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/*
* Copyright (C) 2013 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.content;
import android.accounts.Account;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Pair;
public class SyncRequest implements Parcelable {
private static final String TAG = "SyncRequest";
/** Account to pass to the sync adapter. Can be null. */
private final Account mAccountToSync;
/** Authority string that corresponds to a ContentProvider. */
private final String mAuthority;
/** {@link SyncService} identifier. */
private final ComponentName mComponentInfo;
/** Bundle containing user info as well as sync settings. */
private final Bundle mExtras;
/** Allow this sync request on metered networks. */
private final boolean mAllowMetered;
/**
* Anticipated upload size in bytes.
* TODO: Not yet used - we put this information into the bundle for simplicity.
*/
private final long mTxBytes;
/**
* Anticipated download size in bytes.
* TODO: Not yet used - we put this information into the bundle.
*/
private final long mRxBytes;
/**
* Amount of time before {@link mSyncRunTimeSecs} from which the sync may optionally be
* started.
*/
private final long mSyncFlexTimeSecs;
/**
* Specifies a point in the future at which the sync must have been scheduled to run.
*/
private final long mSyncRunTimeSecs;
/** Periodic versus one-off. */
private final boolean mIsPeriodic;
/** Service versus provider. */
private final boolean mIsAuthority;
/** Sync should be run in lieu of other syncs. */
private final boolean mIsExpedited;
/**
* {@hide}
* @return whether this sync is periodic or one-time. A Sync Request must be
* either one of these or an InvalidStateException will be thrown in
* Builder.build().
*/
public boolean isPeriodic() {
return mIsPeriodic;
}
public boolean isExpedited() {
return mIsExpedited;
}
/**
* {@hide}
* @return true if this sync uses an account/authority pair, or false if
* this is an anonymous sync bound to an @link AnonymousSyncService.
*/
public boolean hasAuthority() {
return mIsAuthority;
}
/**
* {@hide}
* Throws a runtime IllegalArgumentException if this function is called for an
* anonymous sync.
*
* @return (Account, Provider) for this SyncRequest.
*/
public Pair<Account, String> getProviderInfo() {
if (!hasAuthority()) {
throw new IllegalArgumentException("Cannot getProviderInfo() for an anonymous sync.");
}
return Pair.create(mAccountToSync, mAuthority);
}
/**
* {@hide}
* Throws a runtime IllegalArgumentException if this function is called for a
* SyncRequest that is bound to an account/provider.
*
* @return ComponentName for the service that this sync will bind to.
*/
public ComponentName getService() {
if (hasAuthority()) {
throw new IllegalArgumentException(
"Cannot getAnonymousService() for a sync that has specified a provider.");
}
return mComponentInfo;
}
/**
* {@hide}
* Retrieve bundle for this SyncRequest. Will not be null.
*/
public Bundle getBundle() {
return mExtras;
}
/**
* {@hide}
* @return the earliest point in time that this sync can be scheduled.
*/
public long getSyncFlexTime() {
return mSyncFlexTimeSecs;
}
/**
* {@hide}
* @return the last point in time at which this sync must scheduled.
*/
public long getSyncRunTime() {
return mSyncRunTimeSecs;
}
public static final Creator<SyncRequest> CREATOR = new Creator<SyncRequest>() {
@Override
public SyncRequest createFromParcel(Parcel in) {
return new SyncRequest(in);
}
@Override
public SyncRequest[] newArray(int size) {
return new SyncRequest[size];
}
};
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeBundle(mExtras);
parcel.writeLong(mSyncFlexTimeSecs);
parcel.writeLong(mSyncRunTimeSecs);
parcel.writeInt((mIsPeriodic ? 1 : 0));
parcel.writeInt((mAllowMetered ? 1 : 0));
parcel.writeLong(mTxBytes);
parcel.writeLong(mRxBytes);
parcel.writeInt((mIsAuthority ? 1 : 0));
parcel.writeInt((mIsExpedited? 1 : 0));
if (mIsAuthority) {
parcel.writeParcelable(mAccountToSync, flags);
parcel.writeString(mAuthority);
} else {
parcel.writeParcelable(mComponentInfo, flags);
}
}
private SyncRequest(Parcel in) {
mExtras = in.readBundle();
mSyncFlexTimeSecs = in.readLong();
mSyncRunTimeSecs = in.readLong();
mIsPeriodic = (in.readInt() != 0);
mAllowMetered = (in.readInt() != 0);
mTxBytes = in.readLong();
mRxBytes = in.readLong();
mIsAuthority = (in.readInt() != 0);
mIsExpedited = (in.readInt() != 0);
if (mIsAuthority) {
mComponentInfo = null;
mAccountToSync = in.readParcelable(null);
mAuthority = in.readString();
} else {
mComponentInfo = in.readParcelable(null);
mAccountToSync = null;
mAuthority = null;
}
}
/** {@hide} Protected ctor to instantiate anonymous SyncRequest. */
protected SyncRequest(SyncRequest.Builder b) {
mSyncFlexTimeSecs = b.mSyncFlexTimeSecs;
mSyncRunTimeSecs = b.mSyncRunTimeSecs;
mAccountToSync = b.mAccount;
mAuthority = b.mAuthority;
mComponentInfo = b.mComponentName;
mIsPeriodic = (b.mSyncType == Builder.SYNC_TYPE_PERIODIC);
mIsAuthority = (b.mSyncTarget == Builder.SYNC_TARGET_ADAPTER);
mIsExpedited = b.mExpedited;
mExtras = new Bundle(b.mCustomExtras);
mAllowMetered = b.mAllowMetered;
mTxBytes = b.mTxBytes;
mRxBytes = b.mRxBytes;
}
/**
* Builder class for a @link SyncRequest. As you build your SyncRequest this class will also
* perform validation.
*/
public static class Builder {
/** Unknown sync type. */
private static final int SYNC_TYPE_UNKNOWN = 0;
/** Specify that this is a periodic sync. */
private static final int SYNC_TYPE_PERIODIC = 1;
/** Specify that this is a one-time sync. */
private static final int SYNC_TYPE_ONCE = 2;
/** Unknown sync target. */
private static final int SYNC_TARGET_UNKNOWN = 0;
/** Specify that this is an anonymous sync. */
private static final int SYNC_TARGET_SERVICE = 1;
/** Specify that this is a sync with a provider. */
private static final int SYNC_TARGET_ADAPTER = 2;
/**
* Earliest point of displacement into the future at which this sync can
* occur.
*/
private long mSyncFlexTimeSecs;
/** Displacement into the future at which this sync must occur. */
private long mSyncRunTimeSecs;
/**
* Sync configuration information - custom user data explicitly provided by the developer.
* This data is handed over to the sync operation.
*/
private Bundle mCustomExtras;
/**
* Sync system configuration - used to store system sync configuration. Corresponds to
* ContentResolver.SYNC_EXTRAS_* flags.
* TODO: Use this instead of dumping into one bundle. Need to decide if these flags should
* discriminate between equivalent syncs.
*/
private Bundle mSyncConfigExtras;
/** Expected upload transfer in bytes. */
private long mTxBytes = -1L;
/** Expected download transfer in bytes. */
private long mRxBytes = -1L;
/** Whether or not this sync can occur on metered networks. Default false. */
private boolean mAllowMetered;
/** Priority of this sync relative to others from calling app [-2, 2]. Default 0. */
private int mPriority = 0;
/**
* Whether this builder is building a periodic sync, or a one-time sync.
*/
private int mSyncType = SYNC_TYPE_UNKNOWN;
/** Whether this will go to a sync adapter or to a sync service. */
private int mSyncTarget = SYNC_TARGET_UNKNOWN;
/** Whether this is a user-activated sync. */
private boolean mIsManual;
/**
* Whether to retry this one-time sync if the sync fails. Not valid for
* periodic syncs. See {@link ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY}.
*/
private boolean mNoRetry;
/**
* Whether to respect back-off for this one-time sync. Not valid for
* periodic syncs. See
* {@link android.content.ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF};
*/
private boolean mIgnoreBackoff;
/** Ignore sync system settings and perform sync anyway. */
private boolean mIgnoreSettings;
/** This sync will run in preference to other non-expedited syncs. */
private boolean mExpedited;
/**
* The @link android.content.AnonymousSyncService component that
* contains the sync logic if this is a provider-less sync, otherwise
* null.
*/
private ComponentName mComponentName;
/**
* The Account object that together with an Authority name define the SyncAdapter (if
* this sync is bound to a provider), otherwise null. This gets resolved
* against a {@link com.android.server.content.SyncStorageEngine}.
*/
private Account mAccount;
/**
* The Authority name that together with an Account define the SyncAdapter (if
* this sync is bound to a provider), otherwise null. This gets resolved
* against a {@link com.android.server.content.SyncStorageEngine}.
*/
private String mAuthority;
public Builder() {
}
/**
* Developer can define timing constraints for this one-shot request.
* These values are elapsed real-time.
*
* @param whenSeconds The time in seconds at which you want this
* sync to occur.
* @param beforeSeconds The amount of time in advance of whenSeconds that this
* sync may be permitted to occur. This is rounded up to a minimum of 5
* seconds, for any sync for which whenSeconds > 5.
*
* Example
* <pre>
* Perform an immediate sync.
* SyncRequest.Builder builder = (new SyncRequest.Builder()).syncOnce(0, 0);
* That is, a sync 0 seconds from now with 0 seconds of flex.
*
* Perform a sync in exactly 5 minutes.
* SyncRequest.Builder builder =
* new SyncRequest.Builder().syncOnce(5 * MIN_IN_SECS, 0);
*
* Perform a sync in 5 minutes, with one minute of leeway (between 4 and 5 minutes from
* now).
* SyncRequest.Builder builder =
* new SyncRequest.Builder().syncOnce(5 * MIN_IN_SECS, 1 * MIN_IN_SECS);
* </pre>
*/
public Builder syncOnce(long whenSeconds, long beforeSeconds) {
if (mSyncType != SYNC_TYPE_UNKNOWN) {
throw new IllegalArgumentException("Sync type has already been defined.");
}
mSyncType = SYNC_TYPE_ONCE;
setupInterval(whenSeconds, beforeSeconds);
return this;
}
/**
* Build a periodic sync. Either this or syncOnce() <b>must</b> be called for this builder.
* Syncs are identified by target {@link SyncService}/{@link android.provider} and by the
* contents of the extras bundle.
* You cannot reuse the same builder for one-time syncs after having specified a periodic
* sync (by calling this function). If you do, an {@link IllegalArgumentException} will be
* thrown.
*
* Example usage.
*
* <pre>
* Request a periodic sync every 5 hours with 20 minutes of flex.
* SyncRequest.Builder builder =
* (new SyncRequest.Builder()).syncPeriodic(5 * HOUR_IN_SECS, 20 * MIN_IN_SECS);
*
* Schedule a periodic sync every hour at any point in time during that hour.
* SyncRequest.Builder builder =
* (new SyncRequest.Builder()).syncPeriodic(1 * HOUR_IN_SECS, 1 * HOUR_IN_SECS);
* </pre>
*
* N.B.: Periodic syncs are not allowed to have any of
* {@link #SYNC_EXTRAS_DO_NOT_RETRY},
* {@link #SYNC_EXTRAS_IGNORE_BACKOFF},
* {@link #SYNC_EXTRAS_IGNORE_SETTINGS},
* {@link #SYNC_EXTRAS_INITIALIZE},
* {@link #SYNC_EXTRAS_FORCE},
* {@link #SYNC_EXTRAS_EXPEDITED},
* {@link #SYNC_EXTRAS_MANUAL}
* set to true. If any are supplied then an {@link IllegalArgumentException} will
* be thrown.
*
* @param pollFrequency the amount of time in seconds that you wish
* to elapse between periodic syncs.
* @param beforeSeconds the amount of flex time in seconds before
* {@code pollFrequency} that you permit for the sync to take
* place. Must be less than {@code pollFrequency}.
*/
public Builder syncPeriodic(long pollFrequency, long beforeSeconds) {
if (mSyncType != SYNC_TYPE_UNKNOWN) {
throw new IllegalArgumentException("Sync type has already been defined.");
}
mSyncType = SYNC_TYPE_PERIODIC;
setupInterval(pollFrequency, beforeSeconds);
return this;
}
/** {@hide} */
private void setupInterval(long at, long before) {
if (before > at) {
throw new IllegalArgumentException("Specified run time for the sync must be" +
" after the specified flex time.");
}
mSyncRunTimeSecs = at;
mSyncFlexTimeSecs = before;
}
/**
* Developer can provide insight into their payload size; optional. -1 specifies
* unknown, so that you are not restricted to defining both fields.
*
* @param rxBytes Bytes expected to be downloaded.
* @param txBytes Bytes expected to be uploaded.
*/
public Builder setTransferSize(long rxBytes, long txBytes) {
mRxBytes = rxBytes;
mTxBytes = txBytes;
return this;
}
/**
* @param allow false to allow this transfer on metered networks.
* Default true.
*/
public Builder setAllowMetered(boolean allow) {
mAllowMetered = true;
return this;
}
/**
* Give ourselves a concrete way of binding. Use an explicit
* authority+account SyncAdapter for this transfer, otherwise we bind
* anonymously to given componentname.
*
* @param authority
* @param account Account to sync. Can be null unless this is a periodic
* sync, for which verification by the ContentResolver will
* fail. If a sync is performed without an account, the
*/
public Builder setSyncAdapter(Account account, String authority) {
if (mSyncTarget != SYNC_TARGET_UNKNOWN) {
throw new IllegalArgumentException("Sync target has already been defined.");
}
mSyncTarget = SYNC_TARGET_ADAPTER;
mAccount = account;
mAuthority = authority;
mComponentName = null;
return this;
}
/**
* Set Service component name for anonymous sync. This is not validated
* until sync time so providing an incorrect component name here will
* not fail.
*
* @param cname ComponentName to identify your Anonymous service
*/
public Builder setSyncAdapter(ComponentName cname) {
if (mSyncTarget != SYNC_TARGET_UNKNOWN) {
throw new IllegalArgumentException("Sync target has already been defined.");
}
mSyncTarget = SYNC_TARGET_SERVICE;
mComponentName = cname;
mAccount = null;
mAuthority = null;
return this;
}
/**
* Developer-provided extras handed back when sync actually occurs. This bundle is copied
* into the SyncRequest returned by build().
*
* Example:
* <pre>
* String[] syncItems = {"dog", "cat", "frog", "child"};
* SyncRequest.Builder builder =
* new SyncRequest.Builder()
* .setSyncAdapter(dummyAccount, dummyProvider)
* .syncOnce(5 * MINUTES_IN_SECS);
*
* for (String syncData : syncItems) {
* Bundle extras = new Bundle();
* extras.setString("data", syncData);
* builder.setExtras(extras);
* ContentResolver.sync(builder.build()); // Each sync() request creates a unique sync.
* }
* </pre>
*
* Only values of the following types may be used in the extras bundle:
* <ul>
* <li>Integer</li>
* <li>Long</li>
* <li>Boolean</li>
* <li>Float</li>
* <li>Double</li>
* <li>String</li>
* <li>Account</li>
* <li>null</li>
* </ul>
* If any data is present in the bundle not of this type, build() will
* throw a runtime exception.
*
* @param bundle
*/
public Builder setExtras(Bundle bundle) {
mCustomExtras = bundle;
return this;
}
/**
* Convenience function for setting {@link ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY}. A
* one-off sync operation that fails will be retried at a later date unless this is
* set to false. Default is true. Not valid for periodic sync and will throw an
* IllegalArgumentException in Builder.build().
*
* @param retry false to not retry a failed sync. Default true.
*/
public Builder setNoRetry(boolean retry) {
mNoRetry = retry;
return this;
}
/**
* {@link ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS}. Not valid for
* periodic sync and will throw an IllegalArgumentException in
* Builder.build(). Default false.
*/
public Builder setIgnoreSettings(boolean ignoreSettings) {
mIgnoreSettings = ignoreSettings;
return this;
}
/**
* Convenience function for setting {@link ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF}.
*
* @param ignoreBackoff
*/
public Builder setIgnoreBackoff(boolean ignoreBackoff) {
mIgnoreBackoff = ignoreBackoff;
return this;
}
/**
* {@link ContentResolver.SYNC_EXTRAS_MANUAL}. Default false.
*/
public Builder setManual(boolean isManual) {
mIsManual = isManual;
return this;
}
/**
* {@link ContentResolver.SYNC_EXTRAS_} Default false.
*/
public Builder setExpedited(boolean expedited) {
mExpedited = expedited;
return this;
}
/**
* Priority of this request among all requests from the calling app.
* Range of [-2,2] similar to {@link android.app.Notification.priority}.
*/
public Builder setPriority(int priority) {
if (priority < -2 || priority > 2) {
throw new IllegalArgumentException("Priority must be within range [-2, 2]");
}
mPriority = priority;
return this;
}
/**
* Performs validation over the request and throws the runtime exception
* IllegalArgumentException if this validation fails. TODO: Add
* validation of SyncRequest here. 1) Cannot specify both periodic &
* one-off (fails above). 2) Cannot specify both service and
* account/provider (fails above).
*
* @return a SyncRequest with the information contained within this
* builder.
*/
public SyncRequest build() {
// Validate the extras bundle
try {
ContentResolver.validateSyncExtrasBundle(mCustomExtras);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(e.getMessage());
}
if (mCustomExtras == null) {
mCustomExtras = new Bundle();
}
// Combine the builder extra flags into the copy of the bundle.
if (mIgnoreBackoff) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF, true);
}
if (mAllowMetered) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_ALLOW_METERED, true);
}
if (mIgnoreSettings) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, true);
}
if (mNoRetry) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY, true);
}
if (mExpedited) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
}
if (mIsManual) {
mCustomExtras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
}
// Upload/download expectations.
mCustomExtras.putLong(ContentResolver.SYNC_EXTRAS_EXPECTED_UPLOAD, mTxBytes);
mCustomExtras.putLong(ContentResolver.SYNC_EXTRAS_EXPECTED_DOWNLOAD, mRxBytes);
// Priority.
mCustomExtras.putInt(ContentResolver.SYNC_EXTRAS_PRIORITY, mPriority);
if (mSyncType == SYNC_TYPE_PERIODIC) {
// If this is a periodic sync ensure than invalid extras were
// not set.
if (mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_INITIALIZE, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_FORCE, false)
|| mCustomExtras.getBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false)) {
throw new IllegalArgumentException("Illegal extras were set");
}
} else if (mSyncType == SYNC_TYPE_UNKNOWN) {
throw new IllegalArgumentException("Must call either syncOnce() or syncPeriodic()");
}
// Ensure that a target for the sync has been set.
if (mSyncTarget == SYNC_TARGET_UNKNOWN) {
throw new IllegalArgumentException("Must specify an adapter with one of"
+ "setSyncAdapter(ComponentName) or setSyncAdapter(Account, String");
}
return new SyncRequest(this);
}
}
}