Example usage for org.springframework.core.io.buffer DataBuffer read

Introduction

In this page you can find the example usage for org.springframework.core.io.buffer DataBuffer read.

Prototype

DataBuffer read(byte[] destination);

Source Link

Document

Read this buffer's data into the specified destination, starting at the current reading position of this buffer.

Usage

From source file:org.springframework.http.codec.multipart.DefaultMultipartMessageReader.java

/**
 * Convert the given data buffer into a {@link HttpHeaders} instance. The given string is read
 * as US-ASCII, then split along \r\n line boundaries, each line containing a header name and
 * value(s)./*from www.ja v  a2s .c o  m*/
 */
private static HttpHeaders toHeaders(DataBuffer dataBuffer) {
    byte[] bytes = new byte[dataBuffer.readableByteCount()];
    dataBuffer.read(bytes);
    DataBufferUtils.release(dataBuffer);
    String string = new String(bytes, StandardCharsets.US_ASCII);
    String[] lines = string.split(HEADER_SEPARATOR);
    HttpHeaders result = new HttpHeaders();
    for (String line : lines) {
        int idx = line.indexOf(':');
        if (idx != -1) {
            String name = line.substring(0, idx);
            String value = line.substring(idx + 1);
            while (value.startsWith(" ")) {
                value = value.substring(1);
            }
            String[] tokens = StringUtils.tokenizeToStringArray(value, ",");
            for (String token : tokens) {
                result.add(name, token);
            }
        }
    }
    return result;
}

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