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LogFormat.java
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LogFormat.java
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/*
* Copyright 2010 sasc
*
* 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.
*/
package sasc.emv;
import sasc.iso7816.TagAndLength;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.List;
import sasc.iso7816.TLVUtil;
import sasc.util.Log;
import sasc.util.Util;
/**
* List (in tag and length format) of data objects representing the logged data elements that are passed to the terminal when a transaction log record is read
*
* @author sasc
*/
public class LogFormat {
private List<TagAndLength> formatList;
private int recordLength = 0;
public LogFormat(byte[] formatBytes){
this.formatList = TLVUtil.parseTagAndLength(formatBytes);
for(TagAndLength tal : formatList){
recordLength+=tal.getLength();
}
}
public List<TagAndLength> getTagAndLengthList(){
return formatList;
}
public int getRecordLength(){
return recordLength;
}
@Override
public String toString(){
StringWriter sw = new StringWriter();
dump(new PrintWriter(sw), 0);
return sw.toString();
}
public void dump(PrintWriter pw, int indent){
pw.println(Util.getSpaces(indent)+"Log Format:");
String indentStr = Util.getSpaces(indent+Log.INDENT_SIZE);
for(TagAndLength tagAndLength : formatList){
int length = tagAndLength.getLength();
pw.println(indentStr+tagAndLength.getTag().getName() + " ("+length+ " "+(length==1?"byte":"bytes")+")");
}
}
}