SCViewer/plugins/com.minres.scviewer.databas.../src/com/minres/scviewer/database/text/AbstractTxStream.java

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2021-01-09 10:34:22 +01:00
/*******************************************************************************
* Copyright (c) 2012 IT Just working.
* 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:
* IT Just working - initial API and implementation
*******************************************************************************/
package com.minres.scviewer.database.text;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map.Entry;
import java.util.NavigableMap;
import java.util.TreeMap;
import com.minres.scviewer.database.EventKind;
import com.minres.scviewer.database.HierNode;
import com.minres.scviewer.database.IEvent;
import com.minres.scviewer.database.IWaveform;
import com.minres.scviewer.database.WaveformType;
import com.minres.scviewer.database.tx.ITxEvent;
import com.minres.scviewer.database.tx.ITxGenerator;
abstract class AbstractTxStream extends HierNode implements IWaveform {
private Long id;
protected TextDbLoader loader;
TreeMap<Long, IEvent[]> events = new TreeMap<>();
private int maxConcurrency = 0;
private int concurrency = 0;
boolean concurrencyCalculated = false;
public AbstractTxStream(TextDbLoader loader, Long id, String name) {
super(name);
this.loader=loader;
this.id=id;
}
void setConcurrency(int concurrency) {
this.concurrency = concurrency;
if(concurrency>maxConcurrency)
maxConcurrency = concurrency;
}
int getConcurrency() {
return this.concurrency;
}
@Override
public int getWidth() {
return maxConcurrency;
}
public void addEvent(ITxEvent evt) {
if(!events.containsKey(evt.getTime()))
events.put(evt.getTime(), new IEvent[] {evt});
else {
IEvent[] evts = events.get(evt.getTime());
IEvent[] newEvts = Arrays.copyOf(evts, evts.length+1);
newEvts[evts.length]=evt;
events.put(evt.getTime(), newEvts);
}
}
@Override
public NavigableMap<Long, IEvent[]> getEvents() {
if(!concurrencyCalculated) calculateConcurrency();
return events;
}
@Override
public IEvent[] getEventsAtTime(Long time) {
if(!concurrencyCalculated) calculateConcurrency();
return events.get(time);
}
@Override
public IEvent[] getEventsBeforeTime(Long time) {
if(!concurrencyCalculated)
calculateConcurrency();
Entry<Long, IEvent[]> e = events.floorEntry(time);
if(e==null)
return new IEvent[] {};
else
return events.floorEntry(time).getValue();
}
@Override
public WaveformType getType() {
return WaveformType.TRANSACTION;
}
@Override
public Long getId() {
return id;
}
synchronized void calculateConcurrency() {
if(concurrencyCalculated) return;
ArrayList<Long> rowendtime = new ArrayList<>();
events.entrySet().stream().forEach( entry -> {
IEvent[] values = entry.getValue();
Arrays.asList(values).stream().filter(e->e.getKind()==EventKind.BEGIN).forEach(evt -> {
Tx tx = (Tx) ((TxEvent)evt).getTransaction();
int rowIdx = 0;
for(; rowIdx<rowendtime.size() && rowendtime.get(rowIdx)>tx.getBeginTime(); rowIdx++);
if(rowendtime.size()<=rowIdx)
rowendtime.add(tx.getEndTime());
else
rowendtime.set(rowIdx, tx.getEndTime());
tx.setConcurrencyIndex(rowIdx);
});
});
concurrencyCalculated=true;
}
}