1 files changed, 94 insertions, 0 deletions
diff --git a/services/core/java/com/android/server/accounts/AccountAuthenticatorCache.java b/services/core/java/com/android/server/accounts/AccountAuthenticatorCache.java
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+++ b/services/core/java/com/android/server/accounts/AccountAuthenticatorCache.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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 com.android.server.accounts;
+
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorDescription;
+import android.accounts.IAccountAuthenticator;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.pm.RegisteredServicesCache;
+import android.content.pm.XmlSerializerAndParser;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlSerializer;
+
+import java.io.IOException;
+
+/**
+ * A cache of services that export the {@link IAccountAuthenticator} interface. This cache
+ * is built by interrogating the {@link PackageManager} and is updated as packages are added,
+ * removed and changed. The authenticators are referred to by their account type and
+ * are made available via the {@link RegisteredServicesCache#getServiceInfo} method.
+ * @hide
+ */
+/* package private */ class AccountAuthenticatorCache
+        extends RegisteredServicesCache<AuthenticatorDescription>
+        implements IAccountAuthenticatorCache {
+    private static final String TAG = "Account";
+    private static final MySerializer sSerializer = new MySerializer();
+
+    public AccountAuthenticatorCache(Context context) {
+        super(context, AccountManager.ACTION_AUTHENTICATOR_INTENT,
+                AccountManager.AUTHENTICATOR_META_DATA_NAME,
+                AccountManager.AUTHENTICATOR_ATTRIBUTES_NAME, sSerializer);
+    }
+
+    public AuthenticatorDescription parseServiceAttributes(Resources res,
+            String packageName, AttributeSet attrs) {
+        TypedArray sa = res.obtainAttributes(attrs,
+                com.android.internal.R.styleable.AccountAuthenticator);
+        try {
+            final String accountType =
+                    sa.getString(com.android.internal.R.styleable.AccountAuthenticator_accountType);
+            final int labelId = sa.getResourceId(
+                    com.android.internal.R.styleable.AccountAuthenticator_label, 0);
+            final int iconId = sa.getResourceId(
+                    com.android.internal.R.styleable.AccountAuthenticator_icon, 0);
+            final int smallIconId = sa.getResourceId(
+                    com.android.internal.R.styleable.AccountAuthenticator_smallIcon, 0);
+            final int prefId = sa.getResourceId(
+                    com.android.internal.R.styleable.AccountAuthenticator_accountPreferences, 0);
+            final boolean customTokens = sa.getBoolean(
+                    com.android.internal.R.styleable.AccountAuthenticator_customTokens, false);
+            if (TextUtils.isEmpty(accountType)) {
+                return null;
+            }
+            return new AuthenticatorDescription(accountType, packageName, labelId, iconId,
+                    smallIconId, prefId, customTokens);
+        } finally {
+            sa.recycle();
+        }
+    }
+
+    private static class MySerializer implements XmlSerializerAndParser<AuthenticatorDescription> {
+        public void writeAsXml(AuthenticatorDescription item, XmlSerializer out)
+                throws IOException {
+            out.attribute(null, "type", item.type);
+        }
+
+        public AuthenticatorDescription createFromXml(XmlPullParser parser)
+                throws IOException, XmlPullParserException {
+            return AuthenticatorDescription.newKey(parser.getAttributeValue(null, "type"));
+        }
+    }
+}