Grosse MàJ

P51/apache-tomcat-6.0.14/webapps/examples/WEB-INF/classes/validators/DebugValidator.java

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+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+
+package validators;
+
+
+import java.io.InputStream;
+import java.io.IOException;
+import javax.servlet.jsp.tagext.PageData;
+import javax.servlet.jsp.tagext.TagLibraryValidator;
+import javax.servlet.jsp.tagext.ValidationMessage;
+
+
+/**
+ * Example tag library validator that simply dumps the XML version of each
+ * page to standard output (which will typically be sent to the file
+ * <code>$CATALINA_HOME/logs/catalina.out</code>).  To utilize it, simply
+ * include a <code>taglib</code> directive for this tag library at the top
+ * of your JSP page.
+ *
+ * @author Craig McClanahan
+ * @version $Revision: 467217 $ $Date: 2006-10-24 05:14:34 +0200 (mar., 24 oct. 2006) $
+ */
+
+public class DebugValidator extends TagLibraryValidator {
+
+
+    // ----------------------------------------------------- Instance Variables
+
+
+    // --------------------------------------------------------- Public Methods
+
+
+    /**
+     * Validate a JSP page.  This will get invoked once per directive in the
+     * JSP page.  This method will return <code>null</code> if the page is
+     * valid; otherwise the method should return an array of
+     * <code>ValidationMessage</code> objects.  An array of length zero is
+     * also interpreted as no errors.
+     *
+     * @param prefix The value of the prefix argument in this directive
+     * @param uri The value of the URI argument in this directive
+     * @param page The page data for this page
+     */
+    public ValidationMessage[] validate(String prefix, String uri,
+                                        PageData page) {
+
+        System.out.println("---------- Prefix=" + prefix + " URI=" + uri +
+                           "----------");
+
+        InputStream is = page.getInputStream();
+        while (true) {
+            try {
+                int ch = is.read();
+                if (ch < 0)
+                    break;
+                System.out.print((char) ch);
+            } catch (IOException e) {
+                break;
+            }
+        }
+        System.out.println();
+        System.out.println("-----------------------------------------------");
+        return (null);
+
+    }
+
+
+}