/*
* Copyright 2001-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.taskdefs.optional.jsp.compilers;
import java.io.File;
import org.apache.tools.ant.AntClassLoader;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Java;
import org.apache.tools.ant.taskdefs.optional.jsp.JspC;
import org.apache.tools.ant.taskdefs.optional.jsp.JspMangler;
import org.apache.tools.ant.types.CommandlineJava;
import org.apache.tools.ant.types.Path;
/**
* The implementation of the jasper compiler.
* This is a cut-and-paste of the original Jspc task.
*
* @since ant1.5
*/
public class JasperC extends DefaultJspCompilerAdapter {
/**
* what produces java classes from .jsp files
*/
JspMangler mangler;
public JasperC(JspMangler mangler) {
this.mangler = mangler;
}
/**
* our execute method
*/
public boolean execute()
throws BuildException {
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 = (Java) (getProject().createTask("java"));
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();
}
}
/**
* build up a command line
* @return a command line for jasper
*/
private CommandlineJava setupJasperCommand() {
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;
}
/**
* @return an instance of the mangler this compiler uses
*/
public JspMangler createMangler() {
return mangler;
}
/**
* @since Ant 1.6.2
*/
private Path getClasspath() {
Path p = getJspc().getClasspath();
if (p == null) {
p = new Path(getProject());
return p.concatSystemClasspath("only");
} else {
return p.concatSystemClasspath("ignore");
}
}
/**
* @since Ant 1.6.2
*/
private boolean isTomcat5x() {
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();
}
}
}
}