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/*
* Copyright (C) 2009 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 java.util.UUID;
/**
* This class is a Parcelable wrapper around {@link UUID} which is an
* immutable representation of a 128-bit universally unique
* identifier.
*/
public final class ParcelUuid implements Parcelable {
private final UUID mUuid;
/**
* Constructor creates a ParcelUuid instance from the
* given {@link UUID}.
*
* @param uuid UUID
*/
public ParcelUuid(UUID uuid) {
mUuid = uuid;
}
/**
* Creates a new ParcelUuid from a string representation of {@link UUID}.
*
* @param uuid
* the UUID string to parse.
* @return a ParcelUuid instance.
* @throws NullPointerException
* if {@code uuid} is {@code null}.
* @throws IllegalArgumentException
* if {@code uuid} is not formatted correctly.
*/
public static ParcelUuid fromString(String uuid) {
return new ParcelUuid(UUID.fromString(uuid));
}
/**
* Get the {@link UUID} represented by the ParcelUuid.
*
* @return UUID contained in the ParcelUuid.
*/
public UUID getUuid() {
return mUuid;
}
/**
* Returns a string representation of the ParcelUuid
* For example: 0000110B-0000-1000-8000-00805F9B34FB will be the return value.
*
* @return a String instance.
*/
@Override
public String toString() {
return mUuid.toString();
}
@Override
public int hashCode() {
return mUuid.hashCode();
}
/**
* Compares this ParcelUuid to another object for equality. If {@code object}
* is not {@code null}, is a ParcelUuid instance, and all bits are equal, then
* {@code true} is returned.
*
* @param object
* the {@code Object} to compare to.
* @return {@code true} if this ParcelUuid is equal to {@code object}
* or {@code false} if not.
*/
@Override
public boolean equals(Object object) {
if (object == null) {
return false;
}
if (this == object) {
return true;
}
if (!(object instanceof ParcelUuid)) {
return false;
}
ParcelUuid that = (ParcelUuid) object;
return (this.mUuid.equals(that.mUuid));
}
public static final Parcelable.Creator<ParcelUuid> CREATOR =
new Parcelable.Creator<ParcelUuid>() {
public ParcelUuid createFromParcel(Parcel source) {
long mostSigBits = source.readLong();
long leastSigBits = source.readLong();
UUID uuid = new UUID(mostSigBits, leastSigBits);
return new ParcelUuid(uuid);
}
public ParcelUuid[] newArray(int size) {
return new ParcelUuid[size];
}
};
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(mUuid.getMostSignificantBits());
dest.writeLong(mUuid.getLeastSignificantBits());
}
}
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