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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* Copyright (C) 2011 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.net;
import static com.android.internal.util.Preconditions.checkNotNull;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Objects;
/**
* Policy for networks matching a {@link NetworkTemplate}, including usage cycle
* and limits to be enforced.
*
* @hide
*/
public class NetworkPolicy implements Parcelable, Comparable {
public static final int CYCLE_NONE = -1;
public static final long WARNING_DISABLED = -1;
public static final long LIMIT_DISABLED = -1;
public static final long SNOOZE_NEVER = -1;
public NetworkTemplate template;
public int cycleDay;
public String cycleTimezone;
public long warningBytes;
public long limitBytes;
public long lastWarningSnooze;
public long lastLimitSnooze;
public boolean metered;
public boolean inferred;
private static final long DEFAULT_MTU = 1500;
@Deprecated
public NetworkPolicy(NetworkTemplate template, int cycleDay, String cycleTimezone,
long warningBytes, long limitBytes, boolean metered) {
this(template, cycleDay, cycleTimezone, warningBytes, limitBytes, SNOOZE_NEVER,
SNOOZE_NEVER, metered, false);
}
public NetworkPolicy(NetworkTemplate template, int cycleDay, String cycleTimezone,
long warningBytes, long limitBytes, long lastWarningSnooze, long lastLimitSnooze,
boolean metered, boolean inferred) {
this.template = checkNotNull(template, "missing NetworkTemplate");
this.cycleDay = cycleDay;
this.cycleTimezone = checkNotNull(cycleTimezone, "missing cycleTimezone");
this.warningBytes = warningBytes;
this.limitBytes = limitBytes;
this.lastWarningSnooze = lastWarningSnooze;
this.lastLimitSnooze = lastLimitSnooze;
this.metered = metered;
this.inferred = inferred;
}
public NetworkPolicy(Parcel in) {
template = in.readParcelable(null);
cycleDay = in.readInt();
cycleTimezone = in.readString();
warningBytes = in.readLong();
limitBytes = in.readLong();
lastWarningSnooze = in.readLong();
lastLimitSnooze = in.readLong();
metered = in.readInt() != 0;
inferred = in.readInt() != 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeParcelable(template, flags);
dest.writeInt(cycleDay);
dest.writeString(cycleTimezone);
dest.writeLong(warningBytes);
dest.writeLong(limitBytes);
dest.writeLong(lastWarningSnooze);
dest.writeLong(lastLimitSnooze);
dest.writeInt(metered ? 1 : 0);
dest.writeInt(inferred ? 1 : 0);
}
@Override
public int describeContents() {
return 0;
}
/**
* Test if given measurement is over {@link #warningBytes}.
*/
public boolean isOverWarning(long totalBytes) {
return warningBytes != WARNING_DISABLED && totalBytes >= warningBytes;
}
/**
* Test if given measurement is near enough to {@link #limitBytes} to be
* considered over-limit.
*/
public boolean isOverLimit(long totalBytes) {
// over-estimate, since kernel will trigger limit once first packet
// trips over limit.
totalBytes += 2 * DEFAULT_MTU;
return limitBytes != LIMIT_DISABLED && totalBytes >= limitBytes;
}
/**
* Clear any existing snooze values, setting to {@link #SNOOZE_NEVER}.
*/
public void clearSnooze() {
lastWarningSnooze = SNOOZE_NEVER;
lastLimitSnooze = SNOOZE_NEVER;
}
/**
* Test if this policy has a cycle defined, after which usage should reset.
*/
public boolean hasCycle() {
return cycleDay != CYCLE_NONE;
}
@Override
public int compareTo(NetworkPolicy another) {
if (another == null || another.limitBytes == LIMIT_DISABLED) {
// other value is missing or disabled; we win
return -1;
}
if (limitBytes == LIMIT_DISABLED || another.limitBytes < limitBytes) {
// we're disabled or other limit is smaller; they win
return 1;
}
return 0;
}
@Override
public int hashCode() {
return Objects.hash(template, cycleDay, cycleTimezone, warningBytes, limitBytes,
lastWarningSnooze, lastLimitSnooze, metered, inferred);
}
@Override
public boolean equals(Object obj) {
if (obj instanceof NetworkPolicy) {
final NetworkPolicy other = (NetworkPolicy) obj;
return cycleDay == other.cycleDay && warningBytes == other.warningBytes
&& limitBytes == other.limitBytes
&& lastWarningSnooze == other.lastWarningSnooze
&& lastLimitSnooze == other.lastLimitSnooze && metered == other.metered
&& inferred == other.inferred
&& Objects.equals(cycleTimezone, other.cycleTimezone)
&& Objects.equals(template, other.template);
}
return false;
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder("NetworkPolicy");
builder.append("[").append(template).append("]:");
builder.append(" cycleDay=").append(cycleDay);
builder.append(", cycleTimezone=").append(cycleTimezone);
builder.append(", warningBytes=").append(warningBytes);
builder.append(", limitBytes=").append(limitBytes);
builder.append(", lastWarningSnooze=").append(lastWarningSnooze);
builder.append(", lastLimitSnooze=").append(lastLimitSnooze);
builder.append(", metered=").append(metered);
builder.append(", inferred=").append(inferred);
return builder.toString();
}
public static final Creator CREATOR = new Creator() {
@Override
public NetworkPolicy createFromParcel(Parcel in) {
return new NetworkPolicy(in);
}
@Override
public NetworkPolicy[] newArray(int size) {
return new NetworkPolicy[size];
}
};
}