Java 类org.apache.commons.fileupload.util.FileItemHeadersImpl 实例源码

/**
 * <p> Parses the <code>header-part</code> and returns as key/value
 * pairs.
 *
 * <p> If there are multiple headers of the same names, the name
 * will map to a comma-separated list containing the values.
 *
 * @param headerPart The <code>header-part</code> of the current
 *                   <code>encapsulation</code>.
 *
 * @return A <code>Map</code> containing the parsed HTTP request headers.
 */
protected FileItemHeaders getParsedHeaders(String headerPart) {
    final int len = headerPart.length();
    FileItemHeadersImpl headers = newFileItemHeaders();
    int start = 0;
    for (;;) {
        int end = parseEndOfLine(headerPart, start);
        if (start == end) {
            break;
        }
        StringBuilder header = new StringBuilder(headerPart.substring(start, end));
        start = end + 2;
        while (start < len) {
            int nonWs = start;
            while (nonWs < len) {
                char c = headerPart.charAt(nonWs);
                if (c != ' '  &&  c != '\t') {
                    break;
                }
                ++nonWs;
            }
            if (nonWs == start) {
                break;
            }
            // Continuation line found
            end = parseEndOfLine(headerPart, nonWs);
            header.append(" ").append(headerPart.substring(nonWs, end));
            start = end + 2;
        }
        parseHeaderLine(headers, header.toString());
    }
    return headers;
}

/**
 * Reads the next header line.
 * @param headers String with all headers.
 * @param header Map where to store the current header.
 */
private void parseHeaderLine(FileItemHeadersImpl headers, String header) {
    final int colonOffset = header.indexOf(':');
    if (colonOffset == -1) {
        // This header line is malformed, skip it.
        return;
    }
    String headerName = header.substring(0, colonOffset).trim();
    String headerValue =
        header.substring(header.indexOf(':') + 1).trim();
    headers.addHeader(headerName, headerValue);
}

/**
 * <p> Parses the <code>header-part</code> and returns as key/value
 * pairs.
 *
 * <p> If there are multiple headers of the same names, the name
 * will map to a comma-separated list containing the values.
 *
 * @param headerPart The <code>header-part</code> of the current
 *                   <code>encapsulation</code>.
 *
 * @return A <code>Map</code> containing the parsed HTTP request headers.
 */
protected FileItemHeaders getParsedHeaders(String headerPart) {
    final int len = headerPart.length();
    FileItemHeadersImpl headers = newFileItemHeaders();
    int start = 0;
    for (;;) {
        int end = parseEndOfLine(headerPart, start);
        if (start == end) {
            break;
        }
        StringBuilder header = new StringBuilder(headerPart.substring(start, end));
        start = end + 2;
        while (start < len) {
            int nonWs = start;
            while (nonWs < len) {
                char c = headerPart.charAt(nonWs);
                if (c != ' '  &&  c != '\t') {
                    break;
                }
                ++nonWs;
            }
            if (nonWs == start) {
                break;
            }
            // Continuation line found
            end = parseEndOfLine(headerPart, nonWs);
            header.append(" ").append(headerPart.substring(nonWs, end));
            start = end + 2;
        }
        parseHeaderLine(headers, header.toString());
    }
    return headers;
}

/**
 * Reads the next header line.
 * @param headers String with all headers.
 * @param header Map where to store the current header.
 */
private void parseHeaderLine(FileItemHeadersImpl headers, String header) {
    final int colonOffset = header.indexOf(':');
    if (colonOffset == -1) {
        // This header line is malformed, skip it.
        return;
    }
    String headerName = header.substring(0, colonOffset).trim();
    String headerValue =
        header.substring(header.indexOf(':') + 1).trim();
    headers.addHeader(headerName, headerValue);
}

/**
 * <p> Parses the <code>header-part</code> and returns as key/value
 * pairs.
 *
 * <p> If there are multiple headers of the same names, the name
 * will map to a comma-separated list containing the values.
 *
 * @param headerPart The <code>header-part</code> of the current
 *                   <code>encapsulation</code>.
 *
 * @return A <code>Map</code> containing the parsed HTTP request headers.
 */
protected FileItemHeaders getParsedHeaders(String headerPart) {
    final int len = headerPart.length();
    FileItemHeadersImpl headers = newFileItemHeaders();
    int start = 0;
    for (;;) {
        int end = parseEndOfLine(headerPart, start);
        if (start == end) {
            break;
        }
        StringBuilder header = new StringBuilder(headerPart.substring(start, end));
        start = end + 2;
        while (start < len) {
            int nonWs = start;
            while (nonWs < len) {
                char c = headerPart.charAt(nonWs);
                if (c != ' '  &&  c != '\t') {
                    break;
                }
                ++nonWs;
            }
            if (nonWs == start) {
                break;
            }
            // Continuation line found
            end = parseEndOfLine(headerPart, nonWs);
            header.append(" ").append(headerPart.substring(nonWs, end));
            start = end + 2;
        }
        parseHeaderLine(headers, header.toString());
    }
    return headers;
}

/**
 * Reads the next header line.
 * @param headers String with all headers.
 * @param header Map where to store the current header.
 */
private void parseHeaderLine(FileItemHeadersImpl headers, String header) {
    final int colonOffset = header.indexOf(':');
    if (colonOffset == -1) {
        // This header line is malformed, skip it.
        return;
    }
    String headerName = header.substring(0, colonOffset).trim();
    String headerValue =
        header.substring(header.indexOf(':') + 1).trim();
    headers.addHeader(headerName, headerValue);
}

/**
 * Creates a new instance of {@link FileItemHeaders}.
 * @return The new instance.
 */
protected FileItemHeadersImpl newFileItemHeaders() {
    return new FileItemHeadersImpl();
}

/**
 * Creates a new instance of {@link FileItemHeaders}.
 * @return The new instance.
 */
protected FileItemHeadersImpl newFileItemHeaders() {
    return new FileItemHeadersImpl();
}

/**
 * Creates a new instance of {@link FileItemHeaders}.
 * @return The new instance.
 */
protected FileItemHeadersImpl newFileItemHeaders() {
    return new FileItemHeadersImpl();
}