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/****************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one   *
 * or more contributor license agreements.  See the NOTICE file *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
 * with the License.  You may obtain a copy of the License at   *
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 * Unless required by applicable law or agreed to in writing,   *
 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
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package org.apache.james.imap.encode;

import java.io.IOException;
import java.util.Iterator;

import org.apache.james.imap.api.ImapConstants;
import org.apache.james.imap.api.message.Capability;
import org.apache.james.imap.message.response.CapabilityResponse;

/**
 * Encodes CAPABILITY response. See 7.2.1 of RFC2060.
 */
public class CapabilityResponseEncoder implements ImapResponseEncoder {
    @Override
    public Class acceptableMessages() {
        return CapabilityResponse.class;
    }

    @Override
    public void encode(CapabilityResponse response, ImapResponseComposer composer) throws IOException {
        Iterator capabilities = response.getCapabilities().iterator();
        composer.untagged();
        composer.message(ImapConstants.CAPABILITY_COMMAND.getNameAsBytes());
        while (capabilities.hasNext()) {
            composer.message(capabilities.next().asBytes());
        }
        composer.end();        
    }
}