package com.refactored_networks.epc.epcnetwork;/** * Copyright 2005 Refactored Networks, LLC   Licensed 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.util.BitSet;import java.util.Properties;import java.util.StringTokenizer;public class SGTIN extends EPC {	protected String sManagerId;	protected String sProductId;	protected String sSerialNum;	protected String sFilter;	protected BitSet bits;	private ParseUtils utils = new ParseUtils();	/**	 * @param inEPC	 * @param iConfig	 * @throws EPCParseException	 */	public SGTIN(BitSet inEPC, Properties iConfig) throws EPCParseException {		super(inEPC, iConfig);		if(inEPC.length() == 64) {			parse64bit(ParseUtils.BitsToBytes(inEPC));		} else if(inEPC.length() == 96) {			parse96bit(ParseUtils.BitsToBytes(inEPC));		}	}		public SGTIN(byte[] inEPC,Properties config) throws EPCParseException {		super(inEPC,config);		if((inEPC[0] & 0xFF) == 48) {			parse96bit(inEPC);		} else if(((inEPC[0]>>6) & 3) == 2) {			parse64bit(inEPC);		} else {			throw new EPCParseException("Binary EPC's header does not correspond to an SGTIN");		}	}	/**	 * @param inEPC	 * @param flags	 * @param iConfig	 * @throws EPCParseException	 */	public SGTIN(String inEPC, int flags, Properties iConfig) throws EPCParseException {		super(inEPC, flags, iConfig);				if((flags & EPC.CANONICAL) != 0) {			parseCanonical(inEPC);		} else if((flags & EPC.NINETYSIXBIT) != 0) {			if((flags & EPC.BINARY) != 0) {				parse96bit(utils.BinaryStringToByteArray(inEPC));			} else if((flags & EPC.DECIMAL) !=0 ) {				parse96bit(utils.DecimalStringToByteArray(inEPC));			} else if((flags & EPC.HEX) != 0) {				parse96bit(utils.HexStringToByteArray(inEPC));			} else throw new EPCParseException("Unable to interpret flags in a meaningful way:" + flags);		} else if((flags & EPC.SIXTYFOURBIT) != 0) {			if((flags & EPC.BINARY) != 0) {				parse64bit(utils.BinaryStringToByteArray(inEPC));			} else if((flags & EPC.DECIMAL) !=0 ) {				parse64bit(utils.DecimalStringToByteArray(inEPC));			} else if((flags & EPC.HEX) != 0) {				parse64bit(utils.HexStringToByteArray(inEPC));			} else throw new EPCParseException("Unable to interpret flags in a meaningful way:" + flags);		}	}		private void parse64bit(byte[] inEPC) throws EPCParseException {		bits = new BitSet(((inEPC.length)*8)+1);		bits.set(0);		int j=0;        	for (int i=((inEPC.length)*8)-1;i>=0; i--) {			if(((inEPC[(inEPC.length-1) - (j/8)])&(1<<(j%8))) > 0) {				bits.set(i+1);			} else {				bits.set(i+1,false);			}			j++;        	}		long lHeader = ParseUtils.BitsToInt(bits.get(1,3),2);		long lFilter = ParseUtils.BitsToInt(bits.get(3,6),3);		long lIndex = ParseUtils.BitsToInt(bits.get(6,20),14);		long lItem = ParseUtils.BitsToInt(bits.get(20,40),20);		long lSerial = ParseUtils.BitsToInt(bits.get(40,65),25);						sSerialNum = Long.toString(lSerial);		sFilter = Long.toString(lFilter);		try {			CompanyPrefixIndexDB indexDB = new CompanyPrefixIndexDB(config);			sManagerId = indexDB.Lookup(Long.toString(lIndex));		} catch(NoSuchIndexException noindex) {			throw new EPCParseException("The index value was not found in " + config.getProperty("method"));		} catch(Exception e) {			throw new EPCParseException(e.getMessage());		}		sProductId = utils.ZeroPad(Long.toString(lItem),(13-sManagerId.length()));	}	private void parse96bit(byte[] inEPC) throws EPCParseException {		bits = new BitSet(((inEPC.length)*8)+1);		bits.set(0);		int j=0;        	for (int i=((inEPC.length)*8)-1;i>=0; i--) {			if(((inEPC[(inEPC.length-1) - (j/8)])&(1<<(j%8))) > 0) {				bits.set(i+1);			} else {				bits.set(i+1,false);			}			j++;        	}		long lHeader = ParseUtils.BitsToInt(bits.get(1,9),8);		if(lHeader != 48) {			throw new EPCParseException("Attempting to parse an EPC with the wrong header value (" + lHeader + ")");		}		long lFilter = ParseUtils.BitsToInt(bits.get(9,12),3);		sFilter = Long.toString(lFilter);		long lPartition = ParseUtils.BitsToInt(bits.get(12,15),3);		long lSerial = ParseUtils.BitsToInt(bits.get(59,97),38);		switch((int) lPartition) {			case 0:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,55),40)),12);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(55,59),4)),1);				break;			case 1:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,52),37)),11);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(52,59),7)),2);				break;			case 2:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,49),34)),10);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(49,59),10)),3);				break;			case 3:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,45),30)),9);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(45,59),14)),4);				break;			case 4:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,42),27)),8);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(42,59),17)),5);				break;			case 5:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,39),24)),7);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(39,59),20)),6);				break;			case 6:				sManagerId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(15,35),20)),6);				sProductId = utils.ZeroPad(Long.toString(ParseUtils.BitsToInt(bits.get(35,59),24)),7);				break;		       default: 				throw new EPCParseException("partition value invalid (" + lPartition + ")");		}		sSerialNum = Long.toString(lSerial);	}	public void parseCanonical(String inEPC) throws EPCParseException {		// The parser		StringTokenizer st = new StringTokenizer(inEPC, ":.");		// Is there anything to parse?		if(!st.hasMoreTokens()) {			throw new EPCParseException("Parse error. Not enough parse tokens.");		}		// If this isn't a URN, then throw an exception		String sURN = st.nextToken();		if(!sURN.equalsIgnoreCase("urn")) {			throw new EPCParseException("Not a URN. Scheme is " + sURN);		}		// Are there more tokens?		if(!st.hasMoreTokens()) {			throw new EPCParseException("Parse error. Not enough parse tokens.");		}		// Is this an EPC? If not, then throw an exception		String sNID = st.nextToken();		if(!sNID.equalsIgnoreCase("epc")) {			throw new EPCParseException("Not an EPC. NID is " + sNID);		}		// Anything left?		if(!st.hasMoreTokens()) {			throw new EPCParseException("Parse error. Not enough parse tokens.");		}		// Is this an 'id' type of an EPC? If not, throw an exception		// We'll add the other types later....		String sEPCType = st.nextToken();		if(!sEPCType.equalsIgnoreCase("id")) {			throw new EPCParseException("Not a pure identify form of an EPC. Type is " + sEPCType);		}		// Anything left?		if(!st.hasMoreTokens()) {			throw new EPCParseException("Parse error. Not enough parse tokens.");		}		// Finally! Is this a valid EPC type? If so, then save		// that and end since any further parsing is handled by		// the subclass.		String sIdType = st.nextToken();		if(!sIdType.equalsIgnoreCase("sgtin")) {			throw new EPCParseException("Not an SGTIN. Type is " + sIdType);		}		sManagerId = st.nextToken();		if(sManagerId == null) {			throw new EPCParseException("No manager id found");		}		sProductId = st.nextToken();		if(sProductId == null) {			throw new EPCParseException("No product id found");		}		sSerialNum= st.nextToken();		if(sSerialNum == null) {			throw new EPCParseException("No serial number found");		}	}	public String getSubNamespaceName() {		return("sgtin");	}	public String getCanonicalEncoding() {		return("urn:epc:id:sgtin:" + sManagerId + "." + sProductId + "." + sSerialNum);	}	public String getONSEncoding() {		return(sProductId + "." + sManagerId + ".sgtin.id.");	}	public BitSet getBinaryEncodingBitSet(int flags) throws EPCParseException {		if((flags & EPC.NINETYSIXBIT) != 0) {			return(build96bit());		} else if((flags & EPC.SIXTYFOURBIT) != 0 ) {			return(build64bit());		}		return(null);	}	private BitSet build64bit() throws EPCParseException {		BitSet mybits = new BitSet(65);		String sIndex;		mybits.set(0); // the leading bit placeholder		mybits.set(1); // the 64bit header for an SGTIN		mybits.set(2,false);		String bsFilter = utils.ZeroPad(Integer.toString(Integer.parseInt(sFilter),2),3);		for(int i=0;i<bsFilter.length();i++) 			if(bsFilter.charAt(i) == '1') {				mybits.set(i+3);			} else {				mybits.set(i+3,false);			}		try {			CompanyPrefixIndexDB indexDB = new CompanyPrefixIndexDB(config);			sIndex = indexDB.ReverseLookup(sManagerId);		} catch(NoSuchIndexException noindex) {			throw new EPCParseException("The index value was not found in " + config.getProperty("method"));		} catch(Exception e) {			throw new EPCParseException(e.getMessage());		}				String bsIndex = utils.ZeroPad(Integer.toString(Integer.parseInt(sIndex),2),14);		for(int i=0;i<bsIndex.length();i++) 			if(bsIndex.charAt(i) == '1') 				mybits.set(i+6);			else 				mybits.set(i+6,false);		String bsProductId = utils.ZeroPad(Integer.toString(Integer.parseInt(sProductId),2),20);		for(int i=0;i<bsProductId.length();i++) 			if(bsProductId.charAt(i) == '1') 				mybits.set(i+20);			else 				mybits.set(i+20,false);		String bsSerialNum = utils.ZeroPad(Long.toString(Long.parseLong(sSerialNum),2),25);		for(int i=0;i<25;i++) {						if(bsSerialNum.charAt(i) == '1') {				mybits.set(i+40);			} else { 				mybits.set(i+40,false);			}		}		return(mybits);	}	private BitSet build96bit() throws EPCParseException {		BitSet mybits = new BitSet(64);		mybits.set(0);		mybits.set(3);		mybits.set(4);		String bsFilter = utils.ZeroPad(Integer.toString(Integer.parseInt(sFilter),2),3);		for(int i=0;i<bsFilter.length();i++) 			if(bsFilter.charAt(i) == '1') {				mybits.set(i+9);			} else {				mybits.set(i+9,false);			}				String bsPartition;		String bsManagerId;		String bsProductId;		String bsSerialNum;				switch(sManagerId.length()) {		case 6:			System.out.println("sManagerId.length() = 6");			bsPartition = utils.ZeroPad(Integer.toString(6,2),3);			for(int i=0;i<bsPartition.length();i++) 				if(bsPartition.charAt(i) == '1') {					mybits.set(i+12);				} else {					mybits.set(i+12,false);				}			 bsManagerId = utils.ZeroPad(Long.toString(Long.parseLong(sManagerId),2),20);			for(int i=0;i<bsManagerId.length();i++) {				if(bsManagerId.charAt(i) == '1') 					mybits.set(15+i);				else 					mybits.set(15+i,false);			}			 bsProductId = utils.ZeroPad(Long.toString(Long.parseLong(sProductId),2),24);			for(int i=0;i<bsProductId.length();i++) {				if(bsProductId.charAt(i) == '1') 					mybits.set(35+i);				else 					mybits.set(35+i,false);			}			 bsSerialNum = utils.ZeroPad(Long.toString(Long.parseLong(sSerialNum),2),38);			for(int i=0;i<bsSerialNum.length();i++) {				if(bsSerialNum.charAt(i) == '1') 					mybits.set(59+i);				else					mybits.set(59+i,false);			}			break;		case 7:			System.out.println("sManagerId.length() = 7");			bsPartition = utils.ZeroPad(Integer.toString(5,2),3);			for(int i=0;i<bsPartition.length();i++) 				if(bsPartition.charAt(i) == '1') {					mybits.set(i+12);				} else {					mybits.set(i+12,false);				}			 bsManagerId = utils.ZeroPad(Long.toString(Long.parseLong(sManagerId),2),24);			for(int i=0;i<bsManagerId.length();i++) {				if(bsManagerId.charAt(i) == '1') 					mybits.set(15+i);				else 					mybits.set(15+i,false);			}			 bsProductId = utils.ZeroPad(Long.toString(Long.parseLong(sProductId),2),20);			for(int i=0;i<bsProductId.length();i++) {				if(bsProductId.charAt(i) == '1') 					mybits.set(39+i);				else 					mybits.set(39+i,false);			}			 bsSerialNum = utils.ZeroPad(Long.toString(Long.parseLong(sSerialNum),2),38);			for(int i=0;i<bsSerialNum.length();i++) {				if(bsSerialNum.charAt(i) == '1') 					mybits.set(59+i);				else					mybits.set(59+i,false);			}			break;		case 8:			System.out.println("sManagerId.length() = 8");			bsPartition = utils.ZeroPad(Integer.toString(4,2),3);			for(int i=0;i<bsPartition.length();i++) 				if(bsPartition.charAt(i) == '1') {					mybits.set(i+12);				} else {					mybits.set(i+12,false);				}			 bsManagerId = utils.ZeroPad(Long.toString(Long.parseLong(sManagerId),2),27);			for(int i=0;i<bsManagerId.length();i++) {				if(bsManagerId.charAt(i) == '1') 					mybits.set(15+i);				else 					mybits.set(15+i,false);			}			 bsProductId = utils.ZeroPad(Long.toString(Long.parseLong(sProductId),2),17);			for(int i=0;i<bsProductId.length();i++) {				if(bsProductId.charAt(i) == '1') 					mybits.set(42+i);				else 					mybits.set(42+i,false);			}			 bsSerialNum = utils.ZeroPad(Long.toString(Long.parseLong(sSerialNum),2),38);