Patched Compiler.java source

Compiler.java (text/plain), 15.60 KB, created by Remy Maucherat on 2002-09-13 12:03:00 UTC

(hide)

Description: Patched Compiler.java source

Filename:

MIME Type:

Creator: Remy Maucherat

Created: 2002-09-13 12:03:00 UTC

Size: 15.60 KB

patch

obsolete

>/* > * $Header: /home/cvs/jakarta-tomcat-jasper/jasper2/src/share/org/apache/jasper/compiler/Compiler.java,v 1.18.2.5 2002/09/09 10:57:50 remm Exp $ > * $Revision: 1.18.2.5 $ > * $Date: 2002/09/09 10:57:50 $ > * > * ==================================================================== > * > * 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.compiler; > >import java.util.*; >import java.io.*; >import java.net.URL; >import javax.servlet.jsp.tagext.TagInfo; >import javax.servlet.ServletException; >import javax.servlet.Servlet; > >import org.xml.sax.Attributes; > >import org.apache.tools.ant.BuildEvent; >import org.apache.tools.ant.BuildException; >import org.apache.tools.ant.BuildListener; >import org.apache.tools.ant.BuildLogger; >import org.apache.tools.ant.DefaultLogger; >import org.apache.tools.ant.Project; >import org.apache.tools.ant.taskdefs.Javac; >import org.apache.tools.ant.types.Path; >import org.apache.tools.ant.types.PatternSet; > >import org.apache.jasper.JspCompilationContext; >import org.apache.jasper.Constants; >import org.apache.jasper.JasperException; >import org.apache.jasper.Options; >import org.apache.jasper.logging.Logger; >import org.apache.jasper.util.SystemLogHandler; >import org.apache.jasper.runtime.HttpJspBase; >import org.apache.jasper.servlet.JspServletWrapper; > >/** > * Main JSP compiler class. This class uses Ant for compiling. > * > * @author Anil K. Vijendran > * @author Mandar Raje > * @author Pierre Delisle > * @author Kin-man Chung > * @author Remy Maucherat > */ >public class Compiler { > > > // ----------------------------------------------------------------- Static > > > static { > > System.setErr(new SystemLogHandler(System.err)); > > } > > // ----------------------------------------------------- Instance Variables > > > protected JspCompilationContext ctxt; > > private ErrorDispatcher errDispatcher; > private PageInfo pageInfo; > private JspServletWrapper jsw; > private JasperAntLogger logger; > > protected Project project=null; > > protected Options options; > > protected Node.Nodes pageNodes; > > // ------------------------------------------------------------ Constructor > > > public Compiler(JspCompilationContext ctxt) { > this(ctxt, null); > } > > > public Compiler(JspCompilationContext ctxt, JspServletWrapper jsw) { > this.jsw = jsw; > this.ctxt = ctxt; > this.errDispatcher = new ErrorDispatcher(); > this.options = ctxt.getOptions(); > } > > // Lazy eval - if we don't need to compile we probably don't need the project > private Project getProject() { > if( project!=null ) return project; > // Initializing project > project = new Project(); > // XXX We should use a specialized logger to redirect to jasperlog > logger = new JasperAntLogger(); > logger.setOutputPrintStream(System.out); > logger.setErrorPrintStream(System.err); > > if( Constants.jasperLog.getVerbosityLevel() >= Logger.DEBUG ) { > logger.setMessageOutputLevel( Project.MSG_VERBOSE ); > } else { > logger.setMessageOutputLevel( Project.MSG_INFO ); > } > project.addBuildListener( logger ); > > if( options.getCompiler() != null ) { > Constants.jasperLog.log("Compiler " + options.getCompiler(), Logger.ERROR ); > project.setProperty("build.compiler", options.getCompiler() ); > } > project.init(); > return project; > } > > class JasperAntLogger extends DefaultLogger { > > private StringBuffer reportBuf = new StringBuffer(); > > protected void printMessage(final String message, > final PrintStream stream, > final int priority) { > } > > protected void log(String message) { > reportBuf.append(message); > reportBuf.append(System.getProperty("line.separator")); > } > > protected String getReport() { > String report = reportBuf.toString(); > reportBuf.setLength(0); > return report; > } > } > > // --------------------------------------------------------- Public Methods > > > /** > * Compile the jsp file from the current engine context > */ > public void generateJava() > throws FileNotFoundException, JasperException, Exception > { > // Setup page info area > pageInfo = new PageInfo(new BeanRepository(ctxt.getClassLoader())); > > String javaFileName = ctxt.getServletJavaFileName(); > > // Setup the ServletWriter > String javaEncoding = ctxt.getOptions().getJavaEncoding(); > > OutputStreamWriter osw = null; > try { > osw = new OutputStreamWriter(new FileOutputStream(javaFileName), > javaEncoding); > } catch (UnsupportedEncodingException ex) { > errDispatcher.jspError("jsp.error.needAlternateJavaEncoding", javaEncoding); > } > > ServletWriter writer = new ServletWriter(new PrintWriter(osw)); > ctxt.setWriter(writer); > > // Parse the file > ParserController parserCtl = new ParserController(ctxt, this); > pageNodes = parserCtl.parse(ctxt.getJspFile()); > > // Validate and process attributes > Validator.validate(this, pageNodes); > > // Dump out the page (for debugging) > // Dumper.dump(pageNodes); > > // Collect page info > Collector.collect(this, pageNodes); > > // Determine which custom tag needs to declare which scripting vars > ScriptingVariabler.set(pageNodes); > > // generate servlet .java file > Generator.generate(writer, this, pageNodes); > writer.close(); > } > > /** > * Compile the jsp file from the current engine context > */ > public void generateClass() > throws FileNotFoundException, JasperException, Exception { > > String javaEncoding = ctxt.getOptions().getJavaEncoding(); > String javaFileName = ctxt.getServletJavaFileName(); > String classpath = ctxt.getClassPath(); > > String sep = System.getProperty("path.separator"); > > StringBuffer errorReport = new StringBuffer(); > boolean success = true; > > // Start capturing the System.err output for this thread > SystemLogHandler.setThread(); > > // Initializing javac task > getProject(); > Javac javac = (Javac) project.createTask("javac"); > > // Initializing classpath > Path path = new Path(project); > path.setPath(System.getProperty("java.class.path")); > StringTokenizer tokenizer = new StringTokenizer(classpath, sep); > while (tokenizer.hasMoreElements()) { > String pathElement = tokenizer.nextToken(); > File repository = new File(pathElement); > path.setLocation(repository); > } > > // Initializing sourcepath > Path srcPath = new Path(project); > srcPath.setLocation(options.getScratchDir()); > > // Configure the compiler object > javac.setEncoding(javaEncoding); > javac.setClasspath(path); > javac.setDebug(ctxt.getOptions().getClassDebugInfo()); > javac.setSrcdir(srcPath); > javac.setOptimize(! ctxt.getOptions().getClassDebugInfo() ); > > // Set the Java compiler to use > if (options.getCompiler() != null) { > javac.setCompiler(options.getCompiler()); > } > > // Build includes path > PatternSet.NameEntry includes = javac.createInclude(); > includes.setName(ctxt.getJspPath()); > > try { > javac.execute(); > } catch (BuildException e) { > success = false; > } > > errorReport.append(logger.getReport()); > > // Stop capturing the System.err output for this thread > String errorCapture = SystemLogHandler.unsetThread(); > if (errorCapture != null) { > errorReport.append(System.getProperty("line.separator")); > errorReport.append(errorCapture); > } > > if (!ctxt.keepGenerated()) { > File javaFile = new File(javaFileName); > javaFile.delete(); > } > > if (!success) { > Constants.jasperLog.log( "Error compiling file: " + javaFileName + " " + errorReport, > Logger.ERROR); > errDispatcher.javacError(errorReport.toString(), javaFileName, pageNodes); > } > } > > /** > * Compile the jsp file from the current engine context > */ > public void compile() > throws FileNotFoundException, JasperException, Exception > { > generateJava(); > generateClass(); > } > > /** > * This is a protected method intended to be overridden by > * subclasses of Compiler. This is used by the compile method > * to do all the compilation. > */ > public boolean isOutDated() { > return isOutDated( true ); > } > > /** > * This is a protected method intended to be overridden by > * subclasses of Compiler. This is used by the compile method > * to do all the compilation. > * @param checkClass Verify the class file if true, only the .java file if false. > */ > public boolean isOutDated(boolean checkClass) { > > String jsp = ctxt.getJspFile(); > > long jspRealLastModified = 0; > try { > URL jspUrl = ctxt.getResource(jsp); > if (jspUrl == null) { > ctxt.incrementRemoved(); > return false; > } > jspRealLastModified = jspUrl.openConnection().getLastModified(); > } catch (Exception e) { > e.printStackTrace(); > return true; > } > > long targetLastModified; > File targetFile; > > if( checkClass ) { > targetFile = new File(ctxt.getClassFileName()); > } else { > targetFile = new File( ctxt.getServletJavaFileName()); > } > > if (!targetFile.exists()) { > return true; > } > targetLastModified = targetFile.lastModified(); > if (targetLastModified < jspRealLastModified) { > //System.out.println("Compiler: outdated, " + targetFile + " " + targetLastModified ); > return true; > } > > // determine if compile time includes 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) { > return false; > } > > Iterator it = includes.iterator(); > while (it.hasNext()) { > String include = (String)it.next(); > try { > URL includeUrl = ctxt.getResource(include); > if (includeUrl == null) { > //System.out.println("Compiler: outdated, no includeUri " + include ); > return true; > } > if (includeUrl.openConnection().getLastModified() > > targetLastModified) { > //System.out.println("Compiler: outdated, include old " + include ); > return true; > } > } catch (Exception e) { > e.printStackTrace(); > return true; > } > } > return false; > > } > > > /** > * Gets the error dispatcher. > */ > public ErrorDispatcher getErrorDispatcher() { > return errDispatcher; > } > > > /** > * Gets the info about the page under compilation > */ > public PageInfo getPageInfo() { > return pageInfo; > } > > > public JspCompilationContext getCompilationContext() { > return ctxt; > } > > > /** > * Remove generated files > */ > public void removeGeneratedFiles() { > try { > String classFileName = ctxt.getServletClassName(); > if (classFileName != null) { > File classFile = new File(classFileName); > classFile.delete(); > } > } catch (Exception e) { > // Remove as much as possible, ignore possible exceptions > } > try { > String javaFileName = ctxt.getServletJavaFileName(); > if (javaFileName != null) { > File javaFile = new File(javaFileName); > javaFile.delete(); > } > } catch (Exception e) { > // Remove as much as possible, ignore possible exceptions > } > } > > >} View Attachment As Raw

This is ASF Bugzilla: the Apache Software Foundation bug system. In case of problems with the functioning of ASF Bugzilla, please contact bugzilla-admin@apache.org. Please Note: this e-mail address is only for reporting problems with ASF Bugzilla. Mail about any other subject will be silently ignored.

• • Home
  • | New
  • | Browse
  • | Search
  • |
    [?]
  • | Reports
  • | Help
  • | New Account
  • | Log In
    Remember [x]
  • | Forgot Password
    Login: [x]