Android Open Source - iosched2011 Remote Worksheets Handler






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Back to project page iosched2011.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright 2011 Google Inc.//from   w ww . j a va  2s  . c om
 *
 * 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 com.google.android.apps.iosched.io;

import com.google.android.apps.iosched.provider.ScheduleContract;
import com.google.android.apps.iosched.provider.ScheduleContract.Sessions;
import com.google.android.apps.iosched.provider.ScheduleContract.Speakers;
import com.google.android.apps.iosched.provider.ScheduleContract.Vendors;
import com.google.android.apps.iosched.util.Lists;
import com.google.android.apps.iosched.util.Maps;
import com.google.android.apps.iosched.util.ParserUtils;
import com.google.android.apps.iosched.util.WorksheetEntry;

import org.apache.http.client.methods.HttpGet;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.net.Uri;
import android.util.Log;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

import static com.google.android.apps.iosched.util.ParserUtils.AtomTags.ENTRY;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.START_TAG;

public class RemoteWorksheetsHandler extends XmlHandler {
    private static final String TAG = "WorksheetsHandler";

    private RemoteExecutor mExecutor;

    public RemoteWorksheetsHandler(RemoteExecutor executor) {
        super(ScheduleContract.CONTENT_AUTHORITY);
        mExecutor = executor;
    }

    @Override
    public ArrayList<ContentProviderOperation> parse(XmlPullParser parser, ContentResolver resolver)
            throws XmlPullParserException, IOException {
        final HashMap<String, WorksheetEntry> sheets = Maps.newHashMap();

        // walk response, collecting all known spreadsheets
        int type;
        while ((type = parser.next()) != END_DOCUMENT) {
            if (type == START_TAG && ENTRY.equals(parser.getName())) {
                final WorksheetEntry entry = WorksheetEntry.fromParser(parser);
                Log.d(TAG, "found worksheet " + entry.toString());
                sheets.put(entry.getTitle(), entry);
            }
        }

        // consider updating each spreadsheet based on update timestamp
        considerUpdate(sheets, Worksheets.SESSIONS, Sessions.CONTENT_URI, resolver);
        considerUpdate(sheets, Worksheets.SPEAKERS, Speakers.CONTENT_URI, resolver);
        considerUpdate(sheets, Worksheets.VENDORS, Vendors.CONTENT_URI, resolver);

        return Lists.newArrayList();
    }

    private void considerUpdate(HashMap<String, WorksheetEntry> sheets, String sheetName,
            Uri targetDir, ContentResolver resolver) throws HandlerException {
        final WorksheetEntry entry = sheets.get(sheetName);
        if (entry == null) {
            // Silently ignore missing spreadsheets to allow sync to continue.
            Log.w(TAG, "Missing '" + sheetName + "' worksheet data");
            return;
//            throw new HandlerException("Missing '" + sheetName + "' worksheet data");
        }

        final long localUpdated = ParserUtils.queryDirUpdated(targetDir, resolver);
        final long serverUpdated = entry.getUpdated();
        Log.d(TAG, "considerUpdate() for " + entry.getTitle() + " found localUpdated="
                + localUpdated + ", server=" + serverUpdated);
        if (localUpdated >= serverUpdated) return;

        final HttpGet request = new HttpGet(entry.getListFeed());
        final XmlHandler handler = createRemoteHandler(entry);
        mExecutor.execute(request, handler);
    }

    private XmlHandler createRemoteHandler(WorksheetEntry entry) {
        final String title = entry.getTitle();
        if (Worksheets.SESSIONS.equals(title)) {
            return new RemoteSessionsHandler();
        } else if (Worksheets.SPEAKERS.equals(title)) {
            return new RemoteSpeakersHandler();
        } else if (Worksheets.VENDORS.equals(title)) {
            return new RemoteVendorsHandler();
        } else {
            throw new IllegalArgumentException("Unknown worksheet type");
        }
    }

    interface Worksheets {
        String SESSIONS = "sessions";
        String SPEAKERS = "speakers";
        String VENDORS = "sandbox";
    }
}




Java Source Code List

com.google.android.apps.iosched.io.LocalBlocksHandler.java
com.google.android.apps.iosched.io.LocalExecutor.java
com.google.android.apps.iosched.io.LocalRoomsHandler.java
com.google.android.apps.iosched.io.LocalSearchSuggestHandler.java
com.google.android.apps.iosched.io.LocalSessionsHandler.java
com.google.android.apps.iosched.io.LocalTracksHandler.java
com.google.android.apps.iosched.io.RemoteExecutor.java
com.google.android.apps.iosched.io.RemoteSessionsHandler.java
com.google.android.apps.iosched.io.RemoteSpeakersHandler.java
com.google.android.apps.iosched.io.RemoteVendorsHandler.java
com.google.android.apps.iosched.io.RemoteWorksheetsHandler.java
com.google.android.apps.iosched.io.SessionsHandlerTest.java
com.google.android.apps.iosched.io.StubHttpClient.java
com.google.android.apps.iosched.io.XmlHandler.java
com.google.android.apps.iosched.provider.ScheduleContract.java
com.google.android.apps.iosched.provider.ScheduleDatabase.java
com.google.android.apps.iosched.provider.ScheduleProvider.java
com.google.android.apps.iosched.service.SyncService.java
com.google.android.apps.iosched.ui.BaseActivity.java
com.google.android.apps.iosched.ui.BaseMultiPaneActivity.java
com.google.android.apps.iosched.ui.BaseSinglePaneActivity.java
com.google.android.apps.iosched.ui.BulletinActivity.java
com.google.android.apps.iosched.ui.BulletinFragment.java
com.google.android.apps.iosched.ui.DashboardFragment.java
com.google.android.apps.iosched.ui.HomeActivity.java
com.google.android.apps.iosched.ui.MapFragment.java
com.google.android.apps.iosched.ui.ScheduleFragment.java
com.google.android.apps.iosched.ui.SearchActivity.java
com.google.android.apps.iosched.ui.SessionDetailFragment.java
com.google.android.apps.iosched.ui.SessionsFragment.java
com.google.android.apps.iosched.ui.StarredActivity.java
com.google.android.apps.iosched.ui.TagStreamActivity.java
com.google.android.apps.iosched.ui.TagStreamFragment.java
com.google.android.apps.iosched.ui.TracksAdapter.java
com.google.android.apps.iosched.ui.TracksFragment.java
com.google.android.apps.iosched.ui.VendorDetailFragment.java
com.google.android.apps.iosched.ui.VendorsFragment.java
com.google.android.apps.iosched.ui.WhatsOnFragment.java
com.google.android.apps.iosched.ui.phone.MapActivity.java
com.google.android.apps.iosched.ui.phone.ScheduleActivity.java
com.google.android.apps.iosched.ui.phone.SessionDetailActivity.java
com.google.android.apps.iosched.ui.phone.SessionsActivity.java
com.google.android.apps.iosched.ui.phone.TracksActivity.java
com.google.android.apps.iosched.ui.phone.VendorDetailActivity.java
com.google.android.apps.iosched.ui.phone.VendorsActivity.java
com.google.android.apps.iosched.ui.tablet.MapMultiPaneActivity.java
com.google.android.apps.iosched.ui.tablet.NowPlayingMultiPaneActivity.java
com.google.android.apps.iosched.ui.tablet.ScheduleMultiPaneActivity.java
com.google.android.apps.iosched.ui.tablet.SessionsMultiPaneActivity.java
com.google.android.apps.iosched.ui.tablet.TracksDropdownFragment.java
com.google.android.apps.iosched.ui.tablet.VendorsMultiPaneActivity.java
com.google.android.apps.iosched.ui.widget.BezelImageView.java
com.google.android.apps.iosched.ui.widget.BlockView.java
com.google.android.apps.iosched.ui.widget.BlocksLayout.java
com.google.android.apps.iosched.ui.widget.DashboardLayout.java
com.google.android.apps.iosched.ui.widget.ObservableScrollView.java
com.google.android.apps.iosched.ui.widget.TimeRulerView.java
com.google.android.apps.iosched.ui.widget.Workspace.java
com.google.android.apps.iosched.util.ActivityHelperHoneycomb.java
com.google.android.apps.iosched.util.ActivityHelper.java
com.google.android.apps.iosched.util.AnalyticsUtils.java
com.google.android.apps.iosched.util.BitmapUtils.java
com.google.android.apps.iosched.util.CatchNotesHelper.java
com.google.android.apps.iosched.util.DetachableResultReceiver.java
com.google.android.apps.iosched.util.EulaHelper.java
com.google.android.apps.iosched.util.FractionalTouchDelegate.java
com.google.android.apps.iosched.util.Lists.java
com.google.android.apps.iosched.util.Maps.java
com.google.android.apps.iosched.util.MotionEventUtils.java
com.google.android.apps.iosched.util.NotifyingAsyncQueryHandler.java
com.google.android.apps.iosched.util.ParserUtils.java
com.google.android.apps.iosched.util.ReflectionUtils.java
com.google.android.apps.iosched.util.SelectionBuilder.java
com.google.android.apps.iosched.util.Sets.java
com.google.android.apps.iosched.util.SimpleMenuItem.java
com.google.android.apps.iosched.util.SimpleMenu.java
com.google.android.apps.iosched.util.SpreadsheetEntryTest.java
com.google.android.apps.iosched.util.SpreadsheetEntry.java
com.google.android.apps.iosched.util.UIUtils.java
com.google.android.apps.iosched.util.WorksheetEntry.java