package org.cacert.gigi.pages;
import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.cacert.gigi.Language;
+import org.cacert.gigi.output.Template;
+
+/**
+ * This class encapsulates a sub page of Gigi. A template residing nearby this
+ * class with name <className>.templ will be loaded automatically.
+ */
public abstract class Page {
private String title;
+ private Template defaultTemplate;
public Page(String title) {
this.title = title;
+ try {
+ InputStream resource = getClass().getResourceAsStream(
+ getClass().getSimpleName() + ".templ");
+ if (resource != null) {
+ defaultTemplate = new Template(new InputStreamReader(resource,
+ "UTF-8"));
+ }
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ }
+
+ /**
+ * Retrives the default template (<className>.templ) which has already
+ * been loaded.
+ *
+ * @return the default template.
+ */
+ public Template getDefaultTemplate() {
+ return defaultTemplate;
}
- public abstract void doGet(ServletRequest req, ServletResponse resp)
+ /**
+ * This method can be overridden to execute code and do stuff before the
+ * default template is applied.
+ *
+ * @param req
+ * the request to handle.
+ * @param resp
+ * the response to write to
+ * @return true, iff the request is consumed and the default template should
+ * not be applied.
+ * @throws IOException
+ * if output goes wrong.
+ */
+ public boolean beforeTemplate(HttpServletRequest req,
+ HttpServletResponse resp) throws IOException {
+ return false;
+ }
+
+ /**
+ * This method is called to generate the content inside the default
+ * template.
+ *
+ * @param req
+ * the request to handle.
+ * @param resp
+ * the response to write to
+ * @throws IOException
+ * if output goes wrong.
+ */
+ public abstract void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException;
- public void doPost(ServletRequest req, ServletResponse resp)
+ /**
+ * Same as {@link #doGet(HttpServletRequest, HttpServletResponse)} but for
+ * POST requests. By default they are redirected to
+ * {@link #doGet(HttpServletRequest, HttpServletResponse)};
+ *
+ * @param req
+ * the request to handle.
+ * @param resp
+ * the response to write to
+ * @throws IOException
+ * if output goes wrong.
+ */
+ public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
doGet(req, resp);
}
+ /**
+ * Returns true, iff this page requires login. Default is <code>true</code>
+ *
+ * @return iff the page needs login.
+ */
+ public boolean needsLogin() {
+ return true;
+ }
+
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
+ public static Language getLanguage(ServletRequest req) {
+ return Language.getInstance("de");
+ }
+
+ public static String translate(ServletRequest req, String string) {
+ Language l = getLanguage(req);
+ return l.getTranslation(string);
+ }
+
}