137 lines
3.8 KiB
Java
137 lines
3.8 KiB
Java
/*******************************************************************************
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* Copyright (c) 2015-2021 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.sql.SQLException;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.NavigableMap;
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import java.util.TreeMap;
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import com.minres.scviewer.database.EventKind;
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import com.minres.scviewer.database.HierNode;
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import com.minres.scviewer.database.IEvent;
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import com.minres.scviewer.database.IWaveform;
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import com.minres.scviewer.database.RelationType;
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import com.minres.scviewer.database.RelationTypeFactory;
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import com.minres.scviewer.database.WaveformType;
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import com.minres.scviewer.database.sqlite.db.IDatabase;
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import com.minres.scviewer.database.tx.ITx;
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abstract class AbstractTxStream extends HierNode implements IWaveform {
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protected IDatabase database;
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private long streamId;
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private Integer maxConcurrency;
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private TreeMap<Long, IEvent[]> events;
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private List<RelationType> usedRelationsList;
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protected AbstractTxStream(IDatabase database, String name, long streamId) {
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super(name);
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this.database=database;
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this.streamId=streamId;
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}
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@Override
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public int getRowCount() {
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if(maxConcurrency==null){
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StringBuilder sb = new StringBuilder();
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sb.append("SELECT MAX(concurrencyLevel) as concurrencyLevel FROM ScvTx where stream=");
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sb.append(streamId);
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try(
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java.sql.Connection connection = database.createConnection();
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java.sql.Statement statement = connection.createStatement();
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java.sql.ResultSet resultSet = statement.executeQuery(sb.toString());
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) {
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while (resultSet.next()) {
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if(maxConcurrency==null) maxConcurrency=0;
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Object value = resultSet.getObject("concurrencyLevel");
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if(value!=null)
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maxConcurrency=(Integer) value;
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}
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} catch (SQLException e) {
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if(maxConcurrency==null) maxConcurrency=0;
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}
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maxConcurrency+=1;
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}
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return maxConcurrency;
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}
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@Override
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public NavigableMap<Long, IEvent[]> getEvents(){
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if(events==null){
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events=new TreeMap<>();
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for(Entry<Integer, ITx> entry:getTransactions().entrySet()){
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putEvent(new TxEvent(EventKind.BEGIN, entry.getValue()));
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putEvent(new TxEvent(EventKind.END, entry.getValue()));
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}
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}
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return events;
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}
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private void putEvent(TxEvent ev){
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Long time = ev.getTime();
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if(events.containsKey(time)) {
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IEvent[] oldV = events.get(time);
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IEvent[] newV = new IEvent[oldV.length+1];
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System.arraycopy(oldV, 0, newV, 0, oldV.length);
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newV[oldV.length]=ev;
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events.put(time, newV);
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} else {
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events.put(time, new IEvent[] {ev});
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}
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}
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protected abstract Map<Integer, ITx> getTransactions();
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@Override
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public IEvent[] getEventsAtTime(Long time) {
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return getEvents().get(time);
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}
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public void setRelationTypeList(List<RelationType> usedRelationsList){
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this.usedRelationsList=usedRelationsList;
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}
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public RelationType getRelationType(String name) {
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RelationType relType=RelationTypeFactory.create(name);
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if(!usedRelationsList.contains(relType)) usedRelationsList.add(relType);
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return relType;
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}
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@Override
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public IEvent[] getEventsBeforeTime(Long time) {
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Entry<Long, IEvent[]> e = events.floorEntry(time);
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if(e==null)
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return new IEvent[]{};
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else
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return events.floorEntry(time).getValue();
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}
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@Override
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public WaveformType getType() {
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return WaveformType.TRANSACTION;
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}
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/**
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* Calculate concurrency.
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*/
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public void calculateConcurrency() {
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}
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}
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