broker-core/src/main/java/org/apache/qpid/server/filter/ArrivalTimeFilterFactory.java

/*
 *
 * 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
 *
 *   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 org.apache.qpid.server.filter;

import java.util.List;

import org.apache.qpid.server.plugin.MessageFilterFactory;
import org.apache.qpid.server.plugin.PluggableService;

@PluggableService
public final class ArrivalTimeFilterFactory implements MessageFilterFactory
{

    @Override
    public MessageFilter newInstance(final List<String> arguments)
    {
        if(arguments == null || arguments.size() != 1)
        {
            throw new IllegalArgumentException(String.format("Cannot create a %s filter from these arguments: %s",
                                                             getType(), arguments));
        }
        final String periodArgument = arguments.get(0);
        try
        {
            long periodInSeconds = Long.parseLong(periodArgument);
            return new ArrivalTimeFilter(System.currentTimeMillis() - (periodInSeconds * 1000L), periodInSeconds == 0L);
        }
        catch (NumberFormatException e)
        {
            throw new IllegalArgumentException(String.format("Cannot create a %s filter.  Period value '%s' does not contain a parsable long value",
                                                             getType(), periodArgument), e);
        }
    }

    @Override
    public String getType()
    {
        return AMQPFilterTypes.REPLAY_PERIOD.toString();
    }

}