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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You 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 org.apache.poi.ss.formula.constant;
-
- import org.apache.poi.ss.usermodel.FormulaError;
- import org.apache.poi.util.POILogFactory;
- import org.apache.poi.util.POILogger;
- /**
- * Represents a constant error code value as encoded in a constant values array. <p>
- *
- * This class is a type-safe wrapper for a 16-bit int value performing a similar job to
- * <tt>ErrorEval</tt>.
- */
- public final class ErrorConstant {
- private static final POILogger LOG = POILogFactory.getLogger(ErrorConstant.class);
- private static final ErrorConstant NULL = new ErrorConstant(FormulaError.NULL.getCode());
- private static final ErrorConstant DIV_0 = new ErrorConstant(FormulaError.DIV0.getCode());
- private static final ErrorConstant VALUE = new ErrorConstant(FormulaError.VALUE.getCode());
- private static final ErrorConstant REF = new ErrorConstant(FormulaError.REF.getCode());
- private static final ErrorConstant NAME = new ErrorConstant(FormulaError.NAME.getCode());
- private static final ErrorConstant NUM = new ErrorConstant(FormulaError.NUM.getCode());
- private static final ErrorConstant NA = new ErrorConstant(FormulaError.NA.getCode());
-
- private final int _errorCode;
-
- private ErrorConstant(int errorCode) {
- _errorCode = errorCode;
- }
-
- public int getErrorCode() {
- return _errorCode;
- }
-
- public String getText() {
- if(FormulaError.isValidCode(_errorCode)) {
- return FormulaError.forInt(_errorCode).getString();
- }
- return "unknown error code (" + _errorCode + ")";
- }
-
- public static ErrorConstant valueOf(int errorCode) {
- if (FormulaError.isValidCode(errorCode)) {
- switch (FormulaError.forInt(errorCode)) {
- case NULL: return NULL;
- case DIV0: return DIV_0;
- case VALUE: return VALUE;
- case REF: return REF;
- case NAME: return NAME;
- case NUM: return NUM;
- case NA: return NA;
- default: break;
- }
- }
- LOG.log( POILogger.WARN, "Warning - unexpected error code (", errorCode, ")");
- return new ErrorConstant(errorCode);
- }
-
- public String toString() {
- StringBuilder sb = new StringBuilder(64);
- sb.append(getClass().getName()).append(" [");
- sb.append(getText());
- sb.append("]");
- return sb.toString();
- }
- }
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