/******************************************************************************* * Copyright (c) 2015 MINRES Technologies GmbH and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * MINRES Technologies GmbH - initial API and implementation *******************************************************************************/ package com.minres.scviewer.database.sqlite; import java.beans.IntrospectionException; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.sql.SQLException; import java.util.ArrayList; import java.util.Collection; import java.util.List; import com.minres.scviewer.database.IWaveform; import com.minres.scviewer.database.IWaveformDb; import com.minres.scviewer.database.IWaveformDbLoader; import com.minres.scviewer.database.RelationType; import com.minres.scviewer.database.sqlite.db.IDatabase; import com.minres.scviewer.database.sqlite.db.SQLiteDatabase; import com.minres.scviewer.database.sqlite.db.SQLiteDatabaseSelectHandler; import com.minres.scviewer.database.sqlite.tables.ScvSimProps; import com.minres.scviewer.database.sqlite.tables.ScvStream; import com.minres.scviewer.database.sqlite.tables.ScvTxEvent; public class SQLiteDbLoader implements IWaveformDbLoader { protected IDatabase database; private List usedRelationsList = new ArrayList<>(); private IWaveformDb db; private ScvSimProps scvSimProps; public SQLiteDbLoader() { } @Override public Long getMaxTime() { SQLiteDatabaseSelectHandler handler = new SQLiteDatabaseSelectHandler(ScvTxEvent.class, database, "time = (SELECT MAX(time) FROM ScvTxEvent)"); try { List event = handler.selectObjects(); if(event.size()>0) return event.get(0).getTime()*scvSimProps.getTime_resolution(); } catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException | InvocationTargetException | SQLException | IntrospectionException e) { e.printStackTrace(); } return 0L; } @Override public Collection getAllWaves() { SQLiteDatabaseSelectHandler handler = new SQLiteDatabaseSelectHandler(ScvStream.class, database); List streams=new ArrayList(); try { for(ScvStream scvStream:handler.selectObjects()){ TxStream stream = new TxStream(database, db, scvStream); stream.setRelationTypeList(usedRelationsList); streams.add(stream); } } catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException | InvocationTargetException | SQLException | IntrospectionException e) { // e.printStackTrace(); } return streams; } private byte[] x = "SQLite format 3".getBytes(); @Override public boolean load(IWaveformDb db, File file) throws Exception { if(file.isDirectory() || !file.exists()) return false; this.db=db; try { FileInputStream fis = new FileInputStream(file); byte[] buffer = new byte[x.length]; int read = fis.read(buffer, 0, x.length); fis.close(); if (read == x.length) for (int i = 0; i < x.length; i++) if (buffer[i] != x[i]) return false; } catch(FileNotFoundException e) { return false; } catch(IOException e) { //if an I/O error occurs return false; } database=new SQLiteDatabase(file.getAbsolutePath()); database.setData("TIMERESOLUTION", 1L); SQLiteDatabaseSelectHandler handler = new SQLiteDatabaseSelectHandler(ScvSimProps.class, database); try { for(ScvSimProps simProps:handler.selectObjects()){ scvSimProps=simProps; database.setData("TIMERESOLUTION", scvSimProps.getTime_resolution()); } return true; } catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException | InvocationTargetException | SQLException | IntrospectionException e) { e.printStackTrace(); } return false; } @Override public Collection getAllRelationTypes(){ return usedRelationsList; } }