org.jopendocument.dom.ODValueType Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008-2013 jOpenDocument, by ILM Informatique. All rights reserved.
*
* The contents of this file are subject to the terms of the GNU
* General Public License Version 3 only ("GPL").
* You may not use this file except in compliance with the License.
* You can obtain a copy of the License at http://www.gnu.org/licenses/gpl-3.0.html
* See the License for the specific language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each file.
*
*/
package org.jopendocument.dom;
import org.jopendocument.util.FormatGroup;
import org.jopendocument.util.TimeUtils;
import org.jopendocument.util.XMLDateFormat;
import java.math.BigDecimal;
import java.text.Format;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import javax.xml.datatype.Duration;
/**
* A type of value, as per 16.1 "Data Types" and 6.7.1 "Variable Value Types and Values"
*/
public enum ODValueType {
/**
* Parses to {@link BigDecimal} to return the exact number.
*/
FLOAT("value", Number.class) {
@Override
public String format(Object o) {
// avoid 1.23E+3
if (o instanceof BigDecimal)
return ((BigDecimal) o).toPlainString();
else
return ((Number) o).toString();
}
@Override
public BigDecimal parse(String s) {
return new BigDecimal(s);
}
},
PERCENTAGE("value", Number.class) {
@Override
public String format(Object o) {
return FLOAT.format(o);
}
@Override
public Object parse(String s) {
return FLOAT.parse(s);
}
},
CURRENCY("value", Number.class) {
@Override
public String format(Object o) {
return FLOAT.format(o);
}
@Override
public Object parse(String s) {
return FLOAT.parse(s);
}
},
DATE("date-value", Date.class, Calendar.class) {
@Override
public String format(Object o) {
final Date d = o instanceof Calendar ? ((Calendar) o).getTime() : (Date) o;
return DATE_FORMAT.format(d);
}
@Override
public Date parse(String date) {
if (date.length() == 0)
return null;
else {
try {
return (Date) DATE_FORMAT.parseObject(date);
} catch (ParseException e) {
throw new IllegalStateException("wrong date: " + date, e);
}
}
}
},
TIME("time-value", Duration.class, Calendar.class) {
@Override
public String format(Object o) {
if (o instanceof Duration) {
return o.toString();
} else {
final Calendar cal = (Calendar) o;
return TimeUtils.timePartToDuration(cal).toString();
}
}
@Override
public Duration parse(String date) {
if (date.length() == 0)
return null;
else {
return TimeUtils.getTypeFactory().newDuration(date);
}
}
},
BOOLEAN("boolean-value", Boolean.class) {
@Override
public String format(Object o) {
return ((Boolean) o).toString().toLowerCase();
}
@Override
public Boolean parse(String s) {
return Boolean.valueOf(s);
}
},
STRING("string-value", String.class) {
@Override
public String format(Object o) {
return o.toString();
}
@Override
public String parse(String s) {
return s;
}
};
private final String attr;
private final List> acceptedClasses;
private ODValueType(String attr, Class... classes) {
this.attr = attr;
this.acceptedClasses = Arrays.asList(classes);
}
/**
* The name of the value attribute for this value type.
*
* @return the value attribute, eg "boolean-value".
*/
public final String getValueAttribute() {
return this.attr;
}
public boolean canFormat(Class toFormat) {
for (final Class c : this.acceptedClasses)
if (c.isAssignableFrom(toFormat))
return true;
return false;
}
public abstract String format(Object o);
public abstract Object parse(String s);
/**
* The value for the value-type attribute.
*
* @return the value for the value-type attribute, eg "float".
*/
public final String getName() {
return this.name().toLowerCase();
}
/**
* The instance for the passed value type.
*
* @param name the value of the value-type attribute, e.g. "date".
* @return the corresponding instance, never null
, e.g. {@link #DATE}.
* @throws IllegalArgumentException if name
isn't a valid type.
*/
public static ODValueType get(String name) {
return ODValueType.valueOf(name.toUpperCase());
}
/**
* Try to guess the value type for the passed object.
*
* @param o the object.
* @return a value type capable of formatting o
or null
.
* @throws NullPointerException if o
is null
.
*/
public static ODValueType forObject(Object o) throws NullPointerException {
if (o == null)
throw new NullPointerException();
if (o instanceof Number)
return FLOAT;
else if (o instanceof Boolean)
return BOOLEAN;
else if (o instanceof String)
return STRING;
else if (o instanceof Duration)
return TIME;
else if (DATE.canFormat(o.getClass()))
return DATE;
else
return null;
}
// see http://www.w3.org/TR/2004/REC-xmlschema-2-20041028/#isoformats
static private final Format DATE_FORMAT;
static {
// first date and time so we don't loose time information on format() or parse()
// MAYBE add HH':'mm':'ss,SSS for OOo 1
DATE_FORMAT = new FormatGroup(new XMLDateFormat(), new SimpleDateFormat("yyyy-MM-dd'T'HH':'mm':'ss"), new SimpleDateFormat("yyyy-MM-dd"));
}
}