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/*
* ******************************************************************************
* *
* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.common.tools;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
//B = Base
public class BTools {
//
/**
* getMtLvESS
* public static String getMtLvESS( int mtLv )
* Returns string. String length create indentation(shift) of other text.
* Indentation depends on method level - great method level, great indentation.
* Main method has method level 0.
* Other called method has method level 1, 2,...N.
* @param mtLv - method level
* @return method level external shift string
*/
public static String getMtLvESS( int mtLv ) {
// MtLvESS = Method Level External Shift String
//
if ( mtLv < 0 ) return "?";
//
String Result = "";
//
// String LvS = ". ";
String LvS = ".";
//
for ( int K = 1; K <= mtLv; K ++ ) {
//
Result = Result + LvS;
}
//
return Result;
}
/**
* getMtLvISS
* public static String getMtLvISS()
* Returns string. String create indentation(shift)
* internal text to start text of method.
*
* @return method level internal shift string
*/
public static String getMtLvISS() {
// MtLvISS = Method Level Intern Shift String
//
// String Result = "..";
// String Result = "~";
String Result = " ";
//
return Result;
}
/**
* getSpaces
* public static String getSpaces( int SpacesCount )
* Returns asked count of spaces.
* If count of spaces is < 0 returns '?'.
* @param SpacesCount = spaces count
* @return spaces
*/
public static String getSpaces( int SpacesCount ) {
//
if ( SpacesCount < 0 ) return "?";
//
String Info = "";
//
for ( int K = 1; K <= SpacesCount; K ++ ) {
Info += " ";
}
//
//
return Info;
}
/**
* getSBln
* public static String getSBln( boolean... blnA )
* Returns boolean(s) converted to char (true = 'T'; false = 'F')
* If blnA.length is > 1 returns chars without separator.
* If blnA is '{ true, false, true }' returns 'TFT'.
* If blnA is null returns '?'.
* If blnA.length is 0 returns '?'.
* @param blnA
* @return boolean(s) as string
*/
public static String getSBln( boolean... blnA ) {
//
String Info = "";
//
if ( blnA == null ) return "?";
if ( blnA.length == 0 ) return "?";
//
for ( int K = 0; K < blnA.length; K ++ ) {
//
Info += ( blnA[ K ] )? "T" : "F";
}
//
return Info;
}
/**
* getSDbl
* public static String getSDbl( double Value, int DecPrec )
* Returns double converted to string.
* If Value is Double.NaN returns "NaN".
* If DecPrec is < 0 is DecPrec set 0.
*
* @param Value - value
* @param DecPrec - decimal precision
* @return double as string
*/
public static String getSDbl( double Value, int DecPrec ) {
//
String Result = "";
//
if ( Double.isNaN( Value ) ) return "NaN";
//
if ( DecPrec < 0 ) DecPrec = 0;
//
String DFS = "###,###,##0";
//
if ( DecPrec > 0 ) {
int idx = 0;
DFS += ".";
while ( idx < DecPrec ) {
DFS = DFS + "0";
idx ++;
if ( idx > 100 ) break;
}
}
//
// Locale locale = new Locale("en", "UK");
//
DecimalFormatSymbols DcmFrmSmb = new DecimalFormatSymbols( Locale.getDefault());
DcmFrmSmb.setDecimalSeparator('.');
DcmFrmSmb.setGroupingSeparator(' ');
//
DecimalFormat DcmFrm;
//
DcmFrm = new DecimalFormat( DFS, DcmFrmSmb );
//
// DcmFrm.setGroupingSize( 3 );
//
Result = DcmFrm.format( Value );
//
return Result;
}
/**
* getSDbl
* public static String getSDbl( double Value, int DecPrec, boolean ShowPlusSign )
* Returns double converted to string.
* If Value is Double.NaN returns "NaN".
* If DecPrec is < 0 is DecPrec set 0.
* If ShowPlusSign is true:
* - If Value is > 0 sign is '+'.
* - If Value is 0 sign is ' '.
* @param Value - value
* @param DecPrec - decimal precision
* @param ShowPlusSign - show plus sign
* @return double as string
*/
public static String getSDbl( double Value, int DecPrec, boolean ShowPlusSign ) {
//
String PlusSign = "";
//
if ( ShowPlusSign && Value > 0 ) PlusSign = "+";
if ( ShowPlusSign && Value == 0 ) PlusSign = " ";
//
return PlusSign + getSDbl( Value, DecPrec );
}
/**
* getSDbl
* public static String getSDbl( double Value, int DecPrec, boolean ShowPlusSign, int StringLength )
* Returns double converted to string.
* If Value is Double.NaN returns "NaN".
* If DecPrec is < 0 is DecPrec set 0.
* If ShowPlusSign is true:
* - If Value is > 0 sign is '+'.
* - If Value is 0 sign is ' '.
* If StringLength is > base double string length
* before base double string adds relevant spaces.
* If StringLength is <= base double string length
* returns base double string.
* @param Value - value
* @param DecPrec - decimal precision
* @param ShowPlusSign - show plus sign
* @param StringLength - string length
* @return double as string
*/
public static String getSDbl( double Value, int DecPrec, boolean ShowPlusSign, int StringLength ) {
//
String Info = "";
//
String SDbl = getSDbl( Value, DecPrec, ShowPlusSign );
//
if ( SDbl.length() >= StringLength ) return SDbl;
//
// String SpacesS = " ";
String SpacesS = getSpaces( StringLength );
//
Info = SpacesS.substring( 0, StringLength - SDbl.length() ) + SDbl;
//
return Info;
}
/**
* getSInt
* public static String getSInt( int Value, int CharsCount )
* Returns int converted to string.
* If CharsCount > base int string length
* before base int string adds relevant spaces.
* If CharsCount <= base int string length
* returns base int string.
* @param Value - value
* @param CharsCount - chars count
* @return int as string
*/
public static String getSInt( int Value, int CharsCount ) {
//
return getSInt( Value, CharsCount, ' ' );
}
/**
* getSInt
* public static String getSInt( int Value, int CharsCount, char LeadingChar )
* Returns int converted to string.
* If CharsCount > base int string length
* before base int string adds relevant leading chars.
* If CharsCount <= base int string length
* returns base int string.
*
* @param Value - value
* @param CharsCount - chars count
* @param LeadingChar - leading char
* @return int as string
*/
public static String getSInt( int Value, int CharsCount, char LeadingChar ) {
//
String Result = "";
//
if ( CharsCount <= 0 ) {
return getSInt( Value );
}
//
String FormatS = "";
if ( LeadingChar == '0' ) {
FormatS = "%" + LeadingChar + Integer.toString( CharsCount ) + "d";
}
else {
FormatS = "%" + Integer.toString( CharsCount ) + "d";
}
//
Result = String.format( FormatS, Value );
//
return Result;
}
/**
* getSInt
* public static String getSInt( int Value )
* Returns int converted to string.
* @param Value
* @return int as string
*/
public static String getSInt( int Value ) {
//
String Result = "";
//
Result = String.format( "%d", Value );
//
return Result;
}
/**
* getSIntA
* public static String getSIntA( int... intA )
* Returns intA converted to string.
* Strings are separated with ", ".
* If intA is null returns '?'.
* If intA.length is 0 returns '?'.
* @param intA - int value(s) (one or more)
* @return int... as string
*/
// public static String getSIntA( int[] intA ) {
public static String getSIntA( int... intA ) {
//
String Info = "";
//
if ( intA == null ) return "?";
if ( intA.length == 0 ) return "?";
//
for ( int K = 0; K < intA.length; K ++ ) {
//
Info += ( Info.isEmpty() )? "" : ", ";
Info += BTools.getSInt( intA[ K ] );
}
//
return Info;
}
/**
* getIndexCharsCount
* public static int getIndexCharsCount( int MaxIndex )
* Returns chars count for max value of index.
* Example: Max value of index is 150 and chars count is 3.
* It is important for statement of indexed values.
* Index columns can have the same width for all rouws.
* @param MaxIndex - max value of index
* @return chars count for max value of index
*/
public static int getIndexCharsCount( int MaxIndex ) {
//
int CharsCount = 1;
//
if ( MaxIndex <= 0 ) return 1;
//
CharsCount = (int)Math.log10( MaxIndex ) + 1;
//
return CharsCount;
}
/**
* getSLcDtTm
* public static String getSLcDtTm()
* Returns local datetime as string.
* Datetime format is "mm:ss.SSS".
* @return local datetime as string
*/
public static String getSLcDtTm() {
//
return getSLcDtTm( "mm:ss.SSS" );
}
/**
* getSLcDtTm
* public static String getSLcDtTm( String FormatS )
* Returns local datetime as string.
* Datetime format is param.
* @param FormatS datetime format
* @return local datetime as string
*/
public static String getSLcDtTm( String FormatS ) {
//
String Result = "?";
//
LocalDateTime LDT = LocalDateTime.now();
//
Result = "LDTm: " + LDT.format( DateTimeFormatter.ofPattern( FormatS ) );
//
return Result;
}
}
