/**
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.jpedal.org
* (C) Copyright 1997-2011, IDRsolutions and Contributors.
*
* This file is part of JPedal
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* NameLookup.java
* ---------------
*/
package org.jpedal.io;
import org.jpedal.objects.Javascript;
import org.jpedal.objects.raw.NamesObject;
import org.jpedal.objects.raw.PdfArrayIterator;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.utils.StringUtils;
import java.util.HashMap;
/**
* convert names to refs
*/
public class NameLookup extends HashMap {
private final PdfFileReader objectReader;
public NameLookup(PdfFileReader objectReader) {
this.objectReader=objectReader;
}
/**
* read any names
*/
public void readNames(PdfObject nameObject, Javascript javascript, boolean isKid){
ObjectDecoder objectDecoder=new ObjectDecoder(objectReader);
objectDecoder.checkResolved(nameObject);
/**
* loop to read required values into lookup
*/
final int[] nameLists=new int[]{PdfDictionary.Dests, PdfDictionary.JavaScript};
int count=nameLists.length;
if(isKid)
count=1;
PdfObject pdfObj;
PdfArrayIterator namesArray;
String name,value;
for(int ii=0;ii<count;ii++){
if(isKid)
pdfObj=nameObject;
else
pdfObj=nameObject.getDictionary(nameLists[ii]);
if(pdfObj==null)
continue;
//any kids
byte[][] kidList = pdfObj.getKeyArray(PdfDictionary.Kids);
if(kidList!=null){
int kidCount=kidList.length;
/** allow for empty value and put next pages in the queue */
if (kidCount> 0) {
for (byte[] aKidList : kidList) {
String nextValue = new String(aKidList);
PdfObject nextObject = new NamesObject(nextValue);
nextObject.ignoreRecursion(false);
objectReader.readObject(nextObject);
readNames(nextObject, javascript, true);
}
}
}
//get any names object
namesArray = pdfObj.getMixedArray(PdfDictionary.Names);
//read all the values
if (namesArray != null && namesArray.getTokenCount()>0) {
while (namesArray.hasMoreTokens()) {
name =namesArray.getNextValueAsString(true);
value =namesArray.getNextValueAsString(true);
//if Javascript, get full value and store, otherwise just get name
if(nameLists[ii]== PdfDictionary.JavaScript){
/**/
}else //just store
this.put(name, value);
}
}
}
}
}