Java String Decode by Charset getDecoder(Charset charset)

Description

Returns a cached thread-local CharsetDecoder for the specified charset.

License

Open Source License

Declaration

public static CharsetDecoder getDecoder(Charset charset) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;

import java.nio.charset.CodingErrorAction;
import java.util.IdentityHashMap;
import java.util.Map;

public class Main {
    private static final ThreadLocal<Map<Charset, CharsetDecoder>> decoders = new ThreadLocal<Map<Charset, CharsetDecoder>>() {
        @Override/*  w ww .  ja va2s .c  o  m*/
        protected Map<Charset, CharsetDecoder> initialValue() {
            return new IdentityHashMap<Charset, CharsetDecoder>();
        }
    };

    /**
     * Returns a cached thread-local {@link CharsetDecoder} for the specified
     * <tt>charset</tt>.
     */
    public static CharsetDecoder getDecoder(Charset charset) {
        if (charset == null) {
            throw new NullPointerException("charset");
        }

        Map<Charset, CharsetDecoder> map = decoders.get();
        CharsetDecoder d = map.get(charset);
        if (d != null) {
            d.reset();
            d.onMalformedInput(CodingErrorAction.REPLACE);
            d.onUnmappableCharacter(CodingErrorAction.REPLACE);
            return d;
        }

        d = charset.newDecoder();
        d.onMalformedInput(CodingErrorAction.REPLACE);
        d.onUnmappableCharacter(CodingErrorAction.REPLACE);
        map.put(charset, d);
        return d;
    }
}

Related

1. decodeComponent(final String s, final Charset charset)
2. decodeFormFields(final String content, final Charset charset)
3. decodeURL(@Nullable String str, Charset charSet)
4. decodeWithDefaultCharSet(String urlToDecode)
5. getCharsetDecoder(String charsetName)
6. getDecoder(Charset charset)
7. getDecoder(String charset)
8. pooledCharBuffer(int len, CharsetDecoder decoder)
9. reportingDecoder(Charset cset)