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From kin...@apache.org
Subject cvs commit: jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/servlet JspServletWrapper.java
Date Wed, 28 Aug 2002 23:00:20 GMT
kinman      2002/08/28 16:00:19

  Modified:    jasper2/src/share/org/apache/jasper/compiler Compiler.java
                        Generator.java JspDocumentParser.java PageInfo.java
                        Parser.java ParserController.java
                        TagFileProcessor.java TagLibraryInfoImpl.java
               jasper2/src/share/org/apache/jasper/runtime HttpJspBase.java
               jasper2/src/share/org/apache/jasper/servlet
                        JspServletWrapper.java
  Added:       jasper2/src/share/org/apache/jasper/runtime
                        JspSourceDependent.java
  Log:
  - Fixed 12046: reloading of tag files
  - Fixed 11485: recompilation of jsp files when TLD is modified.
  - The generate servlet and tag handlers for the tag files now implements
    JspSourceDependent, which is used to provide dependency info at runtime.
  - Turned on include file dependency check.  Added tag files and TLD to
    the dependency list.
  - Determined isTagFile property from TLD or implicit tag files.
  - Various minor fixes.
  
  Revision  Changes    Path
  1.31      +7 -25     jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Compiler.java
  
  Index: Compiler.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Compiler.java,v
  retrieving revision 1.30
  retrieving revision 1.31
  diff -u -r1.30 -r1.31
  --- Compiler.java	20 Aug 2002 23:35:30 -0000	1.30
  +++ Compiler.java	28 Aug 2002 23:00:18 -0000	1.31
  @@ -420,12 +420,13 @@
           if( checkClass ) {
               targetFile = new File(ctxt.getClassFileName());
           } else {
  -            targetFile = new File( ctxt.getServletJavaFileName());
  +            targetFile = new File(ctxt.getServletJavaFileName());
           }
           
           if (!targetFile.exists()) {
               return true;
           }
  +
           targetLastModified = targetFile.lastModified();
           if (targetLastModified < jspRealLastModified) {
               if( log.isDebugEnabled() )
  @@ -433,36 +434,18 @@
               return true;
           }
   
  -/* XXX turn off derived dependencies for now
  -        // determine if compile time includes have been changed
  +        // determine if source dependent files (e.g. includes using include
  +	// directives) have been changed.
           if( jsw==null ) {
               return false;
           }
  -        Servlet servlet=null;
  -        try {
  -            servlet = jsw.getServlet();
  -        } catch( ServletException ex1 ) {
  -        } catch( IOException ex2 ) {
  -        }
  -        if (servlet == null) {
  -            // System.out.println("Compiler: outdated, no servlet " + targetFile );
  -            return true;
  -        }
   
  -        List includes = null;
  -        // If the page contains a page directive with "extends" attribute
  -        // it may not be an instance of HttpJspBase.
  -        // For now only track dependencies on included files if this is not
  -        // the case.  A more complete solution is to generate the servlet
  -        // to implement (say) JspInlcudes which contains getIncludes method.
  -        if (servlet instanceof HttpJspBase) {
  -            includes = ((HttpJspBase)servlet).getIncludes();
  -        }
  -        if (includes == null) {
  +        List depends = jsw.getDependants();
  +        if (depends == null) {
               return false;
           }
   
  -        Iterator it = includes.iterator();
  +        Iterator it = depends.iterator();
           while (it.hasNext()) {
               String include = (String)it.next();
               try {
  @@ -481,7 +464,6 @@
                   return true;
               }
           }
  -*/
           return false;
   
       }
  
  
  
  1.83      +28 -23    jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Generator.java
  
  Index: Generator.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Generator.java,v
  retrieving revision 1.82
  retrieving revision 1.83
  diff -u -r1.82 -r1.83
  --- Generator.java	28 Aug 2002 17:57:12 -0000	1.82
  +++ Generator.java	28 Aug 2002 23:00:18 -0000	1.83
  @@ -170,7 +170,6 @@
   
   	out.println();
   	page.visit(new DeclarationVisitor());
  -	out.println();
       }
   
       /**
  @@ -360,25 +359,25 @@
   
       /**
        * Generation of static initializers in preamble.
  -     * For example, include list, el function map, prefix map.
  +     * For example, dependant list, el function map, prefix map.
        * (shared by servlet and tag handler preamble generation)
        */
       private void genPreambleStaticInitializers() 
           throws JasperException
       {
  -        // Static data for getIncludes()
  -        out.printil("private static java.util.Vector _jspx_includes;");
  +        // Static data for getDependants()
  +        out.printil("private static java.util.Vector _jspx_dependants;");
           out.println();
  -        List includes = pageInfo.getIncludes();
  -        Iterator iter = includes.iterator();
  -        if( !includes.isEmpty() ) {
  +        List dependants = pageInfo.getDependants();
  +        Iterator iter = dependants.iterator();
  +        if( !dependants.isEmpty() ) {
               out.printil("static {");
               out.pushIndent();
  -            out.printin("_jspx_includes = new java.util.Vector(");
  -            out.print(""+includes.size());
  +            out.printin("_jspx_dependants = new java.util.Vector(");
  +            out.print(""+dependants.size());
               out.println(");");
               while (iter.hasNext()) {
  -                out.printin("_jspx_includes.add(\"");
  +                out.printin("_jspx_dependants.add(\"");
                   out.print((String)iter.next());
                   out.println("\");");
               }
  @@ -423,10 +422,10 @@
       private void genPreambleMethods() 
           throws JasperException
       {
  -	// Method used to get compile time include file dependencies
  -        out.printil("public java.util.List getIncludes() {");
  +	// Method used to get compile time file dependencies
  +        out.printil("public java.util.List getDependants() {");
           out.pushIndent();
  -        out.printil("return _jspx_includes;");
  +        out.printil("return _jspx_dependants;");
           out.popIndent();
           out.printil("}");
           out.println();
  @@ -456,10 +455,12 @@
   	out.printin("public class ");
   	out.print  (servletClassName);
   	out.print  (" extends ");
  -	out.print  (pageInfo.getExtends());
  +	out.println(pageInfo.getExtends());
  +	out.printil("    implements javax.servlet.jsp.el.FunctionMapper, ");
  +	out.printin("               org.apache.jasper.runtime.JspSourceDependent");
   	if (!pageInfo.isThreadSafe()) {
  -	    out.print("implements SingleThreadModel, " +
  -                "javax.servlet.jsp.el.FunctionMapper");
  +	    out.println(",");
  +	    out.printin("                 SingleThreadModel");
   	}
   	out.println(" {");
   	out.pushIndent();
  @@ -628,6 +629,7 @@
           out.printil( "    prefix + \":\" + localName );" );
           out.popIndent();
           out.printil( "}" );
  +        out.println();
       }
   
   
  @@ -2892,10 +2894,13 @@
   	// Generate class declaration
   	out.printin("public class ");
   	out.print(tagInfo.getTagName());
  -	out.print(" extends javax.servlet.jsp.tagext.SimpleTagSupport");
  -	if (tagInfo.hasDynamicAttributes())
  -	    out.print(" implements javax.servlet.jsp.tagext.DynamicAttributes, " +
  -                "javax.servlet.jsp.el.FunctionMapper" );
  +	out.println(" extends javax.servlet.jsp.tagext.SimpleTagSupport");
  +	out.printil("    implements javax.servlet.jsp.el.FunctionMapper, ");
  +	out.printin("               org.apache.jasper.runtime.JspSourceDependent");
  +	if (tagInfo.hasDynamicAttributes()) {
  +	    out.println(",");
  +	    out.printin("                 javax.servlet.jsp.tagext.DynamicAttributes");
  +	}
   	out.println(" {");
   	out.println();
   	out.pushIndent();
  
  
  
  1.17      +4 -4      jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/JspDocumentParser.java
  
  Index: JspDocumentParser.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/JspDocumentParser.java,v
  retrieving revision 1.16
  retrieving revision 1.17
  diff -u -r1.16 -r1.17
  --- JspDocumentParser.java	24 Aug 2002 21:42:34 -0000	1.16
  +++ JspDocumentParser.java	28 Aug 2002 23:00:19 -0000	1.17
  @@ -223,7 +223,7 @@
   	    node = new Node.IncludeDirective(attrsCopy, start, current);
   	    String file = attrsCopy.getValue("file");
   	    try {
  -		parserController.parse(file, node);
  +		parserController.parse(file, node, false);
   	    } catch (FileNotFoundException fnfe) {
   		throw new SAXParseException(
                       err.getString("jsp.error.file.not.found", file),
  
  
  
  1.10      +10 -9     jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/PageInfo.java
  
  Index: PageInfo.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/PageInfo.java,v
  retrieving revision 1.9
  retrieving revision 1.10
  diff -u -r1.9 -r1.10
  --- PageInfo.java	21 Aug 2002 01:53:28 -0000	1.9
  +++ PageInfo.java	28 Aug 2002 23:00:19 -0000	1.10
  @@ -73,7 +73,7 @@
   class PageInfo {
   
       private Vector imports;
  -    private Vector includes;
  +    private Vector dependants;
   
       private BeanRepository beanRepository;
       private Hashtable tagLibraries;
  @@ -105,7 +105,7 @@
   	this.beanRepository = beanRepository;
   	this.tagLibraries = new Hashtable();
   	this.imports = new Vector();
  -        this.includes = new Vector();
  +        this.dependants = new Vector();
   	this.includePrelude = new Vector();
   	this.includeCoda = new Vector();
   
  @@ -122,12 +122,13 @@
   	return imports;
       }
   
  -    public void addInclude(String include) {
  -        this.includes.add(include);
  +    public void addDependant(String d) {
  +	if (!dependants.contains(d))
  +            dependants.add(d);
       }
        
  -    public List getIncludes() {
  -        return includes;
  +    public List getDependants() {
  +        return dependants;
       }
   
       public BeanRepository getBeanRepository() {
  
  
  
  1.26      +4 -4      jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Parser.java
  
  Index: Parser.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Parser.java,v
  retrieving revision 1.25
  retrieving revision 1.26
  diff -u -r1.25 -r1.26
  --- Parser.java	24 Aug 2002 21:42:34 -0000	1.25
  +++ Parser.java	28 Aug 2002 23:00:19 -0000	1.26
  @@ -330,7 +330,7 @@
   	}
   
   	try {
  -	    parserController.parse(file, parent);
  +	    parserController.parse(file, parent, false);
   	} catch (FileNotFoundException ex) {
   	    err.jspError(start, "jsp.error.file.not.found", file);
   	} catch (Exception ex) {
  
  
  
  1.16      +7 -11     jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/ParserController.java
  
  Index: ParserController.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/ParserController.java,v
  retrieving revision 1.15
  retrieving revision 1.16
  diff -u -r1.15 -r1.16
  --- ParserController.java	24 Aug 2002 00:48:22 -0000	1.15
  +++ ParserController.java	28 Aug 2002 23:00:19 -0000	1.16
  @@ -157,7 +157,7 @@
        */
       public Node.Nodes parse(String inFileName)
   	        throws FileNotFoundException, JasperException, IOException {
  -	return parse(inFileName, null);
  +	return parse(inFileName, null, false);
       }
   
       /**
  @@ -167,13 +167,17 @@
        * @param inFileName The name of the jsp file to be parsed.
        * @param parent The node for the 'include' directive.
        */
  -    public Node.Nodes parse(String inFileName, Node parent)
  +    public Node.Nodes parse(String inFileName, Node parent, boolean isTagFile)
   	        throws FileNotFoundException, JasperException, IOException {
   
  +	this.isTagFile = isTagFile;
   	Node.Nodes parsedPage = null;
   	String encoding = topFileEncoding;
           InputStreamReader reader = null;
   	String absFileName = resolveFileName(inFileName);
  +	if (isTagFile) {
  +	    isTopFile = true;
  +	}
   
   	JarFile jarFile = (JarFile) ctxt.getTagFileJars().get(inFileName);
   
  @@ -189,7 +193,7 @@
   		topFileEncoding = encoding;
   		isTopFile = false;
   	    } else {
  -                compiler.getPageInfo().addInclude(absFileName);
  +                compiler.getPageInfo().addDependant(absFileName);
               }
   	    try {
   		reader.close();
  @@ -237,15 +241,7 @@
   	 throws JasperException
       {
   	newEncoding = null;
  -
  -	// FIXME: Actually we should know that we are compiling a tag file
  -	// if we begin the compilation from either the tag file
  -	// element in a tld OR tagdir attribute in a tag directive.
  -        isTagFile = file.startsWith( "/WEB-INF/tags" ) ||
  -                    file.startsWith( "/META-INF/tags" );
  -
   	PageInfo pageInfo = compiler.getPageInfo();
  -
   	boolean isXmlFound = false;
   	if (pageInfo.isXmlSpecified()) {
   	    // If <is-xml> is specified in a <jsp-property-group>, it is used.
  
  
  
  1.19      +9 -5      jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/TagFileProcessor.java
  
  Index: TagFileProcessor.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/TagFileProcessor.java,v
  retrieving revision 1.18
  retrieving revision 1.19
  diff -u -r1.18 -r1.19
  --- TagFileProcessor.java	25 Aug 2002 23:49:49 -0000	1.18
  +++ TagFileProcessor.java	28 Aug 2002 23:00:19 -0000	1.19
  @@ -312,7 +312,7 @@
   
           Node.Nodes page = null;
   	try {
  -	    page = pc.parse(tagfile);
  +	    page = pc.parse(tagfile, null, true);
   	} catch (FileNotFoundException e) {
   	    pc.getCompiler().getErrorDispatcher().jspError(
                                           "jsp.error.file.not.found", tagfile);
  @@ -364,15 +364,18 @@
       static class TagFileLoaderVisitor extends Node.Visitor {
   
   	private JspCompilationContext ctxt;
  +	private PageInfo pageInfo;
   
  -	TagFileLoaderVisitor(JspCompilationContext ctxt) {
  +	TagFileLoaderVisitor(JspCompilationContext ctxt, PageInfo pageInfo) {
   	    this.ctxt = ctxt;
  +	    this.pageInfo = pageInfo;
   	}
   
           public void visit(Node.CustomTag n) throws JasperException {
   	    TagFileInfo tagFileInfo = n.getTagFileInfo();
   	    if (tagFileInfo != null) {
   		String tagFilePath = tagFileInfo.getPath();
  +		pageInfo.addDependant(tagFilePath);
   		Class c = loadTagFile(ctxt, tagFilePath, n.getTagInfo(),
   				      n.getTagData());
   		n.setTagHandlerClass(c);
  @@ -384,7 +387,8 @@
   		throws JasperException {
   
   	JspCompilationContext ctxt = compiler.getCompilationContext();
  -	page.visit(new TagFileLoaderVisitor(ctxt));
  +	PageInfo pageInfo = compiler.getPageInfo();
  +	page.visit(new TagFileLoaderVisitor(ctxt, pageInfo));
       }
   	
   }
  
  
  
  1.14      +8 -3      jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/TagLibraryInfoImpl.java
  
  Index: TagLibraryInfoImpl.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/TagLibraryInfoImpl.java,v
  retrieving revision 1.13
  retrieving revision 1.14
  diff -u -r1.13 -r1.14
  --- TagLibraryInfoImpl.java	25 Aug 2002 23:13:18 -0000	1.13
  +++ TagLibraryInfoImpl.java	28 Aug 2002 23:00:19 -0000	1.14
  @@ -193,6 +193,11 @@
   	    }
   	    // Now parse the tld.
   	    parseTLD(ctxt, location[0], in, null);
  +	    // Add the TLD to dependency list
  +	    PageInfo pageInfo = ctxt.createCompiler().getPageInfo();
  +	    if (pageInfo != null) {
  +		pageInfo.addDependant(location[0]);
  +	    }
   	} else {
   	    // Location points to a jar file
   	    // tag library in jar file
  
  
  
  1.4       +0 -10     jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/runtime/HttpJspBase.java
  
  Index: HttpJspBase.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/runtime/HttpJspBase.java,v
  retrieving revision 1.3
  retrieving revision 1.4
  diff -u -r1.3 -r1.4
  --- HttpJspBase.java	14 Jun 2002 20:45:55 -0000	1.3
  +++ HttpJspBase.java	28 Aug 2002 23:00:19 -0000	1.4
  @@ -142,16 +142,6 @@
       public void jspDestroy() {
       }
   
  -    /**
  -     * Get the list of compile time included files used
  -     * by the JSP file.
  -     *
  -     * Overridden by generated JSP java source files.
  -     *
  -     * @return List compile time includes
  -     */
  -    public abstract List getIncludes();
  -
       public abstract void _jspService(HttpServletRequest request, 
   				     HttpServletResponse response) 
   	throws ServletException, IOException;
  
  
  
  1.1                  jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/runtime/JspSourceDependent.java
  
  Index: JspSourceDependent.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  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. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:  
   *       "This product includes software developed by the 
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written 
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
   * ITS 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */ 
  
  package org.apache.jasper.runtime;
  
  /**
   * Interface for tracking the source files dependencies, for the purpose
   * of compiling out of date pages.  This is used for
   * 1) files that are included by pge directives
   * 2) Files that are included by include-prelude and include-coda in jsp:config
   * 3) Files that are tag files and referenced
   */
  
  public interface JspSourceDependent {
  
     /**
      * Returns a list of files names that the current page has a source
      * dependency on.
      */
      public java.util.List getDependants();
  
  }
  
  
  
  1.15      +29 -4     jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/servlet/JspServletWrapper.java
  
  Index: JspServletWrapper.java
  ===================================================================
  RCS file: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/servlet/JspServletWrapper.java,v
  retrieving revision 1.14
  retrieving revision 1.15
  diff -u -r1.14 -r1.15
  --- JspServletWrapper.java	21 Aug 2002 17:05:52 -0000	1.14
  +++ JspServletWrapper.java	28 Aug 2002 23:00:19 -0000	1.15
  @@ -83,7 +83,7 @@
   import org.apache.jasper.Options;
   import org.apache.jasper.JspCompilationContext;
   import org.apache.jasper.compiler.JspRuntimeContext;
  -import org.apache.jasper.runtime.HttpJspBase;
  +import org.apache.jasper.runtime.JspSourceDependent;
   import org.apache.jasper.logging.Logger;
   
   /**
  @@ -113,6 +113,7 @@
       private long available = 0L;
       private ServletConfig config;
       private Options options;
  +    private boolean isTagFile;
   
       /*
        * JspServletWrapper for JSP pages.
  @@ -121,6 +122,7 @@
                         boolean isErrorPage, JspRuntimeContext rctxt)
               throws JasperException {
   
  +	this.isTagFile = false;
           this.config = config;
           this.options = options;
           this.jspUri = jspUri;
  @@ -139,6 +141,7 @@
   			     Hashtable tagFileJars)
               throws JasperException {
   
  +	this.isTagFile = true;
           this.config = null;	// not used
           this.options = options;
   	this.jspUri = tagFilePath;
  @@ -217,6 +220,28 @@
   	}
   
   	return tagHandlerClass;
  +    }
  +
  +    /**
  +     * Get a list of files that the current page has source dependency on.
  +     */
  +    public java.util.List getDependants() {
  +	try {
  +	    Object target;
  +	    if (isTagFile) {
  +                if (ctxt.isReload()) {
  +                    tagHandlerClass = ctxt.load();
  +                }
  +		target = tagHandlerClass.newInstance();
  +	    } else {
  +		target = getServlet();
  +	    }
  +	    if (target != null && target instanceof JspSourceDependent) {
  +		return ((JspSourceDependent) target).getDependants();
  +	    }
  +	} catch (Throwable ex) {
  +	}
  +	return null;
       }
   
       public void service(HttpServletRequest request, 
  
  
  

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