Alexander Wels has uploaded a new change for review.

Change subject: webadmin: Store rest api session id in http session
......................................................................

webadmin: Store rest api session id in http session

- REST API stores a session id for the UI plugins.
  Moved the session id location from LocalStorage to
  HTTP session.

Change-Id: I6fe9af54054aefe694876b1805a4a44f9bba0482
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1077448
Signed-off-by: Alexander Wels <[email protected]>
---
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/CommunicationProvider.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/GWTRPCCommunicationProvider.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/OperationProcessor.java
A 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/StorageCallback.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/VdcOperationManager.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/gwtservices/GenericApiGWTService.java
M 
frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/server/gwt/GenericApiGWTServiceImpl.java
M 
frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/plugin/restapi/RestApiSessionManager.java
9 files changed, 183 insertions(+), 10 deletions(-)


  git pull ssh://gerrit.ovirt.org:29418/ovirt-engine refs/changes/07/26807/1

diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java
index dceea50..527d2bf 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java
@@ -20,6 +20,7 @@
 import org.ovirt.engine.core.common.queries.VdcQueryReturnValue;
 import org.ovirt.engine.core.common.queries.VdcQueryType;
 import org.ovirt.engine.ui.frontend.communication.RefreshActiveModelEvent;
+import org.ovirt.engine.ui.frontend.communication.StorageCallback;
 import org.ovirt.engine.ui.frontend.communication.UserCallback;
 import org.ovirt.engine.ui.frontend.communication.VdcOperation;
 import org.ovirt.engine.ui.frontend.communication.VdcOperationCallback;
@@ -632,7 +633,7 @@
 
     /**
      * A convenience method that calls {@link 
#runMultipleActions(VdcActionType, List, List, Object)} with
-     * running callbacks even on empty run
+     * running callbacks even on empty run.
      *
      * @param actionType The action to be repeated.
      * @param parameters The parameters of each action.
@@ -877,6 +878,14 @@
         }
     }
 
+    public void storeInHttpSession(final String key, final String value) {
+        getOperationManager().storeInHttpSession(key, value);
+    }
+
+    public void retrieveFromHttpSession(final String key, final 
StorageCallback callback) {
+        getOperationManager().retrieveFromHttpSession(key, callback);
+    }
+
     // TODO: Externalize to a better location, should support translation via
     // resource bundle file.
     /**
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/CommunicationProvider.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/CommunicationProvider.java
index 796462e..680a2f0 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/CommunicationProvider.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/CommunicationProvider.java
@@ -31,4 +31,19 @@
      */
     void logout(Object userObject, UserCallback<?> callback);
 
+    /**
+     * Store a {@code String} key value pair in the {@code HttpSession} on the 
server side. As a result these keys
+     * will not be persisted across engine server restarts.
+     * @param key The key.
+     * @param value The value.
+     * @param callback The callback to call once the value has been stored.
+     */
+    void storeInHttpSession(String key, String value, StorageCallback 
callback);
+
+    /**
+     * Retrieve the value associated with the key from the {@code HttpSession} 
on the server side.
+     * @param key The key
+     * @param the callback to call with the result.
+     */
+    void retrieveFromHttpSession(String key, StorageCallback callback);
 }
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/GWTRPCCommunicationProvider.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/GWTRPCCommunicationProvider.java
index a3d8f23..7d67fed 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/GWTRPCCommunicationProvider.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/GWTRPCCommunicationProvider.java
@@ -379,4 +379,33 @@
         });
     }
 
+    @Override
+    public void storeInHttpSession(final String key, final String value, final 
StorageCallback callback) {
+        getService().storeInHttpSession(key, value, new AsyncCallback<Void>() {
+            @Override
+            public void onSuccess(final Void result) {
+                callback.onSuccess(null);
+            }
+
+            @Override
+            public void onFailure(final Throwable caught) {
+                callback.onFailure(caught);
+            }
+        });
+    }
+
+    @Override
+    public void retrieveFromHttpSession(final String key, final 
StorageCallback callback) {
+        getService().retrieveFromHttpSession(key, new AsyncCallback<String>() {
+            @Override
+            public void onSuccess(final String result) {
+                callback.onSuccess(result);
+            }
+
+            @Override
+            public void onFailure(final Throwable caught) {
+                callback.onFailure(caught);
+            }
+        });
+    }
 }
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/OperationProcessor.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/OperationProcessor.java
index 09824d8..3e31a59 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/OperationProcessor.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/OperationProcessor.java
@@ -267,4 +267,32 @@
         communicationProvider.logout(userObject, callback);
     }
 
+    /**
+     * Default store where the caller doesn't care about the result.
+     * @param key The key
+     * @param value The value to store.
+     */
+    public void storeInHttpSession(final String key, final String value) {
+        storeInHttpSession(key, value, new StorageCallback() {
+
+            @Override
+            public void onSuccess(String result) {
+                // Do nothing
+            }
+
+            @Override
+            public void onFailure(Throwable caught) {
+                //Do nothing
+            }
+
+        });
+    }
+
+    public void storeInHttpSession(final String key, final String value, final 
StorageCallback callback) {
+        communicationProvider.storeInHttpSession(key, value, callback);
+    }
+
+    public void retrieveFromHttpSession(final String key, final 
StorageCallback callback) {
+        communicationProvider.retrieveFromHttpSession(key, callback);
+    }
 }
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/StorageCallback.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/StorageCallback.java
new file mode 100644
index 0000000..15f8cbd
--- /dev/null
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/StorageCallback.java
@@ -0,0 +1,15 @@
+package org.ovirt.engine.ui.frontend.communication;
+
+public interface StorageCallback {
+    /**
+     * Success callback.
+     * @param result Either the value, or null if there is no value to return.
+     */
+    void onSuccess(String result);
+
+    /**
+     * Failure callback.
+     * @param caught Any exceptions caught during the processing of the 
operation.
+     */
+    void onFailure(Throwable caught);
+}
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/VdcOperationManager.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/VdcOperationManager.java
index 22ef675..2c00dd2 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/VdcOperationManager.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/communication/VdcOperationManager.java
@@ -152,4 +152,21 @@
         loggedIn = isLoggedIn;
     }
 
+    /**
+     * Store a value on the back-end in the session.
+     * @param key The key.
+     * @param value The value.
+     */
+    public void storeInHttpSession(final String key, final String value) {
+        processor.storeInHttpSession(key, value);
+    }
+
+    /**
+     * Retrieve a stored value from the back-end session.
+     * @param key The key.
+     * @param callback The callback to call with the value.
+     */
+    public void retrieveFromHttpSession(final String key, final 
StorageCallback callback) {
+        processor.retrieveFromHttpSession(key, callback);
+    }
 }
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/gwtservices/GenericApiGWTService.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/gwtservices/GenericApiGWTService.java
index 69d102d..8e4036b 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/gwtservices/GenericApiGWTService.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/gwtservices/GenericApiGWTService.java
@@ -45,4 +45,7 @@
 
     public VdcReturnValueBase Login(String userName, String password, String 
profileName, VdcActionType loginType);
 
+    public void storeInHttpSession(String key, String value);
+
+    public String retrieveFromHttpSession(String key);
 }
diff --git 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/server/gwt/GenericApiGWTServiceImpl.java
 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/server/gwt/GenericApiGWTServiceImpl.java
index 68979c0..398f738 100644
--- 
a/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/server/gwt/GenericApiGWTServiceImpl.java
+++ 
b/frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/server/gwt/GenericApiGWTServiceImpl.java
@@ -33,6 +33,8 @@
 
     private static final Logger log = 
Logger.getLogger(GenericApiGWTServiceImpl.class);
 
+    private static final String UI_PREFIX = "UI_"; //$NON-NLS-1$
+
     private BackendLocal backend;
 
     @EJB(beanInterface = BackendLocal.class,
@@ -186,6 +188,27 @@
     }
 
     @Override
+    public void storeInHttpSession(String key, String value) {
+        HttpServletRequest request = this.getThreadLocalRequest();
+        HttpSession session = request.getSession();
+        session.setAttribute(UI_PREFIX + key, value);
+    }
+
+    @Override
+    public String retrieveFromHttpSession(String key) {
+        HttpServletRequest request = this.getThreadLocalRequest();
+        HttpSession session = request.getSession();
+        Object value = session.getAttribute(UI_PREFIX + key);
+        String result = null;
+        if (value instanceof String) {
+            result = (String)value;
+        } else {
+            log.error("Retrieving non string value from session"); 
//$NON-NLS-1$
+        }
+        return result;
+    }
+
+    @Override
     protected void doUnexpectedFailure(Throwable error) {
         // If the user is using a version of the application different to what
         // the server expects the names of the RPC serialization policy files
diff --git 
a/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/plugin/restapi/RestApiSessionManager.java
 
b/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/plugin/restapi/RestApiSessionManager.java
index eaf785f..2605af5 100644
--- 
a/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/plugin/restapi/RestApiSessionManager.java
+++ 
b/frontend/webadmin/modules/webadmin/src/main/java/org/ovirt/engine/ui/webadmin/plugin/restapi/RestApiSessionManager.java
@@ -4,6 +4,8 @@
 import java.util.logging.Logger;
 
 import org.ovirt.engine.ui.common.system.ClientStorage;
+import org.ovirt.engine.ui.frontend.Frontend;
+import org.ovirt.engine.ui.frontend.communication.StorageCallback;
 import org.ovirt.engine.ui.frontend.utils.BaseContextPathData;
 
 import com.google.gwt.core.client.Scheduler;
@@ -71,6 +73,8 @@
     private final String restApiBaseUrl;
 
     private String sessionTimeout;
+
+    private String restApiSessionId;
 
     @Inject
     public RestApiSessionManager(EventBus eventBus, ClientStorage 
clientStorage) {
@@ -159,14 +163,39 @@
      * Attempts to reuse existing REST API session that was previously 
{@linkplain #acquireSession acquired}.
      */
     public void reuseSession() {
-        String sessionId = getSessionId();
-
-        if (sessionId != null) {
-            RestApiSessionAcquiredEvent.fire(eventBus, sessionId);
-            scheduleKeepAliveHeartbeat();
+        //If reuseSession is called right after setSessionId, then 
getSessionId() without the callback will not
+        //be null. If it is null then reuseSession was called from an 
automatic login (as restApiSessionId is null
+        //can we can utilize the async call to retrieve it from the backend.
+        if (getSessionId() != null) {
+            processSessionId(getSessionId());
         } else {
-            RestApiSessionManager.logger.severe("Engine REST API session ID is 
not available"); //$NON-NLS-1$
+            getSessionId(new StorageCallback() {
+
+                @Override
+                public void onSuccess(String result) {
+                    if (result != null) {
+                        restApiSessionId = result;
+                        processSessionId(result);
+                    } else {
+                        processSessionIdException();
+                    }
+                }
+
+                @Override
+                public void onFailure(Throwable caught) {
+                    processSessionIdException();
+                }
+
+                private void processSessionIdException() {
+                    RestApiSessionManager.logger.severe("Engine REST API 
session ID is not available"); //$NON-NLS-1$
+                }
+            });
         }
+    }
+
+    private void processSessionId(String sessionId) {
+        RestApiSessionAcquiredEvent.fire(eventBus, sessionId);
+        scheduleKeepAliveHeartbeat();
     }
 
     /**
@@ -177,15 +206,20 @@
     }
 
     String getSessionId() {
-        return clientStorage.getLocalItem(SESSION_ID_KEY);
+        return restApiSessionId;
+    }
+
+    void getSessionId(final StorageCallback callback) {
+        Frontend.getInstance().retrieveFromHttpSession(SESSION_ID_KEY, 
callback);
     }
 
     void setSessionId(String sessionId) {
-        clientStorage.setLocalItem(SESSION_ID_KEY, sessionId);
+        Frontend.getInstance().storeInHttpSession(SESSION_ID_KEY, sessionId);
+        restApiSessionId = sessionId;
     }
 
     void clearSessionId() {
-        clientStorage.removeLocalItem(SESSION_ID_KEY);
+        setSessionId(null);
     }
 
 }


-- 
To view, visit http://gerrit.ovirt.org/26807
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I6fe9af54054aefe694876b1805a4a44f9bba0482
Gerrit-PatchSet: 1
Gerrit-Project: ovirt-engine
Gerrit-Branch: ovirt-engine-3.4
Gerrit-Owner: Alexander Wels <[email protected]>
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