Package org.elasticsearch.common.io

Examples of org.elasticsearch.common.io.UTF8StreamWriter

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    private static ThreadLocal<SoftReference<UTF8StreamWriter>> utf8StreamWriter = new ThreadLocal<SoftReference<UTF8StreamWriter>>();

    public static UTF8StreamWriter utf8StreamWriter() {
        SoftReference<UTF8StreamWriter> ref = utf8StreamWriter.get();
        UTF8StreamWriter writer = (ref == null) ? null : ref.get();
        if (writer == null) {
            writer = new UTF8StreamWriter(1024 * 4);
            utf8StreamWriter.set(new SoftReference<UTF8StreamWriter>(writer));
        }
        writer.reset();
        return writer;
    }
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        boolean helpWanted = request.paramAsBoolean("help", false);
        if (helpWanted) {
            Table table = getTableWithHeader(request);
            int[] width = buildHelpWidths(table, request);
            BytesStreamOutput bytesOutput = channel.bytesOutput();
            UTF8StreamWriter out = new UTF8StreamWriter().setOutput(bytesOutput);
            for (Table.Cell cell : table.getHeaders()) {
                // need to do left-align always, so create new cells
                pad(new Table.Cell(cell.value), width[0], request, out);
                out.append(" | ");
                pad(new Table.Cell(cell.attr.containsKey("alias") ? cell.attr.get("alias") : ""), width[1], request, out);
                out.append(" | ");
                pad(new Table.Cell(cell.attr.containsKey("desc") ? cell.attr.get("desc") : "not available"), width[2], request, out);
                out.append("\n");
            }
            out.close();
            channel.sendResponse(new BytesRestResponse(RestStatus.OK, BytesRestResponse.TEXT_CONTENT_TYPE, bytesOutput.bytes(), true));
        } else {
            doRequest(request, channel, client);
        }
    }
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        List<DisplayHeader> headers = buildDisplayHeaders(table, request);
        int[] width = buildWidths(table, request, verbose, headers);

        BytesStreamOutput bytesOut = channel.bytesOutput();
        UTF8StreamWriter out = new UTF8StreamWriter().setOutput(bytesOut);
        if (verbose) {
            for (int col = 0; col < headers.size(); col++) {
                DisplayHeader header = headers.get(col);
                pad(new Table.Cell(header.display, table.findHeaderByName(header.name)), width[col], request, out);
                out.append(" ");
            }
            out.append("\n");
        }

        for (int row = 0; row < table.getRows().size(); row++) {
            for (int col = 0; col < headers.size(); col++) {
                DisplayHeader header = headers.get(col);
                pad(table.getAsMap().get(header.name).get(row), width[col], request, out);
                out.append(" ");
            }
            out.append("\n");
        }
        out.close();
        return new BytesRestResponse(RestStatus.OK, BytesRestResponse.TEXT_CONTENT_TYPE, bytesOut.bytes(), true);
    }
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    private static ThreadLocal<SoftReference<UTF8StreamWriter>> utf8StreamWriter = new ThreadLocal<>();

    /** If exists, reset and return, otherwise create, reset and return a writer.*/
    private static UTF8StreamWriter utf8StreamWriter() {
        SoftReference<UTF8StreamWriter> ref = utf8StreamWriter.get();
        UTF8StreamWriter writer = (ref == null) ? null : ref.get();
        if (writer == null) {
            writer = new UTF8StreamWriter(1024 * 4);
            utf8StreamWriter.set(new SoftReference<>(writer));
        }
        writer.reset();
        return writer;
    }
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     *
     * @return the processed string with all given variables substitued.
     * */
    public Object execute(Object template, Map<String, Object> vars) {
        BytesStreamOutput result = new BytesStreamOutput();
        UTF8StreamWriter writer = utf8StreamWriter().setOutput(result);
        ((Mustache) template).execute(writer, vars);
        try {
            writer.flush();
        } catch (IOException e) {
            logger.error("Could not execute query template (failed to flush writer): ", e);
        } finally {
            try {
                writer.close();
            } catch (IOException e) {
                logger.error("Could not execute query template (failed to close writer): ", e);
            }
        }
        return result.bytes();
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        }

        @Override
        public Object run() {
            BytesStreamOutput result = new BytesStreamOutput();
            UTF8StreamWriter writer = utf8StreamWriter().setOutput(result);
            ((Mustache) mustache).execute(writer, vars);
            try {
                writer.flush();
            } catch (IOException e) {
                logger.error("Could not execute query template (failed to flush writer): ", e);
            } finally {
                try {
                    writer.close();
                } catch (IOException e) {
                    logger.error("Could not execute query template (failed to close writer): ", e);
                }
            }
            return result.bytes();
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