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/* *******************************************************************
* Copyright (c) 2000-2001 Xerox Corporation.
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Xerox/PARC initial implementation
* ******************************************************************/
package org.aspectj.tools.ant.taskdefs;
import org.apache.tools.ant.*;
import org.apache.tools.ant.types.*;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.taskdefs.*;
import org.apache.tools.ant.util.JavaEnvUtils;
import java.io.*;
import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.StringTokenizer;
/**
* Ant task for the AspectJ compiler -- AJC.
* List (.lst) files are passed in as includes.
*
* This task was developed by the AspectJ Project
*
* @author Jeffrey Palm
* @see org.aspectj.tools.ant.taskdefs.compilers.AjcCompiler
*/
public class Ajc2 extends Javac {
/**
* The name of the adapter we use.
*/
public final static String ADAPTER_CLASS =
"org.aspectj.tools.ant.taskdefs.compilers.Ajc";
/* ----------------------------------------------------------------------
* Attribute members
* ----------------------------------------------------------------------
*/
/**
* How many concurrent threads to use for compilation,
* defaults to 0 -- multi-threading disabled.
*/
private Integer threads;
/**
* Don't generate any comments into the woven code.
*/
private boolean nocomments;
/**
* Don't generate .ajsym or .ajsline files.
*/
private boolean nosymbols;
/**
* Generate regular Java code into .
*/
private boolean preprocess;
/**
* Specify where to place intermediate .java files
* defaults to ./ajworkingdir.
*/
private File workingdir;
/**
* The file is a line-delimited list of arguments
* these arguments are inserted into the argument list
*/
private List argfiles;
/* ----------------------------------------------------------------------
* Misc. members
* ----------------------------------------------------------------------
*/
/**
* Whether we have used the excludes attribute.
*/
private boolean haveExcludes = false;
/**
* Whether we have used the includes attribute.
*/
private boolean haveIncludes = false;
/**
* Whether we have used the excludes attribute.
* @return Whether we have used the excludes attribute.
*/
protected boolean hasExcludes() {
return haveExcludes;
}
/**
* Whether we have used the includes attribute.
* @return Whether we have used the includes attribute.
*/
protected boolean hasIncludes() {
return haveIncludes;
}
/* ----------------------------------------------------------------------
* Attribute access methods
* ----------------------------------------------------------------------
*/
/**
* Sets the number of threads.
*
* @param threads the number of threads.
* @see Ajc2#threads
*/
public void setThreads(Integer threads) {
this.threads = threads;
}
/**
* Returns the number of threads.
*
* @return the number of threads.
* @see Ajc2#threads
*/
public Integer getThreads() {
return threads;
}
/**
* Set the -nocomments flag.
*
* @param nocomments true turns on the flag.
* @see Ajc2#nocomments
*/
public void setNocomments(boolean nocomments) {
this.nocomments = nocomments;
}
/**
* Returns if the -nocomments flag is turned on.
*
* @return true if the -nocomments flag is on.
* @see Ajc2#nocomments
*/
public boolean getNocomments() {
return nocomments;
}
/**
* Set the -nosymbols flag.
*
* @param nosymbols true turns on the flag.
* @see Ajc2#nosymbols
*/
public void setNosymbols(boolean nosymbols) {
this.nosymbols = nosymbols;
}
/**
* Returns if the -nosymbols flag is turned on.
*
* @return true if the -nosymbols flag is on.
* @see Ajc2#nosymbols
*/
public boolean getNosymbols() {
return nosymbols;
}
/**
* Returns if the -preprocess flag is turned on.
*
* @return true if the -preprocess flag is on.
* @see Ajc2#preprocess
*/
public void setPreprocess(boolean preprocess) {
this.preprocess = preprocess;
}
/**
* Returns if the -preprocess flag is turned on.
*
* @return true if the -preprocess flag is on.
* @see Ajc2#preprocess
*/
public boolean getPreprocess() {
return preprocess;
}
/**
* Sets the workingdir.
*
* @param workingdir the new workingdir.
* @see Ajc2#workingdir
*/
public void setWorkingdir(File workingdir) {
this.workingdir = workingdir;
}
/**
* Returns the current workingdir.
*
* @return the current workingdir.
* @see Ajc2#workingdir
*/
public File getWorkingdir() {
return workingdir;
}
/**
* Sets the the argument files by the comma-delimited String passed in.
*
* @param argfiles comma-delimited String contained argument files.
*/
public void setArgfiles(String argfiles) {
StringTokenizer tok = new StringTokenizer(argfiles, ",");
while (tok.hasMoreTokens()) {
File argfile = project.resolveFile(tok.nextToken());
if (argfile != null && argfile.exists() && !argfile.isDirectory()) {
createArgfile().setFile(argfile);
}
}
}
/**
* Creates a nested Argfile, add it to the list
* argfiles, and returns the new Argfile
* instance.
*
* @return a new Argfile instance.
*/
public Argfile createArgfile() {
Argfile argfile = new Argfile();
if (argfiles == null) {
argfiles = new ArrayList();
}
argfiles.add(argfile);
return argfile;
}
/**
* Returns the java.util.List of argfiles.
* This could be null.
*
* @return the list of argfiles.
*/
public List getArgfiles() {
return argfiles;
}
/**
* A simple class with one member -- file -- that
* represents an argument file.
*/
public static class Argfile {
private File file;
public void setFile(File file) { this.file = file; }
public File getFile() { return file; }
public String toString() { return file.getAbsolutePath(); }
}
/* ----------------------------------------------------------------------
* Misc. methods
* ----------------------------------------------------------------------
*/
/* Leaving the includes blank in the Javac task defaults to including all.
* In Ajc, if the user specifies an argfile, but leaves the includes and
* excludes blank that person probably meant to just includes to argfile.
* So, we keep track of whether includes and/or excludes have been explicitly
* used with the have{In,Ex}cludes members, and setting these flags
* in the create... and set... methods.
*
* When constructing the compileList, if both haveIncludes and haveExcludes
* are false, but the user has specified an argfile, then we set includes
* to '!**' before adding the contents of the argfile.
*/
/**
* Override Javac.createInclude() to set haveIncludes
* to true.
*
* @return new PatternSet.NameEntry to be added to the include list.
* @see org.apache.tools.taskdefs.Javac#createInclude()
*/
public PatternSet.NameEntry createInclude() {
haveIncludes = true;
return super.createInclude();
}
/**
* Override Javac.createExclude() to set haveExcludes
* to true.
*
* @return new PatternSet.NameEntry to be added to the exclude list.
* @see org.apache.tools.taskdefs.Javac#createExclude()
*/
public PatternSet.NameEntry createExclude() {
haveExcludes = true;
return super.createExclude();
}
/**
* Override Javac.setIncludes(String) to set haveIncludes
* to true.
*
* @param includes Comma-separated list of includes.
* @see org.apache.tools.taskdefs.Javac#setIncludes(java.lang.String)
*/
public void setIncludes(String includes) {
haveIncludes = true;
super.setIncludes(includes);
}
/**
* Override Javac.setExcludes(String) to set haveExcludes
* to true.
*
* @param excludes Comma-separated list of excludes.
* @see org.apache.tools.taskdefs.Javac#setExcludes(java.lang.String)
*/
public void setExcludes(String excludes) {
haveExcludes = true;
super.setExcludes(excludes);
}
public String getAdapterClass() {
return ADAPTER_CLASS;
}
public final void execute() throws BuildException {
prepare();
executeAfterPrepare();
}
/**
* Executes by first setting the build.compiler property
* to AjcCompiler, then invokes the super.execute() method.
*
* @throws org.apache.tools.ant.BuildException
* @see org.apache.tools.ant.taskdefs.Javac#execute()
*/
public void executeAfterPrepare() throws BuildException {
// Save the old build.compiler property
String oldBuildCompiler = project.getProperty("build.compiler");
// If oldBuildCompiler is null try to resolve it
if (oldBuildCompiler == null) {
String javaVersion = JavaEnvUtils.getJavaVersion();
if (javaVersion.equals(JavaEnvUtils.JAVA_1_0)) {
// Cannot happen
} else if (javaVersion.equals(JavaEnvUtils.JAVA_1_1)) {
oldBuildCompiler = "classic";
} else if (javaVersion.equals(JavaEnvUtils.JAVA_1_2)) {
oldBuildCompiler = "classic";
} else if (javaVersion.equals(JavaEnvUtils.JAVA_1_3)) {
oldBuildCompiler = "modern";
}
}
// Set the new adapter
project.setProperty("build.compiler", getAdapterClass());
BuildException caught = null;
try {
super.execute();
} catch (BuildException be) {
caught = be;
} finally {
// Reset to the old compiler
if (oldBuildCompiler != null) {
project.setProperty("build.compiler", oldBuildCompiler);
}
}
// If we caught an exception executing throw it
if (caught != null) {
throw caught;
}
}
/**
* Guaranteed to be called before doing real execute.
*/
public void prepare() {
if (argfiles != null && !haveIncludes &&
!haveExcludes && getSrcdir() == null) {
useDefaultSrcdir();
}
}
protected final void useDefaultSrcdir() {
setSrcdir(new Path(project, "."));
}
/**
* Overrides Javac.scanDir(..) so that it doesn't check dependencies.
*
* @see org.apache.tools.ant.taskdefs.Javac#scanDir
*/
protected void scanDir(File srcDir, File destDir, String files[]) {
List newFiles = new ArrayList();
// Add the files listed in the argfiles to the includes
List newIncludes = new ArrayList();
List newArguments = new ArrayList();
if (argfiles != null) {
Iterator iter = argfiles.iterator();
while (iter.hasNext()) {
File argfile = ((Argfile)iter.next()).getFile();
expandArgfile(argfile, newIncludes, newArguments);
}
}
// If there aren't any includes, but we've used an argfile then we should
// set the includes to be the one's found in newIncludes
// If we do this, we need to re-read files from the directory scanner
if (!haveIncludes && !haveExcludes && argfiles != null) {
log("Setting includes to '!**'", Project.MSG_VERBOSE);
setIncludes("!**");
//files = getDirectoryScanner(srcDir).getIncludedFiles();
}
// Otherwise we want to add all .java files to the compileList
else {
for (int i = 0; i < files.length; i++) {
File newFile = new File(srcDir, files[i]);
if (newFile != null &&
newFile.exists() &&
newFile.getName().endsWith(".java")) {
newFiles.add(newFile);
}
}
}
// Add the new included files
Iterator iter = newIncludes.iterator();
while (iter.hasNext()) {
newFiles.add((File)iter.next());
}
// This is the same behavior found in Javac
int newFileSize = newFiles.size();
if (newFileSize > 0) {
File[] newCompileList = new File[compileList.length + newFileSize];
System.arraycopy(compileList, 0, newCompileList, 0, compileList.length);
System.arraycopy(newFiles.toArray(), 0, newCompileList,
compileList.length, newFileSize);
compileList = newCompileList;
}
}
private void expandArgfile(File argfile, List includes, List arguments) {
log("argfile:" + argfile, Project.MSG_VERBOSE);
// All paths are relative to the parent
File parent = argfile.getParentFile();
// Sanity check
if (parent == null || !parent.exists() || !parent.isDirectory()) {
return;
}
// Read the file
BufferedReader in = null;
try {
in = new BufferedReader(new FileReader(argfile));
String line;
while ((line = in.readLine()) != null) {
line = line.trim();
// Skip blank lines
if ("".equals(line)) {
continue;
}
// Allow '#' and '//' line comments
int isharp = line.indexOf("#");
if (isharp != -1) {
line = line.substring(0, isharp);
}
// int istar = -1;
// Argument
if (line.startsWith("-")) {
arguments.add(line);
}
// If there are stars we'll try to resolve the file here
else if (line.indexOf("*") != -1) {
log("The argfile line '" + line + "' is invalid",
Project.MSG_WARN);
}
// Another argfile
else if (line.startsWith("@")) {
String newArgfileName = line.substring(1);
File newArgfile = new File(parent, newArgfileName);
expandArgfile(newArgfile, includes, arguments);
}
// Source file
else {
File newfile = new File(line);
if (!newfile.isAbsolute()) {
newfile = new File(parent, line);
}
if (newfile != null && newfile.exists() &&
!newfile.isDirectory() &&
newfile.getName().endsWith(".java")) {
includes.add(newfile);
}
}
}
} catch (IOException ioe) {
log("trouble with argfile: " + argfile + ":" + ioe, Project.MSG_ERR);
} finally {
try {
if (in != null) {
in.close();
}
} catch (IOException ioe2) {
}
}
}
}
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