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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: QualifiedValueMap.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2000 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.resource;
import com.ibm.as400.access.AS400;
import com.ibm.as400.access.ExtendedIllegalArgumentException;
import com.ibm.as400.access.ExtendedIllegalStateException;
import com.ibm.as400.access.IllegalPathNameException;
import com.ibm.as400.access.QSYSObjectPathName;
import com.ibm.as400.access.Trace;
import java.io.Serializable;
import java.util.Date;
/**
The QualifiedValueMap class maps between a logical value
and a variety of qualified name formats for a physical value.
**/
class QualifiedValueMap
implements ValueMap, Serializable
{
private static final String copyright = "Copyright (C) 1997-2000 International Business Machines Corporation and others.";
static final long serialVersionUID = 4L;
// Date formats.
public static final int FORMAT_20 = 20; // OOOOOOOOOOLLLLLLLLLL
public static final int FORMAT_CL = 13; // LLLLLLLLLL/OOOOOOOOOO
// Private data.
private int format_ = -1;
private String type_ = null;
/**
Constructs a QualifiedValueMap object.
@param format The format.
@param type The object type.
**/
public QualifiedValueMap(int format, String type)
{
if ((format != FORMAT_20) && (format != FORMAT_CL))
throw new ExtendedIllegalArgumentException("format", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
if (type == null)
throw new NullPointerException("type");
format_ = format;
type_ = type;
}
/**
Maps from a logical value to a physical value.
@param logicalValue The logical value.
@param system The system.
@return The physical value.
**/
public Object ltop(Object logicalValue, AS400 system)
{
if (logicalValue == null)
throw new NullPointerException("logicalValue");
if (!(logicalValue instanceof String))
throw new ExtendedIllegalArgumentException("logicalValue", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
String asString = (String)logicalValue;
if (asString.length() == 0)
throw new ExtendedIllegalArgumentException("logicalValue", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
QSYSObjectPathName asPath;
StringBuffer buffer = new StringBuffer();
switch(format_) {
case FORMAT_20:
// If a special value has been specified...
if (asString.length() <= 10)
buffer.append(normalize(asString, 20));
else {
try {
asPath = new QSYSObjectPathName(asString);
buffer.append(normalize(asPath.getObjectName(), 10));
buffer.append(normalize(asPath.getLibraryName(), 10));
}
catch(IllegalPathNameException e) {
if (Trace.isTraceOn())
Trace.log(Trace.ERROR, "Bad path name", e);
throw new ExtendedIllegalArgumentException("logicalValue", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
}
}
break;
case FORMAT_CL:
// If a special value has been specified...
if (asString.length() <= 10)
buffer.append(asString);
else {
try {
asPath = new QSYSObjectPathName(asString);
buffer.append(asPath.getLibraryName());
buffer.append('/');
buffer.append(asPath.getObjectName()); }
catch(IllegalPathNameException e) {
if (Trace.isTraceOn())
Trace.log(Trace.ERROR, "Bad path name", e);
throw new ExtendedIllegalArgumentException("logicalValue", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
}
}
break;
// If the format specified is bad...
default:
throw new ExtendedIllegalStateException("format", ExtendedIllegalStateException.UNKNOWN);
}
return buffer.toString();
}
/**
Maps from a physical value to a logical value.
@param physicalValue The physical value.
@param system The system.
@return The logical value.
**/
public Object ptol(Object physicalValue, AS400 system)
{
// Validate the physical value.
if (physicalValue == null)
throw new NullPointerException("physicalValue");
if (!(physicalValue instanceof String))
throw new ExtendedIllegalArgumentException("physicalValue", ExtendedIllegalArgumentException.PARAMETER_VALUE_NOT_VALID);
String asString = (String)physicalValue;
switch(format_) {
case FORMAT_20:
// If a special value has been specified...
if (asString.length() <= 10)
return asString;
else
return QSYSObjectPathName.toPath(asString.substring(10).trim(),
asString.substring(0,10).trim(),
type_);
case FORMAT_CL:
return QSYSObjectPathName.toPath(asString.substring(11,21).trim(),
asString.substring(0,10).trim(),
type_);
// If the format specified is bad...
default:
throw new ExtendedIllegalStateException("format", ExtendedIllegalStateException.UNKNOWN);
}
}
/**
Normalizes a String to a fixed length. This will truncate or pad
with spaces as needed.
@param source The source String.
@param length The fixed length.
@return The normalized String.
**/
private static String normalize(String source, int length)
{
int sourceLength = source.length();
if (sourceLength < length) {
StringBuffer buffer = new StringBuffer(source);
for(int i = sourceLength; i < length; ++i)
buffer.append(' ');
return buffer.toString();
}
else if (sourceLength > length)
return source.substring(0, length);
else
return source;
}
}