Examples with Writable groovy.lang.Writable used on opensource projects

Example 1 with Writable

use of groovy.lang.Writable in project groovy by apache.

the class XmlUtil method asString.

private static String asString(GPathResult node) {
    // little bit of hackery to avoid Groovy dependency in this file
    try {
        Object builder = ((Class) Class.forName("groovy.xml.StreamingMarkupBuilder")).newInstance();
        InvokerHelper.setProperty(builder, "encoding", "UTF-8");
        Writable w = (Writable) InvokerHelper.invokeMethod(builder, "bindNode", node);
        return "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + w.toString();
    } catch (Exception e) {
        return "Couldn't convert node to string because: " + e.getMessage();
    }
}

Example 2 with Writable

use of groovy.lang.Writable in project groovy by apache.

the class EncodingGroovyMethods method encodeHex.

/**
     * Produces a Writable that writes the hex encoding of the byte[]. Calling
     * toString() on this Writable returns the hex encoding as a String. The hex
     * encoding includes two characters for each byte and all letters are lower case.
     *
     * @param data byte array to be encoded
     * @return object which will write the hex encoding of the byte array
     * @see Integer#toHexString(int)
     */
public static Writable encodeHex(final byte[] data) {
    return new Writable() {

        public Writer writeTo(Writer out) throws IOException {
            for (int i = 0; i < data.length; i++) {
                // convert byte into unsigned hex string
                String hexString = Integer.toHexString(data[i] & 0xFF);
                // add leading zero if the length of the string is one
                if (hexString.length() < 2) {
                    out.write("0");
                }
                // write hex string to writer
                out.write(hexString);
            }
            return out;
        }

        public String toString() {
            StringWriter buffer = new StringWriter();
            try {
                writeTo(buffer);
            } catch (IOException e) {
                throw new StringWriterIOException(e);
            }
            return buffer.toString();
        }
    };
}

Example 3 with Writable

use of groovy.lang.Writable in project groovy by apache.

the class InvokerHelper method write.

/**
     * Writes an object to a Writer using Groovy's default representation for the object.
     */
public static void write(Writer out, Object object) throws IOException {
    if (object instanceof String) {
        out.write((String) object);
    } else if (object instanceof Object[]) {
        out.write(toArrayString((Object[]) object));
    } else if (object instanceof Map) {
        out.write(toMapString((Map) object));
    } else if (object instanceof Collection) {
        out.write(toListString((Collection) object));
    } else if (object instanceof Writable) {
        Writable writable = (Writable) object;
        writable.writeTo(out);
    } else if (object instanceof InputStream || object instanceof Reader) {
        // Copy stream to stream
        Reader reader;
        if (object instanceof InputStream) {
            reader = new InputStreamReader((InputStream) object);
        } else {
            reader = (Reader) object;
        }
        char[] chars = new char[8192];
        int i;
        while ((i = reader.read(chars)) != -1) {
            out.write(chars, 0, i);
        }
        reader.close();
    } else {
        out.write(toString(object));
    }
}

Example 4 with Writable

use of groovy.lang.Writable in project groovy by apache.

the class InvokerHelper method append.

/**
     * Appends an object to an Appendable using Groovy's default representation for the object.
     */
public static void append(Appendable out, Object object) throws IOException {
    if (object instanceof String) {
        out.append((String) object);
    } else if (object instanceof Object[]) {
        out.append(toArrayString((Object[]) object));
    } else if (object instanceof Map) {
        out.append(toMapString((Map) object));
    } else if (object instanceof Collection) {
        out.append(toListString((Collection) object));
    } else if (object instanceof Writable) {
        Writable writable = (Writable) object;
        StringWriter stringWriter = new StringWriter();
        writable.writeTo(stringWriter);
        out.append(stringWriter.toString());
    } else if (object instanceof InputStream || object instanceof Reader) {
        // Copy stream to stream
        Reader reader;
        if (object instanceof InputStream) {
            reader = new InputStreamReader((InputStream) object);
        } else {
            reader = (Reader) object;
        }
        char[] chars = new char[8192];
        int i;
        while ((i = reader.read(chars)) != -1) {
            for (int j = 0; j < i; j++) {
                out.append(chars[j]);
            }
        }
        reader.close();
    } else {
        out.append(toString(object));
    }
}

Example 5 with Writable

use of groovy.lang.Writable in project ratpack by ratpack.

the class MarkupTemplateRenderer method render.

@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;
    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);
    }
}