Added OwnCloudAccount class and method OwnCloudSessionManager#gertClientFor(OwnCloudAccount, ...) to ease the reuse of OwnCloudClient instances after creating accounts with authentication based in external authentication providers

src/com/owncloud/android/lib/common/OwnCloudAccount.java

@@ -0,0 +1,95 @@
+/* ownCloud Android client application
+ *   Copyright (C) 2014 ownCloud Inc.
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.lib.common;
+
+
+import java.io.IOException;
+
+import com.owncloud.android.lib.common.accounts.AccountUtils;
+import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
+
+import android.accounts.Account;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.content.Context;
+import android.net.Uri;
+
+/**
+ * OwnCloud Account
+ * 
+ * @author David A. Velasco
+ */
+public class OwnCloudAccount {
+
+    private Uri mBaseUri; 
+    
+    private OwnCloudCredentials mCredentials;
+    
+    private String mSavedAccountName;
+    
+    
+    public OwnCloudAccount(Account savedAccount, Context context) 
+    		throws AccountNotFoundException, AuthenticatorException, 
+    		IOException, OperationCanceledException {
+    	
+    	if (savedAccount == null) {
+    		throw new IllegalArgumentException("Parameter 'savedAccount' cannot be null");
+    	}
+    	if (context == null) {
+    		throw new IllegalArgumentException("Parameter 'context' cannot be null");
+    	}
+    	
+    	mSavedAccountName = savedAccount.name;
+        mBaseUri = Uri.parse(AccountUtils.getBaseUrlForAccount(context, savedAccount));
+        mCredentials = AccountUtils.getCredentialsForAccount(context, savedAccount);
+    }
+    
+    
+    public OwnCloudAccount(Uri baseUri, OwnCloudCredentials credentials) {
+        if (baseUri == null) {
+            throw new IllegalArgumentException("Parameter 'baseUri' cannot be null");
+        }
+        mSavedAccountName = null;
+        mBaseUri = baseUri;
+        mCredentials = credentials != null ? 
+        		credentials : OwnCloudCredentialsFactory.getAnonymousCredentials();
+        String username = credentials.getUsername();
+        if (username != null) {
+        	mSavedAccountName = AccountUtils.buildAccountName(mBaseUri, username);
+        }
+    }
+    
+
+	public boolean isAnonymous() {
+        return (mCredentials == null);
+    }
+    
+    public Uri getBaseUri() {
+        return mBaseUri;
+    }
+            
+    public OwnCloudCredentials getCredentials() {
+        return mCredentials;
+    }
+    
+    public String getName() {
+    	return mSavedAccountName;
+    }
+
+    
+}

src/com/owncloud/android/lib/common/OwnCloudBasicCredentials.java

@@ -30,6 +30,11 @@ public class OwnCloudBasicCredentials implements OwnCloudCredentials {
 		);
 	}
 
+	@Override
+	public String getUsername() {
+		return mUsername;
+	}
+
 	@Override
 	public String getAuthToken() {
 		return mPassword;

src/com/owncloud/android/lib/common/OwnCloudBearerCredentials.java

@@ -32,6 +32,12 @@ public class OwnCloudBearerCredentials implements OwnCloudCredentials {
 		);
 	}
 
+	@Override
+	public String getUsername() {
+		// its unknown
+		return null;
+	}
+	
 	@Override
 	public String getAuthToken() {
 		return mAccessToken;
@@ -41,5 +47,5 @@ public class OwnCloudBearerCredentials implements OwnCloudCredentials {
 	public boolean authTokenExpires() {
 		return true;
 	}
-	
+
 }

src/com/owncloud/android/lib/common/OwnCloudClientManager.java

@@ -62,5 +62,7 @@ public interface OwnCloudClientManager {
     public OwnCloudClient removeClientFor(Account account, Context context) 
     		throws AccountNotFoundException, AuthenticatorException, 
     		IOException, OperationCanceledException;
+
+	public OwnCloudClient getClientFor(OwnCloudAccount account, Context context);
     
 }

src/com/owncloud/android/lib/common/OwnCloudCredentials.java

@@ -21,6 +21,8 @@ public interface OwnCloudCredentials {
 
 	public void applyTo(OwnCloudClient ownCloudClient);
 
+	public String getUsername();
+	
 	public String getAuthToken();
 	
 	public boolean authTokenExpires();

src/com/owncloud/android/lib/common/OwnCloudCredentialsFactory.java

@@ -42,6 +42,12 @@ public class OwnCloudCredentialsFactory {
 		public boolean authTokenExpires() {
 			return false;
 		}
+
+		@Override
+		public String getUsername() {
+			// no user name
+			return null;
+		}
 	}
 
 }

src/com/owncloud/android/lib/common/OwnCloudSamlSsoCredentials.java

@@ -39,6 +39,12 @@ public class OwnCloudSamlSsoCredentials implements OwnCloudCredentials {
         }
 	}
 
+	@Override
+	public String getUsername() {
+		// its unknown
+		return null;
+	}
+	
 	@Override
 	public String getAuthToken() {
 		return mSessionCookie;

src/com/owncloud/android/lib/common/SimpleFactoryManager.java

@@ -13,6 +13,18 @@ import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundExce
 public class SimpleFactoryManager implements OwnCloudClientManager {
 
     
+	@Override
+	public OwnCloudClient getClientFor(OwnCloudAccount account, Context context) {
+		OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(
+				account.getBaseUri(), 
+				context.getApplicationContext(),
+				true);
+
+		client.setCredentials(account.getCredentials());
+		return client;
+	}
+
+	
 	@Override
 	public OwnCloudClient getClientFor(Account savedAccount, Context context)
 			throws OperationCanceledException, AuthenticatorException, AccountNotFoundException,

src/com/owncloud/android/lib/common/SingleSessionManager.java

@@ -64,14 +64,64 @@ public class SingleSessionManager implements OwnCloudClientManager {
     private Map<String, Map<OwnCloudCredentials, OwnCloudClient>> mClientsPerServer = 
             new HashMap<String, Map<OwnCloudCredentials, OwnCloudClient>>();
     
+    private Map<String, OwnCloudClient> mClientsWithKnownUsername = 
+    		new HashMap<String, OwnCloudClient>();
+    
+    private Map<String, OwnCloudClient> mClientsWithUnknownUsername = 
+    		new HashMap<String, OwnCloudClient>();
+    
     
     public static OwnCloudClientManager getInstance() {
     	if (mInstance == null) {
     		mInstance = new SingleSessionManager();
     	}
-    	return mInstance ;
+    	return mInstance;
     }
 
+
+    @Override
+    public synchronized OwnCloudClient getClientFor(OwnCloudAccount account, Context context) {
+    	if (account == null) {
+    		throw new IllegalArgumentException("Cannot get an OwnCloudClient for a null account");
+    	}
+
+    	OwnCloudClient client = null;
+    	String accountName = account.getName();
+    	String sessionName = AccountUtils.buildAccountName(
+    			account.getBaseUri(), 
+    			account.getCredentials().getAuthToken());
+    	
+    	if (accountName != null) {
+    		client = mClientsWithKnownUsername.get(account.getName());
+    	}
+    	if (client == null) {
+    		if (accountName != null) {
+    			client = mClientsWithUnknownUsername.remove(sessionName);
+    			if (client != null) {
+    				mClientsWithKnownUsername.put(accountName, client);
+    			}
+    		} else {
+        		client = mClientsWithUnknownUsername.get(sessionName);
+    		}
+    	}
+    	
+    	if (client == null) {
+    		// no client to reuse - create a new one
+    		client = OwnCloudClientFactory.createOwnCloudClient(
+    				account.getBaseUri(), 
+    				context.getApplicationContext(), 
+    				true);
+    		client.setCredentials(account.getCredentials());
+    		if (accountName != null) {
+    			mClientsWithKnownUsername.put(accountName, client);
+    		} else {
+    			mClientsWithUnknownUsername.put(sessionName, client);
+    		}
+    	}
+    	
+    	return client;
+    }
+    
     
 	@Override
 	public synchronized OwnCloudClient getClientFor(Account savedAccount, Context context)

src/com/owncloud/android/lib/common/accounts/AccountUtils.java

@@ -37,6 +37,7 @@ import android.accounts.AccountsException;
 import android.accounts.AuthenticatorException;
 import android.accounts.OperationCanceledException;
 import android.content.Context;
+import android.net.Uri;
 
 public class AccountUtils {
     public static final String WEBDAV_PATH_1_2 = "/webdav/owncloud.php";
@@ -185,6 +186,15 @@ public class AccountUtils {
         return credentials;
         
 	}
+
+	
+    public static String buildAccountName(Uri serverBaseUrl, String username) {
+        String accountName = username + "@" + serverBaseUrl.getHost();
+        if (serverBaseUrl.getPort() >= 0) {
+            accountName += ":" + serverBaseUrl.getPort();
+        }
+        return accountName;
+    }
     
     
     public static class AccountNotFoundException extends AccountsException {