package org.apache.lucene.benchmark.byTask.feeds;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.File;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.Properties;
import org.apache.lucene.document.DateTools;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.benchmark.byTask.utils.Config;
import org.apache.lucene.benchmark.byTask.utils.Format;
/**
* Create documents for the test.
* Maintains counters of chars etc. so that sub-classes just need to
* provide textual content, and the create-by-size is handled here.
*/
public abstract class BasicDocMaker implements DocMaker {
private int numDocsCreated = 0;
static class DocData {
String name;
Date date;
String title;
String body;
Properties props;
}
private static class LeftOver {
private DocData docdata;
private int cnt;
}
// leftovers are thread local, because it is unsafe to share residues between threads
private ThreadLocal leftovr = new ThreadLocal();
static final String BODY_FIELD = "body";
private long numBytes = 0;
private long numUniqueBytes = 0;
protected Config config;
protected Field.Store storeVal = Field.Store.NO;
protected Field.Index indexVal = Field.Index.TOKENIZED;
protected Field.TermVector termVecVal = Field.TermVector.NO;
private synchronized int incrNumDocsCreated() {
return numDocsCreated++;
}
/**
* Return the data of the next document.
* @return data of the next document.
* @exception if cannot create the next doc data
*/
protected abstract DocData getNextDocData() throws Exception;
/*
* (non-Javadoc)
* @see org.apache.lucene.benchmark.byTask.feeds.DocMaker#makeDocument()
*/
public Document makeDocument () throws Exception {
resetLeftovers();
DocData docData = getNextDocData();
Document doc = createDocument(docData,0,-1);
return doc;
}
// create a doc
// use only part of the body, modify it to keep the rest (or use all if size==0).
// reset the docdata properties so they are not added more than once.
private Document createDocument(DocData docData, int size, int cnt) {
int docid = incrNumDocsCreated();
Document doc = new Document();
doc.add(new Field("docid", "doc"+docid, storeVal, indexVal, termVecVal));
if (docData.name!=null) {
String name = (cnt<0 ? docData.name : docData.name+"_"+cnt);
doc.add(new Field("docname", name, storeVal, indexVal, termVecVal));
}
if (docData.date!=null) {
String dateStr = DateTools.dateToString(docData.date, DateTools.Resolution.SECOND);
doc.add(new Field("docdate", dateStr, storeVal, indexVal, termVecVal));
}
if (docData.title!=null) {
doc.add(new Field("doctitle", docData.title, storeVal, indexVal, termVecVal));
}
if (docData.body!=null && docData.body.length()>0) {
String bdy;
if (size<=0 || size>=docData.body.length()) {
bdy = docData.body; // use all
docData.body = ""; // nothing left
} else {
// attempt not to break words - if whitespace found within next 20 chars...
for (int n=size-1; n<size+20 && n<docData.body.length(); n++) {
if (Character.isWhitespace(docData.body.charAt(n))) {
size = n;
break;
}
}
bdy = docData.body.substring(0,size); // use part
docData.body = docData.body.substring(size); // some left
}
doc.add(new Field(BODY_FIELD, bdy, storeVal, indexVal, termVecVal));
}
if (docData.props!=null) {
for (Iterator it = docData.props.keySet().iterator(); it.hasNext(); ) {
String key = (String) it.next();
String val = (String) docData.props.get(key);
doc.add(new Field(key, val, storeVal, indexVal, termVecVal));
}
docData.props = null;
}
//System.out.println("============== Created doc "+numDocsCreated+" :\n"+doc+"\n==========");
return doc;
}
/*
* (non-Javadoc)
* @see org.apache.lucene.benchmark.byTask.feeds.DocMaker#makeDocument(int)
*/
public Document makeDocument(int size) throws Exception {
LeftOver lvr = (LeftOver) leftovr.get();
if (lvr==null || lvr.docdata==null || lvr.docdata.body==null || lvr.docdata.body.length()==0) {
resetLeftovers();
}
DocData dd = (lvr==null ? getNextDocData() : lvr.docdata);
int cnt = (lvr==null ? 0 : lvr.cnt);
while (dd.body==null || dd.body.length()<size) {
DocData dd2 = dd;
dd = getNextDocData();
cnt = 0;
dd.body = dd2.body + dd.body;
}
Document doc = createDocument(dd,size,cnt);
if (dd.body==null || dd.body.length()==0) {
resetLeftovers();
} else {
if (lvr == null) {
lvr = new LeftOver();
leftovr.set(lvr);
}
lvr.docdata = dd;
lvr.cnt = ++cnt;
}
return doc;
}
private void resetLeftovers() {
leftovr.set(null);
}
/* (non-Javadoc)
* @see DocMaker#setConfig(java.util.Properties)
*/
public void setConfig(Config config) {
this.config = config;
boolean stored = config.get("doc.stored",false);
boolean tokenized = config.get("doc.tokenized",true);
boolean termVec = config.get("doc.term.vector",false);
storeVal = (stored ? Field.Store.YES : Field.Store.NO);
indexVal = (tokenized ? Field.Index.TOKENIZED : Field.Index.UN_TOKENIZED);
termVecVal = (termVec ? Field.TermVector.YES : Field.TermVector.NO);
}
/*
* (non-Javadoc)
* @see DocMaker#resetIinputs()
*/
public synchronized void resetInputs() {
printDocStatistics();
numBytes = 0;
numDocsCreated = 0;
resetLeftovers();
}
/*
* (non-Javadoc)
* @see org.apache.lucene.benchmark.byTask.feeds.DocMaker#numUniqueBytes()
*/
public long numUniqueBytes() {
return numUniqueBytes;
}
/*
* (non-Javadoc)
* @see DocMaker#getCount()
*/
public synchronized int getCount() {
return numDocsCreated;
}
/*
* (non-Javadoc)
* @see DocMaker#getByteCount()
*/
public synchronized long getByteCount() {
return numBytes;
}
protected void addUniqueBytes (long n) {
numUniqueBytes += n;
}
protected synchronized void addBytes (long n) {
numBytes += n;
}
/*
* (non-Javadoc)
* @see org.apache.lucene.benchmark.byTask.feeds.DocMaker#printDocStatistics()
*/
private int lastPrintedNumUniqueTexts = 0;
private long lastPrintedNumUniqueBytes = 0;
private int printNum = 0;
public void printDocStatistics() {
boolean print = false;
String col = " ";
StringBuffer sb = new StringBuffer();
String newline = System.getProperty("line.separator");
sb.append("------------> ").append(Format.simpleName(getClass())).append(" statistics (").append(printNum).append("): ").append(newline);
int nut = numUniqueTexts();
if (nut > lastPrintedNumUniqueTexts) {
print = true;
sb.append("total count of unique texts: ").append(Format.format(0,nut,col)).append(newline);
lastPrintedNumUniqueTexts = nut;
}
long nub = numUniqueBytes();
if (nub > lastPrintedNumUniqueBytes) {
print = true;
sb.append("total bytes of unique texts: ").append(Format.format(0,nub,col)).append(newline);
lastPrintedNumUniqueBytes = nub;
}
if (getCount()>0) {
print = true;
sb.append("num docs added since last inputs reset: ").append(Format.format(0,getCount(),col)).append(newline);
sb.append("total bytes added since last inputs reset: ").append(Format.format(0,getByteCount(),col)).append(newline);
}
if (print) {
System.out.println(sb.append(newline).toString());
printNum++;
}
}
protected void collectFiles(File f, ArrayList inputFiles) {
if (!f.canRead()) {
return;
}
if (f.isDirectory()) {
File files[] = f.listFiles();
for (int i = 0; i < files.length; i++) {
collectFiles(files[i],inputFiles);
}
return;
}
inputFiles.add(f);
addUniqueBytes(f.length());
}
}
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