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| <path d="m -30.233189,292.45636 c 0,0 0.0052,-0.006 0.01127,-0.001 l 0,0 0,0 0,0 c 0,0 -0.0052,0.006 -0.01127,0.001 z" id="path3641" style="fill:#be202e" /> |
| <path d="m -30.233189,292.45636 c 0,0 0.0052,-0.006 0.01127,-0.001 l 0,0 0,0 0,0 c 0,0 -0.0052,0.006 -0.01127,0.001 z" id="path3643" style="opacity:0.35;fill:#be202e" /> |
| <path d="m -30.233189,292.45636 c 0,0 0.0052,-0.006 0.01127,-0.001 l 0,0 0,0 0,0 c 0,0 -0.0052,0.006 -0.01127,0.001 z" id="path3654" style="fill:url(#SVGID_10_)" /> |
| </g> |
| <text id="text3761" y="61.094482" x="290" style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:40px;line-height:125%;font-family:Oswald;text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" xml:space="preserve"> |
| <tspan y="61.094482" x="290" id="tspan3763">The</tspan> |
| </text> |
| <text id="text3416" y="72.094482" x="356" style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:57.5px;line-height:125%;font-family:Oswald;text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" xml:space="preserve"> |
| <tspan y="72.094482" x="356" id="tspan3418">Apache Velocity Project</tspan> |
| </text> |
| <path id="path3557" d="m 897.15,23.54449 0,1.58889 3.72099,0 0,10.51111 1.72469,0 0,-10.51111 3.74815,0 0,-1.58889 -9.19383,0 z m 21.49753,0 -4.15555,8.44691 -4.18272,-8.44691 -2.07778,0 0,12.1 1.58889,0 0,-9.60123 4.11482,8.32469 1.1,0 4.11481,-8.32469 0,9.60123 1.58889,0 0,-12.1 -2.09136,0 z" style="fill:#6d6e71" /> |
| <text id="text3599" y="114.09448" x="400" style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:35px;line-height:125%;font-family:Arial;text-align:start;letter-spacing:0.03em;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" xml:space="preserve"> |
| <tspan y="114.09448" x="400" id="tspan3601">http://velocity.apache.org/</tspan> |
| </text> |
| </svg> |
| </a> |
| |
| </div> |
| <div id="breadcrumb"> |
| <ul><li><a href="http://www.apache.org">apache</a></li><li><a href="/">velocity</a></li><li><a href="/tools/">tools</a></li><li><a href="/tools/3.0/">3.0</a></li><li><a href="/tools/3.0/contributions/">contributions</a></li><li><a href="#">FeedTool</a></li></ul> |
| </div> |
| <div id="middle"> |
| <div id="leftnav"> |
| |
| <style type="text/css"> |
| /* The following code is added by mdx_elementid.py |
| It was originally lifted from http://subversion.apache.org/style/site.css */ |
| /* |
| * Hide class="elementid-permalink", except when an enclosing heading |
| * has the :hover property. |
| */ |
| .headerlink, .elementid-permalink { |
| visibility: hidden; |
| } |
| h2:hover > .headerlink, h3:hover > .headerlink, h1:hover > .headerlink, h6:hover > .headerlink, h4:hover > .headerlink, h5:hover > .headerlink, dt:hover > .elementid-permalink { visibility: visible }</style> |
| <h2 id="velocity-tools">Velocity Tools<a class="headerlink" href="#velocity-tools" title="Permanent link">¶</a></h2> |
| <ul> |
| <li><a href="index.html">Overview</a></li> |
| <li><a href="/download.cgi#tools">Download</a></li> |
| </ul> |
| <h2 id="subprojects">Subprojects<a class="headerlink" href="#subprojects" title="Permanent link">¶</a></h2> |
| <ul> |
| <li><a href="generic.html">GenericTools</a></li> |
| <li><a href="view.html">VelocityView</a></li> |
| </ul> |
| <h2 id="docs">Docs<a class="headerlink" href="#docs" title="Permanent link">¶</a></h2> |
| <ul> |
| <li><a href="tools-summary.html">Standard Tools</a></li> |
| <li><a href="apidocs/index.html">Javadoc</a></li> |
| <li><a href="upgrading.html">Upgrading</a></li> |
| <li><a href="configuration.html">Configuration</a></li> |
| <li><a href="standalone.html">Standalone Use</a></li> |
| <li><a href="frameworks.html">Web Integration</a></li> |
| <li><a href="creating-tools.html">Creating Tools</a></li> |
| <li><a href="contributions.html">Contributions</a></li> |
| <li><a href="/engine/devel/glossary.html">Glossary</a></li> |
| <li><a href="http://wiki.apache.org/velocity/VelocityFAQ">FAQ</a></li> |
| <li><a href="http://wiki.apache.org/velocity/">Wiki</a></li> |
| </ul> |
| <h2 id="development">Development<a class="headerlink" href="#development" title="Permanent link">¶</a></h2> |
| <ul> |
| <li><a href="changes.html">Changes</a></li> |
| <li><a href="dependencies.html">Dependencies</a></li> |
| <li><a href="index.html#helping-out">Participating</a></li> |
| <li><a href="http://velocity.apache.org/tools/releases/2.0/index.html#Subversion_Repository">Source Code</a></li> |
| <li><a href="http://issues.apache.org/jira/browse/VELTOOLS">Report Issue</a></li> |
| </ul> |
| |
| <div id="bottom-nav"> |
| <img src="/images/pbv90x30.png"/> |
| <div id="rss"> |
| <a class="poweredBy" href="/rss/news.rss" title="Velocity News Feed"><img class="poweredBy" alt="Velocity News Feed" src="/images/feed-icon-24x24.jpg"></a> |
| </div> |
| <iframe src="http://www.apache.org/ads/buttonbar.html" style="border-width:0; float: left" frameborder="0" scrolling="no" width="135" height="265"></iframe> |
| </div> |
| </div> |
| <div id="content"><div class="section-content"><style type="text/css"> |
| /* The following code is added by mdx_elementid.py |
| It was originally lifted from http://subversion.apache.org/style/site.css */ |
| /* |
| * Hide class="elementid-permalink", except when an enclosing heading |
| * has the :hover property. |
| */ |
| .headerlink, .elementid-permalink { |
| visibility: hidden; |
| } |
| h2:hover > .headerlink, h3:hover > .headerlink, h1:hover > .headerlink, h6:hover > .headerlink, h4:hover > .headerlink, h5:hover > .headerlink, dt:hover > .elementid-permalink { visibility: visible }</style> |
| <h2 id="feedtool">FeedTool<a class="headerlink" href="#feedtool" title="Permanent link">¶</a></h2> |
| <p><a href="FeedTool.mdtext">FeedTool</a> is a tool providing the ability to retrieve and manipulate RSS and Atom feeds from within Velocity templates. It is built upon the <a href="https://rometools.github.io/rome/">Rome API</a>.</p> |
| <p>The tool works by retrieving a feed from a specified URI and returning it in a ContextFeedWrapper class. The idea with the wrapper class is to have a convenient location for the provision of convenience methods for feed and feed entry manipulation ... although it could easily be incorporated into a single class.</p> |
| <div class="toc"> |
| <ul> |
| <li><a href="#feedtool">FeedTool</a><ul> |
| <li><a href="#dependencies">Dependencies</a></li> |
| <li><a href="#code">Code</a><ul> |
| <li><a href="#feedtooljava">FeedTool.java</a></li> |
| <li><a href="#contextfeedwrapperjava">ContextFeedWrapper.java</a></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <h3 id="dependencies">Dependencies<a class="headerlink" href="#dependencies" title="Permanent link">¶</a></h3> |
| <ul> |
| <li> |
| <p><a href="https://rometools.github.io/rome/">Rome API</a></p> |
| <div class="codehilite"><pre><span class="nt"><dependency></span> |
| <span class="nt"><groupId></span>com.rometools<span class="nt"></groupId></span> |
| <span class="nt"><artifactId></span>rome<span class="nt"></artifactId></span> |
| <span class="nt"><version></span>1.10.0<span class="nt"></version></span> |
| <span class="nt"></dependency></span> |
| </pre></div> |
| |
| |
| </li> |
| <li> |
| <p><a href="https://rometools.github.io/rome/Fetcher/index.html">Rome Fetcher</a></p> |
| <div class="codehilite"><pre><span class="nt"><dependency></span> |
| <span class="nt"><groupId></span>com.rometools<span class="nt"></groupId></span> |
| <span class="nt"><artifactId></span>rome-fetcher<span class="nt"></artifactId></span> |
| <span class="nt"><version></span>1.10.0<span class="nt"></version></span> |
| <span class="nt"></dependency></span> |
| </pre></div> |
| |
| |
| </li> |
| <li> |
| <p><a href="http://www.jdom.org/">JDom2</a></p> |
| <div class="codehilite"><pre><span class="nt"><dependency></span> |
| <span class="nt"><groupId></span>org.jdom<span class="nt"></groupId></span> |
| <span class="nt"><artifactId></span>jdom2<span class="nt"></artifactId></span> |
| <span class="nt"><version></span>2.0.6<span class="nt"></version></span> |
| <span class="nt"></dependency></span> |
| </pre></div> |
| |
| |
| </li> |
| </ul> |
| <h3 id="code">Code<a class="headerlink" href="#code" title="Permanent link">¶</a></h3> |
| <h4 id="feedtooljava"><a href="http://svn.apache.org/repos/asf/velocity/contribs/tools/FeedTool/FeedTool.java">FeedTool.java</a><a class="headerlink" href="#feedtooljava" title="Permanent link">¶</a></h4> |
| <div class="codehilite"><pre><span class="kn">package</span> <span class="nn">org.apache.velocity.tools.view.tools</span><span class="o">;</span> |
| |
| <span class="kn">import</span> <span class="nn">java.net.URL</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">java.net.HttpURLConnection</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">java.io.IOException</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">java.net.MalformedURLException</span><span class="o">;</span> |
| |
| <span class="kn">import</span> <span class="nn">sun.misc.BASE64Encoder</span><span class="o">;</span> |
| |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.feed.synd.SyndFeed</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.io.SyndFeedInput</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.io.FeedException</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.io.XmlReader</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.fetcher.FeedFetcher</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.fetcher.FetcherException</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.fetcher.impl.FeedFetcherCache</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.fetcher.impl.HashMapFeedInfoCache</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.fetcher.impl.HttpURLFeedFetcher</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * FeedTool</span> |
| <span class="cm"> * <p></span> |
| <span class="cm"> * A Velocity View Tool for working with RSS and Atom APIs using Rome</span> |
| <span class="cm"> * </p></span> |
| <span class="cm"> * @author C.Townson</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kd">class</span> <span class="nc">FeedTool</span> |
| <span class="o">{</span> |
| <span class="cm">/**</span> |
| <span class="cm"> * The URL of the feed to be fetched by RomeFetcher</span> |
| <span class="cm"> */</span> |
| <span class="kd">private</span> <span class="n">URL</span> <span class="n">feedURL</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * The FeedObject returned from fetch by RomeFetcher</span> |
| <span class="cm"> */</span> |
| <span class="kd">private</span> <span class="n">ContextFeedWrapper</span> <span class="n">feed</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * Default view tool no-arg constructor</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="nf">FeedTool</span><span class="o">()</span> <span class="o">{</span> |
| <span class="c1">// do nothing - View Tools must have public no-arg constructor</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * Returns the feed located at the specified URL</span> |
| <span class="cm"> * <p></span> |
| <span class="cm"> * This is the core method provided with this tool - use this</span> |
| <span class="cm"> * from template, rather than any of the other public methods</span> |
| <span class="cm"> * </p></span> |
| <span class="cm"> * TODO overloaded method with authenication parameterss</span> |
| <span class="cm"> * @param feedURL the url of the feed to retrieve</span> |
| <span class="cm"> * @return feed The feed object inside a utility wrapper class</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">ContextFeedWrapper</span> <span class="nf">get</span><span class="o">(</span><span class="n">String</span> <span class="n">feedURL</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// cast String to URL</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeedURL</span><span class="o">(</span><span class="n">feedURL</span><span class="o">);</span> |
| |
| <span class="c1">// rev up RomeFetcher</span> |
| <span class="n">FeedFetcherCache</span> <span class="n">feedInfoCache</span> <span class="o">=</span> <span class="n">HashMapFeedInfoCache</span><span class="o">.</span><span class="na">getInstance</span><span class="o">();</span> |
| <span class="n">FeedFetcher</span> <span class="n">feedFetcher</span> <span class="o">=</span> <span class="k">new</span> <span class="n">HttpURLFeedFetcher</span><span class="o">(</span><span class="n">feedInfoCache</span><span class="o">);</span> |
| |
| <span class="c1">// retrieve feed or freak out (silently!)</span> |
| <span class="k">try</span> <span class="o">{</span> |
| <span class="c1">// grab feed</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeed</span><span class="o">(</span><span class="n">feedFetcher</span><span class="o">.</span><span class="na">retrieveFeed</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="na">getFeedURL</span><span class="o">()));</span> |
| <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">FetcherException</span> <span class="n">fetchx</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">FeedException</span> <span class="n">feedx</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">IOException</span> <span class="n">iox</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">Exception</span> <span class="n">x</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> |
| |
| <span class="c1">// return wrapped feed</span> |
| <span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="na">getFeed</span><span class="o">();</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * Returns the feed located at the specified (password protected) URL</span> |
| <span class="cm"> * @param feedURL the URL of the feed to retrieve</span> |
| <span class="cm"> * @param userName the userName to access the protected URL with</span> |
| <span class="cm"> * @param password the password to access the protected URL with</span> |
| <span class="cm"> * @return feed the feed object inside a utility wrapper class</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">ContextFeedWrapper</span> <span class="nf">get</span><span class="o">(</span><span class="n">String</span> <span class="n">feedURL</span><span class="o">,</span> <span class="n">String</span> <span class="n">userName</span><span class="o">,</span> <span class="n">String</span> <span class="n">password</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// set feed url</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeedURL</span><span class="o">(</span><span class="n">feedURL</span><span class="o">);</span> |
| |
| <span class="c1">// construct auth string</span> |
| <span class="n">String</span> <span class="n">auth</span> <span class="o">=</span> <span class="n">userName</span> <span class="o">+</span> <span class="s">":"</span> <span class="o">+</span> <span class="n">password</span><span class="o">;</span> |
| |
| <span class="c1">// initialize httpcon variable</span> |
| <span class="n">HttpURLConnection</span> <span class="n">httpcon</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span> |
| |
| <span class="k">try</span> <span class="o">{</span> |
| <span class="c1">// create connection</span> |
| <span class="n">httpcon</span> <span class="o">=</span> <span class="o">(</span><span class="n">HttpURLConnection</span><span class="o">)</span> <span class="k">this</span><span class="o">.</span><span class="na">getFeedURL</span><span class="o">().</span><span class="na">openConnection</span><span class="o">();</span> |
| |
| <span class="c1">// encode username:password</span> |
| <span class="n">String</span> <span class="n">encoding</span> <span class="o">=</span> <span class="k">new</span> <span class="n">BASE64Encoder</span><span class="o">().</span><span class="na">encode</span><span class="o">(</span><span class="n">auth</span><span class="o">.</span><span class="na">getBytes</span><span class="o">());</span> |
| |
| <span class="c1">// set request property</span> |
| <span class="n">httpcon</span><span class="o">.</span><span class="na">setRequestProperty</span><span class="o">(</span><span class="s">"Authorization"</span><span class="o">,</span><span class="s">"Basic "</span> <span class="o">+</span> <span class="n">encoding</span><span class="o">);</span> |
| |
| <span class="c1">// connect</span> |
| <span class="n">httpcon</span><span class="o">.</span><span class="na">connect</span><span class="o">();</span> |
| <span class="o">}</span> <span class="k">catch</span><span class="o">(</span><span class="n">IOException</span> <span class="n">iox</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> |
| |
| <span class="c1">// rev up Rome (not using fetcher this time)</span> |
| <span class="n">SyndFeedInput</span> <span class="n">input</span> <span class="o">=</span> <span class="k">new</span> <span class="n">SyndFeedInput</span><span class="o">();</span> |
| |
| <span class="c1">// grab and wrap feed</span> |
| <span class="k">try</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeed</span><span class="o">(</span><span class="n">input</span><span class="o">.</span><span class="na">build</span><span class="o">(</span><span class="k">new</span> <span class="n">XmlReader</span><span class="o">(</span><span class="n">httpcon</span><span class="o">)));</span> |
| <span class="o">}</span> <span class="k">catch</span><span class="o">(</span><span class="n">FeedException</span> <span class="n">fx</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> <span class="k">catch</span><span class="o">(</span><span class="n">IOException</span> <span class="n">iox</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> |
| |
| <span class="c1">// if we have a connection, disconnect now</span> |
| <span class="k">if</span><span class="o">(</span><span class="n">httpcon</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="o">{</span> |
| <span class="n">httpcon</span><span class="o">.</span><span class="na">disconnect</span><span class="o">();</span> |
| <span class="o">}</span> |
| |
| <span class="c1">// return wrapped feed</span> |
| <span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="na">getFeed</span><span class="o">();</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @return Returns the feed.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">ContextFeedWrapper</span> <span class="nf">getFeed</span><span class="o">()</span> <span class="o">{</span> |
| <span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="na">feed</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param feed The feed to set.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setFeed</span><span class="o">(</span><span class="n">ContextFeedWrapper</span> <span class="n">feed</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">feed</span> <span class="o">=</span> <span class="n">feed</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param feed The feed to set</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setFeed</span><span class="o">(</span><span class="n">SyndFeed</span> <span class="n">feed</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeed</span><span class="o">(</span><span class="k">new</span> <span class="n">ContextFeedWrapper</span><span class="o">(</span><span class="n">feed</span><span class="o">));</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @return Returns the feedURL.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">URL</span> <span class="nf">getFeedURL</span><span class="o">()</span> <span class="o">{</span> |
| <span class="k">return</span> <span class="n">feedURL</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param feedURL The feedURL to set.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setFeedURL</span><span class="o">(</span><span class="n">URL</span> <span class="n">feedURL</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">feedURL</span> <span class="o">=</span> <span class="n">feedURL</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * Private helper method to covert String to URL</span> |
| <span class="cm"> * @param url</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setFeedURL</span><span class="o">(</span><span class="n">String</span> <span class="n">url</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// try to cast URL string to URL</span> |
| <span class="k">try</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeedURL</span><span class="o">(</span><span class="k">new</span> <span class="n">URL</span><span class="o">(</span><span class="n">url</span><span class="o">));</span> |
| <span class="o">}</span> <span class="k">catch</span><span class="o">(</span><span class="n">MalformedURLException</span> <span class="n">mfux</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">Exception</span> <span class="n">x</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// do something here?</span> |
| <span class="o">}</span> |
| <span class="o">}</span> |
| <span class="o">}</span> |
| </pre></div> |
| |
| |
| <h4 id="contextfeedwrapperjava"><a href="http://svn.apache.org/repos/asf/velocity/contribs/tools/FeedTool/ContextFeedWrapper.java">ContextFeedWrapper.java</a><a class="headerlink" href="#contextfeedwrapperjava" title="Permanent link">¶</a></h4> |
| <div class="codehilite"><pre><span class="kn">package</span> <span class="nn">org.apache.velocity.tools.view.tools</span><span class="o">;</span> |
| |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.feed.synd.SyndFeed</span><span class="o">;</span> |
| <span class="kn">import</span> <span class="nn">com.rometools.rome.feed.synd.SyndEntry</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * Feed wrapper for Velocity context providing</span> |
| <span class="cm"> * utility methods for accessing feed object properties</span> |
| <span class="cm"> * </span> |
| <span class="cm"> * @author Christopher Townson</span> |
| <span class="cm"> *</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kd">class</span> <span class="nc">ContextFeedWrapper</span> <span class="o">{</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * The feed</span> |
| <span class="cm"> */</span> |
| <span class="kd">private</span> <span class="n">SyndFeed</span> <span class="n">feed</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * An interger containing the total number of items in the retrieved feed</span> |
| <span class="cm"> */</span> |
| <span class="kd">private</span> <span class="kt">int</span> <span class="n">numberOfEntries</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * A SyndEntry object for holding the most recent feed entry</span> |
| <span class="cm"> */</span> |
| <span class="kd">private</span> <span class="n">SyndEntry</span> <span class="n">latest</span><span class="o">;</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * </span> |
| <span class="cm"> * @param feed</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="nf">ContextFeedWrapper</span><span class="o">(</span><span class="n">SyndFeed</span> <span class="n">feed</span><span class="o">)</span> <span class="o">{</span> |
| <span class="c1">// assign feed object</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">setFeed</span><span class="o">(</span><span class="n">feed</span><span class="o">);</span> |
| |
| <span class="c1">// grab number of entries</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">numberOfEntries</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="na">getFeed</span><span class="o">().</span><span class="na">getEntries</span><span class="o">().</span><span class="na">size</span><span class="o">();</span> |
| |
| <span class="c1">// grab most recent entry (presently: just first entry)</span> |
| <span class="c1">// TODO make this loop through entries and compare dates</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">latest</span> <span class="o">=</span> <span class="o">(</span><span class="n">SyndEntry</span><span class="o">)</span> <span class="k">this</span><span class="o">.</span><span class="na">getFeed</span><span class="o">().</span><span class="na">getEntries</span><span class="o">().</span><span class="na">get</span><span class="o">(</span><span class="mi">0</span><span class="o">);</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @return Returns the feed.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">SyndFeed</span> <span class="nf">getFeed</span><span class="o">()</span> <span class="o">{</span> |
| <span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="na">feed</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param feed The feed to set.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setFeed</span><span class="o">(</span><span class="n">SyndFeed</span> <span class="n">feed</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">feed</span> <span class="o">=</span> <span class="n">feed</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @return Returns the numberOfEntries.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">int</span> <span class="nf">getNumberOfEntries</span><span class="o">()</span> <span class="o">{</span> |
| <span class="k">return</span> <span class="n">numberOfEntries</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param numberOfEntries The numberOfEntries to set.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setNumberOfEntries</span><span class="o">(</span><span class="kt">int</span> <span class="n">numberOfEntries</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">numberOfEntries</span> <span class="o">=</span> <span class="n">numberOfEntries</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @return Returns the latest feed entry.</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="n">SyndEntry</span> <span class="nf">getLatest</span><span class="o">()</span> <span class="o">{</span> |
| <span class="k">return</span> <span class="n">latest</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="cm">/**</span> |
| <span class="cm"> * @param latest The entry to set as the latest</span> |
| <span class="cm"> */</span> |
| <span class="kd">public</span> <span class="kt">void</span> <span class="nf">setLatest</span><span class="o">(</span><span class="n">SyndEntry</span> <span class="n">latest</span><span class="o">)</span> <span class="o">{</span> |
| <span class="k">this</span><span class="o">.</span><span class="na">latest</span> <span class="o">=</span> <span class="n">latest</span><span class="o">;</span> |
| <span class="o">}</span> |
| |
| <span class="o">}</span> |
| </pre></div></div></div> |
| <hr/> |
| <div id="copyright"> |
| Copyright © 2020 The Apache Software Foundation, Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.<br/>Apache and the Apache feather logo are trademarks of The Apache Software Foundation. |
| </div> |
| </div> |
| </div> |
| </body> |
| </html> |
