1 files changed, 146 insertions, 0 deletions
diff --git a/java/com/android/dialer/common/PerAccountSharedPreferences.java b/java/com/android/dialer/common/PerAccountSharedPreferences.java
new file mode 100644
index 000000000..0ed1b03a5
--- /dev/null
+++ b/java/com/android/dialer/common/PerAccountSharedPreferences.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2017 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.dialer.common;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.support.annotation.Nullable;
+import android.telecom.PhoneAccountHandle;
+import java.util.Set;
+
+/**
+ * Class that helps us store dialer preferences that are phone account dependent. This is necessary
+ * for cases such as settings that are phone account dependent e.g endless vm. The logic is to
+ * essentially store the shared preference by appending the phone account id to the key.
+ */
+public class PerAccountSharedPreferences {
+  private final String sharedPrefsKeyPrefix;
+  private final SharedPreferences preferences;
+  private final PhoneAccountHandle phoneAccountHandle;
+
+  public PerAccountSharedPreferences(
+      Context context, PhoneAccountHandle handle, SharedPreferences prefs) {
+    preferences = prefs;
+    phoneAccountHandle = handle;
+    sharedPrefsKeyPrefix = "phone_account_dependent_";
+  }
+
+  /**
+   * Not to be used, currently only used by {@VisualVoicemailPreferences} for legacy reasons.
+   */
+  protected PerAccountSharedPreferences(
+      Context context, PhoneAccountHandle handle, SharedPreferences prefs, String prefix) {
+    Assert.checkArgument(prefix.equals("visual_voicemail_"));
+    preferences = prefs;
+    phoneAccountHandle = handle;
+    sharedPrefsKeyPrefix = prefix;
+  }
+
+  public class Editor {
+
+    private final SharedPreferences.Editor editor;
+
+    private Editor() {
+      editor = preferences.edit();
+    }
+
+    public void apply() {
+      editor.apply();
+    }
+
+    public Editor putBoolean(String key, boolean value) {
+      editor.putBoolean(getKey(key), value);
+      return this;
+    }
+
+    public Editor putFloat(String key, float value) {
+      editor.putFloat(getKey(key), value);
+      return this;
+    }
+
+    public Editor putInt(String key, int value) {
+      editor.putInt(getKey(key), value);
+      return this;
+    }
+
+    public Editor putLong(String key, long value) {
+      editor.putLong(getKey(key), value);
+      return this;
+    }
+
+    public Editor putString(String key, String value) {
+      editor.putString(getKey(key), value);
+      return this;
+    }
+
+    public Editor putStringSet(String key, Set<String> value) {
+      editor.putStringSet(getKey(key), value);
+      return this;
+    }
+  }
+
+  public Editor edit() {
+    return new Editor();
+  }
+
+  public boolean getBoolean(String key, boolean defValue) {
+    return getValue(key, defValue);
+  }
+
+  public float getFloat(String key, float defValue) {
+    return getValue(key, defValue);
+  }
+
+  public int getInt(String key, int defValue) {
+    return getValue(key, defValue);
+  }
+
+  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);
+  }
+
+  public Set<String> getStringSet(String key, Set<String> defValue) {
+    return getValue(key, defValue);
+  }
+
+  public boolean contains(String key) {
+    return preferences.contains(getKey(key));
+  }
+
+  private <T> T getValue(String key, T defValue) {
+    if (!contains(key)) {
+      return defValue;
+    }
+    Object object = preferences.getAll().get(getKey(key));
+    if (object == null) {
+      return defValue;
+    }
+    return (T) object;
+  }
+
+  private String getKey(String key) {
+    return sharedPrefsKeyPrefix + key + "_" + phoneAccountHandle.getId();
+  }
+}