args));
CmdParams params = CmdParams.parse(args, "debug");
if (params.has("inject")) {
String src = params.get("inject");
String self = null;
if (params.has("self"))
self = params.get("self");
else
self = WebLauncher.class.getProtectionDomain().getCodeSource().getLocation().getFile();
String dst = params.get("output");
if (dst == null) {
dst = src.substring(0, src.lastIndexOf('.')) + "-nutzweb.war";
}
merge(params, src, self, dst);
return;
}
if (params.has("war")) {
WebConfig conf = new WebConfig(new StringReader(""));
conf.set("war", params.check("war"));
final WebServer server = new WebServer(conf);
server.run();
}
}
public static void merge(CmdParams params, String srcA, String srcB, String target) {
try {
Files.createFileIfNoExists(target);
ZipInputStream zin_a = new ZipInputStream(new FileInputStream(srcA), Encoding.CHARSET_UTF8);
ZipInputStream zin_b = new ZipInputStream(new FileInputStream(srcB), Encoding.CHARSET_UTF8);
ZipOutputStream zout = new ZipOutputStream(new FileOutputStream(target), Encoding.CHARSET_UTF8);
zout.setLevel(0);
while (true) {
ZipEntry en = zin_a.getNextEntry();
if (en == null)
break;
if (en.getName().equals("META-INF/MANIFEST.MF"))
continue;
if (params.is("debug"))
log.debug("add " + en.getName());
zout.putNextEntry(new ZipEntry(en.getName()));
Streams.write(zout, zin_a);
zout.closeEntry();
}
while (true) {
ZipEntry en = zin_b.getNextEntry();
if (en == null)
break;
String name = en.getName();
if (!name.contains("/"))
continue;
if (name.startsWith("org/nutz/dao") || name.startsWith("org/nutz/aop"))
continue;
if (params.is("debug"))
log.debug("add " + en.getName());
try {
zout.putNextEntry(new ZipEntry(en.getName()));
Streams.write(zout, zin_b);
zout.closeEntry();
}
catch (Exception e) {
if (!en.getName().endsWith("/"))
log.info("dup ? " + en.getName());
}
}
zout.flush();
zout.finish();
zout.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
public static String selfPath() {
try {
ProtectionDomain domain = WebLauncher.class.getProtectionDomain();
URL location = domain.getCodeSource().getLocation();
return location.getFile();
}
catch (Exception e) {
return "";
}
}
}
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