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