Add RTT transcript to call details.

1. Save RTT transcript when call is destroyed
2. Show RTT transcript link when it's available

Bug: 67596257,77717594
Test: manual
PiperOrigin-RevId: 192673172
Change-Id: If541ad9137c965166548d2fb449e835b95566727

1 files changed, 97 insertions, 0 deletions

diff --git a/java/com/android/dialer/rtt/RttTranscriptUtil.java b/java/com/android/dialer/rtt/RttTranscriptUtil.java
new file mode 100644
index 000000000..e55d2ea55
--- /dev/null
+++ b/java/com/android/dialer/rtt/RttTranscriptUtil.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2018 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.rtt;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.support.annotation.WorkerThread;
+import com.android.dialer.common.Assert;
+import com.android.dialer.rtt.RttTranscriptContract.RttTranscriptColumn;
+import com.google.protobuf.InvalidProtocolBufferException;
+
+/** Util class to save and load RTT transcript. */
+public final class RttTranscriptUtil {
+
+  private final RttTranscriptDatabaseHelper databaseHelper;
+
+  public RttTranscriptUtil(Context context) {
+    databaseHelper = new RttTranscriptDatabaseHelper(context);
+  }
+
+  /** @return true if there is RTT transcript available. */
+  @WorkerThread
+  public boolean checkRttTranscriptAvailability(String transcriptId) {
+    Assert.isWorkerThread();
+    try (Cursor cursor =
+        databaseHelper
+            .getReadableDatabase()
+            .query(
+                RttTranscriptDatabaseHelper.TABLE,
+                new String[] {RttTranscriptColumn.TRANSCRIPT_ID},
+                RttTranscriptColumn.TRANSCRIPT_ID + " = ?",
+                new String[] {transcriptId},
+                null,
+                null,
+                null)) {
+      if (cursor != null && cursor.moveToFirst()) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+  }
+
+  @WorkerThread
+  public RttTranscript getRttTranscript(String transcriptId) {
+    Assert.isWorkerThread();
+    try (Cursor cursor =
+        databaseHelper
+            .getReadableDatabase()
+            .query(
+                RttTranscriptDatabaseHelper.TABLE,
+                new String[] {RttTranscriptColumn.TRANSCRIPT_DATA},
+                RttTranscriptColumn.TRANSCRIPT_ID + " = ?",
+                new String[] {transcriptId},
+                null,
+                null,
+                null)) {
+      if (cursor != null && cursor.moveToFirst()) {
+        try {
+          return RttTranscript.parseFrom(cursor.getBlob(0));
+        } catch (InvalidProtocolBufferException e) {
+          throw new RuntimeException("Parse failed for RTT transcript", e);
+        }
+      } else {
+        return null;
+      }
+    }
+  }
+
+  @WorkerThread
+  public void saveRttTranscript(RttTranscript rttTranscript) {
+    Assert.isWorkerThread();
+    ContentValues value = new ContentValues();
+    value.put(RttTranscriptColumn.TRANSCRIPT_ID, rttTranscript.getId());
+    value.put(RttTranscriptColumn.TRANSCRIPT_DATA, rttTranscript.toByteArray());
+    long id =
+        databaseHelper.getWritableDatabase().insert(RttTranscriptDatabaseHelper.TABLE, null, value);
+    if (id < 0) {
+      throw new RuntimeException("Failed to save RTT transcript");
+    }
+  }
+}