private void findAndOpenCamera()

in HdrViewfinder/Application/src/main/java/com/example/android/hdrviewfinder/HdrViewfinderActivity.java [376:430]
44 lines of code
11 McCabe index (conditional complexity)

    private void findAndOpenCamera() {
        boolean cameraPermissions = checkCameraPermissions();
        if (!cameraPermissions) {
            return;
        }
        String errorMessage = "Unknown error";
        boolean foundCamera = false;
        initializeCamera();
        if (mCameraOps != null) {
            try {
                // Find first back-facing camera that has necessary capability.
                String[] cameraIds = mCameraManager.getCameraIdList();
                for (String id : cameraIds) {
                    CameraCharacteristics info = mCameraManager.getCameraCharacteristics(id);
                    Integer facing = info.get(CameraCharacteristics.LENS_FACING);
                    Integer level = info.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
                    boolean hasFullLevel = Objects.equals(level,
                            CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL);

                    int[] capabilities = info
                            .get(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES);
                    Integer syncLatency = info.get(CameraCharacteristics.SYNC_MAX_LATENCY);
                    boolean hasManualControl = hasCapability(capabilities,
                            CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR);
                    boolean hasEnoughCapability = hasManualControl && Objects.equals(syncLatency,
                            CameraCharacteristics.SYNC_MAX_LATENCY_PER_FRAME_CONTROL);

                    // All these are guaranteed by
                    // CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL, but checking
                    // for only the things we care about expands range of devices we can run on.
                    // We want:
                    //  - Back-facing camera
                    //  - Manual sensor control
                    //  - Per-frame synchronization (so that exposure can be changed every frame)
                    if (Objects.equals(facing, CameraCharacteristics.LENS_FACING_BACK) &&
                            (hasFullLevel || hasEnoughCapability)) {
                        // Found suitable camera - get info, open, and set up outputs
                        mCameraInfo = info;
                        mCameraOps.openCamera(id);
                        configureSurfaces();
                        foundCamera = true;
                        break;
                    }
                }
                if (!foundCamera) {
                    errorMessage = getString(R.string.camera_no_good);
                }
            } catch (CameraAccessException e) {
                errorMessage = getErrorString(e);
            }
            if (!foundCamera) {
                showErrorDialog(errorMessage);
            }
        }
    }