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Groovy example source code file (Groovyc.java)
This example Groovy source code file (Groovyc.java) is included in the DevDaily.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.
The Groovy Groovyc.java source code
/*
* Copyright 2003-2010 the original author or authors.
*
* 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.codehaus.groovy.ant;
import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyResourceLoader;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.PosixParser;
import org.apache.tools.ant.AntClassLoader;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.RuntimeConfigurable;
import org.apache.tools.ant.taskdefs.Execute;
import org.apache.tools.ant.taskdefs.Javac;
import org.apache.tools.ant.taskdefs.MatchingTask;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.util.GlobPatternMapper;
import org.apache.tools.ant.util.SourceFileScanner;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.CompilerConfiguration;
import org.codehaus.groovy.control.SourceExtensionHandler;
import org.codehaus.groovy.tools.ErrorReporter;
import org.codehaus.groovy.tools.FileSystemCompiler;
import org.codehaus.groovy.tools.RootLoader;
import org.codehaus.groovy.tools.javac.JavaAwareCompilationUnit;
import org.codehaus.groovy.runtime.DefaultGroovyMethods;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
/**
* Compiles Groovy source files. This task can take the following arguments:
* <ul>
* <li>srcdir
* <li>destdir
* <li>classpath
* <li>encoding
* <li>verbose
* <li>failonerror
* <li>includeantruntime
* <li>includejavaruntime
* <li>memoryInitialSize
* <li>memoryMaximumSize
* <li>fork
* <li>stacktrace
* <li>stubdir
* </ul>
* Of these arguments, the <b>srcdir and destdir are required.
* <p/>
* <p>When this task executes, it will recursively scan srcdir and destdir looking for Groovy source files
* to compile. This task makes its compile decision based on timestamp.</p>
* <p/>
* <p>Based heavily on the Javac implementation in Ant.
*
* @author <a href="mailto:james@coredevelopers.net">James Strachan
* @author Hein Meling
* @author <a href="mailto:russel.winder@concertant.com">Russel Winder
* @author Danno Ferrin
* @version $Revision: 21603 $
*/
public class Groovyc extends MatchingTask {
private final LoggingHelper log = new LoggingHelper(this);
private Path src;
private File destDir;
private Path compileClasspath;
private Path compileSourcepath;
private String encoding;
private boolean stacktrace = false;
private boolean verbose = false;
private boolean includeAntRuntime = true;
private boolean includeJavaRuntime = false;
private boolean fork = false;
private File forkJDK;
private String memoryInitialSize;
private String memoryMaximumSize;
private String scriptExtension = "*.groovy";
private String targetBytecode = null;
protected boolean failOnError = true;
protected boolean listFiles = false;
protected File[] compileList = new File[0];
private String updatedProperty;
private String errorProperty;
private boolean taskSuccess = true; // assume the best
private boolean includeDestClasses = true;
protected CompilerConfiguration configuration;
private Javac javac;
private boolean jointCompilation;
private List<File> temporaryFiles = new ArrayList(2);
private File stubDir;
private boolean keepStubs;
private Set<String> scriptExtensions = new LinkedHashSet();
/**
* Adds a path for source compilation.
*
* @return a nested src element.
*/
public Path createSrc() {
if (src == null) {
src = new Path(getProject());
}
return src.createPath();
}
/**
* Recreate src.
*
* @return a nested src element.
*/
protected Path recreateSrc() {
src = null;
return createSrc();
}
/**
* Set the source directories to find the source Java files.
*
* @param srcDir the source directories as a path
*/
public void setSrcdir(Path srcDir) {
if (src == null) {
src = srcDir;
} else {
src.append(srcDir);
}
}
/**
* Gets the source dirs to find the source java files.
*
* @return the source directories as a path
*/
public Path getSrcdir() {
return src;
}
/**
* Set the extension to use when searching for Groovy source files.
* Accepts extensions in the form *.groovy, .groovy or groovy
*
* @param scriptExtension the extension of Groovy source files
*/
public void setScriptExtension(String scriptExtension) {
if (scriptExtension.startsWith("*.")) {
this.scriptExtension = scriptExtension;
} else if (scriptExtension.startsWith(".")) {
this.scriptExtension = "*" + scriptExtension;
} else {
this.scriptExtension = "*." + scriptExtension;
}
}
/**
* Get the extension to use when searching for Groovy source files.
*
* @return the extension of Groovy source files
*/
public String getScriptExtension() {
return scriptExtension;
}
/**
* Sets the bytecode compatibility mode
*
* @param version the bytecode compatibility mode
*/
public void setTargetBytecode(String version) {
if (CompilerConfiguration.PRE_JDK5.equals(version) || CompilerConfiguration.POST_JDK5.equals(version)) {
this.targetBytecode = version;
}
}
/**
* Retrieves the compiler bytecode compatibility mode.
*
* @return bytecode compatibility mode. Can be either <tt>1.5 or 1.4.
*/
public String getTargetBytecode() {
return this.targetBytecode;
}
/**
* Set the destination directory into which the Java source
* files should be compiled.
*
* @param destDir the destination director
*/
public void setDestdir(File destDir) {
this.destDir = destDir;
}
/**
* Gets the destination directory into which the java source files
* should be compiled.
*
* @return the destination directory
*/
public File getDestdir() {
return destDir;
}
/**
* Set the sourcepath to be used for this compilation.
*
* @param sourcepath the source path
*/
public void setSourcepath(Path sourcepath) {
if (compileSourcepath == null) {
compileSourcepath = sourcepath;
} else {
compileSourcepath.append(sourcepath);
}
}
/**
* Gets the sourcepath to be used for this compilation.
*
* @return the source path
*/
public Path getSourcepath() {
return compileSourcepath;
}
/**
* Adds a path to sourcepath.
*
* @return a sourcepath to be configured
*/
public Path createSourcepath() {
if (compileSourcepath == null) {
compileSourcepath = new Path(getProject());
}
return compileSourcepath.createPath();
}
/**
* Adds a reference to a source path defined elsewhere.
*
* @param r a reference to a source path
*/
public void setSourcepathRef(Reference r) {
createSourcepath().setRefid(r);
}
/**
* Set the classpath to be used for this compilation.
*
* @param classpath an Ant Path object containing the compilation classpath.
*/
public void setClasspath(Path classpath) {
if (compileClasspath == null) {
compileClasspath = classpath;
} else {
compileClasspath.append(classpath);
}
}
/**
* Gets the classpath to be used for this compilation.
*
* @return the class path
*/
public Path getClasspath() {
return compileClasspath;
}
/**
* Adds a path to the classpath.
*
* @return a class path to be configured
*/
public Path createClasspath() {
if (compileClasspath == null) {
compileClasspath = new Path(getProject());
}
return compileClasspath.createPath();
}
/**
* Adds a reference to a classpath defined elsewhere.
*
* @param r a reference to a classpath
*/
public void setClasspathRef(Reference r) {
createClasspath().setRefid(r);
}
/**
* If true, list the source files being handed off to the compiler.
* Default is false.
*
* @param list if true list the source files
*/
public void setListfiles(boolean list) {
listFiles = list;
}
/**
* Get the listfiles flag.
*
* @return the listfiles flag
*/
public boolean getListfiles() {
return listFiles;
}
/**
* Indicates whether the build will continue
* even if there are compilation errors; defaults to true.
*
* @param fail if true halt the build on failure
*/
public void setFailonerror(boolean fail) {
failOnError = fail;
}
/**
* @param proceed inverse of failonerror
*/
public void setProceed(boolean proceed) {
failOnError = !proceed;
}
/**
* Gets the failonerror flag.
*
* @return the failonerror flag
*/
public boolean getFailonerror() {
return failOnError;
}
/**
* The initial size of the memory for the underlying VM
* if javac is run externally; ignored otherwise.
* Defaults to the standard VM memory setting.
* (Examples: 83886080, 81920k, or 80m)
*
* @param memoryInitialSize string to pass to VM
*/
public void setMemoryInitialSize(String memoryInitialSize) {
this.memoryInitialSize = memoryInitialSize;
}
/**
* Gets the memoryInitialSize flag.
*
* @return the memoryInitialSize flag
*/
public String getMemoryInitialSize() {
return memoryInitialSize;
}
/**
* The maximum size of the memory for the underlying VM
* if javac is run externally; ignored otherwise.
* Defaults to the standard VM memory setting.
* (Examples: 83886080, 81920k, or 80m)
*
* @param memoryMaximumSize string to pass to VM
*/
public void setMemoryMaximumSize(String memoryMaximumSize) {
this.memoryMaximumSize = memoryMaximumSize;
}
/**
* Gets the memoryMaximumSize flag.
*
* @return the memoryMaximumSize flag
*/
public String getMemoryMaximumSize() {
return memoryMaximumSize;
}
/**
* Sets the file encoding for generated files.
*
* @param encoding the file encoding to be used
*/
public void setEncoding(String encoding) {
this.encoding = encoding;
}
/**
* Returns the encoding to be used when creating files.
*
* @return the file encoding to use
*/
public String getEncoding() {
return encoding;
}
/**
* Enable verbose compiling which will display which files
* are being compiled. Default is false.
*/
public void setVerbose(boolean verbose) {
this.verbose = verbose;
}
/**
* Gets the verbose flag.
*
* @return the verbose flag
*/
public boolean getVerbose() {
return verbose;
}
/**
* If true, includes Ant's own classpath in the classpath. Default is true.
* If setting to false and using groovyc in conjunction with AntBuilder
* you might need to explicitly add the Groovy jar(s) to the groovyc
* classpath using a nested classpath task.
*
* @param include if true, includes Ant's own classpath in the classpath
*/
public void setIncludeantruntime(boolean include) {
includeAntRuntime = include;
}
/**
* Gets whether or not the ant classpath is to be included in the classpath.
*
* @return whether or not the ant classpath is to be included in the classpath
*/
public boolean getIncludeantruntime() {
return includeAntRuntime;
}
/**
* If true, includes the Java runtime libraries in the classpath. Default is false.
*
* @param include if true, includes the Java runtime libraries in the classpath
*/
public void setIncludejavaruntime(boolean include) {
includeJavaRuntime = include;
}
/**
* Gets whether or not the java runtime should be included in this
* task's classpath.
*
* @return the includejavaruntime attribute
*/
public boolean getIncludejavaruntime() {
return includeJavaRuntime;
}
/**
* If true forks the Groovy compiler. Default is false.
*
* @param f "true|false|on|off|yes|no"
*/
public void setFork(boolean f) {
fork = f;
}
/**
* The JDK Home to use when forked.
*
* @param home the java.home value to use, default is the current JDK's home
*/
public void setJavaHome(File home) {
forkJDK = home;
}
/**
* The property to set on compilation success.
* This property will not be set if the compilation
* fails, or if there are no files to compile.
*
* @param updatedProperty the property name to use.
*/
public void setUpdatedProperty(String updatedProperty) {
this.updatedProperty = updatedProperty;
}
/**
* The property to set on compilation failure.
* This property will be set if the compilation
* fails.
*
* @param errorProperty the property name to use.
*/
public void setErrorProperty(String errorProperty) {
this.errorProperty = errorProperty;
}
/**
* This property controls whether to include the
* destination classes directory in the classpath
* given to the compiler.
* The default value is "true".
*
* @param includeDestClasses the value to use.
*/
public void setIncludeDestClasses(boolean includeDestClasses) {
this.includeDestClasses = includeDestClasses;
}
/**
* Get the value of the includeDestClasses property.
*
* @return the value.
*/
public boolean isIncludeDestClasses() {
return includeDestClasses;
}
/**
* Get the result of the groovyc task (success or failure).
*
* @return true if compilation succeeded, or
* was not necessary, false if the compilation failed.
*/
public boolean getTaskSuccess() {
return taskSuccess;
}
/*
public void setJointCompilationOptions(String options) {
String[] args = StringHelper.tokenizeUnquoted(options);
evalCompilerFlags(args);
}
*/
/**
* Add the configured nested javac task if present to initiate joint compilation.
*/
public void addConfiguredJavac(final Javac javac) {
this.javac = javac;
jointCompilation = true;
}
/**
* Enable compiler to report stack trace information if a problem occurs
* during compilation. Default is false.
*/
public void setStacktrace(boolean stacktrace) {
this.stacktrace = stacktrace;
}
/**
* Executes the task.
*
* @throws BuildException if an error occurs
*/
public void execute() throws BuildException {
checkParameters();
resetFileLists();
loadRegisteredScriptExtensions();
if (javac != null) jointCompilation = true;
// scan source directories and dest directory to build up
// compile lists
String[] list = src.list();
for (String filename : list) {
File file = getProject().resolveFile(filename);
if (!file.exists()) {
throw new BuildException("srcdir \"" + file.getPath() + "\" does not exist!", getLocation());
}
DirectoryScanner ds = this.getDirectoryScanner(file);
String[] files = ds.getIncludedFiles();
scanDir(file, destDir != null ? destDir : file, files);
}
compile();
if (updatedProperty != null
&& taskSuccess
&& compileList.length != 0) {
getProject().setNewProperty(updatedProperty, "true");
}
}
/**
* Clear the list of files to be compiled and copied..
*/
protected void resetFileLists() {
compileList = new File[0];
scriptExtensions = new LinkedHashSet<String>();
}
/**
* Scans the directory looking for source files to be compiled.
* The results are returned in the class variable compileList
*
* @param srcDir The source directory
* @param destDir The destination directory
* @param files An array of filenames
*/
protected void scanDir(File srcDir, File destDir, String[] files) {
GlobPatternMapper m = new GlobPatternMapper();
SourceFileScanner sfs = new SourceFileScanner(this);
File[] newFiles;
for (String extension : getScriptExtensions()) {
m.setFrom("*." + extension);
m.setTo("*.class");
newFiles = sfs.restrictAsFiles(files, srcDir, destDir, m);
addToCompileList(newFiles);
}
if (jointCompilation) {
m.setFrom("*.java");
m.setTo("*.class");
newFiles = sfs.restrictAsFiles(files, srcDir, destDir, m);
addToCompileList(newFiles);
}
}
protected void addToCompileList(File[] newFiles) {
if (newFiles.length > 0) {
File[] newCompileList = new File[compileList.length + newFiles.length];
System.arraycopy(compileList, 0, newCompileList, 0, compileList.length);
System.arraycopy(newFiles, 0, newCompileList, compileList.length, newFiles.length);
compileList = newCompileList;
}
}
/**
* Gets the list of files to be compiled.
*
* @return the list of files as an array
*/
public File[] getFileList() {
return compileList;
}
protected void checkParameters() throws BuildException {
if (src == null) {
throw new BuildException("srcdir attribute must be set!", getLocation());
}
if (src.size() == 0) {
throw new BuildException("srcdir attribute must be set!", getLocation());
}
if (destDir != null && !destDir.isDirectory()) {
throw new BuildException("destination directory \""
+ destDir
+ "\" does not exist or is not a directory",
getLocation());
}
if (encoding != null && !Charset.isSupported(encoding)) {
throw new BuildException("encoding \"" + encoding + "\" not supported.");
}
}
protected void compile() {
try {
if (compileList.length > 0) {
log("Compiling " + compileList.length + " source file"
+ (compileList.length == 1 ? "" : "s")
+ (destDir != null ? " to " + destDir : ""));
if (listFiles) {
for (File srcFile : compileList) {
log(srcFile.getAbsolutePath());
}
}
Path classpath = getClasspath() != null ? getClasspath() : new Path(getProject());
// extract joint options, some get pushed up...
List<String> jointOptions = new ArrayList();
if (jointCompilation) {
RuntimeConfigurable rc = javac.getRuntimeConfigurableWrapper();
for (Iterator i = rc.getAttributeMap().entrySet().iterator(); i.hasNext();) {
final Map.Entry e = (Map.Entry) i.next();
final String key = e.getKey().toString();
final String value = getProject().replaceProperties(e.getValue().toString());
if (key.contains("debug")) {
String level = "";
if (javac.getDebugLevel() != null) {
level = ":" + javac.getDebugLevel();
}
jointOptions.add("-Fg" + level);
} else if (key.contains("debugLevel")) {
// ignore, taken care of in debug
} else if ((key.contains("nowarn"))
|| (key.contains("verbose"))
|| (key.contains("deprecation"))) {
// false is default, so something to do only in true case
if ("on".equalsIgnoreCase(value) || "true".equalsIgnoreCase(value) || "yes".equalsIgnoreCase("value"))
jointOptions.add("-F" + key);
} else if (key.contains("classpath")) {
classpath.add(javac.getClasspath());
} else if ((key.contains("depend"))
|| (key.contains("extdirs"))
|| (key.contains("encoding"))
|| (key.contains("source"))
|| (key.contains("target"))
|| (key.contains("verbose"))) { // TODO remove extra verbose?
jointOptions.add("-J" + key + "=" + value);
} else {
log("The option " + key + " cannot be set on the contained <javac> element. The option will be ignored", Project.MSG_WARN);
}
// includes? excludes?
}
// ant's <javac> supports nested elements (there can be multiple of them)
// for additional options to be passed to javac.
Enumeration children = rc.getChildren();
while (children.hasMoreElements()) {
RuntimeConfigurable childrc = (RuntimeConfigurable) children.nextElement();
if (childrc.getElementTag().equals("compilerarg")) {
for (Iterator i = childrc.getAttributeMap().entrySet().iterator(); i.hasNext();) {
final Map.Entry e = (Map.Entry) i.next();
final String key = e.getKey().toString();
if (key.equals("value")) {
final String value = getProject().replaceProperties(e.getValue().toString());
StringTokenizer st = new StringTokenizer(value, " ");
while (st.hasMoreTokens()) {
String optionStr = st.nextToken();
jointOptions.add(optionStr.replace("-X", "-FX"));
}
}
}
}
}
}
String separator = System.getProperty("file.separator");
List<String> commandLineList = new ArrayList();
if (fork) {
String javaHome;
if (forkJDK != null) {
javaHome = forkJDK.getPath();
} else {
javaHome = System.getProperty("java.home");
}
if (includeAntRuntime) {
classpath.addExisting((new Path(getProject())).concatSystemClasspath("last"));
}
if (includeJavaRuntime) {
classpath.addJavaRuntime();
}
commandLineList.add(javaHome + separator + "bin" + separator + "java");
commandLineList.add("-classpath");
commandLineList.add(classpath.toString());
final String fileEncodingProp = System.getProperty("file.encoding");
if ((fileEncodingProp != null) && !fileEncodingProp.equals("")) {
commandLineList.add("-Dfile.encoding=" + fileEncodingProp);
}
if (targetBytecode != null) {
commandLineList.add("-Dgroovy.target.bytecode=" + targetBytecode);
}
if ((memoryInitialSize != null) && !memoryInitialSize.equals("")) {
commandLineList.add("-Xms" + memoryInitialSize);
}
if ((memoryMaximumSize != null) && !memoryMaximumSize.equals("")) {
commandLineList.add("-Xmx" + memoryMaximumSize);
}
if (!"*.groovy".equals(getScriptExtension())) {
String tmpExtension = getScriptExtension();
if (tmpExtension.startsWith("*.")) tmpExtension = tmpExtension.substring(1);
commandLineList.add("-Dgroovy.default.scriptExtension=" + tmpExtension);
}
commandLineList.add("org.codehaus.groovy.tools.FileSystemCompiler");
}
commandLineList.add("--classpath");
commandLineList.add(classpath.toString());
if (jointCompilation) {
commandLineList.add("-j");
commandLineList.addAll(jointOptions);
}
commandLineList.add("-d");
commandLineList.add(destDir.getPath());
if (encoding != null) {
commandLineList.add("--encoding");
commandLineList.add(encoding);
}
if (stacktrace) {
commandLineList.add("-e");
}
// check to see if an external file is needed
int count = 0;
if (fork) {
for (File srcFile : compileList) {
count += srcFile.getPath().length();
}
for (Object commandLineArg : commandLineList) {
count += commandLineArg.toString().length();
}
count += compileList.length;
count += commandLineList.size();
}
// 32767 is the command line length limit on Windows
if (fork && (count > 32767)) {
try {
File tempFile = File.createTempFile("groovyc-files-", ".txt");
temporaryFiles.add(tempFile);
PrintWriter pw = new PrintWriter(new FileWriter(tempFile));
for (File srcFile : compileList) {
pw.println(srcFile.getPath());
}
pw.close();
commandLineList.add("@" + tempFile.getPath());
} catch (IOException e) {
log("Error creating file list", e, Project.MSG_ERR);
}
} else {
for (File srcFile : compileList) {
commandLineList.add(srcFile.getPath());
}
}
final String[] commandLine = new String[commandLineList.size()];
for (int i = 0; i < commandLine.length; ++i) {
commandLine[i] = commandLineList.get(i);
}
log("Compilation arguments:", Project.MSG_VERBOSE);
log(DefaultGroovyMethods.join(commandLine, "\n"), Project.MSG_VERBOSE);
if (fork) {
// use the main method in FileSystemCompiler
final Execute executor = new Execute(); // new LogStreamHandler ( attributes , Project.MSG_INFO , Project.MSG_WARN ) ) ;
executor.setAntRun(getProject());
executor.setWorkingDirectory(getProject().getBaseDir());
executor.setCommandline(commandLine);
try {
executor.execute();
} catch (final IOException ioe) {
throw new BuildException("Error running forked groovyc.", ioe);
}
final int returnCode = executor.getExitValue();
if (returnCode != 0) {
if (failOnError) {
throw new BuildException("Forked groovyc returned error code: " + returnCode);
} else {
log("Forked groovyc returned error code: " + returnCode, Project.MSG_ERR);
}
}
} else {
// hand crank it so we can add our own compiler configuration
try {
Options options = FileSystemCompiler.createCompilationOptions();
PosixParser cliParser = new PosixParser();
CommandLine cli;
cli = cliParser.parse(options, commandLine);
configuration = FileSystemCompiler.generateCompilerConfigurationFromOptions(cli);
configuration.setScriptExtensions(getScriptExtensions());
String tmpExtension = getScriptExtension();
if (tmpExtension.startsWith("*.")) tmpExtension = tmpExtension.substring(1);
configuration.setDefaultScriptExtension(tmpExtension);
// Load the file name list
String[] filenames = FileSystemCompiler.generateFileNamesFromOptions(cli);
boolean fileNameErrors = filenames == null;
fileNameErrors = fileNameErrors && !FileSystemCompiler.validateFiles(filenames);
if (targetBytecode != null) {
configuration.setTargetBytecode(targetBytecode);
}
if (!fileNameErrors) {
FileSystemCompiler.doCompilation(configuration, makeCompileUnit(), filenames);
}
} catch (Exception re) {
Throwable t = re;
if ((re.getClass() == RuntimeException.class) && (re.getCause() != null)) {
// unwrap to the real exception
t = re.getCause();
}
StringWriter writer = new StringWriter();
new ErrorReporter(t, false).write(new PrintWriter(writer));
String message = writer.toString();
if (failOnError) {
log(message, Project.MSG_INFO);
throw new BuildException("Compilation Failed", t, getLocation());
} else {
log(message, Project.MSG_ERR);
}
}
}
}
} finally {
for (File temporaryFile : temporaryFiles) {
try {
FileSystemCompiler.deleteRecursive(temporaryFile);
} catch (Throwable t) {
System.err.println("error: could not delete temp files - " + temporaryFile.getPath());
}
}
}
}
protected CompilationUnit makeCompileUnit() {
Map<String, Object> options = configuration.getJointCompilationOptions();
if (options != null) {
if (keepStubs) {
options.put("keepStubs", Boolean.TRUE);
}
if (stubDir != null) {
options.put("stubDir", stubDir);
} else {
try {
File tempStubDir = FileSystemCompiler.createTempDir();
temporaryFiles.add(tempStubDir);
options.put("stubDir", tempStubDir);
} catch (IOException ioe) {
throw new BuildException(ioe);
}
}
return new JavaAwareCompilationUnit(configuration, buildClassLoaderFor());
} else {
return new CompilationUnit(configuration, null, buildClassLoaderFor());
}
}
protected GroovyClassLoader buildClassLoaderFor() {
ClassLoader parent = getIncludeantruntime()
? getClass().getClassLoader()
: new AntClassLoader(new RootLoader(new URL[0], null), getProject(), getClasspath());
if (parent instanceof AntClassLoader) {
AntClassLoader antLoader = (AntClassLoader) parent;
String[] pathElm = antLoader.getClasspath().split(File.pathSeparator);
List<String> classpath = configuration.getClasspath();
/*
* Iterate over the classpath provided to groovyc, and add any missing path
* entries to the AntClassLoader. This is a workaround, since for some reason
* 'directory' classpath entries were not added to the AntClassLoader' classpath.
*/
for (String cpEntry : classpath) {
boolean found = false;
for (String path : pathElm) {
if (cpEntry.equals(path)) {
found = true;
break;
}
}
/*
* fix for GROOVY-2284
* seems like AntClassLoader doesn't check if the file
* may not exist in the classpath yet
*/
if (!found && new File(cpEntry).exists())
antLoader.addPathElement(cpEntry);
}
}
GroovyClassLoader loader = new GroovyClassLoader(parent, configuration);
// in command line we don't need to do script lookups
loader.setResourceLoader(new GroovyResourceLoader() {
public URL loadGroovySource(String filename) throws MalformedURLException {
return null;
}
});
return loader;
}
/**
* Set the stub directory into which the Java source stub
* files should be generated. The directory need not exist
* and will not be deleted automatically - though its contents
* will be cleared unless 'keepStubs' is true. Ignored when forked.
*
* @param stubDir the stub directory
*/
public void setStubdir(File stubDir) {
jointCompilation = true;
this.stubDir = stubDir;
}
/**
* Gets the stub directory into which the Java source stub
* files should be generated
*
* @return the stub directory
*/
public File getStubdir() {
return stubDir;
}
/**
* Set the keepStubs flag. Defaults to false. Set to true for debugging.
* Ignored when forked.
*
* @param keepStubs should stubs be retained
*/
public void setKeepStubs(boolean keepStubs) {
this.keepStubs = keepStubs;
}
/**
* Gets the keepStubs flag.
*
* @return the keepStubs flag
*/
public boolean getKeepStubs() {
return keepStubs;
}
private Set<String> getScriptExtensions() {
return scriptExtensions;
}
private void loadRegisteredScriptExtensions() {
if (scriptExtensions.isEmpty()) {
scriptExtensions.add(getScriptExtension().substring(2)); // first extension will be the one set explicitly on <groovyc>
Path classpath = getClasspath() != null ? getClasspath() : new Path(getProject());
final String[] pe = classpath.list();
final GroovyClassLoader loader = new GroovyClassLoader(getClass().getClassLoader());
for (String file : pe) {
loader.addClasspath(file);
}
scriptExtensions.addAll(SourceExtensionHandler.getRegisteredExtensions(loader));
}
}
}
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