initial checkin of yaulw (locally)

@integrate/InstallComponent2.cs

@@ -0,0 +1,186 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Component.All;
+using Microsoft.Win32;
+
+namespace Component.Binary.Java
+{
+    public class InstallComponent : IInstallComponent , ISetup
+    {
+        #region IInstallComponent Members
+
+        /// <summary>
+        /// Get the Component bound to this IInstallComponent
+        /// </summary>
+        /// <returns></returns>
+        public ComponentConfig.Component GetComponent()
+        {
+            return Common.EmbeddedConfig.BinaryComponents.GetComponent("Java");
+        }
+
+        /// <summary>
+        /// We only want to install Java if an earlier version is installed
+        /// </summary>
+        /// <returns>true, if an earlier version or none is installed, false otherwise</returns>
+        public bool BEFORE_INSTALLING_COMPONENT()
+        {
+            // If we get here, just in case always just install the java version
+            // to make sure everything works as expected
+
+            //string Version = GetLatestJavaVersionFromTheRegistry();
+            //if (!String.IsNullOrEmpty(Version))
+            //{
+            //    int nCompare = String.Compare(Version, GetComponent().Version);
+            //    if (nCompare < 0)
+            //        return true;
+            //    else
+            //        return false;
+            //}
+            return true;
+        }
+
+        /// <summary>
+        /// Installs Java on the system
+        /// </summary>
+        /// <returns>Returns true if the Component installs, false otherwise</returns>
+        public bool INSTALL_COMPONENT()
+        {
+            Common.PSetupSpwan(GetComponent().TempFileNamesNPath[0], "/s /v \"/qn ADDLOCAL=ALL IEXPLORER=1 REBOOT=Supress\"");
+            return true;
+        }
+
+        /// <summary>
+        /// Make sure that the version in the registry matches the component
+        /// </summary>
+        /// <returns>true, if the version in the registry matches what we installed, false otherwise</returns>
+        public bool AFTER_INSTALLING_COMPONENT()
+        {
+            string Version = GetLatestJavaVersionFromTheRegistry();
+            if (!String.IsNullOrEmpty(Version))
+            {
+                int nCompare = String.Compare(GetComponent().Version, Version);
+                if (nCompare != 0)
+                    return false;
+                else
+                    return true;
+            }
+            return false;
+        }
+
+        /// <summary>
+        /// Check to see, if this component supports uninstalling
+        /// </summary>
+        /// <returns>true, if uninstall is supported, false otherwise</returns>
+        public bool SUPPORTS_UNINSTALL()
+        {
+            return true;
+        }
+
+        /// <summary>
+        /// Check if we can uninstall the java version
+        /// </summary>
+        /// <returns>true, if version is installed, false otherwise</returns>
+        public bool BEFORE_UNINSTALLING_COMPONENT()
+        {            
+            string[] Versions = GetAllJavaVersionFromTheRegistry();
+            if (Versions != null && Versions.Length > 0)
+            {
+                if (Versions.Contains(GetComponent().Version))
+                    return true;
+            }
+            return false;
+        }
+
+        /// <summary>
+        /// Uninstalls Java on the system
+        /// </summary>
+        /// <returns>Returns true if the Component installs, false otherwise</returns>
+        public bool UNINSTALL_COMPONENT()
+        {
+            Common.PSetupSpwan(GetComponent().TempFileNamesNPath[0], "/s /v \"/qn REBOOT=Supress\" /x");
+            return true;
+        }
+
+        /// <summary>
+        /// Check to make sure that the version we uninstalled doesn't exist anymore
+        /// </summary>
+        /// <returns>true if version was removed, false otherwise</returns>
+        public bool AFTER_UNINSTALLING_COMPONENT()
+        {
+            string[] Versions = GetAllJavaVersionFromTheRegistry();
+            if (Versions != null && Versions.Length > 0)
+            {
+                if (Versions.Contains(GetComponent().Version))
+                    return false;
+            }
+            return true;
+        }
+
+        #endregion
+
+        #region ISetup Members
+
+        public void ComponentLoaded(ref SetupEvents subscribeToDesiredEvents)
+        {
+            subscribeToDesiredEvents.Before_Install += new SetupEvents.SetupEvent(subscribeToDesiredEvents_Before_Install);
+            subscribeToDesiredEvents.After_Install += new SetupEvents.SetupEvent(subscribeToDesiredEvents_After_Install);            
+        }
+
+        void subscribeToDesiredEvents_Before_Install()
+        {         
+        }
+
+        void subscribeToDesiredEvents_After_Install()
+        {         
+        }
+
+        #endregion
+
+        #region Private Helpers
+
+        /// <summary>
+        /// Use this function to check the java version in the registry
+        /// </summary>
+        /// <returns>The Java Version found in the registry or String.Empty, if not found</returns>
+        string GetLatestJavaVersionFromTheRegistry()
+        {
+            string[] Versions = GetAllJavaVersionFromTheRegistry();
+            if (Versions != null && Versions.Length > 0)
+            {
+                string strVersion = Versions[Versions.Length - 1];
+                if (!String.IsNullOrEmpty(strVersion))
+                    return strVersion;
+            }            
+            return String.Empty;
+        }
+
+        /// <summary>
+        /// Use this function to check all the java versions in the registry
+        /// </summary>
+        /// <returns>The Java Versions found in the registry or null, if none found</returns>
+        string[] GetAllJavaVersionFromTheRegistry()
+        {
+            bool bIsJavaInstalled = false;
+            try
+            {
+                RegistryKey reg = Registry.LocalMachine.OpenSubKey("Software\\JavaSoft\\Java Plug-in", false);
+                bIsJavaInstalled = (reg != null);
+                if(reg == null)
+                    reg = Registry.LocalMachine.OpenSubKey("Software\\Wow6432Node\\JavaSoft\\Java Plug-in", false);
+                bIsJavaInstalled = (reg != null);
+                if (bIsJavaInstalled)
+                {
+                    string[] SubKeys = reg.GetSubKeyNames();
+                    if (SubKeys != null && SubKeys.Length > 0)
+                        return SubKeys;
+                }
+            }
+            catch (Exception) { /* ignore */ }
+            return null;
+        }
+
+        #endregion
+    }
+}