Package org.apache.camel.component.file

Source Code of org.apache.camel.component.file.FileConsumePollEnrichFileUsingProcessorTest

/**
* 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.file;

import org.apache.camel.CamelExchangeException;
import org.apache.camel.ConsumerTemplate;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.util.FileUtil;

/**
* @version $Revision: 802661 $
*/
public class FileConsumePollEnrichFileUsingProcessorTest extends ContextTestSupport {

    @Override
    protected void setUp() throws Exception {
        deleteDirectory("target/enrich");
        deleteDirectory("target/enrichdata");
        super.setUp();
    }

    public void testPollEnrich() throws Exception {
        getMockEndpoint("mock:start").expectedBodiesReceived("Start");

        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedBodiesReceived("Big file");

        mock.expectedFileExists("target/enrich/.done/AAA.fin");
        mock.expectedFileExists("target/enrichdata/.done/AAA.dat");
        mock.expectedFileExists("target/enrichdata/BBB.dat");

        template.sendBodyAndHeader("file://target/enrichdata", "Big file", Exchange.FILE_NAME, "AAA.dat");
        template.sendBodyAndHeader("file://target/enrichdata", "Other Big file", Exchange.FILE_NAME, "BBB.dat");
        template.sendBodyAndHeader("file://target/enrich", "Start", Exchange.FILE_NAME, "AAA.fin");

        assertMockEndpointsSatisfied();
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("file://target/enrich?move=.done")
                    .process(new Processor() {
                        public void process(Exchange exchange) throws Exception {
                            String name = exchange.getIn().getHeader(Exchange.FILE_NAME_ONLY, String.class);
                            name = FileUtil.stripExt(name) + ".dat";

                            // use a consumer template to get the data file
                            Exchange data = null;
                            ConsumerTemplate con = exchange.getContext().createConsumerTemplate();
                            try {
                                // try to get the data file
                                data = con.receive("file://target/enrichdata?move=.done&fileName=" + name, 5000);
                            } finally {
                                // stop the consumer as it does not need to poll for files anymore
                                con.stop();
                            }

                            // if we found the data file then process it by sending it to the direct:data endpoint
                            if (data != null) {
                                template.send("direct:data", data);
                            } else {
                                // otherwise do a rollback
                                throw new CamelExchangeException("Cannot find the data file " + name, exchange);
                            }
                        }
                    }).to("mock:start");

                from("direct:data")
                    .to("mock:result");
            }
        };
    }
}
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