| /** |
| * 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.remote; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.nio.channels.FileLock; |
| |
| 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.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Unit test to verify *NON* exclusive read. |
| */ |
| public class FromFtpExclusiveReadNoneStrategyTest extends FtpServerTestSupport { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(FromFtpExclusiveReadNoneStrategyTest.class); |
| |
| private String getFtpUrl() { |
| return "ftp://admin@localhost:" + getPort() + "/slowfile?password=admin" |
| + "&readLock=none&consumer.delay=500"; |
| } |
| |
| @Override |
| public boolean isUseRouteBuilder() { |
| return false; |
| } |
| |
| @Test |
| public void testPollFileWhileSlowFileIsBeingWrittenUsingNonExclusiveRead() throws Exception { |
| // cannot test on windows due file system works differently with file locks |
| if (isPlatform("windows")) { |
| return; |
| } |
| |
| context.addRoutes(new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| from("seda:start").process(new MySlowFileProcessor()); |
| from(getFtpUrl()).to("mock:result"); |
| } |
| }); |
| context.start(); |
| |
| deleteDirectory(FTP_ROOT_DIR); |
| createDirectory(FTP_ROOT_DIR + "slowfile"); |
| MockEndpoint mock = getMockEndpoint("mock:result"); |
| mock.expectedMessageCount(1); |
| |
| // send a message to seda:start to trigger the creating of the slowfile to poll |
| template.sendBody("seda:start", "Create the slow file"); |
| |
| mock.assertIsSatisfied(); |
| |
| // we read only part of the file as we dont have exclusive read and thus read part of the |
| // file currently in progress of being written - so we get only the Hello World part |
| String body = mock.getReceivedExchanges().get(0).getIn().getBody(String.class); |
| LOG.debug("Body is: " + body); |
| assertFalse("Should not wait and read the entire file", body.endsWith("Bye World")); |
| } |
| |
| private class MySlowFileProcessor implements Processor { |
| |
| public void process(Exchange exchange) throws Exception { |
| LOG.info("Creating a slow file ..."); |
| File file = new File(FTP_ROOT_DIR + "slowfile/hello.txt"); |
| FileOutputStream fos = new FileOutputStream(file); |
| FileLock lock = fos.getChannel().lock(); |
| fos.write("Hello World".getBytes()); |
| for (int i = 0; i < 3; i++) { |
| Thread.sleep(1000); |
| fos.write(("Line #" + i).getBytes()); |
| LOG.info("Appending to slowfile"); |
| } |
| fos.write("Bye World".getBytes()); |
| lock.release(); |
| fos.close(); |
| LOG.info("... done creating slowfile"); |
| } |
| } |
| } |