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Simply utility methods used across other Molindo projects
/**
* Copyright 2010 Molindo GmbH
*
* 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 at.molindo.utils.io;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.MalformedInputException;
import java.nio.charset.UnmappableCharacterException;
public final class CharsetUtils {
public static final String US_ASCII_NAME = "US-ASCII";
public static final String ISO_8859_1_NAME = "ISO-8859-1";
public static final String UTF_8_NAME = "UTF-8";
public static final String UTF_16_NAME = "UTF-16";
public static final String UTF_16LE_NAME = "UTF-16LE";
public static final String UTF_16BE_NAME = "UTF-16BE";
public static final Charset US_ASCII = Charset.forName(US_ASCII_NAME);
public static final Charset ISO_8859_1 = Charset.forName(ISO_8859_1_NAME);
public static final Charset UTF_8 = Charset.forName(UTF_8_NAME);
public static final Charset UTF_16 = Charset.forName(UTF_16_NAME);
public static final Charset UTF_16LE = Charset.forName(UTF_16LE_NAME);
public static final Charset UTF_16BE = Charset.forName(UTF_16BE_NAME);
private CharsetUtils() {
}
public static boolean is(final String str, Charset charset) {
try {
charset.newEncoder().onMalformedInput(CodingErrorAction.REPORT)
.onUnmappableCharacter(CodingErrorAction.REPORT).encode(CharBuffer.wrap(str));
return true;
} catch (UnmappableCharacterException e) {
return false;
} catch (MalformedInputException e) {
return false;
} catch (CharacterCodingException e) {
return false;
}
}
}