RecipientInfoReader.java

/**
 * Copyright 2005-2014 Restlet
 * 
 * The contents of this file are subject to the terms of one of the following
 * open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
 * select the license that you prefer but you may not use this file except in
 * compliance with one of these Licenses.
 * 
 * You can obtain a copy of the Apache 2.0 license at
 * http://www.opensource.org/licenses/apache-2.0
 * 
 * You can obtain a copy of the EPL 1.0 license at
 * http://www.opensource.org/licenses/eclipse-1.0
 * 
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 * 
 * Alternatively, you can obtain a royalty free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * http://restlet.com/products/restlet-framework
 * 
 * Restlet is a registered trademark of Restlet S.A.S.
 */

package org.restlet.engine.header;

import java.io.IOException;
import java.util.Collection;

import org.restlet.data.Header;
import org.restlet.data.Protocol;
import org.restlet.data.RecipientInfo;

/**
 * Recipient info header reader.
 * 
 * @author Jerome Louvel
 */
public class RecipientInfoReader extends HeaderReader<RecipientInfo> {
    /**
     * Adds values to the given collection.
     * 
     * @param header
     *            The header to read.
     * @param collection
     *            The collection to update.
     */
    public static void addValues(Header header,
            Collection<RecipientInfo> collection) {
        new RecipientInfoReader(header.getValue()).addValues(collection);
    }

    /**
     * Constructor.
     * 
     * @param header
     *            The header to read.
     */
    public RecipientInfoReader(String header) {
        super(header);
    }

    @Override
    public RecipientInfo readValue() throws IOException {
        RecipientInfo result = new RecipientInfo();
        String protocolToken = readToken();

        if (protocolToken == null || "".equals(protocolToken)) {
            throw new IOException(
                    "Unexpected empty protocol token for while reading recipient info header, please check the value.");
        }

        if (peek() == '/') {
            read();
            result.setProtocol(new Protocol(protocolToken, protocolToken, null,
                    -1, readToken()));
        } else {
            result.setProtocol(new Protocol("HTTP", "HTTP", null, -1,
                    protocolToken));
        }

        // Move to the next text
        if (skipSpaces()) {
            result.setName(readRawText());

            // Move to the next text
            if (skipSpaces()) {
                result.setComment(readComment());
            }
        }

        return result;
    }
}