1 files changed, 78 insertions, 0 deletions
diff --git a/id/moa-id-webgui/src/main/java/at/gv/egovernment/moa/id/config/webgui/validation/utils/CompanyNumberValidator.java b/id/moa-id-webgui/src/main/java/at/gv/egovernment/moa/id/config/webgui/validation/utils/CompanyNumberValidator.java
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index 000000000..b9eb76857
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+++ b/id/moa-id-webgui/src/main/java/at/gv/egovernment/moa/id/config/webgui/validation/utils/CompanyNumberValidator.java
@@ -0,0 +1,78 @@
+/*******************************************************************************
+ * Copyright 2014 Federal Chancellery Austria
+ * MOA-ID has been developed in a cooperation between BRZ, the Federal
+ * Chancellery Austria - ICT staff unit, and Graz University of Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ *******************************************************************************/
+package at.gv.egovernment.moa.id.config.webgui.validation.utils;
+
+import org.apache.commons.lang.StringUtils;
+
+import at.gv.egovernment.moa.id.commons.config.MOAIDConfigurationConstants;
+
+public class CompanyNumberValidator implements IdentificationNumberValidator {
+
+	public boolean validate(String commercialRegisterNumber) {
+		
+		String normalizedNumber = commercialRegisterNumber.replaceAll(" ", "");
+		if(normalizedNumber.startsWith(MOAIDConfigurationConstants.IDENIFICATIONTYPE_FN))
+			normalizedNumber = normalizedNumber.substring(2);
+		
+		return checkCommercialRegisterNumber(normalizedNumber);
+	}
+
+	private boolean checkCommercialRegisterNumber(String commercialRegisterNumber) {
+		if (commercialRegisterNumber == null) {
+			return false;
+		}
+		commercialRegisterNumber = StringUtils.leftPad(commercialRegisterNumber, 7,
+		    '0');
+		if (!commercialRegisterNumber.matches("\\d{6}[abdfghikmpstvwxzy]")) {
+			return false;
+		}
+		String digits = commercialRegisterNumber.substring(0,
+		    commercialRegisterNumber.length() - 1);
+		char checkDigit = commercialRegisterNumber.charAt(commercialRegisterNumber
+		    .length() - 1);
+		boolean result = calcCheckDigitFromCommercialRegisterNumber(digits) == checkDigit;
+		return result;
+	}
+
+	public static char calcCheckDigitFromCommercialRegisterNumber(
+	    String commercialRegisterDigits) {
+		final int[] WEIGHT = { 6, 4, 14, 15, 10, 1 };
+		final char[] CHECKDIGIT = { 'a', 'b', 'd', 'f', 'g', 'h', 'i', 'k', 'm',
+		    'p', 's', 't', 'v', 'w', 'x', 'y', 'z' };
+		if (commercialRegisterDigits == null) {
+			throw new NullPointerException("Commercial register number missing.");
+		}
+		commercialRegisterDigits = StringUtils.leftPad(commercialRegisterDigits, 6,
+		    '0');
+		if (!commercialRegisterDigits.matches("\\d{6}")) {
+			throw new IllegalArgumentException(
+			    "Invalid commercial register number provided.");
+		}
+		int sum = 0;
+		for (int i = 0; i < commercialRegisterDigits.length(); i++) {
+			int value = commercialRegisterDigits.charAt(i) - '0';
+			sum += WEIGHT[i] * value;
+		}
+		return CHECKDIGIT[sum % 17];
+	}
+}