using freemarker to render index.html

scm-webapp/src/main/java/sonia/scm/template/TemplateServlet.java

@@ -0,0 +1,174 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.template;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import sonia.scm.SCMContextProvider;
+import sonia.scm.util.IOUtil;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.IOException;
+import java.io.Writer;
+
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+public class TemplateServlet extends HttpServlet
+{
+
+  /** Field description */
+  private static final long serialVersionUID = 3578555653924091546L;
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   *
+   * @param context
+   * @param templateHandler
+   */
+  @Inject
+  public TemplateServlet(SCMContextProvider context,
+                         TemplateHandler templateHandler)
+  {
+    this.templateHandler = templateHandler;
+    this.version = context.getVersion();
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   * @param response
+   *
+   * @throws IOException
+   * @throws ServletException
+   */
+  @Override
+  protected void doGet(HttpServletRequest request, HttpServletResponse response)
+          throws ServletException, IOException
+  {
+    Map<String, Object> params = new HashMap<String, Object>();
+    String contextPath = request.getContextPath();
+
+    params.put("contextPath", contextPath);
+    params.put("version", version);
+
+    Locale l = request.getLocale();
+
+    if (l == null)
+    {
+      l = Locale.ENGLISH;
+    }
+
+    String locale = l.toString();
+
+    params.put("locale", locale);
+
+    String shortLocale = locale;
+    int i = shortLocale.indexOf("_");
+
+    if (i > 0)
+    {
+      shortLocale = shortLocale.substring(0, i);
+    }
+
+    params.put("shortLocale", shortLocale);
+
+    String templateName = getTemplateName(contextPath, request.getRequestURI());
+    Writer writer = null;
+
+    try
+    {
+      writer = response.getWriter();
+      templateHandler.render(templateName, writer, params);
+    }
+    finally
+    {
+      IOUtil.close(writer);
+    }
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param contextPath
+   * @param requestURI
+   *
+   * @return
+   */
+  private String getTemplateName(String contextPath, String requestURI)
+  {
+    String path = requestURI.substring(contextPath.length());
+
+    if (path.endsWith("/"))
+    {
+      path = path.concat("index.html");
+    }
+
+    return path;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private TemplateHandler templateHandler;
+
+  /** Field description */
+  private String version;
+}