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

245 lines
8.2 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.IWaveform
import com.minres.scviewer.database.IWaveformDb
import com.minres.scviewer.database.IWaveformDbLoader
import com.minres.scviewer.database.RelationType
import com.minres.scviewer.database.tx.ITxGenerator
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, null /*"tmp"*/, null /*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.getWidth() }
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()
} catch(Error e) {
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])
TxStream stream=streamsById[Integer.parseInt(matcher[0][3])] as TxStream
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();
}
}