Package org.restlet.data

Examples of org.restlet.data.Parameter

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     * @throws IOException
     */
    public static Parameter createParameter(CharSequence name,
            CharSequence value) throws IOException {
        if (value != null) {
            return new Parameter(name.toString(), value.toString());
        } else {
            return new Parameter(name.toString(), null);
        }
    }
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     * @return The header read or null.
     * @throws IOException
     */
    public static Parameter readHeader(InputStream is, StringBuilder sb)
            throws IOException {
        Parameter result = null;

        // Detect the end of headers
        int next = is.read();
        if (HttpUtils.isCarriageReturn(next)) {
            next = is.read();
            if (!HttpUtils.isLineFeed(next)) {
                throw new IOException(
                        "Invalid end of headers. Line feed missing after the carriage return.");
            }
        } else {
            result = new Parameter();

            // Parse the header name
            while ((next != -1) && (next != ':')) {
                sb.append((char) next);
                next = is.read();
            }

            if (next == -1) {
                throw new IOException(
                        "Unable to parse the header name. End of stream reached too early.");
            } else {
                result.setName(sb.toString());
                sb.delete(0, sb.length());

                next = is.read();
                while (HttpUtils.isSpace(next)) {
                    // Skip any separator space between colon and header value
                    next = is.read();
                }

                // Parse the header value
                while ((next != -1) && (!HttpUtils.isCarriageReturn(next))) {
                    sb.append((char) next);
                    next = is.read();
                }

                if (next == -1) {
                    throw new IOException(
                            "Unable to parse the header value. End of stream reached too early.");
                } else {
                    next = is.read();

                    if (HttpUtils.isLineFeed(next)) {
                        result.setValue(sb.toString());
                        sb.delete(0, sb.length());
                    } else {
                        throw new IOException(
                                "Unable to parse the HTTP header value. The carriage return must be followed by a line feed.");
                    }
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     *
     * @return The next cookie available or null.
     */
    public Cookie readCookie() throws IOException {
        Cookie result = null;
        Parameter pair = readPair();

        if (this.globalVersion == -1) {
            // Cookies version not yet detected
            if (pair.getName().equalsIgnoreCase(NAME_VERSION)) {
                if (pair.getValue() != null) {
                    this.globalVersion = Integer.parseInt(pair.getValue());
                } else {
                    throw new IOException(
                            "Empty cookies version attribute detected. Please check your cookie header");
                }
            } else {
                // Set the default version for old Netscape cookies
                this.globalVersion = 0;
            }
        }

        while ((pair != null) && (pair.getName().charAt(0) == '$')) {
            // Unexpected special attribute
            // Silently ignore it as it may have been introduced by new
            // specifications
            pair = readPair();
        }

        if (pair != null) {
            // Set the cookie name and value
            result = new Cookie(this.globalVersion, pair.getName(), pair
                    .getValue());
            pair = readPair();
        }

        while ((pair != null) && (pair.getName().charAt(0) == '$')) {
            if (pair.getName().equalsIgnoreCase(NAME_PATH)) {
                result.setPath(pair.getValue());
            } else if (pair.getName().equalsIgnoreCase(NAME_DOMAIN)) {
                result.setDomain(pair.getValue());
            } else {
                // Unexpected special attribute
                // Silently ignore it as it may have been introduced by new
                // specifications
            }
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     *
     * @return The next cookie setting available or null.
     */
    public CookieSetting readCookieSetting() throws IOException {
        CookieSetting result = null;
        Parameter pair = readPair();

        while ((pair != null) && (pair.getName().charAt(0) == '$')) {
            // Unexpected special attribute
            // Silently ignore it as it may have been introduced by new
            // specifications
            pair = readPair();
        }

        if (pair != null) {
            // Set the cookie name and value
            result = new CookieSetting(pair.getName(), pair.getValue());
            pair = readPair();
        }

        while (pair != null) {
            if (pair.getName().equalsIgnoreCase(NAME_SET_PATH)) {
                result.setPath(pair.getValue());
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_DOMAIN)) {
                result.setDomain(pair.getValue());
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_COMMENT)) {
                result.setComment(pair.getValue());
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_COMMENT_URL)) {
                // No yet supported
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_DISCARD)) {
                result.setMaxAge(-1);
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_EXPIRES)) {
                Date current = new Date(System.currentTimeMillis());
                Date expires = DateUtils.parse(pair.getValue(),
                        DateUtils.FORMAT_RFC_1036);

                if (expires == null) {
                    expires = DateUtils.parse(pair.getValue(),
                            DateUtils.FORMAT_RFC_1123);
                }

                if (expires == null) {
                    expires = DateUtils.parse(pair.getValue(),
                            DateUtils.FORMAT_ASC_TIME);
                }

                if (expires != null) {
                    if (DateUtils.after(current, expires)) {
                        result.setMaxAge((int) ((expires.getTime() - current
                                .getTime()) / 1000));
                    } else {
                        result.setMaxAge(0);
                    }
                } else {
                    // Ignore the expires header
                    this.logger.log(Level.WARNING,
                            "Ignoring cookie setting expiration date. Unable to parse the date: "
                                    + pair.getValue());
                }
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_MAX_AGE)) {
                result.setMaxAge(Integer.valueOf(pair.getValue()));
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_PORT)) {
                // No yet supported
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_SECURE)) {
                if ((pair.getValue() == null)
                        || (pair.getValue().length() == 0)) {
                    result.setSecure(true);
                }
            } else if (pair.getName().equalsIgnoreCase(NAME_SET_VERSION)) {
                result.setVersion(Integer.valueOf(pair.getValue()));
            } else {
                // Unexpected special attribute
                // Silently ignore it as it may have been introduced by new
                // specifications
            }
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     *
     * @return The next pair as a parameter.
     * @throws IOException
     */
    private Parameter readPair() throws IOException {
        Parameter result = null;

        if (cachedPair != null) {
            result = cachedPair;
            cachedPair = null;
        } else {
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                    if (HttpUtils.isLineFeed(next)) {
                        setReasonPhrase(sb.toString());
                        sb.delete(0, sb.length());

                        // Parse the headers
                        Parameter header = HttpUtils.readHeader(
                                getResponseStream(), sb);
                        while (header != null) {
                            getResponseHeaders().add(header);
                            header = HttpUtils.readHeader(getResponseStream(),
                                    sb);
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     *            The parameter name to match.
     * @return The parameter value or list of values.
     */
    @SuppressWarnings("unchecked")
    public Object readParameter(String name) throws IOException {
        Parameter param = readNextParameter();
        Object result = null;

        while (param != null) {
            if (param.getName().equals(name)) {
                if (result != null) {
                    List<Object> values = null;

                    if (result instanceof List) {
                        // Multiple values already found for this parameter
                        values = (List) result;
                    } else {
                        // Second value found for this parameter
                        // Create a list of values
                        values = new ArrayList<Object>();
                        values.add(result);
                        result = values;
                    }

                    if (param.getValue() == null) {
                        values.add(Series.EMPTY_VALUE);
                    } else {
                        values.add(param.getValue());
                    }
                } else {
                    if (param.getValue() == null) {
                        result = Series.EMPTY_VALUE;
                    } else {
                        result = param.getValue();
                    }
                }
            }

            param = readNextParameter();
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     *            The parameter name to match.
     * @return The parameter value.
     * @throws IOException
     */
    public Parameter readFirstParameter(String name) throws IOException {
        Parameter param = readNextParameter();
        Parameter result = null;

        while ((param != null) && (result == null)) {
            if (param.getName().equals(name)) {
                result = param;
            }
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     *            The parameters map controlling the reading.
     */
    @SuppressWarnings("unchecked")
    public void readParameters(Map<String, Object> parameters)
            throws IOException {
        Parameter param = readNextParameter();
        Object currentValue = null;

        while (param != null) {
            if (parameters.containsKey(param.getName())) {
                currentValue = parameters.get(param.getName());

                if (currentValue != null) {
                    List<Object> values = null;

                    if (currentValue instanceof List) {
                        // Multiple values already found for this parameter
                        values = (List) currentValue;
                    } else {
                        // Second value found for this parameter
                        // Create a list of values
                        values = new ArrayList<Object>();
                        values.add(currentValue);
                        parameters.put(param.getName(), values);
                    }

                    if (param.getValue() == null) {
                        values.add(Series.EMPTY_VALUE);
                    } else {
                        values.add(param.getValue());
                    }
                } else {
                    if (param.getValue() == null) {
                        parameters.put(param.getName(), Series.EMPTY_VALUE);
                    } else {
                        parameters.put(param.getName(), param.getValue());
                    }
                }
            }

            param = readNextParameter();
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     * Reads the next parameter available or null.
     *
     * @return The next parameter available or null.
     */
    public Parameter readNextParameter() throws IOException {
        Parameter result = null;

        try {
            boolean readingName = true;
            boolean readingValue = false;
            StringBuilder nameBuffer = new StringBuilder();
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  • com.noelios.restlet.http.HttpServerCall
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  • com.noelios.restlet.http.PreferenceUtils
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