Author: sshafroi
Date: 2009-01-28 14:33:55 +0100 (Wed, 28 Jan 2009)
New Revision: 7178
Added:
branches/2.18/generic.sesam/velocity-directives/src/main/java/no/sesat/search/view/velocity/IDNDirective.java
Log:
Directive to convert a URL to an 'Internationalized Domain Name', this should
be used where you have a URL which you don't control. (could be a url like
r?\195?\184dsn?\195?\184.no, which needs encoding) It will only work if the URL
is accepted by java's URL class.
Added:
branches/2.18/generic.sesam/velocity-directives/src/main/java/no/sesat/search/view/velocity/IDNDirective.java
===================================================================
---
branches/2.18/generic.sesam/velocity-directives/src/main/java/no/sesat/search/view/velocity/IDNDirective.java
(rev 0)
+++
branches/2.18/generic.sesam/velocity-directives/src/main/java/no/sesat/search/view/velocity/IDNDirective.java
2009-01-28 13:33:55 UTC (rev 7178)
@@ -0,0 +1,82 @@
+/* Copyright (2009) Schibsted Søk AS
+ * This file is part of SESAT.
+ *
+ * SESAT is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * SESAT is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SESAT. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package no.sesat.search.view.velocity;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.net.MalformedURLException;
+import org.apache.log4j.Logger;
+import java.net.URL;
+
+import org.apache.velocity.context.InternalContextAdapter;
+import org.apache.velocity.exception.MethodInvocationException;
+import org.apache.velocity.exception.ParseErrorException;
+import org.apache.velocity.exception.ResourceNotFoundException;
+import org.apache.velocity.runtime.directive.Directive;
+import org.apache.velocity.runtime.parser.node.Node;
+
+/**
+ *
+ * A velocity directive to make domain name into IDN (Internationalized Domain
Names).
+ * It requires a complete URL to work, since we are passing it to java.net.URL.
+ *
+ */
+public final class IDNDirective extends Directive {
+
+ private static final Logger LOG = Logger.getLogger(IDNDirective.class);
+ private static final String NAME = "idn";
+
+ public String getName() {
+ return NAME;
+ }
+
+ @Override
+ public int getType() {
+ return LINE;
+ }
+
+ public boolean render(
+ final InternalContextAdapter context,
+ final Writer writer,
+ final Node node)
+ throws IOException, ResourceNotFoundException,
ParseErrorException, MethodInvocationException {
+
+ if (node.jjtGetNumChildren() < 1) {
+ rsvc.error("#" + getName() + " - missing argument");
+ } else {
+ final String url = null != node.jjtGetChild(0).value(context)
+ ? node.jjtGetChild(0).value(context).toString()
+ : "";
+
+ String host = null;
+ try {
+ host = new URL(url).getHost();
+ } catch (MalformedURLException ex) {
+ LOG.warn("Invalid url: " + url, ex);
+ }
+
+ if (host != null) {
+ writer.write(url.replace(host, java.net.IDN.toASCII(host)));
+ }
+ else {
+ writer.write(url);
+ }
+ }
+ return true;
+ }
+}
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