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145 lines (134 loc) · 4.17 KB
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// ============================================================================
//
// Copyright (c) 2006-2015, Talend Inc.
//
// This source code has been automatically generated by_Talend Open Studio for Big Data
// / 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 routines;
import java.math.BigDecimal;
public class Numeric {
private static final java.util.Map<String, Integer> seq_Hash = new java.util.HashMap<String, Integer>();
/**
* return an incremented numeric id
*
* {talendTypes} int | Integer
*
* {Category} Numeric
*
* {param} string("s1") sequence identifier
*
* {param} int(1) start value
*
* {param} int(1) step
*
* {example} sequence("s1", 1, 1) # 1, 2, 3, ...
*
* {example} sequence("s2", 100, -2) # 100, 98, 96, ...
*
*/
public static Integer sequence(String seqName, int startValue, int step) {
if (seq_Hash.containsKey(seqName)) {
seq_Hash.put(seqName, seq_Hash.get(seqName) + step);
return seq_Hash.get(seqName);
} else {
seq_Hash.put(seqName, startValue);
return startValue;
}
}
/**
* create a sequence if not exists and put a new startValue
*
* {Category} Numeric
*
* {param} string("s1") sequence identifier
*
* {param} int(1) start value
*
* {example} sequence("s1", 1)
*
*/
public static void resetSequence(String seqName, int startValue) {
seq_Hash.put(seqName, startValue);
}
/**
* remove a sequence
*
* {Category} Numeric
*
* {param} string("s1") sequence identifier
*
* {example} sequence("s1")
*
*/
public static void removeSequence(String seqName) {
if (seq_Hash.containsKey(seqName)) {
seq_Hash.remove(seqName);
}
}
/**
* return a random int between min and max
*
* {Category} Numeric
*
* {talendTypes} int | Integer
*
* {param} int(0) min value
*
* {param} int(100) max value
*
* {example} random(3, 10) # 7, 4, 8, ...
*
* {example} random(0, 100) # 93, 12, 83, ...
*
*/
public static Integer random(Integer min, Integer max) {
return ((Long) Math.round(min - 0.5 + (Math.random() * (max - min + 1)))).intValue();
}
/**
* return numbers using an implied decimal format.
*
* {Category} Numeric
*
* {talendTypes} float | Float
*
* {param} String("9V99") format: float pointing format.
*
* {param} String("123") toConvert: read this value.
*
* {example} convertImpliedDecimalFormat("9V99", "123") result: 1.23 ...
*
*/
public static Float convertImpliedDecimalFormat(String format, String toConvert) {
BigDecimal decimal = Numeric.convertString2BigDecimal(format,toConvert);
return new Float(decimal.doubleValue());
}
public static BigDecimal convertString2BigDecimal(String format, String toConvert) {
long decimalPlace = 1;
int indexOf = format.indexOf('V');
if (indexOf > -1) {
boolean isV = false;
for (int i = 0; i < format.length(); i++) {
char charAt = format.charAt(i);
if (charAt == '9' && isV) {
decimalPlace = 10 * decimalPlace;
} else if (charAt == 'V') {
isV = true;
}
}
}
BigDecimal decimal = new BigDecimal(toConvert);
decimal = decimal.divide(new BigDecimal(decimalPlace));
return decimal;
}
}