// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/dataAccess/iso8211/DDFSubfield.java,v $
// $RCSfile: DDFSubfield.java,v $
// $Revision: 1.2.2.3 $
// $Date: 2004/10/14 18:26:42 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.dataAccess.iso8211;
import com.bbn.openmap.layer.vpf.MutableInt;
/**
* Class containing subfield information for a DDFField object.
*/
public class DDFSubfield {
/**
* A DDFSubfieldDefinition defining the admin part of the file
* that contains the subfield data.
*/
protected DDFSubfieldDefinition defn;
/**
* The object containing the value of the field.
*/
protected Object value;
/**
* The number of bytes the field took up in the data file.
*/
protected int byteSize;
protected DDFSubfield() {}
/**
* Create a subfield with a definition and a value.
*/
public DDFSubfield(DDFSubfieldDefinition ddfsd, Object value) {
setDefn(ddfsd);
setValue(value);
}
/**
* Create a subfield with a definition and the bytes containing
* the information for the value. The definition parameters will
* tell the DDFSubfield what kind of object to create for the
* data.
*/
public DDFSubfield(DDFSubfieldDefinition poSFDefn, byte[] pachFieldData,
int nBytesRemaining) {
defn = poSFDefn;
MutableInt nBytesConsumed = new MutableInt();
DDFDataType ddfdt = poSFDefn.getType();
if (ddfdt == DDFDataType.DDFInt) {
setValue(new Integer(defn.extractIntData(pachFieldData,
nBytesRemaining,
nBytesConsumed)));
} else if (ddfdt == DDFDataType.DDFFloat) {
setValue(new Double(defn.extractFloatData(pachFieldData,
nBytesRemaining,
nBytesConsumed)));
} else if (ddfdt == DDFDataType.DDFString
|| ddfdt == DDFDataType.DDFBinaryString) {
setValue(defn.extractStringData(pachFieldData,
nBytesRemaining,
nBytesConsumed));
}
byteSize = nBytesConsumed.value;
}
public int getByteSize() {
return byteSize;
}
public void setDefn(DDFSubfieldDefinition ddsfd) {
defn = ddsfd;
}
public DDFSubfieldDefinition getDefn() {
return defn;
}
/**
* Set the value of the subfield.
*/
public void setValue(Object o) {
value = o;
}
/**
* Get the value of the subfield.
*/
public Object getValue() {
return value;
}
/**
* Get the value of the subfield as an int. Returns 0 if the value
* is 0 or isn't a number.
*/
public int intValue() {
Object obj = getValue();
if (obj instanceof Number) {
return ((Number) obj).intValue();
}
return 0;
}
/**
* Get the value of the subfield as a float. Returns 0f if the
* value is 0 or isn't a number.
*/
public float floatValue() {
Object obj = getValue();
if (obj instanceof Number) {
return ((Number) obj).floatValue();
}
return 0f;
}
public String stringValue() {
Object obj = getValue();
if (obj != null) {
return obj.toString();
}
return "";
}
/**
* Return a string 'key = value', describing the field and its
* value.
*/
public String toString() {
if (defn != null) {
return defn.getName() + " = " + value;
}
return "";
}
}