javajspgenerator.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 2,451 行 · 第 1/5 页

    out.popDepth();
    out.println("} catch (Exception e) {");
    out.println("  e.printStackTrace();");
    out.println("}");
    out.popDepth();
    out.println("}");
  }

  /**
   * out.Prints the fragments
   */
  private void generateTags(JspJavaWriter out) throws Exception
  {
    out.println();
    out.println("final static class TagState {");
    out.pushDepth();

    _rootNode.generateTagState(out);

    for (JspFragmentNode frag : _fragmentList) {
      frag.generateTagState(out);
    }

    out.println();
    out.println("void release()");
    out.println("{");
    out.pushDepth();

    _rootNode.generateTagRelease(out);

    for (JspFragmentNode frag : _fragmentList) {
      frag.generateTagRelease(out);
    }

    /*
    for (int i = 0; i < _topTag.size(); i++) {
      TagInstance tag = _topTag.get(i);

      if (tag.getTagClass() == null) {
      }
      else if (Tag.class.isAssignableFrom(tag.getTagClass())) {
        out.println("if (" + tag.getId() + " != null)");
        out.println("  " + tag.getId() + ".release();");
      }
    }
    */

    out.popDepth();
    out.println("}"); // release

    out.popDepth();
    out.println("}"); // TagState
  }

  /**
   * out.Prints the fragments
   */
  private void generateFragments(JspJavaWriter out) throws Exception
  {
    boolean hasFragment = false;

    for (int i = 0; i < _fragmentList.size(); i++) {
      JspFragmentNode node = _fragmentList.get(i);

      if (node.isStatic()) {
      }
      /*
      else if (node.isValueFragment()) {
	node.generateValueMethod(out);
      }
      */
      else
	hasFragment = true;
    }
    
    if (! hasFragment)
      return;

    out.println("public static class _CauchoFragment extends com.caucho.jsp.JspFragmentSupport {");
    out.pushDepth();
    out.println("private int _frag_code;");
    out.println("private TagState _jsp_state;");

    out.println();
    out.println("static _CauchoFragment create(_CauchoFragment frag, int code,");
    out.println("                              com.caucho.jsp.PageContextImpl pageContext,");
    out.println("                              javax.servlet.jsp.tagext.JspTag parent,");
    out.println("                              javax.servlet.jsp.tagext.JspFragment jspBody,");
    out.println("                              TagState _jsp_state)");
    out.println("{");
    out.pushDepth();
    out.println("if (frag == null)");
    out.println("  frag = new _CauchoFragment();");
    out.println();
    out.println("frag._frag_code = code;");
    out.println("frag.pageContext = pageContext;");
    out.println("frag._jsp_env = pageContext.getELContext();");
    out.println("frag._jsp_parent_tag = parent;");
    out.println("frag._jspBody = jspBody;");
    out.println("frag._jsp_state = _jsp_state;");
    out.println();
    out.println("return frag;");
    out.popDepth();
    out.println("}");
    
      
    for (int i = 0; i < _fragmentList.size(); i++) {
      JspFragmentNode frag = _fragmentList.get(i);

      if (frag.isStatic())
	continue;

      if (frag.isValueFragment())
	frag.generateValueMethod(out);
      else {
	out.println();
	out.println("private void " + frag.getFragmentName() + "(JspWriter out)");
	out.println("  throws Throwable");
	out.println("{");
	out.pushDepth();

	HashSet<String> oldDeclaredVariables = _declaredVariables;
	_declaredVariables = new HashSet<String>();
	try {
	  frag.generatePrologueChildren(out);
	  frag.generate(out);
	} finally {
	  _declaredVariables = oldDeclaredVariables;
	}
	
	out.popDepth();
	out.println("}");
      }
    }

    out.println();
    out.println("protected void _jsp_invoke(JspWriter out)");
    out.println("  throws Throwable");
    out.println("{");
    out.pushDepth();
    out.println("switch (_frag_code) {");
    
    for (int i = 0; i < _fragmentList.size(); i++) {
      JspFragmentNode frag = _fragmentList.get(i);
      
      if (frag.isStatic() || frag.isValueFragment())
	continue;
      
      out.println("case " + i + ":");
      out.println("  " + frag.getFragmentName() + "(out);");
      out.println("  break;");
    }

    out.println("}");
    
    out.popDepth();
    out.println("}");
    
    out.popDepth();
    out.println("}");
  }

  /**
   * Generates the dependency methods.  Since we can't assume the
   * underlying class is Page when the JSP page uses "extends"
   * each JSP page needs to generate this code.
   */
  private void generateDepends(JspJavaWriter out) throws IOException
  {
    out.println();
    // out.println("private com.caucho.java.LineMap _caucho_line_map;");
    out.println("private java.util.ArrayList _caucho_depends = new java.util.ArrayList();");
    if (_isCacheable && ! _isUncacheable)
      out.println("private java.util.ArrayList _caucho_cacheDepends = new java.util.ArrayList();");
    
    out.println();
    out.println("public java.util.ArrayList _caucho_getDependList()");
    out.println("{");
    out.println("  return _caucho_depends;");
    out.println("}");
    
    out.println();
    out.println("public void _caucho_addDepend(com.caucho.vfs.PersistentDependency depend)");
    out.println("{");
    if (_parseState.getExtends() == null)
      out.println("  super._caucho_addDepend(depend);");
    out.println("  com.caucho.jsp.JavaPage.addDepend(_caucho_depends, depend);");
    out.println("}");

    out.println();
    out.println("public boolean _caucho_isModified()");
    out.println("{");
    out.pushDepth();
    out.println("if (_caucho_isDead)");
    out.println("  return true;");
    out.println("if (com.caucho.server.util.CauchoSystem.getVersionId() != " +
		CauchoSystem.getVersionId() + "L)");
    out.println("  return true;");
    
    ArrayList<PersistentDependency> depends;
    depends = new ArrayList<PersistentDependency>();
    depends.addAll(_parseState.getDependList());

    for (int i = 0; i < _depends.size(); i++) {
      PersistentDependency depend = _depends.get(i);

      if (! depends.contains(depend))
	depends.add(depend);
    }

    if (_alwaysModified)
      out.println("return true;");

    else if (depends.size() == 0)
      out.println("return false;");

    else {
      out.println("for (int i = _caucho_depends.size() - 1; i >= 0; i--) {");
      out.pushDepth();
      out.println("com.caucho.vfs.Dependency depend;");
      out.println("depend = (com.caucho.vfs.Dependency) _caucho_depends.get(i);");
      out.println("if (depend.isModified())");
      out.println("  return true;");
      out.popDepth();
      out.println("}");
      out.println("return false;");
    }
    
    out.popDepth();
    out.println("}");

    if (_rootNode.isStatic() && CauchoSystem.isTest())
      out.println("private static long _caucho_lastModified = com.caucho.util.Alarm.getCurrentTime();");
    
    out.println();
    out.println("public long _caucho_lastModified()");
    out.println("{");
    out.pushDepth();
    /*
    if (! _isCacheable || _isUncacheable)
      out.println("return 0;");
    else {
      out.println("return com.caucho.jsp.Page.calculateLastModified(_caucho_depends, _caucho_cacheDepends);");
    }
    */

    if (! isGenerateStatic()) {
      out.println("return 0;");
    }
    else if (CauchoSystem.isTest()) {
      out.println("return _caucho_lastModified;");
    }
    else {
      out.println("long lastModified = 0;");
      
      out.println("for (int i = _caucho_depends.size() - 1; i >= 0; i--) {");
      out.pushDepth();
      out.println("Object oDepend = _caucho_depends.get(i);");
      out.println("if (oDepend instanceof com.caucho.vfs.Depend) {");
      out.println("  com.caucho.vfs.Depend depend = (com.caucho.vfs.Depend) oDepend;");
      out.println("  if (lastModified < depend.getLastModified())");
      out.println("    lastModified = depend.getLastModified();");
      out.println("}");
      out.popDepth();
      out.println("}");

      out.println();
      out.println("return lastModified;");
    }
    
    out.popDepth();
    out.println("}");

    /*
    out.println();
    out.println("public com.caucho.java.LineMap _caucho_getLineMap()");
    out.println("{");
    out.pushDepth();
    out.println("return _caucho_line_map;");
    out.popDepth();
    out.println("}");
    */

    if (_parseState.getExtends() == null && ! _parseState.isTag()) {
      out.println();
      out.println("public void destroy()");
      out.println("{");
      out.pushDepth();
      out.println("  _caucho_isDead = true;");
      out.println("  super.destroy();");

      out.println("TagState tagState;");
      //out.println("while ((tagState = _jsp_freeState.allocate()) != null)");
      //out.println("  tagState.release();");
      out.popDepth();
      out.println("}");
    }

    if (_parseState.getExtends() != null && ! _parseState.isTag()) {
      out.println();
      out.println("public com.caucho.server.webapp.WebApp _caucho_getApplication()");
      out.println("{");
      out.pushDepth();
      out.println(" return (com.caucho.server.webapp.WebApp) getServletConfig().getServletContext();");
      out.popDepth();
      out.println("}");
    }

    printDependInit(out, depends);
    generateInject(out);
  }

  private boolean isGenerateStatic()
  {
    // #2548
    
    return false;
    /*
    return (_rootNode.isStatic()
	    && ! _parseState.isTag()
	    && _parseState.getExtends() == null);
    */
  }
  /**
   * Generates the normal init.
   */
  private void generateInit(JspJavaWriter out)
    throws IOException
  {
    out.println();
    out.println("public java.util.HashMap<String,java.lang.reflect.Method> _caucho_getFunctionMap()");
    out.println("{");
    out.pushDepth();

    out.println("return _jsp_functionMap;");
    
    out.popDepth();
    out.println("}");

    if (isTag())
      out.println("static boolean _jsp_isTagInit;");

    out.println();
    out.println("public void init(ServletConfig config)");
    out.println("{");
    out.pushDepth();

    if (isTag()) {
      out.println("if (_jsp_isTagInit)");
      out.println("  return;");
      out.println("_jsp_isTagInit = true;");
    }

    out.println("try {");
    out.pushDepth();
      
    out.println("com.caucho.server.webapp.WebApp webApp");
    out.println("  = (com.caucho.server.webapp.WebApp) config.getServletContext();");
      
    if (! isTag()) {
      out.println("super.init(config);");

      out.println("_jsp_pageManager = webApp.getJspApplicationContext().getPageManager();");
    }
      
    out.println("com.caucho.jsp.TaglibManager manager = webApp.getJspApplicationContext().getTaglibManager();");

    for (Taglib taglib : _tagLibraryList) {
      out.print("manager.addTaglibFunctions(_jsp_functionMap, \"");
      out.printJavaString(taglib.getPrefixString());
      out.print("\", \"");
      out.printJavaString(taglib.getURI());
      out.println("\");");
    }

    if (! isTag())
      out.println("com.caucho.jsp.PageContextImpl pageContext = new com.caucho.jsp.PageContextImpl(webApp, this);");
    else
      out.println("com.caucho.jsp.PageContextImpl pageContext = new com.caucho.jsp.PageContextImpl(webApp, _caucho_getFunctionMap());");
      
    for (int i = 0; i < _exprList.size(); i++) {
      String expr = _exprList.get(i);
      
      out.print("_caucho_expr_" + i + " = com.caucho.jsp.JspUtil.createExpr(pageContext.getELContext(), \"");
      out.printJavaString(expr);
      out.println("\");");
    }
      
    for (int i = 0; i < _valueExprList.size(); i++) {
      ValueExpr expr = _valueExprList.get(i);

      out.print("_caucho_value_expr_" + i + " = com.caucho.jsp.JspUtil.createValueExpression(pageContext.getELContext(), ");
      out.printClass(expr.getReturnType());
      out.print(".class, \"");
      out.printJavaString(expr.getExpressionString());
      out.println("\");");
    }
    
    for (int i = 0; i < _methodExprList.size(); i++) {
      MethodExpr expr = _methodExprList.get(i);
	
      out.print("_caucho_method_expr_" + i + " = com.caucho.jsp.JspUtil.createMethodExpression(pageContext.getELContext(), \"");
      out.printJavaString(expr.getExprString());
      out.print("\", ");
      if (expr.getReturnType() != null) {
	out.printClass(expr.getReturnType());
	out.print(".class");
      }
      else
	out.print("String.class");
      
      out.print(", new Class[] {");

      Class []args = expr.getArgs();
      if (args != null) {
	for (int j = 0; j < args.length; j++) {
	  if (j != 0)
	    out.print(", ");

	  out.printClass(args[j]);
	  out.print(".class");
	}
      }
      
      out.println("});");
    }

    for (String tagClass : _tagFileClassList) {
      out.println("new " + tagClass + "().init(config);");
    }

    out.popDepth();
    out.println("} catch (Exception e) {");
    out.println("  throw com.caucho.config.ConfigException.create(e);");
    out.println("}");
    
    out.popDepth();
    out.println("}");
  }

  /**
   * Prints the initialization methods to track dependencies.
   */
  private void printDependInit(JspJavaWriter out,
			       ArrayList<PersistentDependency> depends)
    throws IOException
  {
    out.println();
    out.println("public void init(com.caucho.vfs.Path appDir)");
    out.println("  throws javax.servlet.ServletException");
    out.println("{");
    out.pushDepth();

    if (_ideHack) {
      out.println("_jsp_init_strings();");
    }

    out.println("com.caucho.vfs.Path resinHome = com.caucho.server.util.CauchoSystem.getResinHome();");
    out.println("com.caucho.vfs.MergePath mergePath = new com.caucho.vfs.MergePath();");
    out.println("mergePath.addMergePath(appDir);");
    out.println("mergePath.addMergePath(resinHome);");
    out.println("com.caucho.loader.DynamicClassLoader loader;");
    out.println("loader = (com.caucho.loader.DynamicClassLoader) getClass().getClassLoader();");
    out.println("String resourcePath = loader.getResourcePathSpecificFirst();");
    out.println("mergePath.addClassPath(resourcePath);");

    MergePath classPath = new MergePath();
    classPath.addClassPath();
    
    /* XXX: the order shouldn't matter in this situation
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    if (classLoader instanceof DynamicClassLoader) {
      DynamicClassLoader loader = (DynamicClassLoader) classLoader;
    
      String resourcePath = loader.getResourcePathSpecificFirst();
      classPath.addClassPath(resourcePath);
    }
    */
    
    String srcName = _filename;
    if (srcName == null)
      srcName = "foo";

    out.println("com.caucho.vfs.Depend depend;");
    
    Path appDir = getAppDir();
    for (int i = 0; i < depends.size(); i++) {
      PersistentDependency dependency = depends.get(i);

      if (dependency instanceof Depend) {
        Depend depend = (Depend) dependency;