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