1 files changed, 130 insertions, 0 deletions
diff --git a/cm/lib/main/java/org/cyanogenmod/platform/internal/CMAudioServiceBroker.java b/cm/lib/main/java/org/cyanogenmod/platform/internal/CMAudioServiceBroker.java
new file mode 100644
index 0000000..65ee040
--- /dev/null
+++ b/cm/lib/main/java/org/cyanogenmod/platform/internal/CMAudioServiceBroker.java
@@ -0,0 +1,130 @@
+/**
+ * Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.platform.internal;
+
+import org.cyanogenmod.platform.internal.common.BrokeredServiceConnection;
+
+import android.annotation.NonNull;
+import android.annotation.SdkConstant;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.util.Log;
+import android.util.Slog;
+
+import java.io.FileDescriptor;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import cyanogenmod.app.CMContextConstants;
+import cyanogenmod.media.AudioSessionInfo;
+import cyanogenmod.media.ICMAudioService;
+
+public class CMAudioServiceBroker extends BrokerableCMSystemService<ICMAudioService> {
+
+    private static final String TAG = "CMAudioServiceBroker";
+    private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
+
+    private final Context mContext;
+
+    private static final ComponentName TARGET_IMPLEMENTATION_COMPONENT =
+            new ComponentName("org.cyanogenmod.cmaudio.service",
+                    "org.cyanogenmod.cmaudio.service.CMAudioService");
+
+    public CMAudioServiceBroker(Context context) {
+        super(context);
+        mContext = context;
+    }
+
+    @Override
+    public void onBootPhase(int phase) {
+        super.onBootPhase(phase);
+        if (phase == PHASE_THIRD_PARTY_APPS_CAN_START) {
+            publishBinderService(CMContextConstants.CM_AUDIO_SERVICE, new BinderService());
+        }
+    }
+
+    @Override
+    public void onStart() {
+        if (DEBUG) Slog.d(TAG, "service started");
+    }
+
+    @Override
+    protected ICMAudioService getIBinderAsIInterface(@NonNull IBinder service) {
+        return ICMAudioService.Stub.asInterface(service);
+    }
+
+    @Override
+    protected ICMAudioService getDefaultImplementation() {
+        return mServiceStubForFailure;
+    }
+
+    @Override
+    protected ComponentName getServiceComponent() {
+        return TARGET_IMPLEMENTATION_COMPONENT;
+    }
+
+    private void checkPermission() {
+        mContext.enforceCallingOrSelfPermission(
+                cyanogenmod.platform.Manifest.permission.OBSERVE_AUDIO_SESSIONS, null);
+    }
+
+    @Override
+    public String getFeatureDeclaration() {
+        return CMContextConstants.Features.AUDIO;
+    }
+
+    private final ICMAudioService mServiceStubForFailure = new ICMAudioService.Stub() {
+        @Override
+        public List<AudioSessionInfo> listAudioSessions(int streamType) throws RemoteException {
+            checkPermission();
+            return Collections.emptyList();
+        }
+    };
+
+    private final class BinderService extends ICMAudioService.Stub {
+        @Override
+        public List<AudioSessionInfo> listAudioSessions(int streamType) throws RemoteException {
+            checkPermission();
+            return getBrokeredService().listAudioSessions(streamType);
+        }
+
+        @Override
+        public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
+            mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);
+
+            pw.println();
+            pw.println("CMAudio Service State:");
+            try {
+                List<AudioSessionInfo> sessions = listAudioSessions(-1);
+                if (sessions.size() > 0) {
+                    pw.println("  Audio sessions:");
+                    for (AudioSessionInfo info : sessions) {
+                        pw.println("   " + info.toString());
+                    }
+                } else {
+                    pw.println("  No active audio sessions");
+                }
+            } catch (RemoteException e) {
+                // nothing
+            }
+        }
+    }
+}