/*
 * Copyright (C) 2007 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.os;

import android.util.ArrayMap;
import android.util.SparseArray;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * A mapping from String values to various Parcelable types.
 *
 */
public final class Bundle extends CommonBundle {
    public static final Bundle EMPTY;
    static final Parcel EMPTY_PARCEL;

    static {
        EMPTY = new Bundle();
        EMPTY.mMap = ArrayMap.EMPTY;
        EMPTY_PARCEL = CommonBundle.EMPTY_PARCEL;
    }

    private boolean mHasFds = false;
    private boolean mFdsKnown = true;
    private boolean mAllowFds = true;

    /**
     * Constructs a new, empty Bundle.
     */
    public Bundle() {
        super();
    }

    /**
     * Constructs a Bundle whose data is stored as a Parcel.  The data
     * will be unparcelled on first contact, using the assigned ClassLoader.
     *
     * @param parcelledData a Parcel containing a Bundle
     */
    Bundle(Parcel parcelledData) {
        super(parcelledData);

        mHasFds = mParcelledData.hasFileDescriptors();
        mFdsKnown = true;
    }

    /* package */ Bundle(Parcel parcelledData, int length) {
        super(parcelledData, length);

        mHasFds = mParcelledData.hasFileDescriptors();
        mFdsKnown = true;
    }

    /**
     * Constructs a new, empty Bundle that uses a specific ClassLoader for
     * instantiating Parcelable and Serializable objects.
     *
     * @param loader An explicit ClassLoader to use when instantiating objects
     * inside of the Bundle.
     */
    public Bundle(ClassLoader loader) {
        super(loader);
    }

    /**
     * Constructs a new, empty Bundle sized to hold the given number of
     * elements. The Bundle will grow as needed.
     *
     * @param capacity the initial capacity of the Bundle
     */
    public Bundle(int capacity) {
        super(capacity);
    }

    /**
     * Constructs a Bundle containing a copy of the mappings from the given
     * Bundle.
     *
     * @param b a Bundle to be copied.
     */
    public Bundle(Bundle b) {
        super(b);

        mHasFds = b.mHasFds;
        mFdsKnown = b.mFdsKnown;
    }

    /**
     * Constructs a Bundle containing a copy of the mappings from the given
     * PersistableBundle.
     *
     * @param b a Bundle to be copied.
     */
    public Bundle(PersistableBundle b) {
        super(b);
    }

    /**
     * Make a Bundle for a single key/value pair.
     *
     * @hide
     */
    public static Bundle forPair(String key, String value) {
        Bundle b = new Bundle(1);
        b.putString(key, value);
        return b;
    }

    /**
     * @hide
     */
    @Override
    public String getPairValue() {
        return super.getPairValue();
    }

    /**
     * Changes the ClassLoader this Bundle uses when instantiating objects.
     *
     * @param loader An explicit ClassLoader to use when instantiating objects
     * inside of the Bundle.
     */
    @Override
    public void setClassLoader(ClassLoader loader) {
        super.setClassLoader(loader);
    }

    /**
     * Return the ClassLoader currently associated with this Bundle.
     */
    @Override
    public ClassLoader getClassLoader() {
        return super.getClassLoader();
    }

    /** @hide */
    public boolean setAllowFds(boolean allowFds) {
        boolean orig = mAllowFds;
        mAllowFds = allowFds;
        return orig;
    }

    /**
     * Clones the current Bundle. The internal map is cloned, but the keys and
     * values to which it refers are copied by reference.
     */
    @Override
    public Object clone() {
        return new Bundle(this);
    }

    /**
     * @hide
     */
    @Override
    public boolean isParcelled() {
        return super.isParcelled();
    }

    /**
     * Returns the number of mappings contained in this Bundle.
     *
     * @return the number of mappings as an int.
     */
    @Override
    public int size() {
        return super.size();
    }

    /**
     * Returns true if the mapping of this Bundle is empty, false otherwise.
     */
    @Override
    public boolean isEmpty() {
        return super.isEmpty();
    }

    /**
     * Removes all elements from the mapping of this Bundle.
     */
    @Override
    public void clear() {
        super.clear();

        mHasFds = false;
        mFdsKnown = true;
    }

    /**
     * Returns true if the given key is contained in the mapping
     * of this Bundle.
     *
     * @param key a String key
     * @return true if the key is part of the mapping, false otherwise
     */
    @Override
    public boolean containsKey(String key) {
        return super.containsKey(key);
    }

    /**
     * Returns the entry with the given key as an object.
     *
     * @param key a String key
     * @return an Object, or null
     */
    @Override
    public Object get(String key) {
        return super.get(key);
    }

    /**
     * Removes any entry with the given key from the mapping of this Bundle.
     *
     * @param key a String key
     */
    @Override
    public void remove(String key) {
        super.remove(key);
    }

    /**
     * Inserts all mappings from the given Bundle into this Bundle.
     *
     * @param bundle a Bundle
     */
    public void putAll(Bundle bundle) {
        unparcel();
        bundle.unparcel();
        mMap.putAll(bundle.mMap);

        // fd state is now known if and only if both bundles already knew
        mHasFds |= bundle.mHasFds;
        mFdsKnown = mFdsKnown && bundle.mFdsKnown;
    }

    /**
     * Inserts all mappings from the given PersistableBundle into this Bundle.
     *
     * @param bundle a PersistableBundle
     */
    public void putAll(PersistableBundle bundle) {
        super.putAll(bundle);
    }

    /**
     * Returns a Set containing the Strings used as keys in this Bundle.
     *
     * @return a Set of String keys
     */
    @Override
    public Set<String> keySet() {
        return super.keySet();
    }

    /**
     * Reports whether the bundle contains any parcelled file descriptors.
     */
    public boolean hasFileDescriptors() {
        if (!mFdsKnown) {
            boolean fdFound = false;    // keep going until we find one or run out of data

            if (mParcelledData != null) {
                if (mParcelledData.hasFileDescriptors()) {
                    fdFound = true;
                }
            } else {
                // It's been unparcelled, so we need to walk the map
                for (int i=mMap.size()-1; i>=0; i--) {
                    Object obj = mMap.valueAt(i);
                    if (obj instanceof Parcelable) {
                        if ((((Parcelable)obj).describeContents()
                                & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
                            fdFound = true;
                            break;
                        }
                    } else if (obj instanceof Parcelable[]) {
                        Parcelable[] array = (Parcelable[]) obj;
                        for (int n = array.length - 1; n >= 0; n--) {
                            if ((array[n].describeContents()
                                    & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
                                fdFound = true;
                                break;
                            }
                        }
                    } else if (obj instanceof SparseArray) {
                        SparseArray<? extends Parcelable> array =
                                (SparseArray<? extends Parcelable>) obj;
                        for (int n = array.size() - 1; n >= 0; n--) {
                            if ((array.valueAt(n).describeContents()
                                    & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
                                fdFound = true;
                                break;
                            }
                        }
                    } else if (obj instanceof ArrayList) {
                        ArrayList array = (ArrayList) obj;
                        // an ArrayList here might contain either Strings or
                        // Parcelables; only look inside for Parcelables
                        if (!array.isEmpty() && (array.get(0) instanceof Parcelable)) {
                            for (int n = array.size() - 1; n >= 0; n--) {
                                Parcelable p = (Parcelable) array.get(n);
                                if (p != null && ((p.describeContents()
                                        & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0)) {
                                    fdFound = true;
                                    break;
                                }
                            }
                        }
                    }
                }
            }

            mHasFds = fdFound;
            mFdsKnown = true;
        }
        return mHasFds;
    }

    /**
     * Inserts a Boolean value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a Boolean, or null
     */
    @Override
    public void putBoolean(String key, boolean value) {
        super.putBoolean(key, value);
    }

    /**
     * Inserts a byte value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a byte
     */
    @Override
    public void putByte(String key, byte value) {
        super.putByte(key, value);
    }

    /**
     * Inserts a char value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a char, or null
     */
    @Override
    public void putChar(String key, char value) {
        super.putChar(key, value);
    }

    /**
     * Inserts a short value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a short
     */
    @Override
    public void putShort(String key, short value) {
        super.putShort(key, value);
    }

    /**
     * Inserts an int value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value an int, or null
     */
    @Override
    public void putInt(String key, int value) {
        super.putInt(key, value);
    }

    /**
     * Inserts a long value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a long
     */
    @Override
    public void putLong(String key, long value) {
        super.putLong(key, value);
    }

    /**
     * Inserts a float value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a float
     */
    @Override
    public void putFloat(String key, float value) {
        super.putFloat(key, value);
    }

    /**
     * Inserts a double value into the mapping of this Bundle, replacing
     * any existing value for the given key.
     *
     * @param key a String, or null
     * @param value a double
     */
    @Override
    public void putDouble(String key, double value) {
        super.putDouble(key, value);
    }

    /**
     * Inserts a String value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a String, or null
     */
    @Override
    public void putString(String key, String value) {
        super.putString(key, value);
    }

    /**
     * Inserts a CharSequence value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a CharSequence, or null
     */
    @Override
    public void putCharSequence(String key, CharSequence value) {
        super.putCharSequence(key, value);
    }

    /**
     * Inserts a Parcelable value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a Parcelable object, or null
     */
    public void putParcelable(String key, Parcelable value) {
        unparcel();
        mMap.put(key, value);
        mFdsKnown = false;
    }

    /**
     * Inserts an array of Parcelable values into the mapping of this Bundle,
     * replacing any existing value for the given key.  Either key or value may
     * be null.
     *
     * @param key a String, or null
     * @param value an array of Parcelable objects, or null
     */
    public void putParcelableArray(String key, Parcelable[] value) {
        unparcel();
        mMap.put(key, value);
        mFdsKnown = false;
    }

    /**
     * Inserts a List of Parcelable values into the mapping of this Bundle,
     * replacing any existing value for the given key.  Either key or value may
     * be null.
     *
     * @param key a String, or null
     * @param value an ArrayList of Parcelable objects, or null
     */
    public void putParcelableArrayList(String key,
            ArrayList<? extends Parcelable> value) {
        unparcel();
        mMap.put(key, value);
        mFdsKnown = false;
    }

    /** {@hide} */
    public void putParcelableList(String key, List<? extends Parcelable> value) {
        unparcel();
        mMap.put(key, value);
        mFdsKnown = false;
    }

    /**
     * Inserts a SparceArray of Parcelable values into the mapping of this
     * Bundle, replacing any existing value for the given key.  Either key
     * or value may be null.
     *
     * @param key a String, or null
     * @param value a SparseArray of Parcelable objects, or null
     */
    public void putSparseParcelableArray(String key,
            SparseArray<? extends Parcelable> value) {
        unparcel();
        mMap.put(key, value);
        mFdsKnown = false;
    }

    /**
     * Inserts an ArrayList<Integer> value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value an ArrayList<Integer> object, or null
     */
    @Override
    public void putIntegerArrayList(String key, ArrayList<Integer> value) {
        super.putIntegerArrayList(key, value);
    }

    /**
     * Inserts an ArrayList<String> value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value an ArrayList<String> object, or null
     */
    @Override
    public void putStringArrayList(String key, ArrayList<String> value) {
        super.putStringArrayList(key, value);
    }

    /**
     * Inserts an ArrayList<CharSequence> value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value an ArrayList<CharSequence> object, or null
     */
    @Override
    public void putCharSequenceArrayList(String key, ArrayList<CharSequence> value) {
        super.putCharSequenceArrayList(key, value);
    }

    /**
     * Inserts a Serializable value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a Serializable object, or null
     */
    @Override
    public void putSerializable(String key, Serializable value) {
        super.putSerializable(key, value);
    }

    /**
     * Inserts a boolean array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a boolean array object, or null
     */
    @Override
    public void putBooleanArray(String key, boolean[] value) {
        super.putBooleanArray(key, value);
    }

    /**
     * Inserts a byte array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a byte array object, or null
     */
    @Override
    public void putByteArray(String key, byte[] value) {
        super.putByteArray(key, value);
    }

    /**
     * Inserts a short array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a short array object, or null
     */
    @Override
    public void putShortArray(String key, short[] value) {
        super.putShortArray(key, value);
    }

    /**
     * Inserts a char array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a char array object, or null
     */
    @Override
    public void putCharArray(String key, char[] value) {
        super.putCharArray(key, value);
    }

    /**
     * Inserts an int array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value an int array object, or null
     */
    @Override
    public void putIntArray(String key, int[] value) {
        super.putIntArray(key, value);
    }

    /**
     * Inserts a long array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a long array object, or null
     */
    @Override
    public void putLongArray(String key, long[] value) {
        super.putLongArray(key, value);
    }

    /**
     * Inserts a float array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a float array object, or null
     */
    @Override
    public void putFloatArray(String key, float[] value) {
        super.putFloatArray(key, value);
    }

    /**
     * Inserts a double array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a double array object, or null
     */
    @Override
    public void putDoubleArray(String key, double[] value) {
        super.putDoubleArray(key, value);
    }

    /**
     * Inserts a String array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a String array object, or null
     */
    @Override
    public void putStringArray(String key, String[] value) {
        super.putStringArray(key, value);
    }

    /**
     * Inserts a CharSequence array value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a CharSequence array object, or null
     */
    @Override
    public void putCharSequenceArray(String key, CharSequence[] value) {
        super.putCharSequenceArray(key, value);
    }

    /**
     * Inserts a Bundle value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a Bundle object, or null
     */
    public void putBundle(String key, Bundle value) {
        unparcel();
        mMap.put(key, value);
    }

    /**
     * Inserts a PersistableBundle value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value a Bundle object, or null
     */
    public void putPersistableBundle(String key, PersistableBundle value) {
        super.putPersistableBundle(key, value);
    }

    /**
     * Inserts an {@link IBinder} value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * <p class="note">You should be very careful when using this function.  In many
     * places where Bundles are used (such as inside of Intent objects), the Bundle
     * can live longer inside of another process than the process that had originally
     * created it.  In that case, the IBinder you supply here will become invalid
     * when your process goes away, and no longer usable, even if a new process is
     * created for you later on.</p>
     *
     * @param key a String, or null
     * @param value an IBinder object, or null
     */
    public void putBinder(String key, IBinder value) {
        unparcel();
        mMap.put(key, value);
    }

    /**
     * Inserts an IBinder value into the mapping of this Bundle, replacing
     * any existing value for the given key.  Either key or value may be null.
     *
     * @param key a String, or null
     * @param value an IBinder object, or null
     *
     * @deprecated
     * @hide This is the old name of the function.
     */
    @Deprecated
    public void putIBinder(String key, IBinder value) {
        unparcel();
        mMap.put(key, value);
    }

    /**
     * Returns the value associated with the given key, or false if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a boolean value
     */
    @Override
    public boolean getBoolean(String key) {
        return super.getBoolean(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a boolean value
     */
    @Override
    public boolean getBoolean(String key, boolean defaultValue) {
        return super.getBoolean(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or (byte) 0 if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a byte value
     */
    @Override
    public byte getByte(String key) {
        return super.getByte(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a byte value
     */
    @Override
    public Byte getByte(String key, byte defaultValue) {
        return super.getByte(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or (char) 0 if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a char value
     */
    @Override
    public char getChar(String key) {
        return super.getChar(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a char value
     */
    @Override
    public char getChar(String key, char defaultValue) {
        return super.getChar(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or (short) 0 if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a short value
     */
    @Override
    public short getShort(String key) {
        return super.getShort(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a short value
     */
    @Override
    public short getShort(String key, short defaultValue) {
        return super.getShort(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or 0 if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return an int value
     */
    @Override
    public int getInt(String key) {
        return super.getInt(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return an int value
     */
    @Override
    public int getInt(String key, int defaultValue) {
        return super.getInt(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or 0L if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a long value
     */
    @Override
    public long getLong(String key) {
        return super.getLong(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a long value
     */
    @Override
    public long getLong(String key, long defaultValue) {
        return super.getLong(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or 0.0f if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a float value
     */
    @Override
    public float getFloat(String key) {
        return super.getFloat(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a float value
     */
    @Override
    public float getFloat(String key, float defaultValue) {
        return super.getFloat(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or 0.0 if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @return a double value
     */
    @Override
    public double getDouble(String key) {
        return super.getDouble(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String
     * @param defaultValue Value to return if key does not exist
     * @return a double value
     */
    @Override
    public double getDouble(String key, double defaultValue) {
        return super.getDouble(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a String value, or null
     */
    @Override
    public String getString(String key) {
        return super.getString(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String, or null
     * @param defaultValue Value to return if key does not exist
     * @return the String value associated with the given key, or defaultValue
     *     if no valid String object is currently mapped to that key.
     */
    @Override
    public String getString(String key, String defaultValue) {
        return super.getString(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a CharSequence value, or null
     */
    @Override
    public CharSequence getCharSequence(String key) {
        return super.getCharSequence(key);
    }

    /**
     * Returns the value associated with the given key, or defaultValue if
     * no mapping of the desired type exists for the given key.
     *
     * @param key a String, or null
     * @param defaultValue Value to return if key does not exist
     * @return the CharSequence value associated with the given key, or defaultValue
     *     if no valid CharSequence object is currently mapped to that key.
     */
    @Override
    public CharSequence getCharSequence(String key, CharSequence defaultValue) {
        return super.getCharSequence(key, defaultValue);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a Bundle value, or null
     */
    public Bundle getBundle(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (Bundle) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "Bundle", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a PersistableBundle value, or null
     */
    public PersistableBundle getPersistableBundle(String key) {
        return super.getPersistableBundle(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a Parcelable value, or null
     */
    public <T extends Parcelable> T getParcelable(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (T) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "Parcelable", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a Parcelable[] value, or null
     */
    public Parcelable[] getParcelableArray(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (Parcelable[]) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "Parcelable[]", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an ArrayList<T> value, or null
     */
    public <T extends Parcelable> ArrayList<T> getParcelableArrayList(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (ArrayList<T>) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "ArrayList", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     *
     * @return a SparseArray of T values, or null
     */
    public <T extends Parcelable> SparseArray<T> getSparseParcelableArray(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (SparseArray<T>) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "SparseArray", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a Serializable value, or null
     */
    @Override
    public Serializable getSerializable(String key) {
        return super.getSerializable(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an ArrayList<String> value, or null
     */
    @Override
    public ArrayList<Integer> getIntegerArrayList(String key) {
        return super.getIntegerArrayList(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an ArrayList<String> value, or null
     */
    @Override
    public ArrayList<String> getStringArrayList(String key) {
        return super.getStringArrayList(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an ArrayList<CharSequence> value, or null
     */
    @Override
    public ArrayList<CharSequence> getCharSequenceArrayList(String key) {
        return super.getCharSequenceArrayList(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a boolean[] value, or null
     */
    @Override
    public boolean[] getBooleanArray(String key) {
        return super.getBooleanArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a byte[] value, or null
     */
    @Override
    public byte[] getByteArray(String key) {
        return super.getByteArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a short[] value, or null
     */
    @Override
    public short[] getShortArray(String key) {
        return super.getShortArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a char[] value, or null
     */
    @Override
    public char[] getCharArray(String key) {
        return super.getCharArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an int[] value, or null
     */
    @Override
    public int[] getIntArray(String key) {
        return super.getIntArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a long[] value, or null
     */
    @Override
    public long[] getLongArray(String key) {
        return super.getLongArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a float[] value, or null
     */
    @Override
    public float[] getFloatArray(String key) {
        return super.getFloatArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a double[] value, or null
     */
    @Override
    public double[] getDoubleArray(String key) {
        return super.getDoubleArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a String[] value, or null
     */
    @Override
    public String[] getStringArray(String key) {
        return super.getStringArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return a CharSequence[] value, or null
     */
    @Override
    public CharSequence[] getCharSequenceArray(String key) {
        return super.getCharSequenceArray(key);
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an IBinder value, or null
     */
    public IBinder getBinder(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (IBinder) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "IBinder", e);
            return null;
        }
    }

    /**
     * Returns the value associated with the given key, or null if
     * no mapping of the desired type exists for the given key or a null
     * value is explicitly associated with the key.
     *
     * @param key a String, or null
     * @return an IBinder value, or null
     *
     * @deprecated
     * @hide This is the old name of the function.
     */
    @Deprecated
    public IBinder getIBinder(String key) {
        unparcel();
        Object o = mMap.get(key);
        if (o == null) {
            return null;
        }
        try {
            return (IBinder) o;
        } catch (ClassCastException e) {
            typeWarning(key, o, "IBinder", e);
            return null;
        }
    }

    public static final Parcelable.Creator<Bundle> CREATOR =
        new Parcelable.Creator<Bundle>() {
        @Override
        public Bundle createFromParcel(Parcel in) {
            return in.readBundle();
        }

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

    /**
     * Report the nature of this Parcelable's contents
     */
    @Override
    public int describeContents() {
        int mask = 0;
        if (hasFileDescriptors()) {
            mask |= Parcelable.CONTENTS_FILE_DESCRIPTOR;
        }
        return mask;
    }

    /**
     * Writes the Bundle contents to a Parcel, typically in order for
     * it to be passed through an IBinder connection.
     * @param parcel The parcel to copy this bundle to.
     */
    @Override
    public void writeToParcel(Parcel parcel, int flags) {
        final boolean oldAllowFds = parcel.pushAllowFds(mAllowFds);
        try {
            super.writeToParcelInner(parcel, flags);
        } finally {
            parcel.restoreAllowFds(oldAllowFds);
        }
    }

    /**
     * Reads the Parcel contents into this Bundle, typically in order for
     * it to be passed through an IBinder connection.
     * @param parcel The parcel to overwrite this bundle from.
     */
    public void readFromParcel(Parcel parcel) {
        super.readFromParcelInner(parcel);
        mHasFds = mParcelledData.hasFileDescriptors();
        mFdsKnown = true;
    }

    @Override
    public synchronized String toString() {
        if (mParcelledData != null) {
            if (mParcelledData == EMPTY_PARCEL) {
                return "Bundle[EMPTY_PARCEL]";
            } else {
                return "Bundle[mParcelledData.dataSize=" +
                        mParcelledData.dataSize() + "]";
            }
        }
        return "Bundle[" + mMap.toString() + "]";
    }

}