Example usage for io.netty.util CharsetUtil encoder

Introduction

In this page you can find the example usage for io.netty.util CharsetUtil encoder.

Prototype

public static CharsetEncoder encoder(Charset charset) 

Source Link

Document

Returns a cached thread-local CharsetEncoder for the specified Charset .

Usage

From source file:com.lambdaworks.redis.codec.StringCodec.java

License:Apache License

public void encode(String str, ByteBuf target) {

    if (str == null) {
        return;/*from w  w  w .j a  va2  s .c  o m*/
    }

    if (utf8) {
        ByteBufUtil.writeUtf8(target, str);
        return;
    }

    if (ascii) {
        ByteBufUtil.writeAscii(target, str);
        return;
    }

    CharsetEncoder encoder = CharsetUtil.encoder(charset);
    int length = (int) ((double) str.length() * encoder.maxBytesPerChar());
    target.ensureWritable(length);
    try {
        final ByteBuffer dstBuf = target.nioBuffer(0, length);
        final int pos = dstBuf.position();
        CoderResult cr = encoder.encode(CharBuffer.wrap(str), dstBuf, true);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        cr = encoder.flush(dstBuf);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        target.writerIndex(target.writerIndex() + dstBuf.position() - pos);
    } catch (CharacterCodingException x) {
        throw new IllegalStateException(x);
    }
}

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From source file:com.lambdaworks.redis.codec.StringCodec.java

License:Apache License

@Override
public int estimateSize(Object keyOrValue) {

    if (keyOrValue instanceof String) {
        CharsetEncoder encoder = CharsetUtil.encoder(charset);
        return (int) (encoder.averageBytesPerChar() * ((String) keyOrValue).length());
    }//from   w  ww .j  a  v  a 2  s .c o  m
    return 0;
}

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From source file:com.lambdaworks.redis.codec.StringCodec.java

License:Apache License

/**
 * Compatibility implementation./* w  ww. jav a2 s .  com*/
 * 
 * @param key
 * @return
 */
private ByteBuffer encodeAndAllocateBuffer(String key) {
    if (key == null) {
        return ByteBuffer.wrap(EMPTY);
    }

    CharsetEncoder encoder = CharsetUtil.encoder(charset);
    ByteBuffer buffer = ByteBuffer.allocate((int) (encoder.maxBytesPerChar() * key.length()));

    ByteBuf byteBuf = Unpooled.wrappedBuffer(buffer);
    byteBuf.clear();
    encode(key, byteBuf);
    buffer.limit(byteBuf.writerIndex());

    return buffer;
}

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From source file:ratpack.groovy.template.internal.MarkupTemplateRenderer.java

License:Apache License

@Override
public void render(Context ctx, MarkupTemplate template) throws Exception {
    String contentType = template.getContentType();
    contentType = contentType == null ? ctx.get(MimeTypes.class).getContentType(template.getName())
            : contentType;//from ww  w  .j  a va  2 s.c o m

    try {
        Template compiledTemplate = engine.createTemplateByPath(template.getName());
        Writable boundTemplate = compiledTemplate.make(template.getModel());

        ByteBuf byteBuf = byteBufAllocator.directBuffer();
        try {
            OutputStream outputStream = new ByteBufOutputStream(byteBuf);
            Writer writer = new OutputStreamWriter(outputStream, CharsetUtil.encoder(StandardCharsets.UTF_8));
            boundTemplate.writeTo(writer);
        } catch (Exception e) {
            byteBuf.release();
            throw e;
        }

        ctx.getResponse().send(contentType, byteBuf);
    } catch (IOException e) {
        ctx.error(e);
    }
}

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From source file:ratpack.groovy.template.Markup.java

License:Apache License

@Override
public void render(Context context) throws Exception {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    OutputStreamWriter writer = new OutputStreamWriter(out, CharsetUtil.encoder(getEncoding()));
    MarkupBuilder markupBuilder = new MarkupBuilder(writer);

    ClosureUtil.configureDelegateFirst(markupBuilder, markupBuilder, getDefinition());

    context.getResponse().contentType(getContentType()).send(out.toByteArray());
}

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