1 files changed, 107 insertions, 0 deletions
diff --git a/src/com/android/camera/SDCard.java b/src/com/android/camera/SDCard.java
new file mode 100644
index 000000000..dad354007
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+++ b/src/com/android/camera/SDCard.java
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+/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.android.camera;
+
+import android.content.Context;
+import android.os.StatFs;
+import android.os.Environment;
+import android.os.storage.StorageVolume;
+import android.os.storage.IMountService;
+import android.os.ServiceManager;
+import android.util.Log;
+
+public class SDCard {
+    private static final String TAG = "SDCard";
+
+    private static final int VOLUME_SDCARD_INDEX = 1;
+    private IMountService mMountService = null;
+    private StorageVolume mVolume = null;
+    private String path = null;
+    private String rawpath = null;
+    private static SDCard sSDCard;
+
+    public boolean isWriteable() {
+        if (mVolume == null) return false;
+        final String state = getSDCardStorageState();
+        if (Environment.MEDIA_MOUNTED.equals(state)) {
+            return true;
+        }
+        return false;
+    }
+
+    public String getDirectory() {
+        if (mVolume == null) {
+            return null;
+        }
+        if (path == null) {
+            path = mVolume.getPath() + "/DCIM/Camera";
+        }
+        return path;
+    }
+
+    public String getRawDirectory() {
+        if (mVolume == null) {
+            return null;
+        }
+        if (rawpath == null) {
+            rawpath = mVolume.getPath() + "/DCIM/Camera/raw";
+        }
+        return rawpath;
+    }
+
+    public static synchronized SDCard instance() {
+        if (sSDCard == null) {
+            sSDCard = new SDCard();
+        }
+        return sSDCard;
+    }
+
+    private String getSDCardStorageState() {
+        try {
+            return mMountService.getVolumeState(mVolume.getPath());
+        } catch (Exception e) {
+            Log.w(TAG, "Failed to read SDCard storage state; assuming REMOVED: " + e);
+            return Environment.MEDIA_REMOVED;
+        }
+    }
+
+    private SDCard() {
+        try {
+            mMountService = IMountService.Stub.asInterface(ServiceManager
+                                                           .getService("mount"));
+            final StorageVolume[] volumes = mMountService.getVolumeList();
+            if (volumes.length > VOLUME_SDCARD_INDEX) {
+                mVolume = volumes[VOLUME_SDCARD_INDEX];
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "couldn't talk to MountService", e);
+        }
+    }
+
+}