1 files changed, 135 insertions, 0 deletions
diff --git a/core/java/android/content/SyncAdapterNew.java b/core/java/android/content/SyncAdapterNew.java
new file mode 100644
index 0000000..5b23395
--- /dev/null
+++ b/core/java/android/content/SyncAdapterNew.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2006 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 android.content;
+
+import android.os.*;
+import android.os.Process;
+import android.accounts.Account;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * @hide
+ */
+public abstract class SyncAdapterNew {
+    private static final String TAG = "SyncAdapter";
+    private final Context mContext;
+    private final String mAuthority;
+
+    /** Kernel event log tag.  Also listed in data/etc/event-log-tags. */
+    public static final int LOG_SYNC_DETAILS = 2743;
+
+    public SyncAdapterNew(Context context, String authority) {
+        mContext = context;
+        mAuthority = authority;
+    }
+
+    class Transport extends ISyncAdapter.Stub {
+        private final AtomicInteger mNumSyncStarts = new AtomicInteger(0);
+        private volatile Thread mSyncThread;
+
+        public void startSync(ISyncContext syncContext, Account account, Bundle extras) {
+            boolean alreadyInProgress;
+            synchronized (this) {
+                if (mSyncThread == null) {
+                    mSyncThread = new Thread(
+                            new SyncRunnable(new SyncContext(syncContext), account, extras),
+                            "SyncAdapterThread-" + mNumSyncStarts.incrementAndGet());
+                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+                    mSyncThread.start();
+                    alreadyInProgress = false;
+                } else {
+                    alreadyInProgress = true;
+                }
+            }
+
+            if (alreadyInProgress) {
+                try {
+                    syncContext.onFinished(SyncResult.ALREADY_IN_PROGRESS);
+                } catch (RemoteException e) {
+                    // don't care if the caller is no longer around
+                }
+            }
+        }
+
+        public void cancelSync() {
+            synchronized (this) {
+                if (mSyncThread != null) {
+                    mSyncThread.interrupt();
+                }
+            }
+        }
+
+        private class SyncRunnable implements Runnable {
+            private final SyncContext mSyncContext;
+            private final Account mAccount;
+            private final Bundle mExtras;
+
+            private SyncRunnable(SyncContext syncContext, Account account, Bundle extras) {
+                mSyncContext = syncContext;
+                mAccount = account;
+                mExtras = extras;
+            }
+
+            public void run() {
+                if (isCanceled()) {
+                    return;
+                }
+
+                SyncResult syncResult = new SyncResult();
+                ContentProviderClient provider = mAuthority != null
+                        ? mContext.getContentResolver().acquireContentProviderClient(mAuthority)
+                        : null;
+                try {
+                    SyncAdapterNew.this.performSync(mAccount, mExtras, provider, syncResult);
+                } finally {
+                    if (provider != null) {
+                        provider.release();
+                    }
+                    if (!isCanceled()) {
+                        mSyncContext.onFinished(syncResult);
+                    }
+                    mSyncThread = null;
+                }
+            }
+
+            private boolean isCanceled() {
+                return Thread.currentThread().isInterrupted();
+            }
+        }
+    }
+
+    Transport mTransport = new Transport();
+
+    /**
+     * Get the Transport object.
+     */
+    public final ISyncAdapter getISyncAdapter() {
+        return mTransport;
+    }
+
+    /**
+     * Perform a sync for this account. SyncAdapter-specific parameters may
+     * be specified in extras, which is guaranteed to not be null. Invocations
+     * of this method are guaranteed to be serialized.
+     *
+     * @param account the account that should be synced
+     * @param extras SyncAdapter-specific parameters
+     */
+    public abstract void performSync(Account account, Bundle extras,
+            ContentProviderClient provider, SyncResult syncResult);
+}
+\ No newline at end of file