telecomm/java/android/telecom/ConnectionRequest.java - LeafOS-Project/android_frameworks_base - Gitiles

 /*
  * Copyright (C) 2014 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 android.telecom;

 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.ParcelFileDescriptor;
 import android.os.Parcelable;

 /**
  * Simple data container encapsulating a request to some entity to
  * create a new {@link Connection}.
  */
 public final class ConnectionRequest implements Parcelable {

     /**
      * Builder class for {@link ConnectionRequest}
      * @hide
      */
     @TestApi // For convenience in CTS tests
     public static final class Builder {
         private PhoneAccountHandle mAccountHandle;
         private Uri mAddress;
         private Bundle mExtras;
         private int mVideoState = VideoProfile.STATE_AUDIO_ONLY;
         private String mTelecomCallId;
         private boolean mShouldShowIncomingCallUi = false;
         private ParcelFileDescriptor mRttPipeToInCall;
         private ParcelFileDescriptor mRttPipeFromInCall;

         public Builder() { }

         /**
          * Sets the phone account handle for the resulting {@link ConnectionRequest}
          * @param accountHandle The accountHandle which should be used to place the call.
          */
         public @NonNull Builder setAccountHandle(@NonNull PhoneAccountHandle accountHandle) {
             this.mAccountHandle = accountHandle;
             return this;
         }

         /**
          * Sets the address for the resulting {@link ConnectionRequest}
          * @param address The address(e.g., phone number) to which the {@link Connection} is to
          *                connect.
          */
         public @NonNull Builder setAddress(@NonNull Uri address) {
             this.mAddress = address;
             return this;
         }

         /**
          * Sets the extras bundle for the resulting {@link ConnectionRequest}
          * @param extras Application-specific extra data.
          */
         public @NonNull Builder setExtras(@NonNull Bundle extras) {
             this.mExtras = extras;
             return this;
         }

         /**
          * Sets the video state for the resulting {@link ConnectionRequest}
          * @param videoState Determines the video state for the connection.
          */
         public @NonNull Builder setVideoState(int videoState) {
             this.mVideoState = videoState;
             return this;
         }

         /**
          * Sets the Telecom call ID for the resulting {@link ConnectionRequest}
          * @param telecomCallId The telecom call ID.
          */
         public @NonNull Builder setTelecomCallId(@NonNull String telecomCallId) {
             this.mTelecomCallId = telecomCallId;
             return this;
         }

         /**
          * Sets shouldShowIncomingUi for the resulting {@link ConnectionRequest}
          * @param shouldShowIncomingCallUi For a self-managed {@link ConnectionService}, will be
          *                                 {@code true} if the {@link ConnectionService} should show
          *                                 its own incoming call UI for an incoming call.  When
          *                                 {@code false}, Telecom shows the incoming call UI.
          */
         public @NonNull Builder setShouldShowIncomingCallUi(boolean shouldShowIncomingCallUi) {
             this.mShouldShowIncomingCallUi = shouldShowIncomingCallUi;
             return this;
         }

         /**
          * Sets the RTT pipe for transferring text into the {@link ConnectionService} for the
          * resulting {@link ConnectionRequest}
          * @param rttPipeFromInCall The data pipe to read from.
          */
         public @NonNull Builder setRttPipeFromInCall(
                 @NonNull ParcelFileDescriptor rttPipeFromInCall) {
             this.mRttPipeFromInCall = rttPipeFromInCall;
             return this;
         }

         /**
          * Sets the RTT pipe for transferring text out of {@link ConnectionService} for the
          * resulting {@link ConnectionRequest}
          * @param rttPipeToInCall The data pipe to write to.
          */
         public @NonNull Builder setRttPipeToInCall(@NonNull ParcelFileDescriptor rttPipeToInCall) {
             this.mRttPipeToInCall = rttPipeToInCall;
             return this;
         }

         /**
          * Build the {@link ConnectionRequest}
          * @return Result of the builder
          */
         public @NonNull ConnectionRequest build() {
             return new ConnectionRequest(
                     mAccountHandle,
                     mAddress,
                     mExtras,
                     mVideoState,
                     mTelecomCallId,
                     mShouldShowIncomingCallUi,
                     mRttPipeFromInCall,
                     mRttPipeToInCall);
         }
     }

     private final PhoneAccountHandle mAccountHandle;
     private final Uri mAddress;
     private final Bundle mExtras;
     private final int mVideoState;
     private final String mTelecomCallId;
     private final boolean mShouldShowIncomingCallUi;
     private final ParcelFileDescriptor mRttPipeToInCall;
     private final ParcelFileDescriptor mRttPipeFromInCall;
     // Cached return value of getRttTextStream -- we don't want to wrap it more than once.
     private Connection.RttTextStream mRttTextStream;

     /**
      * @param accountHandle The accountHandle which should be used to place the call.
      * @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
      * @param extras Application-specific extra data.
      */
     public ConnectionRequest(
             PhoneAccountHandle accountHandle,
             Uri handle,
             Bundle extras) {
         this(accountHandle, handle, extras, VideoProfile.STATE_AUDIO_ONLY, null, false, null, null);
     }

     /**
      * @param accountHandle The accountHandle which should be used to place the call.
      * @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
      * @param extras Application-specific extra data.
      * @param videoState Determines the video state for the connection.
      */
     public ConnectionRequest(
             PhoneAccountHandle accountHandle,
             Uri handle,
             Bundle extras,
             int videoState) {
         this(accountHandle, handle, extras, videoState, null, false, null, null);
     }

     /**
      * @param accountHandle The accountHandle which should be used to place the call.
      * @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
      * @param extras Application-specific extra data.
      * @param videoState Determines the video state for the connection.
      * @param telecomCallId The telecom call ID.
      * @param shouldShowIncomingCallUi For a self-managed {@link ConnectionService}, will be
      *                                 {@code true} if the {@link ConnectionService} should show its
      *                                 own incoming call UI for an incoming call.  When
      *                                 {@code false}, Telecom shows the incoming call UI.
      * @hide
      */
     public ConnectionRequest(
             PhoneAccountHandle accountHandle,
             Uri handle,
             Bundle extras,
             int videoState,
             String telecomCallId,
             boolean shouldShowIncomingCallUi) {
         this(accountHandle, handle, extras, videoState, telecomCallId,
                 shouldShowIncomingCallUi, null, null);
     }

     private ConnectionRequest(
             PhoneAccountHandle accountHandle,
             Uri handle,
             Bundle extras,
             int videoState,
             String telecomCallId,
             boolean shouldShowIncomingCallUi,
             ParcelFileDescriptor rttPipeFromInCall,
             ParcelFileDescriptor rttPipeToInCall) {
         mAccountHandle = accountHandle;
         mAddress = handle;
         mExtras = extras;
         mVideoState = videoState;
         mTelecomCallId = telecomCallId;
         mShouldShowIncomingCallUi = shouldShowIncomingCallUi;
         mRttPipeFromInCall = rttPipeFromInCall;
         mRttPipeToInCall = rttPipeToInCall;
     }

     private ConnectionRequest(Parcel in) {
         mAccountHandle = in.readParcelable(getClass().getClassLoader());
         mAddress = in.readParcelable(getClass().getClassLoader());
         mExtras = in.readParcelable(getClass().getClassLoader());
         mVideoState = in.readInt();
         mTelecomCallId = in.readString();
         mShouldShowIncomingCallUi = in.readInt() == 1;
         mRttPipeFromInCall = in.readParcelable(getClass().getClassLoader());
         mRttPipeToInCall = in.readParcelable(getClass().getClassLoader());
     }

     /**
      * The account which should be used to place the call.
      */
     public PhoneAccountHandle getAccountHandle() { return mAccountHandle; }

     /**
      * The handle (e.g., phone number) to which the {@link Connection} is to connect.
      */
     public Uri getAddress() { return mAddress; }

     /**
      * Application-specific extra data. Used for passing back information from an incoming
      * call {@code Intent}, and for any proprietary extensions arranged between a client
      * and servant {@code ConnectionService} which agree on a vocabulary for such data.
      */
     public Bundle getExtras() { return mExtras; }

     /**
      * Describes the video states supported by the client requesting the connection.
      * Valid values: {@link VideoProfile#STATE_AUDIO_ONLY},
      * {@link VideoProfile#STATE_BIDIRECTIONAL},
      * {@link VideoProfile#STATE_TX_ENABLED},
      * {@link VideoProfile#STATE_RX_ENABLED}.
      *
      * @return The video state for the connection.
      */
     public int getVideoState() {
         return mVideoState;
     }

     /**
      * Returns the internal Telecom ID associated with the connection request.
      *
      * @return The Telecom ID.
      * @hide
      */
     @SystemApi
     @TestApi
     public @Nullable String getTelecomCallId() {
         return mTelecomCallId;
     }

     /**
      * For a self-managed {@link ConnectionService}, indicates for an incoming call whether the
      * {@link ConnectionService} should show its own incoming call UI for an incoming call.
      *
      * @return {@code true} if the {@link ConnectionService} should show its own incoming call UI.
      * When {@code false}, Telecom shows the incoming call UI for the call.
      * @hide
      */
     public boolean shouldShowIncomingCallUi() {
         return mShouldShowIncomingCallUi;
     }

     /**
      * Gets the {@link ParcelFileDescriptor} that is used to send RTT text from the connection
      * service to the in-call UI. In order to obtain an
      * {@link java.io.InputStream} from this {@link ParcelFileDescriptor}, use
      * {@link android.os.ParcelFileDescriptor.AutoCloseInputStream}.
      * Only text data encoded using UTF-8 should be written into this {@link ParcelFileDescriptor}.
      * @return The {@link ParcelFileDescriptor} that should be used for communication.
      * Do not un-hide -- only for use by Telephony
      * @hide
      */
     public ParcelFileDescriptor getRttPipeToInCall() {
         return mRttPipeToInCall;
     }

     /**
      * Gets the {@link ParcelFileDescriptor} that is used to send RTT text from the in-call UI to
      * the connection service. In order to obtain an
      * {@link java.io.OutputStream} from this {@link ParcelFileDescriptor}, use
      * {@link android.os.ParcelFileDescriptor.AutoCloseOutputStream}.
      * The contents of this {@link ParcelFileDescriptor} will consist solely of text encoded in
      * UTF-8.
      * @return The {@link ParcelFileDescriptor} that should be used for communication
      * Do not un-hide -- only for use by Telephony
      * @hide
      */
     public ParcelFileDescriptor getRttPipeFromInCall() {
         return mRttPipeFromInCall;
     }

     /**
      * Gets the {@link android.telecom.Connection.RttTextStream} object that should be used to
      * send and receive RTT text to/from the in-call app.
      * @return An instance of {@link android.telecom.Connection.RttTextStream}, or {@code null}
      * if this connection request is not requesting an RTT session upon connection establishment.
      */
     public Connection.RttTextStream getRttTextStream() {
         if (isRequestingRtt()) {
             if (mRttTextStream == null) {
                 mRttTextStream = new Connection.RttTextStream(mRttPipeToInCall, mRttPipeFromInCall);
             }
             return mRttTextStream;
         } else {
             return null;
         }
     }

     /**
      * Convenience method for determining whether the ConnectionRequest is requesting an RTT session
      * @return {@code true} if RTT is requested, {@code false} otherwise.
      */
     public boolean isRequestingRtt() {
         return mRttPipeFromInCall != null && mRttPipeToInCall != null;
     }

     @Override
     public String toString() {
         return String.format("ConnectionRequest %s %s",
                 mAddress == null
                         ? Uri.EMPTY
                         : Connection.toLogSafePhoneNumber(mAddress.toString()),
                 bundleToString(mExtras));
     }

     private static String bundleToString(Bundle extras){
         if (extras == null) {
             return "";
         }
         StringBuilder sb = new StringBuilder();
         sb.append("Bundle[");
         for (String key : extras.keySet()) {
             sb.append(key);
             sb.append("=");
             switch (key) {
                 case TelecomManager.EXTRA_INCOMING_CALL_ADDRESS:
                 case TelecomManager.EXTRA_UNKNOWN_CALL_HANDLE:
                     sb.append(Log.pii(extras.get(key)));
                     break;
                 default:
                     sb.append(extras.get(key));
                     break;
             }
             sb.append(", ");
         }
         sb.append("]");
         return sb.toString();
     }

     public static final @android.annotation.NonNull Creator<ConnectionRequest> CREATOR = new Creator<ConnectionRequest> () {
         @Override
         public ConnectionRequest createFromParcel(Parcel source) {
             return new ConnectionRequest(source);
         }

         @Override
         public ConnectionRequest[] newArray(int size) {
             return new ConnectionRequest[size];
         }
     };

     /**
      * {@inheritDoc}
      */
     @Override
     public int describeContents() {
         return 0;
     }

     @Override
     public void writeToParcel(Parcel destination, int flags) {
         destination.writeParcelable(mAccountHandle, 0);
         destination.writeParcelable(mAddress, 0);
         destination.writeParcelable(mExtras, 0);
         destination.writeInt(mVideoState);
         destination.writeString(mTelecomCallId);
         destination.writeInt(mShouldShowIncomingCallUi ? 1 : 0);
         destination.writeParcelable(mRttPipeFromInCall, 0);
         destination.writeParcelable(mRttPipeToInCall, 0);
     }
 }
	/*
	* Copyright (C) 2014 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 android.telecom;

	import android.annotation.NonNull;
	import android.annotation.Nullable;
	import android.annotation.SystemApi;
	import android.annotation.TestApi;
	import android.net.Uri;
	import android.os.Bundle;
	import android.os.Parcel;
	import android.os.ParcelFileDescriptor;
	import android.os.Parcelable;

	/**
	* Simple data container encapsulating a request to some entity to
	* create a new {@link Connection}.
	*/
	public final class ConnectionRequest implements Parcelable {

	/**
	* Builder class for {@link ConnectionRequest}
	* @hide
	*/
	@TestApi // For convenience in CTS tests
	public static final class Builder {
	private PhoneAccountHandle mAccountHandle;
	private Uri mAddress;
	private Bundle mExtras;
	private int mVideoState = VideoProfile.STATE_AUDIO_ONLY;
	private String mTelecomCallId;
	private boolean mShouldShowIncomingCallUi = false;
	private ParcelFileDescriptor mRttPipeToInCall;
	private ParcelFileDescriptor mRttPipeFromInCall;

	public Builder() { }

	/**
	* Sets the phone account handle for the resulting {@link ConnectionRequest}
	* @param accountHandle The accountHandle which should be used to place the call.
	*/
	public @NonNull Builder setAccountHandle(@NonNull PhoneAccountHandle accountHandle) {
	this.mAccountHandle = accountHandle;
	return this;
	}

	/**
	* Sets the address for the resulting {@link ConnectionRequest}
	* @param address The address(e.g., phone number) to which the {@link Connection} is to
	* connect.
	*/
	public @NonNull Builder setAddress(@NonNull Uri address) {
	this.mAddress = address;
	return this;
	}

	/**
	* Sets the extras bundle for the resulting {@link ConnectionRequest}
	* @param extras Application-specific extra data.
	*/
	public @NonNull Builder setExtras(@NonNull Bundle extras) {
	this.mExtras = extras;
	return this;
	}

	/**
	* Sets the video state for the resulting {@link ConnectionRequest}
	* @param videoState Determines the video state for the connection.
	*/
	public @NonNull Builder setVideoState(int videoState) {
	this.mVideoState = videoState;
	return this;
	}

	/**
	* Sets the Telecom call ID for the resulting {@link ConnectionRequest}
	* @param telecomCallId The telecom call ID.
	*/
	public @NonNull Builder setTelecomCallId(@NonNull String telecomCallId) {
	this.mTelecomCallId = telecomCallId;
	return this;
	}

	/**
	* Sets shouldShowIncomingUi for the resulting {@link ConnectionRequest}
	* @param shouldShowIncomingCallUi For a self-managed {@link ConnectionService}, will be
	* {@code true} if the {@link ConnectionService} should show
	* its own incoming call UI for an incoming call. When
	* {@code false}, Telecom shows the incoming call UI.
	*/
	public @NonNull Builder setShouldShowIncomingCallUi(boolean shouldShowIncomingCallUi) {
	this.mShouldShowIncomingCallUi = shouldShowIncomingCallUi;
	return this;
	}

	/**
	* Sets the RTT pipe for transferring text into the {@link ConnectionService} for the
	* resulting {@link ConnectionRequest}
	* @param rttPipeFromInCall The data pipe to read from.
	*/
	public @NonNull Builder setRttPipeFromInCall(
	@NonNull ParcelFileDescriptor rttPipeFromInCall) {
	this.mRttPipeFromInCall = rttPipeFromInCall;
	return this;
	}

	/**
	* Sets the RTT pipe for transferring text out of {@link ConnectionService} for the
	* resulting {@link ConnectionRequest}
	* @param rttPipeToInCall The data pipe to write to.
	*/
	public @NonNull Builder setRttPipeToInCall(@NonNull ParcelFileDescriptor rttPipeToInCall) {
	this.mRttPipeToInCall = rttPipeToInCall;
	return this;
	}

	/**
	* Build the {@link ConnectionRequest}
	* @return Result of the builder
	*/
	public @NonNull ConnectionRequest build() {
	return new ConnectionRequest(
	mAccountHandle,
	mAddress,
	mExtras,
	mVideoState,
	mTelecomCallId,
	mShouldShowIncomingCallUi,
	mRttPipeFromInCall,
	mRttPipeToInCall);
	}
	}

	private final PhoneAccountHandle mAccountHandle;
	private final Uri mAddress;
	private final Bundle mExtras;
	private final int mVideoState;
	private final String mTelecomCallId;
	private final boolean mShouldShowIncomingCallUi;
	private final ParcelFileDescriptor mRttPipeToInCall;
	private final ParcelFileDescriptor mRttPipeFromInCall;
	// Cached return value of getRttTextStream -- we don't want to wrap it more than once.
	private Connection.RttTextStream mRttTextStream;

	/**
	* @param accountHandle The accountHandle which should be used to place the call.
	* @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
	* @param extras Application-specific extra data.
	*/
	public ConnectionRequest(
	PhoneAccountHandle accountHandle,
	Uri handle,
	Bundle extras) {
	this(accountHandle, handle, extras, VideoProfile.STATE_AUDIO_ONLY, null, false, null, null);
	}

	/**
	* @param accountHandle The accountHandle which should be used to place the call.
	* @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
	* @param extras Application-specific extra data.
	* @param videoState Determines the video state for the connection.
	*/
	public ConnectionRequest(
	PhoneAccountHandle accountHandle,
	Uri handle,
	Bundle extras,
	int videoState) {
	this(accountHandle, handle, extras, videoState, null, false, null, null);
	}

	/**
	* @param accountHandle The accountHandle which should be used to place the call.
	* @param handle The handle (e.g., phone number) to which the {@link Connection} is to connect.
	* @param extras Application-specific extra data.
	* @param videoState Determines the video state for the connection.
	* @param telecomCallId The telecom call ID.
	* @param shouldShowIncomingCallUi For a self-managed {@link ConnectionService}, will be
	* {@code true} if the {@link ConnectionService} should show its
	* own incoming call UI for an incoming call. When
	* {@code false}, Telecom shows the incoming call UI.
	* @hide
	*/
	public ConnectionRequest(
	PhoneAccountHandle accountHandle,
	Uri handle,
	Bundle extras,
	int videoState,
	String telecomCallId,
	boolean shouldShowIncomingCallUi) {
	this(accountHandle, handle, extras, videoState, telecomCallId,
	shouldShowIncomingCallUi, null, null);
	}

	private ConnectionRequest(
	PhoneAccountHandle accountHandle,
	Uri handle,
	Bundle extras,
	int videoState,
	String telecomCallId,
	boolean shouldShowIncomingCallUi,
	ParcelFileDescriptor rttPipeFromInCall,
	ParcelFileDescriptor rttPipeToInCall) {
	mAccountHandle = accountHandle;
	mAddress = handle;
	mExtras = extras;
	mVideoState = videoState;
	mTelecomCallId = telecomCallId;
	mShouldShowIncomingCallUi = shouldShowIncomingCallUi;
	mRttPipeFromInCall = rttPipeFromInCall;
	mRttPipeToInCall = rttPipeToInCall;
	}

	private ConnectionRequest(Parcel in) {
	mAccountHandle = in.readParcelable(getClass().getClassLoader());
	mAddress = in.readParcelable(getClass().getClassLoader());
	mExtras = in.readParcelable(getClass().getClassLoader());
	mVideoState = in.readInt();
	mTelecomCallId = in.readString();
	mShouldShowIncomingCallUi = in.readInt() == 1;
	mRttPipeFromInCall = in.readParcelable(getClass().getClassLoader());
	mRttPipeToInCall = in.readParcelable(getClass().getClassLoader());
	}

	/**
	* The account which should be used to place the call.
	*/
	public PhoneAccountHandle getAccountHandle() { return mAccountHandle; }

	/**
	* The handle (e.g., phone number) to which the {@link Connection} is to connect.
	*/
	public Uri getAddress() { return mAddress; }

	/**
	* Application-specific extra data. Used for passing back information from an incoming
	* call {@code Intent}, and for any proprietary extensions arranged between a client
	* and servant {@code ConnectionService} which agree on a vocabulary for such data.
	*/
	public Bundle getExtras() { return mExtras; }

	/**
	* Describes the video states supported by the client requesting the connection.
	* Valid values: {@link VideoProfile#STATE_AUDIO_ONLY},
	* {@link VideoProfile#STATE_BIDIRECTIONAL},
	* {@link VideoProfile#STATE_TX_ENABLED},
	* {@link VideoProfile#STATE_RX_ENABLED}.
	*
	* @return The video state for the connection.
	*/
	public int getVideoState() {
	return mVideoState;
	}

	/**
	* Returns the internal Telecom ID associated with the connection request.
	*
	* @return The Telecom ID.
	* @hide
	*/
	@SystemApi
	@TestApi
	public @Nullable String getTelecomCallId() {
	return mTelecomCallId;
	}

	/**
	* For a self-managed {@link ConnectionService}, indicates for an incoming call whether the
	* {@link ConnectionService} should show its own incoming call UI for an incoming call.
	*
	* @return {@code true} if the {@link ConnectionService} should show its own incoming call UI.
	* When {@code false}, Telecom shows the incoming call UI for the call.
	* @hide
	*/
	public boolean shouldShowIncomingCallUi() {
	return mShouldShowIncomingCallUi;
	}

	/**
	* Gets the {@link ParcelFileDescriptor} that is used to send RTT text from the connection
	* service to the in-call UI. In order to obtain an
	* {@link java.io.InputStream} from this {@link ParcelFileDescriptor}, use
	* {@link android.os.ParcelFileDescriptor.AutoCloseInputStream}.
	* Only text data encoded using UTF-8 should be written into this {@link ParcelFileDescriptor}.
	* @return The {@link ParcelFileDescriptor} that should be used for communication.
	* Do not un-hide -- only for use by Telephony
	* @hide
	*/
	public ParcelFileDescriptor getRttPipeToInCall() {
	return mRttPipeToInCall;
	}

	/**
	* Gets the {@link ParcelFileDescriptor} that is used to send RTT text from the in-call UI to
	* the connection service. In order to obtain an
	* {@link java.io.OutputStream} from this {@link ParcelFileDescriptor}, use
	* {@link android.os.ParcelFileDescriptor.AutoCloseOutputStream}.
	* The contents of this {@link ParcelFileDescriptor} will consist solely of text encoded in
	* UTF-8.
	* @return The {@link ParcelFileDescriptor} that should be used for communication
	* Do not un-hide -- only for use by Telephony
	* @hide
	*/
	public ParcelFileDescriptor getRttPipeFromInCall() {
	return mRttPipeFromInCall;
	}

	/**
	* Gets the {@link android.telecom.Connection.RttTextStream} object that should be used to
	* send and receive RTT text to/from the in-call app.
	* @return An instance of {@link android.telecom.Connection.RttTextStream}, or {@code null}
	* if this connection request is not requesting an RTT session upon connection establishment.
	*/
	public Connection.RttTextStream getRttTextStream() {
	if (isRequestingRtt()) {
	if (mRttTextStream == null) {
	mRttTextStream = new Connection.RttTextStream(mRttPipeToInCall, mRttPipeFromInCall);
	}
	return mRttTextStream;
	} else {
	return null;
	}
	}

	/**
	* Convenience method for determining whether the ConnectionRequest is requesting an RTT session
	* @return {@code true} if RTT is requested, {@code false} otherwise.
	*/
	public boolean isRequestingRtt() {
	return mRttPipeFromInCall != null && mRttPipeToInCall != null;
	}

	@Override
	public String toString() {
	return String.format("ConnectionRequest %s %s",
	mAddress == null
	? Uri.EMPTY
	: Connection.toLogSafePhoneNumber(mAddress.toString()),
	bundleToString(mExtras));
	}

	private static String bundleToString(Bundle extras){
	if (extras == null) {
	return "";
	}
	StringBuilder sb = new StringBuilder();
	sb.append("Bundle[");
	for (String key : extras.keySet()) {
	sb.append(key);
	sb.append("=");
	switch (key) {
	case TelecomManager.EXTRA_INCOMING_CALL_ADDRESS:
	case TelecomManager.EXTRA_UNKNOWN_CALL_HANDLE:
	sb.append(Log.pii(extras.get(key)));
	break;
	default:
	sb.append(extras.get(key));
	break;
	}
	sb.append(", ");
	}
	sb.append("]");
	return sb.toString();
	}

	public static final @android.annotation.NonNull Creator<ConnectionRequest> CREATOR = new Creator<ConnectionRequest> () {
	@Override
	public ConnectionRequest createFromParcel(Parcel source) {
	return new ConnectionRequest(source);
	}

	@Override
	public ConnectionRequest[] newArray(int size) {
	return new ConnectionRequest[size];
	}
	};

	/**
	* {@inheritDoc}
	*/
	@Override
	public int describeContents() {
	return 0;
	}

	@Override
	public void writeToParcel(Parcel destination, int flags) {
	destination.writeParcelable(mAccountHandle, 0);
	destination.writeParcelable(mAddress, 0);
	destination.writeParcelable(mExtras, 0);
	destination.writeInt(mVideoState);
	destination.writeString(mTelecomCallId);
	destination.writeInt(mShouldShowIncomingCallUi ? 1 : 0);
	destination.writeParcelable(mRttPipeFromInCall, 0);
	destination.writeParcelable(mRttPipeToInCall, 0);
	}
	}