cvs commit: jakarta-tomcat-jasper/jasper34/generator/org/apache/jasper34/jsptree JspPageInfo.java

[co...@apache.org]

costin      01/06/05 22:50:29

  Added:       jasper34/generator/org/apache/jasper34/jsptree
                        JspPageInfo.java
  Log:
  Informations collected about the JSP page - including the tree of generators
  that will be used to generate the code ( soon to be changed to visitors
  instead of hardcoded )
  
  This used to be part of JspParseEventListener.
  It'll simplify a lot the SAX parser, etc.
  
  Revision  Changes    Path
  1.1                  jakarta-tomcat-jasper/jasper34/generator/org/apache/jasper34/jsptree/JspPageInfo.java
  
  Index: JspPageInfo.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.jasper34.jsptree;
  
  import java.util.*;
  import java.io.*;
  import java.net.*;
  
  import javax.servlet.jsp.tagext.TagInfo;
  import javax.servlet.jsp.tagext.TagLibraryInfo;
  
  import org.apache.jasper34.core.*;
  import org.apache.jasper34.generator.*;
  
  import org.apache.jasper34.runtime.JasperException;
  import org.apache.tomcat.util.log.*;
  import org.apache.jasper34.parser.*;
  
  /**
   * Internal representation of the JSP page, including all collected
   * directives and options. The data is stored in a tree of JspNodes
   * ( XXX right now we're stil using tree of Generators ) and external
   * visitors will generate the code ( or execute the page ).
   *
   * During page parsing we'll construct a PageInfo, with all the
   * associated informations.
   *
   * Refactored from JspParseEventListener, generators.
   *
   * @author Anil K. Vijendran
   * @author Costin Manolache
   */
  public class JspPageInfo {
      // XXX public fields will be replaced with API
      public String servletClassName;
      
      public String jspServletBase = Constants.JSP_SERVLET_BASE;
      public String serviceMethodName = Constants.SERVICE_METHOD_NAME;
      public String servletContentType = Constants.SERVLET_CONTENT_TYPE;
  
      public String extendsClass = "";
      public Vector interfaces = new Vector();
      public Vector imports = new Vector();
  
      public String error = "";
  
      public boolean genSessionVariable = true;
      public boolean singleThreaded = false;
      public boolean autoFlush = true;
  
      public Vector generators = new Vector();
  
      public BeanRepository beanInfo;
  
      public int bufferSize = Constants.DEFAULT_BUFFER_SIZE;
  
      // a set of boolean variables to check if there are multiple attr-val
      // pairs for jsp directive.
      public boolean languageDir = false, extendsDir = false, sessionDir = false;
      public boolean bufferDir = false, threadsafeDir = false, errorpageDir = false;
      public boolean iserrorpageDir = false, infoDir = false, autoFlushDir = false;
      public boolean contentTypeDir = false;
  
  
      /* support for large files */
      public int stringId = 0;
      public Vector vector = new Vector();
      public String dataFile;
  
      public TagLibraries libraries;
  
      // Variables shared by all TagBeginGenerator and TagEndGenerator instances
      // to keep track of nested tags and variable names
      private Stack tagHandlerStack;
      private Hashtable tagVarNumbers;
  
      // This variable keeps track of tag pools.  We only need
      // one tag pool per tag reuse scope.
      public Vector tagPools = new Vector();
      
      public JspCompilationContext ctxt;
  
      public JspPageInfo(JspCompilationContext ctxt) {
  	this.beanInfo = new BeanRepository(ctxt.getClassLoader());
          this.libraries = new TagLibraries(ctxt.getClassLoader());
          this.ctxt = ctxt;
  
          // FIXME: Is this good enough? (I'm just taking the easy way out - akv)
          if (ctxt.getOptions().getLargeFile())
              dataFile = ctxt.getOutputDir() + File.separatorChar +
                  ctxt.getServletPackageName() + "_" +
                  ctxt.getServletClassName() + ".dat";
      }
  
      public final void addGenerator(GeneratorBase gen) throws JasperException {
          gen.init(ctxt);
          generators.addElement(gen);
      }
  
      public Stack getTagHandlerStack() {
          if (tagHandlerStack == null) {
              tagHandlerStack = new Stack();
          }
          return tagHandlerStack;
      }
  
      public Hashtable getTagVarNumbers() {
          if (tagVarNumbers == null) {
              tagVarNumbers = new Hashtable();
          }
          return tagVarNumbers;
      }
  
      public TagLibraries getTagLibraries() {
  	return libraries;
      }
  
      // -------------------- Accessors --------------------
  
      // this could go directly to the JavaCodeGenerator
  
      public void addImport( String str ) {
  	imports.addElement( str );
      }
  
  
      public String getServletClassName() {
  	return ctxt.getServletClassName();
      }
  
      public String getServletPackageName() {
  	return ctxt.getServletPackageName();
      }
  
      public boolean isErrorPage() {
  	return ctxt.isErrorPage();
      }
  }