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JasperC.javaAPI DocApache Ant 1.705894Wed Dec 13 06:16:22 GMT 2006org.apache.tools.ant.taskdefs.optional.jsp.compilers

JasperC

public class JasperC extends DefaultJspCompilerAdapter
The implementation of the jasper compiler. This is a cut-and-paste of the original Jspc task.
since
ant1.5

Fields Summary
org.apache.tools.ant.taskdefs.optional.jsp.JspMangler
mangler
what produces java classes from .jsp files
Constructors Summary
public JasperC(org.apache.tools.ant.taskdefs.optional.jsp.JspMangler mangler)
Constructor for JasperC.

param
mangler a filename converter

        this.mangler = mangler;
Methods Summary
public org.apache.tools.ant.taskdefs.optional.jsp.JspManglercreateMangler()

return
an instance of the mangler this compiler uses

        return mangler;
public booleanexecute()
Our execute method.

return
true if successful
throws
BuildException on error

        getJspc().log("Using jasper compiler", Project.MSG_VERBOSE);
        CommandlineJava cmd = setupJasperCommand();

        try {
            // Create an instance of the compiler, redirecting output to
            // the project log
            Java java = new Java(owner);
            Path p = getClasspath();
            if (getJspc().getClasspath() != null) {
                getProject().log("using user supplied classpath: " + p,
                                 Project.MSG_DEBUG);
            } else {
                getProject().log("using system classpath: " + p,
                                 Project.MSG_DEBUG);
            }
            java.setClasspath(p);
            java.setDir(getProject().getBaseDir());
            java.setClassname("org.apache.jasper.JspC");
            //this is really irritating; we need a way to set stuff
            String []args = cmd.getJavaCommand().getArguments();
            for (int i = 0; i < args.length; i++) {
                java.createArg().setValue(args[i]);
            }
            java.setFailonerror(getJspc().getFailonerror());
            //we are forking here to be sure that if JspC calls
            //System.exit() it doesn't halt the build
            java.setFork(true);
            java.setTaskName("jasperc");
            java.execute();
            return true;
        } catch (Exception ex) {
            if (ex instanceof BuildException) {
                throw (BuildException) ex;
            } else {
                throw new BuildException("Error running jsp compiler: ",
                                         ex, getJspc().getLocation());
            }
        } finally {
            getJspc().deleteEmptyJavaFiles();
        }
private org.apache.tools.ant.types.PathgetClasspath()

since
Ant 1.6.2

        Path p = getJspc().getClasspath();
        if (p == null) {
            p = new Path(getProject());
            return p.concatSystemClasspath("only");
        } else {
            return p.concatSystemClasspath("ignore");
        }
private booleanisTomcat5x()

since
Ant 1.6.2

        AntClassLoader l = null;
        try {
            l = getProject().createClassLoader(getClasspath());
            l.loadClass("org.apache.jasper.tagplugins.jstl.If");
            return true;
        } catch (ClassNotFoundException e) {
            return false;
        } finally {
            if (l != null) {
                l.cleanup();
            }
        }
private org.apache.tools.ant.types.CommandlineJavasetupJasperCommand()
build up a command line

return
a command line for jasper

        CommandlineJava cmd = new CommandlineJava();
        JspC jspc = getJspc();
        addArg(cmd, "-d", jspc.getDestdir());
        addArg(cmd, "-p", jspc.getPackage());

        if (!isTomcat5x()) {
            addArg(cmd, "-v" + jspc.getVerbose());
        } else {
            getProject().log("this task doesn't support Tomcat 5.x properly, "
                             + "please use the Tomcat provided jspc task "
                             + "instead");
        }

        addArg(cmd, "-uriroot", jspc.getUriroot());
        addArg(cmd, "-uribase", jspc.getUribase());
        addArg(cmd, "-ieplugin", jspc.getIeplugin());
        addArg(cmd, "-webinc", jspc.getWebinc());
        addArg(cmd, "-webxml", jspc.getWebxml());
        addArg(cmd, "-die9");

        if (jspc.isMapped()) {
            addArg(cmd, "-mapped");
        }
        if (jspc.getWebApp() != null) {
            File dir = jspc.getWebApp().getDirectory();
            addArg(cmd, "-webapp", dir);
        }
        logAndAddFilesToCompile(getJspc(), getJspc().getCompileList(), cmd);
        return cmd;