JBDS-4007 Need a new check for existing OpenJDK installed as an msi package

Fix implements:
1. Check if OpenJDK MSI package installed, using the same query
   used by uninstall.ps1. It sets flag openJdkMsi on JdkInstall
   instance. This flag blocks OpenJDK selection for installation
   to avoid possible installation errors in case msi cannot update
   already installed OpenJDK;
2. Disabling for Back ad Next buttons on Confirmation page until
   detection is finished.

Author: dgolovin

browser/model/helpers/util.js

@@ -21,7 +21,7 @@ class Util {
     });
   }
 
-  static executeFile(file, args, outputCode) {
+  static executeFile(file, args, outputCode=1) {
     return new Promise((resolve, reject) => {
       child_process.execFile(file, args, (error, stdout, stderr) => {
         if (error) {
@@ -37,6 +37,18 @@ class Util {
     });
   }
 
+  static writeFile(key, file, data) {
+    return new Promise((resolve, reject) => {
+      fs.writeFile(file, data, (err) => {
+        if (err) {
+          reject(err);
+        } else {
+          resolve(true);
+        }
+      });
+    });
+  }
+
   static folderContains(folder, fileNames) {
     return new Promise((resolve, reject) => {
       fs.readdir(folder, (err, files) => {

browser/model/jdk-install.js

@@ -27,9 +27,11 @@ class JdkInstall extends InstallableItem {
     this.jdkSha256 = jdkSha256;
     this.bundledFile = path.join(this.downloadFolder, this.downloadedFileName);
     this.downloadedFile = path.join(this.installerDataSvc.tempDir(), this.downloadedFileName);
+    this.msiSearchScript = path.join(this.installerDataSvc.tempDir(), 'search-openjdk-msi.ps1');
     this.existingVersion = '';
     this.minimumVersion = '1.8.0';
     this.jdkZipEntryPrefix = prefix;
+    this.openJdkMsi = false;
     //this.addOption('install',this.version,this.installerDataSvc.jdkDir());
     //this.addOption('detected', this.minimumVersion, '', true);
   }
@@ -59,9 +61,26 @@ class JdkInstall extends InstallableItem {
     } else {
       command = 'which java';
     }
+
     this.addOption('install',this.version,'',true);
-    Util.executeCommand('java -version', 2)
-    .then((output) => {
+
+    let data = [
+      "$vbox = Get-WmiObject Win32_Product | where {$_.Name -like '*OpenJDK*'};",
+      "echo $vbox.IdentifyingNumber"
+    ].join('\r\n');
+    let args = [
+      '-ExecutionPolicy',
+      'ByPass',
+      '-File',
+      this.msiSearchScript
+    ];
+    Util.writeFile(JdkInstall.key(),this.msiSearchScript, data)
+    .then(() => {
+      return Util.executeFile('powershell', args);
+    }).then((output)=>{
+      this.openJdkMsi = output.length>0;
+      return Util.executeCommand('java -version', 2);
+    }).then((output) => {
       return new Promise((resolve, reject) => {
         let version = versionRegex.exec(output);
         if (version && version.length > 1) {
@@ -83,7 +102,8 @@ class JdkInstall extends InstallableItem {
     }).then((result) => {
       return Util.executeCommand(command, 2);
     }).then((output) => {
-        var locationRegex = /java.home*\s=*\s(.*)[\s\S]/;
+        var locationRegex = /java\.home*\s=*\s(.*)[\s\S]/;
+        this.openJdk = output.includes("OpenJDK");
         var t = locationRegex.exec(output);
         if(t.length > 1) {
           this.option['detected'].location = t[1];

browser/pages/confirm/confirm.html

@@ -362,7 +362,7 @@
            ng-class="{'dotted-panel':checkboxModel.jdk.hasOption('detected')&&checkboxModel.jdk.selectedOption === 'detected'}">
            <!--ng-click="checkboxModel.jdk.changeIsCollapsed()">-->
            <div class="checkbox-container verticalLine">
-             <input type="checkbox" ng-disabled="!checkboxModel.jdk.hasOption('detected') && checkboxModel.jbds.selectedOption === 'install' || checkboxModel.jdk.hasOption('detected') && !checkboxModel.jdk.option.detected.valid && checkboxModel.jbds.selectedOption === 'install'" ng-model="checkboxModel.jdk.selectedOption" aria-label="Toggle ngHide" class="vallign-middle" ng-true-value="'install'" ng-false-value="'detected'">
+             <input type="checkbox" ng-disabled="!checkboxModel.jdk.hasOption('detected') && checkboxModel.jbds.selectedOption === 'install' || checkboxModel.jdk.hasOption('detected') && !checkboxModel.jdk.option.detected.valid && checkboxModel.jbds.selectedOption === 'install' || checkboxModel.jdk.hasOption('detected') && checkboxModel.jdk.option.detected.valid && checkboxModel.jdk.openJdkMsi" ng-model="checkboxModel.jdk.selectedOption" aria-label="Toggle ngHide" class="vallign-middle" ng-true-value="'install'" ng-false-value="'detected'">
            </div>
         <div class="checkbox-container" ng-show="false">
           <div id="arrow-jdk" class="arrow" ng-class="{'arrow-down':!checkboxModel.jdk.isCollapsed}" aria-label="Toggle ngHide"></div>
@@ -520,7 +520,8 @@
   <button type="button" id="confirm-cancel-btn" class="cancel-btn footer-btns btn-plain btn-med-size btn btn-lg pull-left" form="confirmForm"
           ng-click="confCtrl.exit()">Cancel</button>
   <button type="button" id="confirm-back-btn" class="back-btn-spacer footer-btns btn-plain btn-med-size btn btn-lg" form="confirmForm"
+          ng-disabled="confCtrl.isDisabled"
           ng-click="confCtrl.back()">Back</button>
   <button type="submit" id="confirm-install-btn" class="go-btn footer-btns btn btn-primary btn-lg" form="confirmForm"
-          ng-disabled="!confCtrl.isConfigurationValid()" autofocus>Download & Install</button>
+          ng-disabled="!confCtrl.isConfigurationValid() || confCtrl.isDisabled" autofocus>Download & Install</button>
 </footer>