Java tutorial
/* * ==================================================================== * 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package com.siberhus.tdfl; import java.util.Collection; import java.util.LinkedHashMap; import java.util.Map; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.exception.ExceptionUtils; /** * * @author Hussachai Puripunpinyo (http://www.siberhus.com) * */ public class FieldDataException extends DataFileLoaderException { /** * */ private static final long serialVersionUID = 1L; private Map<String, String> fieldErrors = new LinkedHashMap<String, String>(); /** * Still call DataFileProcessor.processItem(item) even though there are errors. * Apply only instance that DataFileLoader create not user's instance. */ private boolean forceProcess = false; public FieldDataException() { } public FieldDataException(String fieldName, String error) { fieldErrors.put(fieldName, error); } public FieldDataException(String fieldName, Throwable e) { fieldErrors.put(fieldName, translate(e)); } public boolean hasError(String fieldName) { return fieldErrors.containsKey(fieldName); } public boolean hasErrors() { return fieldErrors.size() > 0; } public void addError(String fieldName, String error) { //we can highlight error cell in excel. fieldErrors.put(fieldName, error); } public void addError(String fieldName, Throwable e) { fieldErrors.put(fieldName, translate(e)); } public Collection<String> getErrorFields() { return fieldErrors.keySet(); } public void merge(FieldDataException e) { if (e.hasErrors()) { for (String errorKey : e.fieldErrors.keySet()) { this.fieldErrors.put(errorKey, e.fieldErrors.get(errorKey)); } } } public boolean isForceProcess() { return forceProcess; } public void setForceProcess(boolean forceProcess) { this.forceProcess = forceProcess; } public String toString() { return fieldErrors.toString(); } protected static String translate(Throwable e) { Throwable rootCause = ExceptionUtils.getRootCause(e); if (rootCause != null) { e = rootCause; } if (!StringUtils.isBlank(e.getMessage())) { return e.getMessage(); } return e.getClass().getSimpleName(); } }