VrfyHandler.java

/*
 * Licensed 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
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.ok2c.lightmtp.impl.protocol.cmd;

import java.util.List;

import com.ok2c.lightmtp.impl.protocol.ServerState;
import com.ok2c.lightmtp.protocol.Action;
import com.ok2c.lightmtp.protocol.CommandHandler;
import com.ok2c.lightmtp.protocol.EnvelopValidator;

public class VrfyHandler implements CommandHandler<ServerState> {

    private final EnvelopValidator validator;

    public VrfyHandler(final EnvelopValidator validator) {
        super();
        this.validator = validator;
    }

    @Override
    public Action<ServerState> handle(final String argument, final List<String> params) {
        String recipient = null;
        int fromIdx = argument.indexOf('<');
        if (fromIdx != -1) {
            int toIdx = argument.indexOf('>', fromIdx + 1);
            if (toIdx != -1) {
                recipient = argument.substring(fromIdx + 1, toIdx);
            }
        }
        if (recipient == null) {
            recipient = argument;
        }
        return new VrfyAction(recipient, this.validator);
    }

}