网站基站的建设方案/四川seo快速排名-拓冰网页制作

在Liferay Enterprise中，对于License的使用和控制是十分讲究的，因为lincense决定了产品的使用能力和使用期限，我们现在就来深入分析下license.

License的部署：

首先又要回到Listener了，见http://supercharles888.blog.51cto.com/609344/907286博客所说，在Liferay的MainServlet的启动过程中，当处理全局启动事件时，它会注册所有的antoDeployListener，其中，LicenseAutoDeployListener也位列其中：

auto.deploy.listeners=\
com.liferay.portal.deploy.auto.OSGiAutoDeployListener,\
com.liferay.portal.deploy.auto.ExtAutoDeployListener,\
com.liferay.portal.deploy.auto.HookAutoDeployListener,\
com.liferay.portal.deploy.auto.LayoutTemplateAutoDeployListener,\
com.liferay.portal.deploy.auto.LiferayPackageAutoDeployListener,\
com.liferay.portal.deploy.auto.PortletAutoDeployListener,\
com.liferay.portal.deploy.auto.ThemeAutoDeployListener,\
com.liferay.portal.deploy.auto.WebAutoDeployListener,\
com.liferay.portal.deploy.auto.exploded.tomcat.HookExplodedTomcatListener,\
com.liferay.portal.deploy.auto.exploded.tomcat.LayoutTemplateExplodedTomcatListener,\
com.liferay.portal.deploy.auto.exploded.tomcat.PortletExplodedTomcatListener,\
com.liferay.portal.license.deploy.auto.LicenseAutoDeployListener,com.liferay.portal.deploy.auto.exploded.tomcat.ThemeExplodedTomcatListener

所以，当我们初次吧License文件放在$LIFERAY_HOME/deploy目录下，就会触发LicenseAutoDeployListener做出响应,而它实现了AutoDeployListener接口，所以放license文件到deploy目录会触发它的deploy方法：

public void deploy(File paramFile, String paramString)
{
if (a.isDebugEnabled())
a.debug("Invoking deploy for " + paramFile.getPath());
String str1 = FileUtil.getExtension(paramFile.getName());
if (!str1.equals("xml"))
return;
try
{
String str2 = FileUtil.read(paramFile);
Document localDocument = SAXReaderUtil.read(str2);
Element localElement = localDocument.getRootElement();
String str3 = localElement.getName();
if (!str3.equals("license"))
return;
}
catch (Exception localException)
{
return;
}
if (a.isInfoEnabled())
a.info("Copying license for " + paramFile.getPath());
this.b.autoDeploy(paramFile, paramString);
}

从这里我们可以看到，它05-07行首先会去检查license文件的扩展名是否为xml 。然后第10-13行会利用SAXReadUtil来读取这个文件，并且第14行判定根元素是否为license。然后在22行打印出一行信息（因为默认日志的info级别是开启的，所以我们可以看到这行日志）：

06:25:14,380 INFO [LicenseAutoDeployListener:?] Copying license for D:\Liferay_Cluster_Enterprise\Node1\liferay-portal-tomcat-6.1.10-ee-ga1\liferay-portal-6.1.10-ee-ga1\deploy\license-portaldevelopment-developer-6.1-triallicenses.xml

最后，第23行它去调用autoDeploy方法来进行部署工作，我们继续跟进。

这个b是LicenseAutoDeployer的一个实例，它才具体完成license的具体部署工作：

public class LicenseAutoDeployer extends a
implements AutoDeployer
{
public void autoDeploy(File paramFile, String paramString)
{
try
{
this.a = FileUtil.read(paramFile);
a();
}
...
}
}

它首先在第08行用FileUtil来读取license文件，具体处理逻辑在a类的b()方法中：

private com.liferay.portal.license.a b()
{
Document localDocument = SAXReaderUtil.read(this.a);
Element localElement1 = localDocument.getRootElement();
String str1 = GetterUtil.getString(localElement1.elementTextTrim("account-name"));
String str2 = GetterUtil.getString(localElement1.elementTextTrim("owner"));
String str3 = GetterUtil.getString(localElement1.elementTextTrim("description"));
String str4 = GetterUtil.getString(localElement1.elementTextTrim("product-name"));
String str5 = GetterUtil.getString(localElement1.elementTextTrim("product-id"), "Portal");
String str6 = GetterUtil.getString(localElement1.elementTextTrim("product-version"));
String str7 = GetterUtil.getString(localElement1.elementTextTrim("license-name"));
String str8 = GetterUtil.getString(localElement1.elementTextTrim("license-type"));
String str9 = GetterUtil.getString(localElement1.elementTextTrim("license-version"));
DateFormat localDateFormat = DateFormat.getDateTimeInstance(0, 0, Locale.US);
Date localDate1 = null;
if (str8.equals("trial"))
localDate1 = new Date();
else
localDate1 = localDateFormat.parse(localElement1.elementTextTrim("start-date"));
Date localDate2 = null;
if (str8.equals("trial"))
{
long l1 = GetterUtil.getLong(localElement1.elementTextTrim("lifetime"));
localDate2 = new Date(localDate1.getTime() + l1);
}
else
{
localDate2 = localDateFormat.parse(localElement1.elementTextTrim("expiration-date"));
}
int i = GetterUtil.getInteger(localElement1.elementTextTrim("max-servers"));
int j = GetterUtil.getInteger(localElement1.elementTextTrim("max-http-sessions"));
long l2 = GetterUtil.getLong(localElement1.elementTextTrim("max-concurrent-users"));
long l3 = GetterUtil.getLong(localElement1.elementTextTrim("max-users"));
ArrayList localArrayList1 = new ArrayList();
ArrayList localArrayList2 = new ArrayList();
ArrayList localArrayList3 = new ArrayList();
ArrayList localArrayList4 = new ArrayList();
a(localArrayList1, localElement1.element("host-names"), "host-name");
a(localArrayList2, localElement1.element("ip-addresses"), "ip-address");
a(localArrayList3, localElement1.element("mac-addresses"), "mac-address");
a(localArrayList4, localElement1.element("server-ids"), "server-id");
Element localElement2 = localElement1.element("servers");
if (localElement2 != null)
{
localObject1 = localElement2.elements("server");
Iterator localIterator = ((List)localObject1).iterator();
while (localIterator.hasNext())
{
localObject2 = (Element)localIterator.next();
a(localArrayList1, ((Element)localObject2).element("host-names"), "host-name");
a(localArrayList2, ((Element)localObject2).element("ip-addresses"), "ip-address");
a(localArrayList3, ((Element)localObject2).element("mac-addresses"), "mac-address");
a(localArrayList4, ((Element)localObject2).element("server-ids"), "server-id");
}
}
Object localObject1 = localElement1.elementTextTrim("key");
Object localObject2 = new com.liferay.portal.license.a(str1, str2, str3, str4, str5, str6, str7, str8, str9, localDate1, localDate2, i, j, l2, l3, (String[])localArrayList1.toArray(new String[localArrayList1.size()]), (String[])localArrayList2.toArray(new String[localArrayList2.size()]), (String[])localArrayList3.toArray(new String[localArrayList3.size()]), (String[])localArrayList4.toArray(new String[localArrayList4.size()]), (String)localObject1);
if (str8.equals("trial"))
localObject2 = d.b((com.liferay.portal.license.a)localObject2);
return (com.liferay.portal.license.a)(com.liferay.portal.license.a)localObject2;
}

这里可以看出，从第03-13行依次读取一些通用元素。然后第16行对是否是trial版本的license进行判断，一个license如下图所示：

<?xml version="1.0"?>
<license>
<account-name>Liferay Trial</account-name>
<owner>Charles Wang</owner>
<description>30-Day Trial License</description>
<product-name>Portal Development</product-name>
<product-version>6.1</product-version>
<license-name>Portal Developer</license-name>
<license-type>developer</license-type>
<license-version>3</license-version>
<start-date>Sunday, June 17, 2012 7:00:00 AM GMT</start-date>
<expiration-date>Tuesday, July 17, 2012 7:00:00 AM GMT</expiration-date>
<max-http-sessions>10</max-http-sessions>
<key>96af591fbfd1b507446223f679df4bbc4d8f51e9824f5424c0f83c42130c4c9180837cca5e9fc2e8dca0dffdae1cc0f1ca993f421c8c55f22153a28b970a6a6508ab22fa6180e7b66634451a1f8dd81eeb34ad936d1e13de77df4f6e216bed19e3ff69a01744b3b6258a17bcee435bed13820c5c00e2158553568cb9b2623c474508a3aa</key>
</license>

从这里可以看出，我们的<license-type>是developer, 不是trail,所以代码会执行第19行和28行，这2行会分别读取<start-date>和<expiration-date>这2个元素。第30-55行会读取集群license的一些配置信息，因为我们的license是免费申请的，所以没有这些信息，所以跳过。然后就执行第56行，它会去读取<key>元素的信息。最终把所有必要信息填充到a对象中以便以后使用。

License的管理：

对于License的管理主要在LicenseManager类中。主要方法之一为checkLicense，它会对license做合法性检查：

本文转自 charles_wang888 51CTO博客，原文链接：http://blog.51cto.com/supercharles888/916715，如需转载请自行联系原作者

相关文章：