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/*------------------------------------------------------------------------------
* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
*
* Distributable under the terms of either the Apache License (Version 2.0) or
* the GNU Lesser General Public License, as specified in the COPYING file.
------------------------------------------------------------------------------*/
#include "CLucene/StdHeader.h"
#include "CLucene/util/Reader.h"
#include "Field.h"
#include "CLucene/util/Misc.h"
#include "CLucene/util/StringIntern.h"
#include "CLucene/util/StringBuffer.h"
CL_NS_USE(util)
CL_NS_DEF(document)
Field::Field(const TCHAR* Name, const TCHAR* String, bool store, bool index, bool token, const bool storeTermVector)
{
//Func - Constructor
//Pre - Name != NULL and contains the name of the field
// String != NULL and contains the value of the field
// store indicates if the field must be stored
// index indicates if the field must be indexed
// token indicates if the field must be tokenized
//Post - The instance has been created
CND_PRECONDITION(Name != NULL, "Name is NULL");
CND_PRECONDITION(String != NULL,"String is NULL");
CND_PRECONDITION(!(!index && storeTermVector),"cannot store a term vector for fields that are not indexed.");
_name = CLStringIntern::intern( Name CL_FILELINE);
_stringValue = stringDuplicate( String );
_readerValue = NULL;
_streamValue = NULL;
boost=1.0f;
omitNorms = false;
int cfg = 0;
if ( store )
cfg |= STORE_YES;
if ( index && token )
cfg |= INDEX_TOKENIZED;
else if ( index && !token )
cfg |= INDEX_UNTOKENIZED;
if ( storeTermVector )
_CLTHROWA(CL_ERR_IllegalArgument,"Stored term vector is deprecated with using this constructor");
setConfig(cfg);
}
Field::Field(const TCHAR* Name, Reader* reader, bool store, bool index, bool token, const bool storeTermVector)
{
//Func - Constructor
//Pre - Name != NULL and contains the name of the field
// reader != NULL and contains a Reader
// store indicates if the field must be stored
// index indicates if the field must be indexed
// token indicates if the field must be tokenized
//Post - The instance has been created
CND_PRECONDITION(Name != NULL, "Name is NULL");
CND_PRECONDITION(reader != NULL, "reader is NULL");
_name = CLStringIntern::intern( Name CL_FILELINE);
_stringValue = NULL;
_readerValue = reader;
_streamValue = NULL;
boost=1.0f;
omitNorms = false;
int cfg = 0;
if ( store )
cfg |= STORE_YES;
if ( index && token )
cfg |= INDEX_TOKENIZED;
else if ( index && !token )
cfg |= INDEX_UNTOKENIZED;
if ( storeTermVector )
_CLTHROWA(CL_ERR_IllegalArgument,"Stored term vector is deprecated with using this constructor");
setConfig(cfg);
}
Field::Field(const TCHAR* Name, Reader* reader, int config)
{
CND_PRECONDITION(Name != NULL, "Name is NULL");
CND_PRECONDITION(reader != NULL, "reader is NULL");
_name = CLStringIntern::intern( Name CL_FILELINE);
_stringValue = NULL;
_readerValue = reader;
_streamValue = NULL;
boost=1.0f;
omitNorms = false;
setConfig(config);
}
Field::Field(const TCHAR* Name, const TCHAR* Value, int config)
{
CND_PRECONDITION(Name != NULL, "Name is NULL");
CND_PRECONDITION(Value != NULL, "value is NULL");
_name = CLStringIntern::intern( Name CL_FILELINE);
_stringValue = stringDuplicate( Value );
_readerValue = NULL;
_streamValue = NULL;
boost=1.0f;
omitNorms = false;
setConfig(config);
}
Field::Field(const TCHAR* Name, jstreams::StreamBase<char>* Value, int config)
{
CND_PRECONDITION(Name != NULL, "Name is NULL");
CND_PRECONDITION(Value != NULL, "value is NULL");
_name = CLStringIntern::intern( Name CL_FILELINE);
_stringValue = NULL;
_readerValue = NULL;
_streamValue = Value;
boost=1.0f;
omitNorms = false;
setConfig(config);
}
Field::~Field(){
//Func - Destructor
//Pre - true
//Post - Instance has been destroyed
CLStringIntern::unintern(_name);
_CLDELETE_CARRAY(_stringValue);
_CLDELETE(_readerValue);
_CLVDELETE( _streamValue );
}
/*===============FIELDS=======================*/
const TCHAR* Field::name() { return _name; } ///<returns reference
TCHAR* Field::stringValue() { return _stringValue; } ///<returns reference
Reader* Field::readerValue() { return _readerValue; } ///<returns reference
jstreams::StreamBase<char>* Field::streamValue() { return _streamValue; } ///<returns reference
bool Field::isStored() { return (config & STORE_YES) != 0; }
bool Field::isIndexed() { return (config & INDEX_TOKENIZED)!=0 || (config & INDEX_UNTOKENIZED)!=0; }
bool Field::isTokenized() { return (config & INDEX_TOKENIZED) != 0; }
bool Field::isCompressed() { return (config & STORE_COMPRESS) != 0; }
bool Field::isBinary() { return _streamValue!=NULL; }
bool Field::isTermVectorStored() { return (config & TERMVECTOR_YES) != 0; }
bool Field::isStoreOffsetWithTermVector() { return (config & TERMVECTOR_YES) != 0 && (config & TERMVECTOR_WITH_OFFSETS) != 0; }
bool Field::isStorePositionWithTermVector() { return (config & TERMVECTOR_YES) != 0 && (config & TERMVECTOR_WITH_POSITIONS) != 0; }
bool Field::getOmitNorms() { return omitNorms; }
void Field::setOmitNorms(bool omitNorms) { this->omitNorms=omitNorms; }
void Field::setBoost(qreal boost) { this->boost = boost; }
qreal Field::getBoost() { return boost; }
void Field::setConfig(int x){
int newConfig=0;
//set storage settings
if ( (x & STORE_YES) || (x & STORE_COMPRESS) ){
newConfig |= STORE_YES;
if ( x & STORE_COMPRESS )
newConfig |= STORE_COMPRESS;
}else
newConfig |= STORE_NO;
if ( (x & INDEX_NO)==0 ){
bool index=false;
if ( x & INDEX_NONORMS ){
newConfig |= INDEX_NONORMS;
index = true;
}
if ( x & INDEX_TOKENIZED && x & INDEX_UNTOKENIZED )
_CLTHROWA(CL_ERR_IllegalArgument,"it doesn't make sense to have an untokenised and tokenised field");
if ( x & INDEX_TOKENIZED ){
newConfig |= INDEX_TOKENIZED;
index = true;
}
if ( x & INDEX_UNTOKENIZED ){
newConfig |= INDEX_UNTOKENIZED;
index = true;
}
if ( !index )
newConfig |= INDEX_NO;
}else
newConfig |= INDEX_NO;
if ( newConfig & INDEX_NO && newConfig & STORE_NO )
_CLTHROWA(CL_ERR_IllegalArgument,"it doesn't make sense to have a field that is neither indexed nor stored");
//set termvector settings
if ( (x & TERMVECTOR_NO) == 0 ){
bool termVector=false;
if ( x & TERMVECTOR_YES ){
termVector=true;
}
if ( x & TERMVECTOR_WITH_OFFSETS ){
newConfig |= TERMVECTOR_WITH_OFFSETS;
termVector=true;
}
if ( x & TERMVECTOR_WITH_POSITIONS ){
newConfig |= TERMVECTOR_WITH_POSITIONS;
termVector=true;
}
if ( termVector ){
if ( newConfig & INDEX_NO )
_CLTHROWA(CL_ERR_IllegalArgument,"cannot store a term vector for fields that are not indexed.");
newConfig |= TERMVECTOR_YES;
}else
newConfig |= TERMVECTOR_NO;
}else
newConfig |= TERMVECTOR_NO;
config = newConfig;
}
TCHAR* Field::toString() {
CL_NS(util)::StringBuffer result;
if (isStored()) {
result.append( _T("stored") );
}
if (isIndexed()) {
if (result.length() > 0)
result.append( _T(",") );
result.append( _T("indexed") );
}
if (isTokenized()) {
if (result.length() > 0)
result.append( _T(",") );
result.append( _T("tokenized") );
}
if (isTermVectorStored()) {
if (result.length() > 0)
result.append( _T(",") );
result.append( _T("termVector") );
}
if (isStoreOffsetWithTermVector()) {
if (result.length() > 0)
result.appendChar( ',' );
result.append( _T("termVectorOffsets") );
}
if (isStorePositionWithTermVector()) {
if (result.length() > 0)
result.appendChar( ',' );
result.append( _T("termVectorPosition") );
}
if (isBinary()) {
if (result.length() > 0)
result.appendChar( ',' );
result.append( _T("binary") );
}
if (getOmitNorms()) {
result.append( _T(",omitNorms") );
}
result.appendChar('<');
result.append(name());
result.appendChar(':');
if (_stringValue != NULL)
result.append(_stringValue);
else if ( _readerValue != NULL )
result.append( _T("Reader") );
else if ( _streamValue != NULL )
result.append( _T("Stream") );
else
result.append( _T("NULL") );
result.appendChar('>');
return result.toString();
}
Field* Field::Keyword(const TCHAR* Name, const TCHAR* Value) {
return _CLNEW Field(Name,Value,Field::STORE_YES | Field::INDEX_UNTOKENIZED);
}
Field* Field::UnIndexed(const TCHAR* Name, const TCHAR* Value) {
return _CLNEW Field(Name,Value,Field::STORE_YES | Field::INDEX_NO);
}
Field* Field::Text(const TCHAR* Name, const TCHAR* Value, const bool storeTermVector) {
if ( storeTermVector )
return _CLNEW Field(Name,Value,Field::STORE_YES | Field::INDEX_TOKENIZED | Field::TERMVECTOR_YES);
else
return _CLNEW Field(Name,Value,Field::STORE_YES | Field::INDEX_TOKENIZED);
}
Field* Field::UnStored(const TCHAR* Name, const TCHAR* Value, const bool storeTermVector) {
if ( storeTermVector )
return _CLNEW Field(Name,Value,Field::STORE_NO | Field::INDEX_TOKENIZED | Field::TERMVECTOR_YES);
else
return _CLNEW Field(Name,Value,Field::STORE_NO | Field::INDEX_TOKENIZED);
}
Field* Field::Text(const TCHAR* Name, Reader* Value, const bool storeTermVector) {
if ( storeTermVector )
return _CLNEW Field(Name,Value,Field::INDEX_TOKENIZED | Field::TERMVECTOR_YES);
else
return _CLNEW Field(Name,Value,Field::INDEX_TOKENIZED);
}
CL_NS_END
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