Android example source code file (SyncOperation.java)

This example Android source code file (SyncOperation.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

account, accounts, android, bundle, comparable, os, string, stringbuilder, syncoperation

The SyncOperation.java Android example source code

/*
 * Copyright (C) 2010 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.SystemClock;

/**
 * Value type that represents a sync operation.
 * @hide
 */
public class SyncOperation implements Comparable {
    public final Account account;
    public int syncSource;
    public String authority;
    public Bundle extras;
    public final String key;
    public long earliestRunTime;
    public boolean expedited;
    public SyncStorageEngine.PendingOperation pendingOperation;

    public SyncOperation(Account account, int source, String authority, Bundle extras,
            long delayInMs) {
        this.account = account;
        this.syncSource = source;
        this.authority = authority;
        this.extras = new Bundle(extras);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_UPLOAD);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_MANUAL);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_DO_NOT_RETRY);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_DISCARD_LOCAL_DELETIONS);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_EXPEDITED);
        removeFalseExtra(ContentResolver.SYNC_EXTRAS_OVERRIDE_TOO_MANY_DELETIONS);
        final long now = SystemClock.elapsedRealtime();
        if (delayInMs < 0) {
            this.expedited = true;
            this.earliestRunTime = now;
        } else {
            this.expedited = false;
            this.earliestRunTime = now + delayInMs;
        }
        this.key = toKey();
    }

    private void removeFalseExtra(String extraName) {
        if (!extras.getBoolean(extraName, false)) {
            extras.remove(extraName);
        }
    }

    SyncOperation(SyncOperation other) {
        this.account = other.account;
        this.syncSource = other.syncSource;
        this.authority = other.authority;
        this.extras = new Bundle(other.extras);
        this.expedited = other.expedited;
        this.earliestRunTime = SystemClock.elapsedRealtime();
        this.key = toKey();
    }

    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("authority: ").append(authority);
        sb.append(" account: ").append(account);
        sb.append(" extras: ");
        extrasToStringBuilder(extras, sb, false /* asKey */);
        sb.append(" syncSource: ").append(syncSource);
        sb.append(" when: ").append(earliestRunTime);
        sb.append(" expedited: ").append(expedited);
        return sb.toString();
    }

    private String toKey() {
        StringBuilder sb = new StringBuilder();
        sb.append("authority: ").append(authority);
        sb.append(" account: ").append(account);
        sb.append(" extras: ");
        extrasToStringBuilder(extras, sb, true /* asKey */);
        return sb.toString();
    }

    public static void extrasToStringBuilder(Bundle bundle, StringBuilder sb, boolean asKey) {
        sb.append("[");
        for (String key : bundle.keySet()) {
            // if we are writing this as a key don't consider whether this
            // is an initialization sync or not when computing the key since
            // we set this flag appropriately when dispatching the sync request.
            if (asKey && ContentResolver.SYNC_EXTRAS_INITIALIZE.equals(key)) {
                continue;
            }
            sb.append(key).append("=").append(bundle.get(key)).append(" ");
        }
        sb.append("]");
    }

    public int compareTo(Object o) {
        SyncOperation other = (SyncOperation)o;
        if (earliestRunTime == other.earliestRunTime) {
            return 0;
        }
        return (earliestRunTime < other.earliestRunTime) ? -1 : 1;
    }
}