/*
* Copyright 2002-2006 the original author or authors.
*
* 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 org.openuap.cms;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Collection;
import java.util.Iterator;
import java.util.Properties;
import org.apache.jcs.engine.control.CompositeCacheManager;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.openuap.cms.workbench.ui.Workbench;
import org.openuap.cms.workbench.ui.WorkbenchProperty;
import org.openuap.event.Event;
import org.openuap.plugin.Plugin;
import org.openuap.plugin.PluginManager;
import org.openuap.plugin.registry.Extension;
import org.openuap.plugin.registry.ExtensionPoint;
import org.openuap.plugin.registry.PluginDescriptor;
import org.openuap.plugin.registry.Extension.Parameter;
import org.openuap.runtime.config.ApplicationConfiguration;
import org.openuap.runtime.plugin.WebApplicationPlugin;
import org.openuap.runtime.setup.BootstrapUtils;
import org.openuap.runtime.setup.event.PluginDispatcherInitedEvent;
/**
* <p>
* CMS插件对象，负责初始化上下文，安装资源
* </p>
*
* <p>
* $Id: CmsPlugin.java 4035 2011-04-15 02:16:43Z orangeforjava $
* </p>
*
* @author Joseph
* @version 4.0
*/
public class CmsPlugin extends WebApplicationPlugin {
public static final String PLUGIN_ID = "org.openuap.cms";
/** 后台Workbench-UI扩展点. */
public static final String WORKBENCH_UI_EXPOINT_ID = "workbench-ui";
/** 后台Workbench属性扩展点. */
public static final String WORKBENCH_UI_PROPERTY_EXPOINT_ID = "workbench-ui-property";
public static final String WORKBENCH_UI_EXPOINT_PATH = "path";
public static final String WORKBENCH_UI_EXPOINT_NAME = "name";
public static final String EXPORT_DATA_EXTENSION_POINT = "data-export";
public static final String IMPORT_DATA_EXTENSION_POINT = "data-import";
//
public static final String EXPORT_DATA_NAME_PARAM = "name";
public static final String EXPORT_DATA_TITLE_PARAM = "title";
public static final String EXPORT_DATA_BEAN_PARAM = "bean";
//
public static final String IMPORT_DATA_NAME_PARAM = "name";
public static final String IMPORT_DATA_TITLE_PARAM = "title";
public static final String IMPORT_DATA_BEAN_PARAM = "bean";
private Workbench workbench = null;
private WorkbenchProperty workbenchProperty = null;
public String getPluginId() {
return PLUGIN_ID;
}
protected void doStart() throws Exception {
super.doStart();
workbench = new Workbench(this);
startCache();
}
protected void doStop() throws Exception {
stopCache();
super.doStop();
}
/**
* 启动缓存管理器
*/
private void startCache() {
CompositeCacheManager ccm = CompositeCacheManager
.getUnconfiguredInstance();
Properties props = new Properties();
try {
// 装载缓存配置信息
String configPath = BootstrapUtils.getBootstrapManager("base")
.getApplicationConfig().getString("sys.cache.config.path");
File cacheConfigFile = new File(configPath);
InputStream inputStream = new FileInputStream(cacheConfigFile);
props.load(inputStream);
parseProperties(props);
ccm.configure(props);
inputStream.close();
} catch (Exception ex) {
ex.printStackTrace();
this.log.error(ex);
}
}
/**
* 停止缓存服务
*
* @throws Exception
*/
private void stopCache() throws Exception {
CompositeCacheManager.getInstance().shutDown();
}
/**
* 解析配置属性
*
* @param props
*/
private void parseProperties(Properties props) {
if (props != null) {
//
java.util.Enumeration keyEnum = props.propertyNames();
while (keyEnum.hasMoreElements()) {
String key = (String) keyEnum.nextElement();
String value = props.getProperty(key);
value = evaluate(value);
props.setProperty(key, value);
}
}
}
/**
* 二次解析配置属性
*
* @param value
*
* @return String
*/
private String evaluate(String value) {
int pos = value.indexOf("${");
if (pos < 0) {
return value;
}
int end = value.indexOf("}");
if (end < pos + 2) {
return value;
}
String alias = value.substring(pos + 2, end).trim();
//
String alias_value = null;
if (alias
.equalsIgnoreCase(ApplicationConfiguration.DEFAULT_HOME_PROPERTY)) {
alias_value = BootstrapUtils.getBootstrapManager("base")
.getUAPHome();
} else {
alias_value = BootstrapUtils.getBootstrapManager()
.getApplicationConfig().getString(alias);
}
if (alias_value == null) {
return value;
} else {
value = value.substring(0, pos) + alias_value
+ value.substring(end + 1);
return value;
}
}
/**
*
*/
public void onPluginEvent(Event event) {
if (event instanceof PluginDispatcherInitedEvent) {
//
installPluginUI();
}
this.publishEvent(event);
}
/**
* 安装后台UI
*/
protected void installPluginUI() {
PluginManager pluginManager = this.getManager();
ExtensionPoint extPoint = pluginManager.getRegistry()
.getExtensionPoint(PLUGIN_ID, WORKBENCH_UI_EXPOINT_ID);
try {
for (Iterator it = extPoint.getConnectedExtensions().iterator(); it
.hasNext();) {
// 获得扩展了此扩展点的扩展
Extension ext = (Extension) it.next();
// 获得此扩展插件Id
PluginDescriptor pdesc = ext.getDeclaringPluginDescriptor();
String id = pdesc.getId();
Plugin applicationPlugin = pluginManager.getPlugin(id);
if (applicationPlugin.isSetup()) {
// 判断插件是否已经安装
String name = ext.getParameter(WORKBENCH_UI_EXPOINT_NAME)
.valueAsString();
String epath = ext.getParameter(WORKBENCH_UI_EXPOINT_PATH)
.valueAsString();
if (epath != null) {
// 修改其可以先从类路径装载，若无法装载到，则从WEB-INFO下装载
// 并且支持以","分割的多个UI定义文件
String[] paths = epath.split(",");
int index = 1;
for (String path : paths) {
InputStream in = null;
try {
// System.out.println("getServletContext="+getServletContext().getRealPath("WEB-INF/config/"
// + path+"]"));
in = this.getServletContext()
.getResourceAsStream(
"WEB-INF/config/" + path);
} catch (Exception e) {
// e.printStackTrace();
in = pluginManager.getPluginClassLoader(pdesc)
.getResourceAsStream(path);
}
if (in == null) {
in = pluginManager.getPluginClassLoader(pdesc)
.getResourceAsStream(path);
}
//
try {
SAXReader saxReader = new SAXReader();
// System.out.println("in="+in);
Document doc = saxReader.read(in);
Element adminElement = (Element) doc
.selectSingleNode("/workbench");
//
workbench.addModel(name + "_" + index++,
adminElement);
} catch (Exception e) {
e.printStackTrace();
log
.error(
"Failure when parsing main workbench-ui.xml file",
e);
}
try {
if (in != null) {
in.close();
}
} catch (Exception ignored) {
// Ignore.
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
//
ExtensionPoint propExtPoint = pluginManager.getRegistry()
.getExtensionPoint(PLUGIN_ID, WORKBENCH_UI_PROPERTY_EXPOINT_ID);
try {
Collection extensions = propExtPoint.getConnectedExtensions();
if (extensions != null && extensions.size() > 0) {
for (Iterator it = propExtPoint.getConnectedExtensions()
.iterator(); it.hasNext();) {
// 获得扩展了此扩展点的扩展
Extension ext = (Extension) it.next();
String title = ext.getParameter("title").valueAsString();
Parameter pDescription = ext.getParameter("description");
String description = (pDescription == null) ? ""
: pDescription.valueAsString();
//
Parameter pIcon = ext.getParameter("icon");
String icon = (pIcon == null) ? "" : pIcon.valueAsString();
String adminTitle = ext.getParameter("admin-title")
.valueAsString();
String adminUrl = ext.getParameter("admin-url")
.valueAsString();
String appTitle = ext.getParameter("app-title")
.valueAsString();
String appUrl = ext.getParameter("app-url").valueAsString();
String logoutUrl = ext.getParameter("logout-url")
.valueAsString();
Parameter pStatus = ext.getParameter("status-url");
String statusUrl = (pStatus == null) ? "admin/workbench.jhtml?action=Status"
: pStatus.valueAsString();
//
this.workbenchProperty = new WorkbenchProperty();
this.workbenchProperty.setAdminTitle(adminTitle);
this.workbenchProperty.setAdminUrl(adminUrl);
this.workbenchProperty.setDescription(description);
this.workbenchProperty.setIcon(icon);
this.workbenchProperty.setAppTitle(appTitle);
this.workbenchProperty.setAppUrl(appUrl);
this.workbenchProperty.setLogoutUrl(logoutUrl);
this.workbenchProperty.setTitle(title);
this.workbenchProperty.setStatusUrl(statusUrl);
}
} else {
this.workbenchProperty = new WorkbenchProperty();
this.workbenchProperty.setAdminTitle("OpenUAP CMS 管理后台");
this.workbenchProperty
.setAdminUrl("admin/index.jhtml?action=Home");
this.workbenchProperty.setDescription("");
this.workbenchProperty.setIcon("");
this.workbenchProperty.setAppTitle("");
this.workbenchProperty.setAppUrl("");
this.workbenchProperty
.setLogoutUrl("admin/login.jhtml?action=Logout");
this.workbenchProperty.setTitle("OpenUAP CMS");
}
} catch (Exception e) {
e.printStackTrace();
}
}
public WorkbenchProperty getWorkbenchProperty() {
return workbenchProperty;
}
public Workbench getWorkbench() {
return workbench;
}
}