Android example source code file (SyncAdaptersCache.java)

This example Android source code file (SyncAdaptersCache.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, android, attributes_name, attributeset, content, io, ioexception, myserializer, service_interface, service_meta_data, string, syncadapterscache, syncadaptertype, tag, typedarray, util, utilities, utils, xmlpullparserexception, xmlserializerandparser

The SyncAdaptersCache.java Android example source code

/*
 * 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.content;

import android.content.pm.RegisteredServicesCache;
import android.content.pm.XmlSerializerAndParser;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlSerializer;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;

/**
 * A cache of services that export the {@link android.content.ISyncAdapter} interface.
 * @hide
 */
/* package private */ class SyncAdaptersCache extends RegisteredServicesCache<SyncAdapterType> {
    private static final String TAG = "Account";

    private static final String SERVICE_INTERFACE = "android.content.SyncAdapter";
    private static final String SERVICE_META_DATA = "android.content.SyncAdapter";
    private static final String ATTRIBUTES_NAME = "sync-adapter";
    private static final MySerializer sSerializer = new MySerializer();

    SyncAdaptersCache(Context context) {
        super(context, SERVICE_INTERFACE, SERVICE_META_DATA, ATTRIBUTES_NAME, sSerializer);
    }

    public SyncAdapterType parseServiceAttributes(Resources res,
            String packageName, AttributeSet attrs) {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.SyncAdapter);
        try {
            final String authority =
                    sa.getString(com.android.internal.R.styleable.SyncAdapter_contentAuthority);
            final String accountType =
                    sa.getString(com.android.internal.R.styleable.SyncAdapter_accountType);
            if (authority == null || accountType == null) {
                return null;
            }
            final boolean userVisible =
                    sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_userVisible, true);
            final boolean supportsUploading =
                    sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_supportsUploading,
                            true);
            return new SyncAdapterType(authority, accountType, userVisible, supportsUploading);
        } finally {
            sa.recycle();
        }
    }

    static class MySerializer implements XmlSerializerAndParser<SyncAdapterType> {
        public void writeAsXml(SyncAdapterType item, XmlSerializer out) throws IOException {
            out.attribute(null, "authority", item.authority);
            out.attribute(null, "accountType", item.accountType);
        }
    
        public SyncAdapterType createFromXml(XmlPullParser parser)
                throws IOException, XmlPullParserException {
            final String authority = parser.getAttributeValue(null, "authority");
            final String accountType = parser.getAttributeValue(null, "accountType");
            return SyncAdapterType.newKey(authority, accountType);
        }
    }
}