| /** |
| * 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.camel.component.feed; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.impl.ScheduledPollConsumer; |
| |
| /** |
| * Base class for consuming feeds. |
| */ |
| public abstract class FeedPollingConsumer extends ScheduledPollConsumer { |
| public static final long DEFAULT_CONSUMER_DELAY = 60 * 1000L; |
| protected final FeedEndpoint endpoint; |
| |
| public FeedPollingConsumer(FeedEndpoint endpoint, Processor processor) { |
| super(endpoint, processor); |
| this.endpoint = endpoint; |
| } |
| |
| protected int poll() throws Exception { |
| Object feed = createFeed(); |
| if (feed != null) { |
| Exchange exchange = endpoint.createExchange(feed); |
| getProcessor().process(exchange); |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| protected abstract Object createFeed() throws Exception; |
| |
| } |