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| </style> |
| </head> |
| <body class="book"> |
| <div id="header"> |
| <h1>Virgo recipe for "Uploading Files"</h1> |
| </div> |
| <div id="content"> |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p><span class="image"><img src="http://www.eclipse.org/virgo/images/virgo-logo.png" alt="Virgo Homepage"></span></p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_acknowledgements">Acknowledgements</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This guide is inspired by <a href="https://spring.io/guides/gs/uploading-files/">"Getting Started - Uploading Files"</a> from the <a href="https://spring.io/">Spring</a> <a href="https://spring.io/guides">Guides</a>.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_multi_part_file_uploads">Multi-part file uploads</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>The original guide uses <a href="http://projects.spring.io/spring-boot/">Spring Boot</a> to bootstrap the demo application. This guide walks through the necessary |
| additional steps/configuration to get "Uploading Files" up and running on Virgo.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_shopping_list">Shopping list</h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><a href="https://www.eclipse.org/virgo/download/">Virgo Server</a></p> |
| </li> |
| <li> |
| <p><a href="http://wiki.eclipse.org/Virgo/Source#Virgo_git_Repositories">Sample Applications</a></p> |
| </li> |
| <li> |
| <p><a href="http://spring.io/tools/">Spring Tool Suite™</a></p> |
| </li> |
| </ul> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| Only Virgo Server for Apache Tomcat and Virgo Jetty Server are supported by the Virgo Tooling. |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_ingredients">Ingredients</h2> |
| <div class="sectionbody"> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><a href="https://spring.io/guides/gs/uploading-files/">Original "Getting Started - Uploading Files"</a></p> |
| </li> |
| <li> |
| <p>Spring configuration</p> |
| </li> |
| <li> |
| <p>Web application configuration</p> |
| </li> |
| <li> |
| <p>OSGi manifest</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_preparations">Preparations</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Install the Virgo server let’s say into <code>VIRGO_HOME</code>. Start your Spring Tool Suite™ and add the <a href="http://wiki.eclipse.org/Virgo/Tooling">Virgo Tooling</a> to your IDE.</p> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| For the impatient: This is the <a href="http://download.eclipse.org/virgo/release/tooling">update site</a> URL: <a href="http://download.eclipse.org/virgo/release/tooling" class="bare">http://download.eclipse.org/virgo/release/tooling</a>. |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>"Define a new server" within the IDE and choose the directory of the previously chosen Virgo installation <code>VIRGO_HOME</code>.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Clone the code from <a href="http://wiki.eclipse.org/Virgo/Source#Virgo_git_Repositories">Sample Applications</a> with Git.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre>git clone git://git.eclipse.org/gitroot/virgo/org.eclipse.virgo.samples.git</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Afterwards "Import (Existing Maven Projects)" living inside the folder <code>guide-uploading-files</code> into your IDE.</p> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| Before you can drag’n’drop the project onto your freshly created Virgo Server you have to Virgo → Add OSGi Project Bundle Nature (via a right click on the project) |
| within your IDE. |
| </td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_directions">Directions</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Virgo has no support for Springs <code>@EnableAutoConfiguration</code>. Thus you have to be explicit where Spring Boot configures the embedded Tomcat with reasonable defaults on your behalf. |
| Last but not least Virgo is an OSGi runtime and every bundle needs to be explicit about its needs in the <code>META-INF/MANIFEST.MF</code>.</p> |
| </div> |
| <div class="paragraph"> |
| <p>This is mostly about specifying necessary <code>Import-Package</code> and the <code>Web-ContextPath</code> the file upload application wants to be published.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-txt" data-lang="txt">Import-Bundle: org.springframework.beans, |
| org.springframework.context, |
| org.springframework.web, |
| org.springframework.web.servlet |
| Import-Package: org.eclipse.virgo.web.dm, |
| org.springframework.core.io;version="[3.1,4)", |
| org.springframework.stereotype;version="[3.1,4)", |
| org.springframework.util;version="[3.1,4)", |
| org.springframework.web.bind.annotation;version="[3.1,4)", |
| org.springframework.web.client;version="[3.1,4)", |
| org.springframework.web.multipart;version="[3.1,4)" |
| Web-ContextPath: /upload-guide[]</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>You can mix and match the Virgo specific header <code>Import-Bundle</code> and OSGi standard header <code>Import-Package</code> within the <code>MANIFEST.MF</code>. In the sample the fine-tuning of the |
| <code>MANIFEST.MF</code> is done within the Maven <code>pom.xml</code>.</p> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| If you intend to run your bundles in different OSGi containers you have to limit yourself to the OSGi standard headers. |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>Next step is to configuring the servlet container via <code>WEB-INF/web.xml</code>:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-xml" data-lang="xml"><?xml version="1.0" encoding="UTF-8"?> |
| <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
| xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> |
| |
| <!-- The definition of the Root Spring Container shared by all Servlets and Filters --> |
| <context-param> |
| <param-name>contextConfigLocation</param-name> |
| <param-value> |
| /WEB-INF/spring/root-context.xml |
| </param-value> |
| </context-param> |
| |
| <context-param> |
| <param-name>contextClass</param-name> |
| <param-value>org.eclipse.virgo.web.dm.ServerOsgiBundleXmlWebApplicationContext</param-value> |
| </context-param> |
| |
| <!-- Creates the Spring Container shared by all Servlets and Filters --> |
| <listener> |
| <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> |
| </listener> |
| |
| <!-- Processes application requests --> |
| <servlet> |
| <servlet-name>appServlet</servlet-name> |
| <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> |
| <init-param> |
| <param-name>contextConfigLocation</param-name> |
| <param-value> |
| /WEB-INF/spring/appServlet/servlet-context.xml |
| </param-value> |
| </init-param> |
| <load-on-startup>1</load-on-startup> |
| </servlet> |
| |
| <servlet-mapping> |
| <servlet-name>appServlet</servlet-name> |
| <url-pattern>/*</url-pattern> |
| </servlet-mapping> |
| |
| </web-app></code></pre> |
| </div> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| Most important the <code>contextClass</code> which is <strong>not</strong> the default from the Spring Framework, but <code>org.eclipse.virgo.web.dm.ServerOsgiBundleXmlWebApplicationContext</code>. |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-xml" data-lang="xml"><context-param> |
| <param-name>contextClass</param-name> |
| <param-value>org.eclipse.virgo.web.dm.ServerOsgiBundleXmlWebApplicationContext</param-value> |
| </context-param>[]</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Finally the Spring web application context. Nothing Virgo specific here:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-xml" data-lang="xml"><?xml version="1.0" encoding="UTF-8"?> |
| <beans:beans xmlns="http://www.springframework.org/schema/mvc" |
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" |
| xmlns:context="http://www.springframework.org/schema/context" |
| xmlns:util="http://www.springframework.org/schema/util" |
| xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd |
| http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd |
| http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd |
| http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"> |
| |
| <!-- Enables the Spring MVC @Controller programming model --> |
| <annotation-driven /> |
| |
| <context:component-scan base-package="org.eclipse.virgo.guides.uploading" /> |
| |
| <beans:bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> |
| <beans:property name="messageConverters"> |
| <util:list> |
| <beans:bean id="byteArrayMessageConverter" class="org.springframework.http.converter.ByteArrayHttpMessageConverter" /> |
| </util:list> |
| </beans:property> |
| </beans:bean> |
| |
| <!-- Configure the multipart resolver --> |
| <beans:bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> |
| <!-- one of the properties available; the maximum file size in bytes --> |
| <beans:property name="maxUploadSize" value="50000000" /> |
| </beans:bean> |
| |
| </beans:beans></code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_let_s_taste">Let’s taste</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>For easy client-side consumption of the file upload you can use the <code>FileUploader</code>.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">package org.eclipse.virgo.guides.uploading.internal; |
| |
| import java.io.FileNotFoundException; |
| |
| import org.springframework.core.io.FileSystemResource; |
| import org.springframework.util.LinkedMultiValueMap; |
| import org.springframework.util.MultiValueMap; |
| import org.springframework.web.client.RestTemplate; |
| |
| public class FileUploader { |
| |
| public static void main(String[] args) throws FileNotFoundException { |
| if (args.length == 0) { |
| System.out.println("Usage: Requires the name of a file to upload."); |
| System.exit(1); |
| } |
| |
| RestTemplate template = new RestTemplate(); |
| MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>(); |
| parts.add("name", args[0]); |
| parts.add("file", new FileSystemResource(args[0])); |
| String response = template.postForObject("http://localhost:8080/upload-guide/upload", |
| parts, String.class); |
| System.out.println(response); |
| } |
| }</code></pre> |
| </div> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| Please see the original guide <a href="https://spring.io/guides/gs/uploading-files/">"Getting Started - Uploading Files"</a> for more background information about this client. |
| </td> |
| </tr> |
| </table> |
| </div> |
| <div class="paragraph"> |
| <p>There is an easy way to use the <code>FileUploader</code> with Maven:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre>$ mvn package exec:java</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Or if you are more used to <code>curl</code> and the command line simply run the following command within the project’s directory.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre>$ curl -F "name=sample.txt" -F "file=@sample.txt" http://localhost:8080/upload-guide/upload</pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Either way you should see the following output independent of your choice:</p> |
| </div> |
| <div class="literalblock"> |
| <div class="content"> |
| <pre>You successfully uploaded sample.txt into sample.txt-uploaded !</pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div id="footer"> |
| <div id="footer-text"> |
| Last updated 2015-03-11 22:40:40 CET |
| </div> |
| </div> |
| </body> |
| </html> |
