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org.joda.convert.JDKStringConverter Maven / Gradle / Ivy
/*
* Copyright 2010-present Stephen Colebourne
*
* 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.joda.convert;
import java.io.File;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.net.UnknownHostException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Currency;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import javax.xml.bind.DatatypeConverter;
/**
* Conversion between JDK classes and a {@code String}.
*/
enum JDKStringConverter implements StringConverter {
/**
* String converter.
*/
STRING(String.class) {
public Object convertFromString(Class cls, String str) {
return str;
}
},
/**
* CharSequence converter.
*/
CHAR_SEQUENCE(CharSequence.class) {
public Object convertFromString(Class cls, String str) {
return str;
}
},
/**
* StringBuffer converter.
*/
STRING_BUFFER(StringBuffer.class) {
public Object convertFromString(Class cls, String str) {
return new StringBuffer(str);
}
},
/**
* StringBuilder converter.
*/
STRING_BUILDER(StringBuilder.class) {
public Object convertFromString(Class cls, String str) {
return new StringBuilder(str);
}
},
/**
* Long converter.
*/
LONG(Long.class) {
public Object convertFromString(Class cls, String str) {
return new Long(str);
}
},
/**
* Integer converter.
*/
INTEGER(Integer.class) {
public Object convertFromString(Class cls, String str) {
return new Integer(str);
}
},
/**
* Short converter.
*/
SHORT (Short.class) {
public Object convertFromString(Class cls, String str) {
return new Short(str);
}
},
/**
* Byte converter.
*/
BYTE(Byte.class) {
public Object convertFromString(Class cls, String str) {
return new Byte(str);
}
},
/**
* String converter.
*/
BYTE_ARRAY(byte[].class) {
@Override
public String convertToString(Object object) {
return DatatypeConverter.printBase64Binary((byte[]) object);
}
public Object convertFromString(Class cls, String str) {
return DatatypeConverter.parseBase64Binary(str);
}
},
/**
* Character converter.
*/
CHARACTER(Character.class) {
public Object convertFromString(Class cls, String str) {
if (str.length() != 1) {
throw new IllegalArgumentException("Character value must be a string length 1");
}
return new Character(str.charAt(0));
}
},
/**
* String converter.
*/
CHAR_ARRAY(char[].class) {
@Override
public String convertToString(Object object) {
return new String((char[]) object);
}
public Object convertFromString(Class cls, String str) {
return str.toCharArray();
}
},
/**
* Boolean converter.
*/
BOOLEAN(Boolean.class) {
public Object convertFromString(Class cls, String str) {
if ("true".equalsIgnoreCase(str)) {
return Boolean.TRUE;
}
if ("false".equalsIgnoreCase(str)) {
return Boolean.FALSE;
}
throw new IllegalArgumentException("Boolean value must be 'true' or 'false', case insensitive");
}
},
/**
* Double converter.
*/
DOUBLE(Double.class) {
public Object convertFromString(Class cls, String str) {
return new Double(str);
}
},
/**
* Float converter.
*/
FLOAT(Float.class) {
public Object convertFromString(Class cls, String str) {
return new Float(str);
}
},
/**
* BigInteger converter.
*/
BIG_INTEGER(BigInteger.class) {
public Object convertFromString(Class cls, String str) {
return new BigInteger(str);
}
},
/**
* BigDecimal converter.
*/
BIG_DECIMAL(BigDecimal.class) {
public Object convertFromString(Class cls, String str) {
return new BigDecimal(str);
}
},
/**
* AtomicLong converter.
*/
ATOMIC_LONG(AtomicLong.class) {
public Object convertFromString(Class cls, String str) {
long val = Long.parseLong(str);
return new AtomicLong(val);
}
},
/**
* AtomicLong converter.
*/
ATOMIC_INTEGER(AtomicInteger.class) {
public Object convertFromString(Class cls, String str) {
int val = Integer.parseInt(str);
return new AtomicInteger(val);
}
},
/**
* AtomicBoolean converter.
*/
ATOMIC_BOOLEAN(AtomicBoolean.class) {
public Object convertFromString(Class cls, String str) {
if ("true".equalsIgnoreCase(str)) {
return new AtomicBoolean(true);
}
if ("false".equalsIgnoreCase(str)) {
return new AtomicBoolean(false);
}
throw new IllegalArgumentException("Boolean value must be 'true' or 'false', case insensitive");
}
},
/**
* Locale converter.
*/
LOCALE(Locale.class) {
public Object convertFromString(Class cls, String str) {
String[] split = str.split("_", 3);
switch (split.length) {
case 1:
return new Locale(split[0]);
case 2:
return new Locale(split[0], split[1]);
case 3:
return new Locale(split[0], split[1], split[2]);
}
throw new IllegalArgumentException("Unable to parse Locale: " + str);
}
},
/**
* Class converter.
*/
CLASS(Class.class) {
@Override
public String convertToString(Object object) {
return ((Class) object).getName();
}
public Object convertFromString(Class cls, String str) {
try {
return RenameHandler.INSTANCE.lookupType(str);
} catch (ClassNotFoundException ex) {
throw new RuntimeException("Unable to create type: " + str, ex);
}
}
},
/**
* Package converter.
*/
PACKAGE(Package.class) {
@Override
public String convertToString(Object object) {
return ((Package) object).getName();
}
public Object convertFromString(Class cls, String str) {
return Package.getPackage(str);
}
},
/**
* Currency converter.
*/
CURRENCY(Currency.class) {
public Object convertFromString(Class cls, String str) {
return Currency.getInstance(str);
}
},
/**
* TimeZone converter.
*/
TIME_ZONE(TimeZone.class) {
@Override
public String convertToString(Object object) {
return ((TimeZone) object).getID();
}
public Object convertFromString(Class cls, String str) {
return TimeZone.getTimeZone(str);
}
},
/**
* UUID converter.
*/
UUID(UUID.class) {
public Object convertFromString(Class cls, String str) {
return java.util.UUID.fromString(str);
}
},
/**
* URL converter.
*/
URL(URL.class) {
public Object convertFromString(Class cls, String str) {
try {
return new URL(str);
} catch (MalformedURLException ex) {
throw new RuntimeException(ex.getMessage(), ex);
}
}
},
/**
* URI converter.
*/
URI(URI.class) {
public Object convertFromString(Class cls, String str) {
return java.net.URI.create(str);
}
},
/**
* InetAddress converter.
*/
INET_ADDRESS(InetAddress.class) {
@Override
public String convertToString(Object object) {
return ((InetAddress) object).getHostAddress();
}
public Object convertFromString(Class cls, String str) {
try {
return InetAddress.getByName(str);
} catch (UnknownHostException ex) {
throw new RuntimeException(ex);
}
}
},
/**
* File converter.
*/
FILE(File.class) {
public Object convertFromString(Class cls, String str) {
return new File(str);
}
},
/**
* Date converter.
*/
DATE(Date.class) {
@Override
public String convertToString(Object object) {
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
String str = f.format(object);
return str.substring(0, 26) + ":" + str.substring(26);
}
public Object convertFromString(Class cls, String str) {
if (str.length() != 29) {
throw new IllegalArgumentException("Unable to parse date: " + str);
}
str = str.substring(0, 26) + str.substring(27);
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
try {
return f.parseObject(str);
} catch (ParseException ex) {
throw new RuntimeException(ex);
}
}
},
/**
* Calendar converter.
*/
CALENDAR(Calendar.class) {
@Override
public String convertToString(Object object) {
if (object instanceof GregorianCalendar == false) {
throw new RuntimeException("Unable to convert calendar as it is not a GregorianCalendar");
}
GregorianCalendar cal = (GregorianCalendar) object;
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
f.setCalendar(cal);
String str = f.format(cal.getTime());
return str.substring(0, 26) + ":" + str.substring(26) + "[" + cal.getTimeZone().getID() + "]";
}
public Object convertFromString(Class cls, String str) {
if (str.length() < 31 || str.charAt(26) != ':'
|| str.charAt(29) != '[' || str.charAt(str.length() - 1) != ']') {
throw new IllegalArgumentException("Unable to parse date: " + str);
}
TimeZone zone = TimeZone.getTimeZone(str.substring(30, str.length() - 1));
str = str.substring(0, 26) + str.substring(27, 29);
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
GregorianCalendar cal = new GregorianCalendar(zone);
cal.setTimeInMillis(0);
f.setCalendar(cal);
try {
f.parseObject(str);
return f.getCalendar();
} catch (ParseException ex) {
throw new RuntimeException(ex);
}
}
},
/**
* Enum converter.
*/
ENUM(Enum.class) {
@SuppressWarnings("rawtypes")
public String convertToString(Object object) {
return ((Enum) object).name(); // avoid toString() as that can be overridden
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public Object convertFromString(Class cls, String str) {
return RenameHandler.INSTANCE.lookupEnum(cls, str);
}
},
;
/** The type. */
private Class type;
/**
* Creates an enum.
* @param type the type, not null
*/
private JDKStringConverter(Class type) {
this.type = type;
}
/**
* Gets the type of the converter.
* @return the type, not null
*/
Class getType() {
return type;
}
//-----------------------------------------------------------------------
public String convertToString(Object object) {
return object.toString();
}
}
