Java tutorial
/*------------------------------------------------------------------------------ ** Ident: Sogeti Smart Mobile Solutions ** Author: rene ** Copyright: (c) Apr 24, 2011 Sogeti Nederland B.V. All Rights Reserved. **------------------------------------------------------------------------------ ** Sogeti Nederland B.V. | No part of this file may be reproduced ** Distributed Software Engineering | or transmitted in any form or by any ** Lange Dreef 17 | means, electronic or mechanical, for the ** 4131 NJ Vianen | purpose, without the express written ** The Netherlands | permission of the copyright holder. *------------------------------------------------------------------------------ * * This file is part of OpenGPSTracker. * * OpenGPSTracker is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * OpenGPSTracker is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with OpenGPSTracker. If not, see <http://www.gnu.org/licenses/>. * */ package com.mutu.gpstracker.breadcrumbs; import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.impl.client.DefaultHttpClient; import com.mutu.gpstracker.actions.tasks.GpxParser; import com.mutu.gpstracker.actions.tasks.XmlCreator; import com.mutu.gpstracker.actions.utils.ProgressListener; import com.mutu.gpstracker.adapter.BreadcrumbsAdapter; import com.mutu.gpstracker.db.GPStracking.MetaData; import com.mutu.gpstracker.db.GPStracking.Tracks; import com.mutu.gpstracker.util.Pair; import com.mutu.gpstracker.R; import oauth.signpost.OAuthConsumer; import oauth.signpost.exception.OAuthCommunicationException; import oauth.signpost.exception.OAuthExpectationFailedException; import oauth.signpost.exception.OAuthMessageSignerException; //import org.apache.ogt.http.Header; //import org.apache.ogt.http.HttpEntity; //import org.apache.ogt.http.HttpResponse; //import org.apache.ogt.http.client.methods.HttpGet; //import org.apache.ogt.http.client.methods.HttpUriRequest; //import org.apache.ogt.http.impl.client.DefaultHttpClient; //import org.apache.ogt.http.util.EntityUtils; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.net.Uri; import android.util.Log; /** * An asynchronous task that communicates with Twitter to retrieve a request * token. (OAuthGetRequestToken) After receiving the request token from Twitter, * pop a browser to the user to authorize the Request Token. * (OAuthAuthorizeToken) */ public class DownloadBreadcrumbsTrackTask extends GpxParser { final String TAG = "OGT.GetBreadcrumbsTracksTask"; private BreadcrumbsService mAdapter; private OAuthConsumer mConsumer; private DefaultHttpClient mHttpclient; private Pair<Integer, Integer> mTrack; /** * * Constructor: create a new DownloadBreadcrumbsTrackTask. * @param context * @param progressListener * @param adapter * @param httpclient * @param consumer * @param track */ public DownloadBreadcrumbsTrackTask(Context context, ProgressListener progressListener, BreadcrumbsService adapter, DefaultHttpClient httpclient, OAuthConsumer consumer, Pair<Integer, Integer> track) { super(context, progressListener); mAdapter = adapter; mHttpclient = httpclient; mConsumer = consumer; mTrack = track; } /** * Retrieve the OAuth Request Token and present a browser to the user to * authorize the token. */ @Override protected Uri doInBackground(Uri... params) { determineProgressGoal(null); Uri trackUri = null; String trackName = mAdapter.getBreadcrumbsTracks().getValueForItem(mTrack, BreadcrumbsTracks.NAME); HttpEntity responseEntity = null; try { HttpUriRequest request = new HttpGet( "http://api.gobreadcrumbs.com/v1/tracks/" + mTrack.second + "/placemarks.gpx"); if (isCancelled()) { throw new IOException("Fail to execute request due to canceling"); } mConsumer.sign(request); if (BreadcrumbsAdapter.DEBUG) { Log.d(TAG, "Execute request: " + request.getURI()); for (Header header : request.getAllHeaders()) { Log.d(TAG, " with header: " + header.toString()); } } HttpResponse response = mHttpclient.execute(request); responseEntity = response.getEntity(); InputStream is = responseEntity.getContent(); InputStream stream = new BufferedInputStream(is, 8192); if (BreadcrumbsAdapter.DEBUG) { stream = XmlCreator.convertStreamToLoggedStream(TAG, stream); } trackUri = importTrack(stream, trackName); } catch (OAuthMessageSignerException e) { handleError(e, mContext.getString(R.string.error_importgpx_xml)); } catch (OAuthExpectationFailedException e) { handleError(e, mContext.getString(R.string.error_importgpx_xml)); } catch (OAuthCommunicationException e) { handleError(e, mContext.getString(R.string.error_importgpx_xml)); } catch (IOException e) { handleError(e, mContext.getString(R.string.error_importgpx_xml)); } finally { if (responseEntity != null) { try { //EntityUtils.consume(responseEntity); responseEntity.consumeContent(); } catch (IOException e) { Log.e(TAG, "Failed to close the content stream", e); } } } return trackUri; } @Override protected void onPostExecute(Uri result) { super.onPostExecute(result); long ogtTrackId = Long.parseLong(result.getLastPathSegment()); Uri metadataUri = Uri.withAppendedPath(ContentUris.withAppendedId(Tracks.CONTENT_URI, ogtTrackId), "metadata"); BreadcrumbsTracks tracks = mAdapter.getBreadcrumbsTracks(); Integer bcTrackId = mTrack.second; Integer bcBundleId = tracks.getBundleIdForTrackId(bcTrackId); //TODO Integer bcActivityId = tracks.getActivityIdForBundleId(bcBundleId); String bcDifficulty = tracks.getValueForItem(mTrack, BreadcrumbsTracks.DIFFICULTY); String bcRating = tracks.getValueForItem(mTrack, BreadcrumbsTracks.RATING); String bcPublic = tracks.getValueForItem(mTrack, BreadcrumbsTracks.ISPUBLIC); String bcDescription = tracks.getValueForItem(mTrack, BreadcrumbsTracks.DESCRIPTION); ArrayList<ContentValues> metaValues = new ArrayList<ContentValues>(); if (bcTrackId != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.TRACK_ID, Long.toString(bcTrackId))); } if (bcDescription != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.DESCRIPTION, bcDescription)); } if (bcDifficulty != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.DIFFICULTY, bcDifficulty)); } if (bcRating != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.RATING, bcRating)); } if (bcPublic != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.ISPUBLIC, bcPublic)); } if (bcBundleId != null) { metaValues.add(buildContentValues(BreadcrumbsTracks.BUNDLE_ID, Integer.toString(bcBundleId))); } // if (bcActivityId != null) // { // metaValues.add(buildContentValues(BreadcrumbsTracks.ACTIVITY_ID, Integer.toString(bcActivityId))); // } ContentResolver resolver = mContext.getContentResolver(); resolver.bulkInsert(metadataUri, metaValues.toArray(new ContentValues[1])); tracks.addSyncedTrack(ogtTrackId, mTrack.second); } private ContentValues buildContentValues(String key, String value) { ContentValues contentValues = new ContentValues(); contentValues.put(MetaData.KEY, key); contentValues.put(MetaData.VALUE, value); return contentValues; } }