1 files changed, 143 insertions, 0 deletions
diff --git a/java/com/android/voicemailomtp/VisualVoicemailPreferences.java b/java/com/android/voicemailomtp/VisualVoicemailPreferences.java
new file mode 100644
index 000000000..5bc2c6951
--- /dev/null
+++ b/java/com/android/voicemailomtp/VisualVoicemailPreferences.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2016 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.voicemailomtp;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+import android.support.annotation.Nullable;
+import android.telecom.PhoneAccountHandle;
+import java.util.Set;
+
+/**
+ * Save visual voicemail values in shared preferences to be retrieved later. Because a voicemail
+ * source is tied 1:1 to a phone account, the phone account handle is used in the key for each
+ * voicemail source and the associated data.
+ */
+public class VisualVoicemailPreferences {
+
+    private static final String VISUAL_VOICEMAIL_SHARED_PREFS_KEY_PREFIX =
+            "visual_voicemail_";
+
+    private final SharedPreferences mPreferences;
+    private final PhoneAccountHandle mPhoneAccountHandle;
+
+    public VisualVoicemailPreferences(Context context, PhoneAccountHandle phoneAccountHandle) {
+        mPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        mPhoneAccountHandle = phoneAccountHandle;
+    }
+
+    public class Editor {
+
+        private final SharedPreferences.Editor mEditor;
+
+        private Editor() {
+            mEditor = mPreferences.edit();
+        }
+
+        public void apply() {
+            mEditor.apply();
+        }
+
+        public Editor putBoolean(String key, boolean value) {
+            mEditor.putBoolean(getKey(key), value);
+            return this;
+        }
+
+        @NeededForTesting
+        public Editor putFloat(String key, float value) {
+            mEditor.putFloat(getKey(key), value);
+            return this;
+        }
+
+        public Editor putInt(String key, int value) {
+            mEditor.putInt(getKey(key), value);
+            return this;
+        }
+
+        @NeededForTesting
+        public Editor putLong(String key, long value) {
+            mEditor.putLong(getKey(key), value);
+            return this;
+        }
+
+        public Editor putString(String key, String value) {
+            mEditor.putString(getKey(key), value);
+            return this;
+        }
+
+        @NeededForTesting
+        public Editor putStringSet(String key, Set<String> value) {
+            mEditor.putStringSet(getKey(key), value);
+            return this;
+        }
+    }
+
+    public Editor edit() {
+        return new Editor();
+    }
+
+    public boolean getBoolean(String key, boolean defValue) {
+        return getValue(key, defValue);
+    }
+
+    @NeededForTesting
+    public float getFloat(String key, float defValue) {
+        return getValue(key, defValue);
+    }
+
+    public int getInt(String key, int defValue) {
+        return getValue(key, defValue);
+    }
+
+    @NeededForTesting
+    public long getLong(String key, long defValue) {
+        return getValue(key, defValue);
+    }
+
+    public String getString(String key, String defValue) {
+        return getValue(key, defValue);
+    }
+
+    @Nullable
+    public String getString(String key) {
+        return getValue(key, null);
+    }
+
+    @NeededForTesting
+    public Set<String> getStringSet(String key, Set<String> defValue) {
+        return getValue(key, defValue);
+    }
+
+    public boolean contains(String key) {
+        return mPreferences.contains(getKey(key));
+    }
+
+    private <T> T getValue(String key, T defValue) {
+        if (!contains(key)) {
+            return defValue;
+        }
+        Object object = mPreferences.getAll().get(getKey(key));
+        if (object == null) {
+            return defValue;
+        }
+        return (T) object;
+    }
+
+    private String getKey(String key) {
+        return VISUAL_VOICEMAIL_SHARED_PREFS_KEY_PREFIX + key + "_" + mPhoneAccountHandle.getId();
+    }
+}