info.freelibrary.marc4j.impl.LeaderImpl Maven / Gradle / Ivy
/**
* Copyright (C) 2004 Bas Peters
*
* This file is part of MARC4J
*
* MARC4J 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.
*
* MARC4J 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 MARC4J; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package info.freelibrary.marc4j.impl;
import java.text.DecimalFormat;
import org.marc4j.marc.Leader;
/**
* Represents a record label in a MARC record.
*
* @author Bas Peters
*/
public class LeaderImpl implements Leader {
private Long id;
/** The logical record length (Position 0-4). */
private int recordLength;
/** The record status (Position 5). */
private char recordStatus;
/** Type of record (Position 6). */
private char typeOfRecord;
/** Implementation defined (Position 7-8). */
private char[] implDefined1;
/** Character coding scheme (Position 9). */
private char charCodingScheme;
/** The indicator count (Position 10). */
private int indicatorCount;
/** The subfield code length (Position 11). */
private int subfieldCodeLength;
/** The base address of data (Position 12-16). */
private int baseAddressOfData;
/** Implementation defined (Position 17-18) */
private char[] implDefined2;
/** Entry map (Position 19-23). */
private char[] entryMap;
/**
* Default constructor.
*/
public LeaderImpl() {
}
/**
* Creates a new leader from a String object.
*
* @param ldr the leader string value
*/
public LeaderImpl(final String ldr) {
unmarshal(ldr);
}
/**
* Sets the logical record length (positions 00-04).
*
* @param recordLength integer representing the record length
*/
@Override
public void setRecordLength(final int recordLength) {
this.recordLength = recordLength;
}
/**
* Sets the record status (position 05).
*
* @param recordStatus character representing the record status
*/
@Override
public void setRecordStatus(final char recordStatus) {
this.recordStatus = recordStatus;
}
/**
* Sets the type of record (position 06).
*
* @param typeOfRecord character representing the type of record
*/
@Override
public void setTypeOfRecord(final char typeOfRecord) {
this.typeOfRecord = typeOfRecord;
}
/**
* Sets implementation defined values (position 07-08).
*
* @param implDefined1 character array representing the implementation
* defined data
*/
@Override
public void setImplDefined1(final char[] implDefined1) {
this.implDefined1 = implDefined1;
}
/**
* Sets the character encoding scheme (position 09).
*
* @param charCodingScheme character representing the character encoding
*/
@Override
public void setCharCodingScheme(final char charCodingScheme) {
this.charCodingScheme = charCodingScheme;
}
/**
* Sets the indicator count (position 10).
*
* @param indicatorCount integer representing the number of indicators
* present in a data field
*/
@Override
public void setIndicatorCount(final int indicatorCount) {
this.indicatorCount = indicatorCount;
}
/**
* Sets the subfield code length (position 11).
*
* @param subfieldCodeLength integer representing the subfield code length
*/
@Override
public void setSubfieldCodeLength(final int subfieldCodeLength) {
this.subfieldCodeLength = subfieldCodeLength;
}
/**
* Sets the base address of data (positions 12-16).
*
* @param baseAddressOfData integer representing the base address of data
*/
@Override
public void setBaseAddressOfData(final int baseAddressOfData) {
this.baseAddressOfData = baseAddressOfData;
}
/**
* Sets implementation defined values (positions 17-19).
*
* @param implDefined2 character array representing the implementation
* defined data
*/
@Override
public void setImplDefined2(final char[] implDefined2) {
this.implDefined2 = implDefined2;
}
/**
* Sets the entry map (positions 20-23).
*
* @param entryMap character array representing the entry map
*/
@Override
public void setEntryMap(final char[] entryMap) {
this.entryMap = entryMap;
}
/**
* Returns the logical record length (positions 00-04).
*
* @return int- the record length
*/
@Override
public int getRecordLength() {
return recordLength;
}
/**
* Returns the record status (positions 05).
*
* @return char- the record status
*/
@Override
public char getRecordStatus() {
return recordStatus;
}
/**
* Returns the record type (position 06).
*
* @return char- the record type
*/
@Override
public char getTypeOfRecord() {
return typeOfRecord;
}
/**
* Returns implementation defined values (positions 07-08).
*
* @return char[]- implementation defined values
*/
@Override
public char[] getImplDefined1() {
return implDefined1;
}
/**
* Returns the character coding scheme (position 09).
*
* @return char- the character coding scheme
*/
@Override
public char getCharCodingScheme() {
return charCodingScheme;
}
/**
* Returns the indicator count (positions 10).
*
* @return int- the indicator count
*/
@Override
public int getIndicatorCount() {
return indicatorCount;
}
/**
* Returns the subfield code length (position 11).
*
* @return int- the subfield code length
*/
@Override
public int getSubfieldCodeLength() {
return subfieldCodeLength;
}
/**
* Returns the base address of data (positions 12-16).
*
* @return int- the base address of data
*/
@Override
public int getBaseAddressOfData() {
return baseAddressOfData;
}
/**
* Returns implementation defined values (positions 17-19).
*
* @return char[]- implementation defined values
*/
@Override
public char[] getImplDefined2() {
return implDefined2;
}
/**
* Returns the entry map (positions 20-23).
*
* @return char[]- the entry map
*/
@Override
public char[] getEntryMap() {
return entryMap;
}
/**
*
* Creates a leader object from a string object.
*
*
* Indicator count and subfield code length are defaulted to 2 if they are
* not integer values.
*
*
* @param ldr the leader
*/
@Override
public void unmarshal(final String ldr) {
try {
String s;
s = ldr.substring(0, 5);
if (isInteger(s)) {
setRecordLength(Integer.parseInt(s));
} else {
setRecordLength(0);
}
setRecordStatus(ldr.charAt(5));
setTypeOfRecord(ldr.charAt(6));
setImplDefined1(ldr.substring(7, 9).toCharArray());
setCharCodingScheme(ldr.charAt(9));
s = String.valueOf(ldr.charAt(10));
if (isInteger(s)) {
setIndicatorCount(Integer.parseInt(s));
} else {
setIndicatorCount(2);
}
s = String.valueOf(ldr.charAt(11));
if (isInteger(s)) {
setSubfieldCodeLength(Integer.parseInt(s));
} else {
setSubfieldCodeLength(2);
}
s = ldr.substring(12, 17);
if (isInteger(s)) {
setBaseAddressOfData(Integer.parseInt(s));
} else {
setBaseAddressOfData(0);
}
setImplDefined2(ldr.substring(17, 20).toCharArray());
setEntryMap(ldr.substring(20, 24).toCharArray());
} catch (final NumberFormatException e) {
throw new RuntimeException("Unable to parse leader", e);
}
}
/**
* Creates a string object from this leader object.
*
* @return String - the string object from this leader object
*/
@Override
public String marshal() {
return this.toString();
}
/**
* Returns a string representation of this leader.
*
* Example:
*
*
* 00714cam a2200205 a 4500
*
*/
@Override
public String toString() {
return new StringBuffer().append(format5.format(getRecordLength()))
.append(getRecordStatus()).append(getTypeOfRecord()).append(
getImplDefined1()).append(getCharCodingScheme())
.append(getIndicatorCount()).append(getSubfieldCodeLength())
.append(format5.format(getBaseAddressOfData())).append(
getImplDefined2()).append(getEntryMap()).toString();
}
private boolean isInteger(final String value) {
final int len = value.length();
if (len == 0) {
return false;
}
int i = 0;
do {
switch (value.charAt(i)) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
default:
return false;
}
} while (++i < len);
return true;
}
private static DecimalFormat format5 =
new org.marc4j.util.CustomDecimalFormat(5);
/**
* Sets the ID for the leader.
*/
@Override
public void setId(final Long id) {
this.id = id;
}
/**
* Gets the ID of the leader.
*/
@Override
public Long getId() {
return id;
}
}
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