Java tutorial
/** * This file is part of MythTV Android Frontend * * MythTV Android Frontend 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. * * MythTV Android Frontend 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 MythTV Android Frontend. If not, see <http://www.gnu.org/licenses/>. * * This software can be found at <https://github.com/MythTV-Clients/MythTV-Android-Frontend/> */ /** * */ package org.mythtv.service.dvr.v25; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.TreeMap; import java.util.UUID; import org.joda.time.DateTime; import org.mythtv.client.ui.preferences.LocationProfile; import org.mythtv.db.AbstractBaseHelper; import org.mythtv.db.channel.ChannelDaoHelper; import org.mythtv.db.content.LiveStreamConstants; import org.mythtv.db.dvr.ProgramConstants; import org.mythtv.db.dvr.RecordingConstants; import org.mythtv.db.dvr.RemoveStreamTask; import org.mythtv.db.dvr.programGroup.ProgramGroup; import org.mythtv.db.dvr.programGroup.ProgramGroupConstants; import org.mythtv.db.dvr.programGroup.ProgramGroupDaoHelper; import org.mythtv.service.channel.v25.ChannelHelperV25; import org.mythtv.service.util.NetworkHelper; import org.mythtv.services.api.ApiVersion; import org.mythtv.services.api.ETagInfo; import org.mythtv.services.api.MythServiceApiRuntimeException; import org.mythtv.services.api.connect.MythAccessFactory; import org.mythtv.services.api.v025.MythServicesTemplate; import org.mythtv.services.api.v025.beans.Program; import org.mythtv.services.api.v025.beans.ProgramList; import org.mythtv.services.utils.ArticleCleaner; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import android.content.ContentProviderOperation; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.content.OperationApplicationException; import android.database.Cursor; import android.os.RemoteException; import android.util.Log; /** * @author Daniel Frey * */ public class RecordedHelperV25 extends AbstractBaseHelper { private static final String TAG = RecordedHelperV25.class.getSimpleName(); private static final ApiVersion mApiVersion = ApiVersion.v025; private static MythServicesTemplate mMythServicesTemplate; private static RecordedHelperV25 singleton; private final ChannelDaoHelper mChannelDaoHelper = ChannelDaoHelper.getInstance(); /** * Returns the one and only RecordedHelperV25. init() must be called before * any * @return */ public static RecordedHelperV25 getInstance() { if (null == singleton) { synchronized (RecordedHelperV25.class) { if (null == singleton) { singleton = new RecordedHelperV25(); } } } return singleton; } /** * Constructor. No one but getInstance() can do this. */ private RecordedHelperV25() { } public boolean process(final Context context, final LocationProfile locationProfile) { Log.v(TAG, "process : enter"); if (!NetworkHelper.getInstance().isMasterBackendConnected(context, locationProfile)) { Log.w(TAG, "process : Master Backend '" + locationProfile.getHostname() + "' is unreachable"); return false; } mMythServicesTemplate = (MythServicesTemplate) MythAccessFactory.getServiceTemplateApiByVersion(mApiVersion, locationProfile.getUrl()); if (null == mMythServicesTemplate) { Log.w(TAG, "process : Master Backend '" + locationProfile.getHostname() + "' is unreachable"); return false; } boolean passed = true; try { downloadRecorded(context, locationProfile); } catch (Exception e) { if (e.toString().contains("Invalid UTF-8")) { Log.e(TAG, "process : INVALID UTF-8! Start mythbackend with valid LANG & LC_ALL (e.g. en_US.UTF-8"); } else { Log.e(TAG, "process : non UTF-8 exception ", e); } passed = false; } Log.v(TAG, "process : exit"); return passed; } public Integer countRecordedByTitle(final Context context, final LocationProfile locationProfile, String title) { Log.v(TAG, "countRecordedByTitle : enter"); Integer count = ProgramHelperV25.getInstance().countProgramsByTitle(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, title); // Log.v( TAG, "countRecordedByTitle : count=" + count ); Log.v(TAG, "countRecordedByTitle : exit"); return count; } public Program findRecorded(final Context context, final LocationProfile locationProfile, Integer channelId, DateTime startTime) { Log.v(TAG, "findRecorded : enter"); Program program = ProgramHelperV25.getInstance().findProgram(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, channelId, startTime); Log.v(TAG, "findRecorded : enter"); return program; } public boolean deleteRecorded(final Context context, final LocationProfile locationProfile, Integer channelId, DateTime startTime, Integer recordId) { Log.v(TAG, "deleteRecorded : enter"); boolean removed = false; ProgramHelperV25 programHelper = ProgramHelperV25.getInstance(); Program program = programHelper.findProgram(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, channelId, startTime); if (null != program) { Log.v(TAG, "deleteRecorded : program found!"); String title = program.getTitle(); removed = programHelper.deleteProgram(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, program.getChannel().getChanId(), program.getStartTime(), program.getRecording().getStartTs(), recordId); if (removed) { // Log.v( TAG, "deleteRecorded : program removed from backend" ); Integer programCount = countRecordedByTitle(context, locationProfile, title); if (null == programCount) { // Log.v( TAG, "deleteRecorded : programCount=" + programCount ); ProgramGroupDaoHelper programGroupDaoHelper = ProgramGroupDaoHelper.getInstance(); ProgramGroup programGroup = programGroupDaoHelper.findByTitle(context, locationProfile, title); if (null != programGroup) { // Log.v( TAG, "deleteRecorded : programGroup found" ); programGroupDaoHelper.delete(context, programGroup); } } } } Log.v(TAG, "deleteRecorded : exit"); return removed; } // internal helpers private void downloadRecorded(final Context context, final LocationProfile locationProfile) throws MythServiceApiRuntimeException, RemoteException, OperationApplicationException { Log.v(TAG, "downloadRecorded : enter"); ResponseEntity<ProgramList> responseEntity = mMythServicesTemplate.dvrOperations() .getRecordedList(Boolean.FALSE, null, null, ETagInfo.createEmptyETag()); if (responseEntity.getStatusCode().equals(HttpStatus.OK)) { Log.i(TAG, "download : GetRecordedList returned 200 OK"); ProgramList programList = responseEntity.getBody(); if (null != programList.getPrograms()) { load(context, locationProfile, programList.getPrograms()); } } Log.v(TAG, "downloadRecorded : exit"); } private int load(final Context context, final LocationProfile locationProfile, final Program[] programs) throws RemoteException, OperationApplicationException { Log.d(TAG, "load : enter"); if (null == context) throw new RuntimeException("RecordedHelperV25 is not initialized"); processProgramGroups(context, locationProfile, programs); String tag = UUID.randomUUID().toString(); int processed = -1; int count = 0; ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); boolean inError; List<Integer> channelsChecked = new ArrayList<Integer>(); for (Program program : programs) { if (null != program.getRecording() && "livetv".equalsIgnoreCase(program.getRecording().getRecGroup()) && !"deleted".equalsIgnoreCase(program.getRecording().getRecGroup())) { Log.w(TAG, "load : program has no recording or program is in livetv or deleted recording groups:" + program.getTitle() + ":" + program.getSubTitle() + ":" + program.getChannel().getChanId() + ":" + program.getStartTime() + ":" + program.getHostName() + " (" + (null == program.getRecording() ? "No Recording" : ("livetv".equalsIgnoreCase(program.getRecording().getRecGroup()) ? "LiveTv" : "Deleted")) + ")"); continue; } if (null == program.getStartTime() || null == program.getEndTime()) { Log.w(TAG, "load : null starttime and or endtime"); inError = true; } else { inError = false; } ProgramHelperV25.getInstance().processProgram(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, ops, program, tag); count++; if (null != program.getChannel()) { if (!channelsChecked.contains(program.getChannel().getChanId())) { if (null == mChannelDaoHelper.findByChannelId(context, locationProfile, Long.parseLong(String.valueOf(program.getChannel().getChanId())))) { ChannelHelperV25.getInstance().processChannel(context, locationProfile, ops, program.getChannel()); count++; } channelsChecked.add(program.getChannel().getChanId()); } } if (!inError && null != program.getRecording()) { if (program.getRecording().getRecordId() > 0) { RecordingHelperV25.getInstance().processRecording(context, locationProfile, ops, RecordingConstants.ContentDetails.RECORDED, program, tag); count++; } } if (count > BATCH_COUNT_LIMIT) { Log.i(TAG, "load : applying batch for '" + count + "' transactions"); processBatch(context, ops, processed, count); count = 0; } } if (!ops.isEmpty()) { Log.i(TAG, "load : applying final batch for '" + count + "' transactions"); processBatch(context, ops, processed, count); } ProgramHelperV25.getInstance().findAllPrograms(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED); Log.v(TAG, "load : remove deleted recording live streams"); String[] deletedProjection = new String[] { ProgramConstants.FIELD_CHANNEL_ID, ProgramConstants.FIELD_START_TIME, ProgramConstants.FIELD_TITLE, ProgramConstants.FIELD_SUB_TITLE, ProgramConstants.FIELD_LAST_MODIFIED_DATE }; String deletedSelection = "not " + ProgramConstants.TABLE_NAME_RECORDED + "." + ProgramConstants.FIELD_LAST_MODIFIED_TAG + " = ?"; String[] deletedSelectionArgs = new String[] { tag }; deletedSelection = appendLocationHostname(context, locationProfile, deletedSelection, ProgramConstants.TABLE_NAME_RECORDED); int deleteCount = 0; Cursor deletedCursor = context.getContentResolver().query(ProgramConstants.CONTENT_URI_RECORDED, deletedProjection, deletedSelection, deletedSelectionArgs, null); while (deletedCursor.moveToNext()) { long channelId = deletedCursor.getLong(deletedCursor.getColumnIndex(ProgramConstants.FIELD_CHANNEL_ID)); long startTime = deletedCursor.getLong(deletedCursor.getColumnIndex(ProgramConstants.FIELD_START_TIME)); // Delete any live stream details String liveStreamSelection = LiveStreamConstants.FIELD_CHAN_ID + " = ? AND " + LiveStreamConstants.FIELD_START_TIME + " = ?"; String[] liveStreamSelectionArgs = new String[] { String.valueOf(channelId), String.valueOf(startTime) }; liveStreamSelection = appendLocationHostname(context, locationProfile, liveStreamSelection, LiveStreamConstants.TABLE_NAME); Cursor liveStreamCursor = context.getContentResolver().query(LiveStreamConstants.CONTENT_URI, null, liveStreamSelection, liveStreamSelectionArgs, null); if (liveStreamCursor.moveToFirst()) { Log.v(TAG, "load : remove live stream"); int liveStreamId = liveStreamCursor.getInt(liveStreamCursor .getColumnIndex(LiveStreamConstants.TABLE_NAME + "." + LiveStreamConstants.FIELD_ID)); RemoveStreamTask removeStreamTask = new RemoveStreamTask(context, locationProfile); removeStreamTask.execute(liveStreamId); } liveStreamCursor.close(); deleteCount++; } deletedCursor.close(); Log.v(TAG, "load : queued deleted programs - " + deleteCount); ProgramHelperV25.getInstance().deletePrograms(context, locationProfile, ProgramConstants.CONTENT_URI_RECORDED, ProgramConstants.TABLE_NAME_RECORDED, tag); // RecordingHelperV25.getInstance().deleteRecordings( context, locationProfile, ops, RecordingConstants.ContentDetails.RECORDED, lastModified ); if (!ops.isEmpty()) { Log.i(TAG, "load : applying delete batch for transactions"); processBatch(context, ops, processed, count); } // Log.v( TAG, "load : exit" ); return processed; } private void processProgramGroups(final Context context, final LocationProfile locationProfile, Program[] programs) throws RemoteException, OperationApplicationException { Log.v(TAG, "processProgramGroups : enter"); if (null == context) throw new RuntimeException("RecordedHelperV25 is not initialized"); Map<String, ProgramGroup> programGroups = new TreeMap<String, ProgramGroup>(); for (Program program : programs) { if (null != program.getRecording()) { if (null != program.getRecording().getRecGroup() && !"livetv".equalsIgnoreCase(program.getRecording().getRecGroup()) && !"deleted".equalsIgnoreCase(program.getRecording().getRecGroup())) { String cleaned = ArticleCleaner.clean(program.getTitle()); if (!programGroups.containsKey(cleaned)) { ProgramGroup programGroup = new ProgramGroup(); programGroup.setTitle(program.getTitle()); programGroup.setCategory(program.getCategory()); programGroup.setInetref(program.getInetref()); programGroup.setSort(0); programGroups.put(cleaned, programGroup); } } } } int processed = -1; int count = 0; ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); Log.v(TAG, "processProgramGroups : adding 'All' program group in programGroups"); ProgramGroup all = new ProgramGroup(null, "All", "All", "All", "", 1); programGroups.put(all.getProgramGroup(), all); String[] programGroupProjection = new String[] { ProgramGroupConstants._ID }; String programGroupSelection = ProgramGroupConstants.FIELD_PROGRAM_GROUP + " = ?"; programGroupSelection = appendLocationHostname(context, locationProfile, programGroupSelection, null); for (String key : programGroups.keySet()) { Log.v(TAG, "processProgramGroups : processing programGroup '" + key + "'"); ProgramGroup programGroup = programGroups.get(key); ContentValues programValues = convertProgramGroupToContentValues(locationProfile, programGroup); Cursor programGroupCursor = context.getContentResolver().query(ProgramGroupConstants.CONTENT_URI, programGroupProjection, programGroupSelection, new String[] { key }, null); if (programGroupCursor.moveToFirst()) { Long id = programGroupCursor .getLong(programGroupCursor.getColumnIndexOrThrow(ProgramGroupConstants._ID)); ops.add(ContentProviderOperation .newUpdate(ContentUris.withAppendedId(ProgramGroupConstants.CONTENT_URI, id)) .withValues(programValues).withYieldAllowed(true).build()); } else { ops.add(ContentProviderOperation.newInsert(ProgramGroupConstants.CONTENT_URI) .withValues(programValues).withYieldAllowed(true).build()); } programGroupCursor.close(); count++; if (count > 100) { Log.v(TAG, "processProgramGroups : applying batch for '" + count + "' transactions"); processBatch(context, ops, processed, count); } } if (!ops.isEmpty()) { Log.v(TAG, "processProgramGroups : applying batch for '" + count + "' transactions"); processBatch(context, ops, processed, count); } Log.v(TAG, "processProgramGroups : remove deleted program groups"); ops = new ArrayList<ContentProviderOperation>(); DateTime lastModified = new DateTime(); lastModified = lastModified.minusHours(1); String deleteProgramGroupSelection = ProgramGroupConstants.FIELD_LAST_MODIFIED_DATE + " < ?"; String[] deleteProgramGroupArgs = new String[] { String.valueOf(lastModified.getMillis()) }; deleteProgramGroupSelection = appendLocationHostname(context, locationProfile, deleteProgramGroupSelection, ProgramGroupConstants.TABLE_NAME); ops.add(ContentProviderOperation.newDelete(ProgramGroupConstants.CONTENT_URI) .withSelection(deleteProgramGroupSelection, deleteProgramGroupArgs).withYieldAllowed(true).build()); if (!ops.isEmpty()) { Log.v(TAG, "processProgramGroups : applying batch for '" + count + "' transactions"); processBatch(context, ops, processed, count); } Log.v(TAG, "processProgramGroups : exit"); } private ContentValues convertProgramGroupToContentValues(final LocationProfile locationProfile, final ProgramGroup programGroup) { ContentValues values = new ContentValues(); values.put(ProgramGroupConstants.FIELD_PROGRAM_GROUP, null != programGroup.getTitle() ? ArticleCleaner.clean(programGroup.getTitle()) : ""); values.put(ProgramGroupConstants.FIELD_TITLE, null != programGroup.getTitle() ? programGroup.getTitle() : ""); values.put(ProgramGroupConstants.FIELD_CATEGORY, null != programGroup.getCategory() ? programGroup.getCategory() : ""); values.put(ProgramGroupConstants.FIELD_INETREF, null != programGroup.getInetref() ? programGroup.getInetref() : ""); values.put(ProgramGroupConstants.FIELD_SORT, programGroup.getSort()); values.put(ProgramGroupConstants.FIELD_MASTER_HOSTNAME, locationProfile.getHostname()); values.put(ProgramGroupConstants.FIELD_LAST_MODIFIED_DATE, new DateTime().getMillis()); return values; } }