/*
* Copyright 2004-2005 the original author or authors.
*
* 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 org.springmodules.validation.valang.functions;
import org.springmodules.validation.util.date.DateParseException;
import org.springmodules.validation.util.date.DateParser;
/**
* <p>Literal function that re-parses date string
* every time the result is asked for.
*
* @author Steven Devijver
* @since 26-04-2005
*/
public class DateLiteralFunction implements Function {
private String value = null;
private DateParser dateParser = null;
private int line = 0;
private int column = 0;
public DateLiteralFunction(String value, DateParser dateParser, int line, int column) {
super();
setValue(value);
setDateParser(dateParser);
setLine(line);
setColumn(column);
}
private void setValue(String value) {
if (value == null) {
throw new IllegalArgumentException("Value parameter must not be null!");
}
this.value = value;
}
private String getValue() {
return this.value;
}
private void setDateParser(DateParser dateParser) {
if (dateParser == null) {
throw new IllegalArgumentException("Date parser argument should not be null!");
}
this.dateParser = dateParser;
}
private DateParser getDateParser() {
return this.dateParser;
}
private void setLine(int line) {
this.line = line;
}
private int getLine() {
return this.line;
}
private void setColumn(int column) {
this.column = column;
}
private int getColumn() {
return this.column;
}
public Object getResult(Object target) {
try {
return getDateParser().parse(getValue());
} catch (DateParseException e) {
throw new RuntimeException("Could not parse date [" + getValue() + "] at line " + getLine() + ", column " + getColumn() + ".");
}
}
}