com.google.zxing.oned.rss.expanded.decoders.AI013x0x1xDecoder Maven / Gradle / Ivy
/*
* Copyright (C) 2010 ZXing authors
*
* 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.
*/
/*
* These authors would like to acknowledge the Spanish Ministry of Industry,
* Tourism and Trade, for the support in the project TSI020301-2008-2
* "PIRAmIDE: Personalizable Interactions with Resources on AmI-enabled
* Mobile Dynamic Environments", led by Treelogic
* ( http://www.treelogic.com/ ):
*
* http://www.piramidepse.com/
*/
package com.google.zxing.oned.rss.expanded.decoders;
import com.google.zxing.NotFoundException;
import com.google.zxing.common.BitArray;
/**
* @author Pablo Orduña, University of Deusto ([email protected])
* @author Eduardo Castillejo, University of Deusto ([email protected])
*/
final class AI013x0x1xDecoder extends AI01weightDecoder {
private static final int HEADER_SIZE = 7 + 1;
private static final int WEIGHT_SIZE = 20;
private static final int DATE_SIZE = 16;
private final String dateCode;
private final String firstAIdigits;
AI013x0x1xDecoder(BitArray information, String firstAIdigits, String dateCode) {
super(information);
this.dateCode = dateCode;
this.firstAIdigits = firstAIdigits;
}
@Override
public String parseInformation() throws NotFoundException {
if (this.getInformation().getSize() != HEADER_SIZE + GTIN_SIZE + WEIGHT_SIZE + DATE_SIZE) {
throw NotFoundException.getNotFoundInstance();
}
StringBuilder buf = new StringBuilder();
encodeCompressedGtin(buf, HEADER_SIZE);
encodeCompressedWeight(buf, HEADER_SIZE + GTIN_SIZE, WEIGHT_SIZE);
encodeCompressedDate(buf, HEADER_SIZE + GTIN_SIZE + WEIGHT_SIZE);
return buf.toString();
}
private void encodeCompressedDate(StringBuilder buf, int currentPos) {
int numericDate = this.getGeneralDecoder().extractNumericValueFromBitArray(currentPos, DATE_SIZE);
if (numericDate == 38400) {
return;
}
buf.append('(');
buf.append(this.dateCode);
buf.append(')');
int day = numericDate % 32;
numericDate /= 32;
int month = numericDate % 12 + 1;
numericDate /= 12;
int year = numericDate;
if (year / 10 == 0) {
buf.append('0');
}
buf.append(year);
if (month / 10 == 0) {
buf.append('0');
}
buf.append(month);
if (day / 10 == 0) {
buf.append('0');
}
buf.append(day);
}
@Override
protected void addWeightCode(StringBuilder buf, int weight) {
buf.append('(');
buf.append(this.firstAIdigits);
buf.append(weight / 100000);
buf.append(')');
}
@Override
protected int checkWeight(int weight) {
return weight % 100000;
}
}