org.springframework.integration.ftp.outbound.FtpSendingMessageHandlerTests.java Source code

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Here is the source code for org.springframework.integration.ftp.outbound.FtpSendingMessageHandlerTests.java

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/*
 * Copyright 2002-2012 the original author or authors.
 *
 * 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 org.springframework.integration.ftp.outbound;

import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.springframework.expression.common.LiteralExpression;
import org.springframework.integration.Message;
import org.springframework.integration.file.FileNameGenerator;
import org.springframework.integration.file.remote.handler.FileTransferringMessageHandler;
import org.springframework.integration.ftp.session.AbstractFtpSessionFactory;
import org.springframework.integration.message.GenericMessage;
import org.springframework.util.FileCopyUtils;

/**
 * @author Oleg Zhurakousky
 */
public class FtpSendingMessageHandlerTests {

    private static FTPClient ftpClient;
    private TestFtpSessionFactory sessionFactory;

    @Before
    public void prepare() {
        ftpClient = mock(FTPClient.class);
        sessionFactory = new TestFtpSessionFactory();
        sessionFactory.setUsername("kermit");
        sessionFactory.setPassword("frog");
        sessionFactory.setHost("foo.com");
        //sessionFactory.setRemoteWorkingDirectory("remote-test-dir");
    }

    @Test
    public void testHandleFileContentMessage() throws Exception {
        File file = new File("remote-target-dir/handlerContent.test");
        if (file.exists()) {
            file.delete();
        }
        assertFalse(file.exists());
        FileTransferringMessageHandler<FTPFile> handler = new FileTransferringMessageHandler<FTPFile>(
                sessionFactory);
        handler.setRemoteDirectoryExpression(new LiteralExpression("remote-target-dir"));
        handler.setFileNameGenerator(new FileNameGenerator() {
            public String generateFileName(Message<?> message) {
                return "handlerContent.test";
            }
        });
        handler.afterPropertiesSet();
        handler.handleMessage(new GenericMessage<String>("hello"));
        assertTrue(file.exists());
    }

    @Test
    public void testHandleFileAsByte() throws Exception {
        File file = new File("remote-target-dir/handlerContent.test");
        if (file.exists()) {
            file.delete();
        }
        assertFalse(file.exists());
        FileTransferringMessageHandler<FTPFile> handler = new FileTransferringMessageHandler<FTPFile>(
                sessionFactory);
        handler.setRemoteDirectoryExpression(new LiteralExpression("remote-target-dir"));
        handler.setFileNameGenerator(new FileNameGenerator() {
            public String generateFileName(Message<?> message) {
                return "handlerContent.test";
            }
        });
        handler.afterPropertiesSet();
        handler.handleMessage(new GenericMessage<byte[]>("hello".getBytes()));
        assertTrue(file.exists());
    }

    @Test
    public void testHandleFileMessage() throws Exception {
        File targetDir = new File("remote-target-dir");
        assertTrue("target directory does not exist: " + targetDir.getName(), targetDir.exists());

        FileTransferringMessageHandler<FTPFile> handler = new FileTransferringMessageHandler<FTPFile>(
                sessionFactory);
        handler.setRemoteDirectoryExpression(new LiteralExpression(targetDir.getName()));
        handler.setFileNameGenerator(new FileNameGenerator() {
            public String generateFileName(Message<?> message) {
                return ((File) message.getPayload()).getName() + ".test";
            }
        });
        handler.afterPropertiesSet();

        File srcFile = File.createTempFile("testHandleFileMessage", ".tmp");
        srcFile.deleteOnExit();

        File destFile = new File(targetDir, srcFile.getName() + ".test");
        destFile.deleteOnExit();

        handler.handleMessage(new GenericMessage<File>(srcFile));
        assertTrue("destination file was not created", destFile.exists());
    }

    public static class TestFtpSessionFactory extends AbstractFtpSessionFactory<FTPClient> {

        @Override
        protected FTPClient createClientInstance() {
            try {
                when(ftpClient.getReplyCode()).thenReturn(250);
                when(ftpClient.login("kermit", "frog")).thenReturn(true);
                when(ftpClient.changeWorkingDirectory(Mockito.anyString())).thenReturn(true);
                when(ftpClient.printWorkingDirectory()).thenReturn("remote-target-dir");
                when(ftpClient.storeFile(Mockito.anyString(), Mockito.any(InputStream.class)))
                        .thenAnswer(new Answer<Boolean>() {
                            public Boolean answer(InvocationOnMock invocation) throws Throwable {
                                String fileName = (String) invocation.getArguments()[0];
                                InputStream fis = (InputStream) invocation.getArguments()[1];
                                FileCopyUtils.copy(fis, new FileOutputStream(fileName));
                                return true;
                            }
                        });
                when(ftpClient.rename(Mockito.anyString(), Mockito.anyString())).thenAnswer(new Answer<Boolean>() {
                    public Boolean answer(InvocationOnMock invocation) throws Throwable {
                        File file = new File((String) invocation.getArguments()[0]);
                        File renameToFile = new File((String) invocation.getArguments()[1]);
                        file.renameTo(renameToFile);
                        return true;
                    }
                });
                return ftpClient;
            } catch (Exception e) {
                throw new RuntimeException("Failed to create mock client", e);
            }
        }
    }

}