SCViewer/com.minres.scviewer.databas.../src/com/minres/scviewer/database/text/TextDbLoader.groovy

243 lines
8.1 KiB
Groovy

/*******************************************************************************
* 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.nio.charset.CharsetDecoder;
import java.util.Collection;
import java.util.zip.GZIPInputStream
import org.codehaus.groovy.ast.stmt.CatchStatement
import org.mapdb.DB
import org.mapdb.DBMaker
import groovy.io.FileType
import com.minres.scviewer.database.AssociationType
import com.minres.scviewer.database.DataType
import com.minres.scviewer.database.ITxGenerator
import com.minres.scviewer.database.ITxStream
import com.minres.scviewer.database.IWaveform
import com.minres.scviewer.database.IWaveformDb
import com.minres.scviewer.database.IWaveformDbLoader
import com.minres.scviewer.database.RelationType
public class TextDbLoader implements IWaveformDbLoader{
private Long maxTime;
IWaveformDb db;
def streams = []
def relationTypes=[:]
DB mapDb
public TextDbLoader() {
}
@Override
public Long getMaxTime() {
return maxTime;
}
@Override
public Collection<IWaveform> getAllWaves() {
return streams;
}
public Map<Long, ITxGenerator> getGeneratorsById() {
TreeMap<Long, ITxGenerator> res = new TreeMap<Long, ITxGenerator>();
streams.each{TxStream stream -> stream.generators.each{res.put(it.id, id)} }
return res;
}
static final byte[] x = "scv_tr_stream".bytes
@Override
boolean load(IWaveformDb db, File file) throws Exception {
if(file.isDirectory() || !file.exists()) return false;
this.db=db
this.streams=[]
try {
def gzipped = isGzipped(file)
if(isTxfile(gzipped?new GZIPInputStream(new FileInputStream(file)):new FileInputStream(file))){
def mapDbFile = File.createTempFile("."+file.name, "tmp", file.parentFile)
mapDbFile.delete()
mapDbFile.deleteOnExit()
this.mapDb = DBMaker
.fileDB(mapDbFile)
.fileMmapEnableIfSupported()
.fileMmapPreclearDisable()
.cleanerHackEnable()
.allocateStartSize(64*1024*1024)
.allocateIncrement(64*1024*1024)
.make()
// NPE here --->
parseInput(gzipped?new GZIPInputStream(new FileInputStream(file)):new FileInputStream(file))
streams.each{ TxStream stream -> stream.getMaxConcurrency() }
return true
}
} catch (IndexOutOfBoundsException e) {
return false
} catch (IllegalArgumentException e) {
return false
} catch (NumberFormatException e) {
return false
} catch(EOFException e) {
return true;
} catch(Exception e) {
System.out.println("---->>> Exception "+e.toString()+" caught while loading database");
//System.out.println("---->>> Exception "+e.toString()+" caught while loading database. StackTrace following... ");
//e.printStackTrace()
}
return false;
}
private static boolean isTxfile(InputStream istream) {
byte[] buffer = new byte[x.size()]
def readCnt = istream.read(buffer, 0, x.size())
istream.close()
if(readCnt==x.size()){
for(int i=0; i<x.size(); i++)
if(buffer[i]!=x[i]) return false
}
return true
}
private static boolean isGzipped(File f) {
InputStream is = null;
try {
is = new FileInputStream(f);
byte [] signature = new byte[2];
int nread = is.read( signature ); //read the gzip signature
return nread == 2 && signature[ 0 ] == (byte) 0x1f && signature[ 1 ] == (byte) 0x8b;
} catch (IOException e) {
return false;
} finally {
if(is!=null) is.close()
}
}
private stringToScale(String scale){
switch(scale.trim()){
case "fs":return 1L
case "ps":return 1000L
case "ns":return 1000000L
case "us":return 1000000000L
case "ms":return 1000000000000L
case "s": return 1000000000000000L
}
return 1L
}
private def parseInput(InputStream inputStream){
def streamsById = [:]
def generatorsById = [:]
def transactionsById = [:]
TxGenerator generator
Tx transaction
boolean endTransaction=false
def matcher
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
long lineCnt=0;
reader.eachLine { line ->
def tokens = line.split(/\s+/) as ArrayList
switch(tokens[0]){
case "scv_tr_stream":
if ((matcher = line =~ /^scv_tr_stream\s+\(ID (\d+),\s+name\s+"([^"]+)",\s+kind\s+"([^"]+)"\)$/)) {
def id = Integer.parseInt(matcher[0][1])
def stream = new TxStream(this, id, matcher[0][2], matcher[0][3])
streams<<stream
streamsById[id]=stream
}
break;
case "scv_tr_generator":
if ((matcher = line =~ /^scv_tr_generator\s+\(ID\s+(\d+),\s+name\s+"([^"]+)",\s+scv_tr_stream\s+(\d+),$/)) {
def id = Integer.parseInt(matcher[0][1])
ITxStream stream=streamsById[Integer.parseInt(matcher[0][3])]
generator=new TxGenerator(id, stream, matcher[0][2])
stream.generators<<generator
generatorsById[id]=generator
}
break;
case "begin_attribute":
if ((matcher = line =~ /^begin_attribute \(ID (\d+), name "([^"]+)", type "([^"]+)"\)$/)) {
generator.begin_attrs << TxAttributeType.getAttrType(matcher[0][2], DataType.valueOf(matcher[0][3]), AssociationType.BEGIN)
}
break;
case "end_attribute":
if ((matcher = line =~ /^end_attribute \(ID (\d+), name "([^"]+)", type "([^"]+)"\)$/)) {
generator.end_attrs << TxAttributeType.getAttrType(matcher[0][2], DataType.valueOf(matcher[0][3]), AssociationType.END)
}
break;
case ")":
generator=null
break
case "tx_begin"://matcher = line =~ /^tx_begin\s+(\d+)\s+(\d+)\s+(\d+)\s+([munpf]?s)/
def id = Integer.parseInt(tokens[1])
TxGenerator gen=generatorsById[Integer.parseInt(tokens[2])]
transaction = new Tx(id, gen.stream, gen, Long.parseLong(tokens[3])*stringToScale(tokens[4]))
gen.transactions << transaction
transactionsById[id]= transaction
gen.begin_attrs_idx=0;
maxTime = maxTime>transaction.beginTime?maxTime:transaction.beginTime
endTransaction=false
break
case "tx_end"://matcher = line =~ /^tx_end\s+(\d+)\s+(\d+)\s+(\d+)\s+([munpf]?s)/
def id = Integer.parseInt(tokens[1])
transaction = transactionsById[id]
assert Integer.parseInt(tokens[2])==transaction.generator.id
transaction.endTime = Long.parseLong(tokens[3])*stringToScale(tokens[4])
transaction.generator.end_attrs_idx=0;
maxTime = maxTime>transaction.endTime?maxTime:transaction.endTime
endTransaction=true
break
case "tx_record_attribute"://matcher = line =~ /^tx_record_attribute\s+(\d+)\s+"([^"]+)"\s+(\S+)\s*=\s*(.+)$/
def id = Integer.parseInt(tokens[1])
def name = tokens[2][1..-2]
def type = tokens[3] as DataType
def remaining = tokens.size()>5?tokens[5..-1].join(' '):""
transactionsById[id].attributes<<new TxAttribute(name, type, AssociationType.RECORD, remaining)
break
case "a"://matcher = line =~ /^a\s+(.+)$/
if(endTransaction){
transaction.attributes << new TxAttribute(transaction.generator.end_attrs[transaction.generator.end_attrs_idx], tokens[1])
transaction.generator.end_attrs_idx++
} else {
transaction.attributes << new TxAttribute(transaction.generator.begin_attrs[transaction.generator.begin_attrs_idx], tokens[1])
transaction.generator.begin_attrs_idx++
}
break
case "tx_relation"://matcher = line =~ /^tx_relation\s+\"(\S+)\"\s+(\d+)\s+(\d+)$/
Tx tr2= transactionsById[Integer.parseInt(tokens[2])]
Tx tr1= transactionsById[Integer.parseInt(tokens[3])]
def relType=tokens[1][1..-2]
if(!relationTypes.containsKey(relType)) relationTypes[relType]=RelationType.create(relType)
def rel = new TxRelation(relationTypes[relType], tr1, tr2)
tr1.outgoingRelations<<rel
tr2.incomingRelations<<rel
break
default:
println "Don't know what to do with: '$line'"
}
lineCnt++
}
}
public Collection<RelationType> getAllRelationTypes(){
return relationTypes.values();
}
}