/*
* 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.jackrabbit.rmi.value;
import java.math.BigDecimal;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import javax.jcr.PropertyType;
import javax.jcr.ValueFormatException;
/**
* String value.
*/
class StringValue extends AbstractValue {
/**
* Serial version UID.
*/
private static final long serialVersionUID = 220963478492833703L;
/** The string value */
private final String value;
/**
* Creates an instance for the given string <code>value</code>.
*/
public StringValue(String value) {
this.value = value;
}
/**
* Returns {@link PropertyType#STRING}.
*/
public int getType() {
return PropertyType.STRING;
}
/**
* The string is converted using {@link Boolean#valueOf(String)}.
*/
@Override
public boolean getBoolean() {
return Boolean.valueOf(value);
}
/**
* If the string is in the format described in
* {@link DateValue#getString()}, it is converted directly, otherwise
* a {@link ValueFormatException} is thrown.
*/
@Override
public Calendar getDate() throws ValueFormatException {
// check optional leading sign
char sign = '+';
int start = 0;
if (value.startsWith("-")) {
sign = '-';
start = 1;
} else if (value.startsWith("+")) {
sign = '+';
start = 1;
}
// note that we cannot use java.text.SimpleDateFormat for
// parsing because it can't handle years <= 0 and TZD's
int year, month, day, hour, min, sec, ms;
String tzID;
try {
// year (YYYY)
year = Integer.parseInt(value.substring(start, start + 4));
start += 4;
// delimiter '-'
if (value.charAt(start) != '-') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// month (MM)
month = Integer.parseInt(value.substring(start, start + 2));
start += 2;
// delimiter '-'
if (value.charAt(start) != '-') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// day (DD)
day = Integer.parseInt(value.substring(start, start + 2));
start += 2;
// delimiter 'T'
if (value.charAt(start) != 'T') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// hour (hh)
hour = Integer.parseInt(value.substring(start, start + 2));
start += 2;
// delimiter ':'
if (value.charAt(start) != ':') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// minute (mm)
min = Integer.parseInt(value.substring(start, start + 2));
start += 2;
// delimiter ':'
if (value.charAt(start) != ':') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// second (ss)
sec = Integer.parseInt(value.substring(start, start + 2));
start += 2;
// delimiter '.'
if (value.charAt(start) != '.') {
throw new ValueFormatException("Not a date: " + value);
}
start++;
// millisecond (SSS)
ms = Integer.parseInt(value.substring(start, start + 3));
start += 3;
// time zone designator (Z or +00:00 or -00:00)
if (value.charAt(start) == '+' || value.charAt(start) == '-') {
// offset to UTC specified in the format +00:00/-00:00
tzID = "GMT" + value.substring(start);
} else if (value.substring(start).equals("Z")) {
tzID = "GMT";
} else {
throw new ValueFormatException(
"Invalid time zone in a date: " + value);
}
} catch (IndexOutOfBoundsException e) {
throw new ValueFormatException("Not a date: " + value, e);
} catch (NumberFormatException e) {
throw new ValueFormatException("Not a date: " + value, e);
}
TimeZone tz = TimeZone.getTimeZone(tzID);
// verify id of returned time zone (getTimeZone defaults to "GMT")
if (!tz.getID().equals(tzID)) {
throw new ValueFormatException(
"Invalid time zone in a date: " + value);
}
// initialize Calendar object
Calendar cal = Calendar.getInstance(tz);
cal.setLenient(false);
// year and era
if (sign == '-' || year == 0) {
// not CE, need to set era (BCE) and adjust year
cal.set(Calendar.YEAR, year + 1);
cal.set(Calendar.ERA, GregorianCalendar.BC);
} else {
cal.set(Calendar.YEAR, year);
cal.set(Calendar.ERA, GregorianCalendar.AD);
}
// month (0-based!)
cal.set(Calendar.MONTH, month - 1);
// day of month
cal.set(Calendar.DAY_OF_MONTH, day);
// hour
cal.set(Calendar.HOUR_OF_DAY, hour);
// minute
cal.set(Calendar.MINUTE, min);
// second
cal.set(Calendar.SECOND, sec);
// millisecond
cal.set(Calendar.MILLISECOND, ms);
try {
// the following call will trigger an IllegalArgumentException
// if any of the set values are illegal or out of range
cal.getTime();
} catch (IllegalArgumentException e) {
throw new ValueFormatException("Not a date: " + value, e);
}
return cal;
}
/**
* The string is converted using the constructor
* {@link BigDecimal#BigDecimal(String)}.
*/
@Override
public BigDecimal getDecimal() throws ValueFormatException {
try {
return new BigDecimal(value);
} catch (NumberFormatException e) {
throw new ValueFormatException("Not a decimal value: " + value, e);
}
}
/**
* The string is converted using {@link Double#valueOf(String)}.
*/
@Override
public double getDouble() throws ValueFormatException {
try {
return Double.valueOf(value);
} catch (NumberFormatException e) {
throw new ValueFormatException("Not a double value: " + value, e);
}
}
/**
* The string is converted using {@link Long#valueOf(String)}.
*/
@Override
public long getLong() throws ValueFormatException {
try {
return Long.valueOf(value);
} catch (NumberFormatException e) {
throw new ValueFormatException("Not a long value: " + value, e);
}
}
/**
* Returns the string value.
*/
public String getString() {
return value;
}
}