io.netty.handler.codec.CharSequenceValueConverter Maven / Gradle / Ivy
The newest version!
/*
* Copyright 2015 The Netty Project
*
* The Netty Project 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 io.netty.handler.codec;
import io.netty.util.AsciiString;
import io.netty.util.internal.PlatformDependent;
import java.text.ParseException;
import java.util.Date;
/**
* Converts to/from native types, general {@link Object}, and {@link CharSequence}s.
*/
public class CharSequenceValueConverter implements ValueConverter {
public static final CharSequenceValueConverter INSTANCE = new CharSequenceValueConverter();
private static final AsciiString TRUE_ASCII = new AsciiString("true");
@Override
public CharSequence convertObject(Object value) {
if (value instanceof CharSequence) {
return (CharSequence) value;
}
return value.toString();
}
@Override
public CharSequence convertInt(int value) {
return String.valueOf(value);
}
@Override
public CharSequence convertLong(long value) {
return String.valueOf(value);
}
@Override
public CharSequence convertDouble(double value) {
return String.valueOf(value);
}
@Override
public CharSequence convertChar(char value) {
return String.valueOf(value);
}
@Override
public CharSequence convertBoolean(boolean value) {
return String.valueOf(value);
}
@Override
public CharSequence convertFloat(float value) {
return String.valueOf(value);
}
@Override
public boolean convertToBoolean(CharSequence value) {
return AsciiString.contentEqualsIgnoreCase(value, TRUE_ASCII);
}
@Override
public CharSequence convertByte(byte value) {
return String.valueOf(value);
}
@Override
public byte convertToByte(CharSequence value) {
if (value instanceof AsciiString && value.length() == 1) {
return ((AsciiString) value).byteAt(0);
}
return Byte.parseByte(value.toString());
}
@Override
public char convertToChar(CharSequence value) {
return value.charAt(0);
}
@Override
public CharSequence convertShort(short value) {
return String.valueOf(value);
}
@Override
public short convertToShort(CharSequence value) {
if (value instanceof AsciiString) {
return ((AsciiString) value).parseShort();
}
return Short.parseShort(value.toString());
}
@Override
public int convertToInt(CharSequence value) {
if (value instanceof AsciiString) {
return ((AsciiString) value).parseInt();
}
return Integer.parseInt(value.toString());
}
@Override
public long convertToLong(CharSequence value) {
if (value instanceof AsciiString) {
return ((AsciiString) value).parseLong();
}
return Long.parseLong(value.toString());
}
@Override
public CharSequence convertTimeMillis(long value) {
return DateFormatter.format(new Date(value));
}
@Override
public long convertToTimeMillis(CharSequence value) {
Date date = DateFormatter.parseHttpDate(value);
if (date == null) {
PlatformDependent.throwException(new ParseException("header can't be parsed into a Date: " + value, 0));
return 0;
}
return date.getTime();
}
@Override
public float convertToFloat(CharSequence value) {
if (value instanceof AsciiString) {
return ((AsciiString) value).parseFloat();
}
return Float.parseFloat(value.toString());
}
@Override
public double convertToDouble(CharSequence value) {
if (value instanceof AsciiString) {
return ((AsciiString) value).parseDouble();
}
return Double.parseDouble(value.toString());
}
}