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* 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 *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, *
* software distributed under the License is distributed on an *
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package org.apache.james.imap.main;
import java.io.IOException;
import org.apache.james.imap.api.ImapMessage;
import org.apache.james.imap.api.message.response.ImapResponseMessage;
import org.apache.james.imap.api.process.ImapProcessor;
import org.apache.james.imap.api.process.ImapSession;
import org.apache.james.imap.api.process.SelectedMailbox;
import org.apache.james.imap.api.process.ImapProcessor.Responder;
import org.apache.james.imap.decode.ImapDecoder;
import org.apache.james.imap.decode.ImapRequestLineReader;
import org.apache.james.imap.encode.ImapEncoder;
import org.apache.james.imap.encode.ImapResponseComposer;
import org.slf4j.Logger;
public abstract class AbstractImapRequestHandler {
protected static final byte[] ABANDON_SIGNOFF = { '*', ' ', 'B', 'Y', 'E', ' ', 'A', 'b', 'a', 'n', 'd', 'o', 'n', 'e', 'd', '\r', '\n' };
protected static final byte[] MAILBOX_DELETED_SIGNOFF = { '*', ' ', 'B', 'Y', 'E', ' ', 'S', 'e', 'l', 'e', 'c', 't', 'e', 'd', ' ', 'm', 'a', 'i', 'l', 'b', 'o', 'x', ' ', 'h', 'a', 's', ' ', 'b', 'e', 'e', 'n', ' ', 'd', 'e', 'l', 'e', 't', 'e', 'd', '\r', '\n' };
private final ImapDecoder decoder;
protected final ImapProcessor processor;
private final ImapEncoder encoder;
public AbstractImapRequestHandler(final ImapDecoder decoder, final ImapProcessor processor, final ImapEncoder encoder) {
this.decoder = decoder;
this.processor = processor;
this.encoder = encoder;
}
protected boolean doProcessRequest(ImapRequestLineReader request, ImapResponseComposer response, ImapSession session) {
ImapMessage message = decoder.decode(request, session);
final ResponseEncoder responseEncoder = new ResponseEncoder(encoder, response, session);
processor.process(message, responseEncoder, session);
final boolean result;
final IOException failure = responseEncoder.getFailure();
if (failure == null) {
result = true;
} else {
result = false;
final Logger logger = session.getLog();
logger.info(failure.getMessage());
if (logger.isDebugEnabled()) {
logger.debug("Failed to write " + message, failure);
}
}
return result;
}
protected boolean isSelectedMailboxDeleted(ImapSession session) {
final boolean selectedMailboxIsDeleted;
final SelectedMailbox mailbox = session.getSelected();
if (mailbox != null) {
selectedMailboxIsDeleted = mailbox.isDeletedByOtherSession();
} else {
selectedMailboxIsDeleted = false;
}
return selectedMailboxIsDeleted;
}
/**
* Silents swallows all responses.
*/
static final class SilentResponder implements Responder {
public void respond(ImapResponseMessage message) {
// Swallow
}
}
}