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/*
 * Copyright  2000-2004 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;

import java.io.File;
import java.io.IOException;
import java.rmi.Remote;
import java.util.Vector;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.rmic.RmicAdapter;
import org.apache.tools.ant.taskdefs.rmic.RmicAdapterFactory;
import org.apache.tools.ant.types.FilterSetCollection;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.util.FileNameMapper;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.ant.util.SourceFileScanner;
import org.apache.tools.ant.util.facade.FacadeTaskHelper;

/**
 * Runs the rmic compiler against classes.

*

Rmic can be run on a single class (as specified with the classname * attribute) or a number of classes at once (all classes below base that * are neither _Stub nor _Skel classes). If you want to rmic a single * class and this class is a class nested into another class, you have to * specify the classname in the form Outer$$Inner instead of * Outer.Inner.

*

It is possible to refine the set of files that are being rmiced. This can * be done with the includes, includesfile, excludes, * excludesfile and defaultexcludes * attributes. With the includes or includesfile attribute you * specify the files you want to have included by using patterns. The * exclude or excludesfile attribute is used to specify * the files you want to have excluded. This is also done with patterns. And * finally with the defaultexcludes attribute, you can specify whether * you want to use default exclusions or not. See the section on * directory based tasks, on how the * inclusion/exclusion of files works, and how to write patterns.

*

This task forms an implicit FileSet and * supports all attributes of <fileset> * (dir becomes base) as well as the nested * <include>, <exclude> and * <patternset> elements.

*

It is possible to use different compilers. This can be selected * with the "build.rmic" property or the compiler * attribute. There are three choices:

*
    *
  • sun (the standard compiler of the JDK)
  • *
  • kaffe (the standard compiler of * {@link Kaffe})
  • *
  • weblogic
  • *
* *

The miniRMI * project contains a compiler implementation for this task as well, * please consult miniRMI's documentation to learn how to use it.

* * @since Ant 1.1 * * @ant.task category="java" */ public class Rmic extends MatchingTask { private static final String FAIL_MSG = "Rmic failed; see the compiler error output for details."; private File baseDir; private String classname; private File sourceBase; private String stubVersion; private Path compileClasspath; private Path extDirs; private boolean verify = false; private boolean filtering = false; private boolean iiop = false; private String iiopOpts; private boolean idl = false; private String idlOpts; private boolean debug = false; private boolean includeAntRuntime = true; private boolean includeJavaRuntime = false; private Vector compileList = new Vector(); private ClassLoader loader = null; private FileUtils fileUtils = FileUtils.newFileUtils(); private FacadeTaskHelper facade; /** * Constructor for Rmic. */ public Rmic() { try { Class.forName("kaffe.rmi.rmic.RMIC"); facade = new FacadeTaskHelper("kaffe"); } catch (ClassNotFoundException cnfe) { facade = new FacadeTaskHelper("sun"); } } /** * Sets the location to store the compiled files; required * @param base the location to store the compiled files */ public void setBase(File base) { this.baseDir = base; } /** * Gets the base directory to output generated class. * @return the location of the compiled files */ public File getBase() { return this.baseDir; } /** * Sets the class to run rmic against; * optional * @param classname the name of the class for rmic to create code for */ public void setClassname(String classname) { this.classname = classname; } /** * Gets the class name to compile. * @return the name of the class to compile */ public String getClassname() { return classname; } /** * optional directory to save generated source files to. * @param sourceBase the directory to save source files to. */ public void setSourceBase(File sourceBase) { this.sourceBase = sourceBase; } /** * Gets the source dirs to find the source java files. * @return sourceBase the directory containing the source files. */ public File getSourceBase() { return sourceBase; } /** * Specify the JDK version for the generated stub code. * Specify "1.1" to pass the "-v1.1" option to rmic. * @param stubVersion the JDK version */ public void setStubVersion(String stubVersion) { this.stubVersion = stubVersion; } /** * Gets the JDK version for the generated stub code. * @return stubVersion */ public String getStubVersion() { return stubVersion; } /** * Sets token filtering [optional], default=false * @param filter turn on token filtering */ public void setFiltering(boolean filter) { this.filtering = filter; } /** * Gets whether token filtering is set * @return filtering */ public boolean getFiltering() { return filtering; } /** * Generate debug info (passes -g to rmic); * optional, defaults to false * @param debug turn on debug info */ public void setDebug(boolean debug) { this.debug = debug; } /** * Gets the debug flag. * @return debug */ public boolean getDebug() { return debug; } /** * Set the classpath to be used for this compilation. * @param classpath the classpath used for this compilation */ public void setClasspath(Path classpath) { if (compileClasspath == null) { compileClasspath = classpath; } else { compileClasspath.append(classpath); } } /** * Creates a nested classpath element. * @return classpath */ public Path createClasspath() { if (compileClasspath == null) { compileClasspath = new Path(getProject()); } return compileClasspath.createPath(); } /** * Adds to the classpath a reference to * a <path> defined elsewhere. * @param pathRef the reference to add to the classpath */ public void setClasspathRef(Reference pathRef) { createClasspath().setRefid(pathRef); } /** * Gets the classpath. * @return the classpath */ public Path getClasspath() { return compileClasspath; } /** * Flag to enable verification so that the classes * found by the directory match are * checked to see if they implement java.rmi.Remote. * optional; This defaults to false if not set. * @param verify turn on verification for classes */ public void setVerify(boolean verify) { this.verify = verify; } /** * Get verify flag. * @return verify */ public boolean getVerify() { return verify; } /** * Indicates that IIOP compatible stubs should * be generated; optional, defaults to false * if not set. * @param iiop generate IIOP compatible stubs */ public void setIiop(boolean iiop) { this.iiop = iiop; } /** * Gets iiop flags. * @return iiop */ public boolean getIiop() { return iiop; } /** * Set additional arguments for iiop * @param iiopOpts additional arguments for iiop */ public void setIiopopts(String iiopOpts) { this.iiopOpts = iiopOpts; } /** * Gets additional arguments for iiop. * @return iiopOpts */ public String getIiopopts() { return iiopOpts; } /** * Indicates that IDL output should be * generated. This defaults to false * if not set. * @param idl generate IDL output */ public void setIdl(boolean idl) { this.idl = idl; } /** * Gets IDL flags. * @return the idl flag */ public boolean getIdl() { return idl; } /** * pass additional arguments for IDL compile * @param idlOpts additional IDL arguments */ public void setIdlopts(String idlOpts) { this.idlOpts = idlOpts; } /** * Gets additional arguments for idl compile. * @return the idl options */ public String getIdlopts() { return idlOpts; } /** * Gets file list to compile. * @return the list of files to compile. */ public Vector getFileList() { return compileList; } /** * Sets whether or not to include ant's own classpath in this task's * classpath. * Optional; default is true. * @param include if true include ant's classpath */ public void setIncludeantruntime(boolean include) { includeAntRuntime = include; } /** * Gets whether or not the ant classpath is to be included in the * task's classpath. * @return true if ant's classpath is to be included */ public boolean getIncludeantruntime() { return includeAntRuntime; } /** * task's classpath. * Enables or disables including the default run-time * libraries from the executing VM; optional, * defaults to false * @param include if true include default run-time libraries */ public void setIncludejavaruntime(boolean include) { includeJavaRuntime = include; } /** * Gets whether or not the java runtime should be included in this * task's classpath. * @return true if default run-time libraries are included */ public boolean getIncludejavaruntime() { return includeJavaRuntime; } /** * Sets the extension directories that will be used during the * compilation; optional. * @param extDirs the extension directories to be used */ public void setExtdirs(Path extDirs) { if (this.extDirs == null) { this.extDirs = extDirs; } else { this.extDirs.append(extDirs); } } /** * Maybe creates a nested extdirs element. * @return path object to be configured with the extension directories */ public Path createExtdirs() { if (extDirs == null) { extDirs = new Path(getProject()); } return extDirs.createPath(); } /** * Gets the extension directories that will be used during the * compilation. * @return the extension directories to be used */ public Path getExtdirs() { return extDirs; } /** * @return the compile list. */ public Vector getCompileList() { return compileList; } /** * Sets the compiler implementation to use; optional, * defaults to the value of the build.rmic property, * or failing that, default compiler for the current VM * @param compiler the compiler implemention to use * @since Ant 1.5 */ public void setCompiler(String compiler) { if (compiler.length() > 0) { facade.setImplementation(compiler); } } /** * get the name of the current compiler * @return the name of the compiler * @since Ant 1.5 */ public String getCompiler() { facade.setMagicValue(getProject().getProperty("build.rmic")); return facade.getImplementation(); } /** * Adds an implementation specific command line argument. * @return an object to be configured with a command line argument * @since Ant 1.5 */ public ImplementationSpecificArgument createCompilerArg() { ImplementationSpecificArgument arg = new ImplementationSpecificArgument(); facade.addImplementationArgument(arg); return arg; } /** * Get the additional implementation specific command line arguments. * @return array of command line arguments, guaranteed to be non-null. * @since Ant 1.5 */ public String[] getCurrentCompilerArgs() { getCompiler(); return facade.getArgs(); } /** * execute by creating an instance of an implementation * class and getting to do the work */ public void execute() throws BuildException { if (baseDir == null) { throw new BuildException("base attribute must be set!", getLocation()); } if (!baseDir.exists()) { throw new BuildException("base does not exist!", getLocation()); } if (verify) { log("Verify has been turned on.", Project.MSG_VERBOSE); } RmicAdapter adapter = RmicAdapterFactory.getRmic(getCompiler(), this); // now we need to populate the compiler adapter adapter.setRmic(this); Path classpath = adapter.getClasspath(); loader = getProject().createClassLoader(classpath); try { // scan base dirs to build up compile lists only if a // specific classname is not given if (classname == null) { DirectoryScanner ds = this.getDirectoryScanner(baseDir); String[] files = ds.getIncludedFiles(); scanDir(baseDir, files, adapter.getMapper()); } else { // otherwise perform a timestamp comparison - at least scanDir(baseDir, new String[] {classname.replace('.', File.separatorChar) + ".class"}, adapter.getMapper()); } int fileCount = compileList.size(); if (fileCount > 0) { log("RMI Compiling " + fileCount + " class" + (fileCount > 1 ? "es" : "") + " to " + baseDir, Project.MSG_INFO); // finally, lets execute the compiler!! if (!adapter.execute()) { throw new BuildException(FAIL_MSG, getLocation()); } } /* * Move the generated source file to the base directory. If * base directory and sourcebase are the same, the generated * sources are already in place. */ if (null != sourceBase && !baseDir.equals(sourceBase) && fileCount > 0) { if (idl) { log("Cannot determine sourcefiles in idl mode, ", Project.MSG_WARN); log("sourcebase attribute will be ignored.", Project.MSG_WARN); } else { for (int j = 0; j < fileCount; j++) { moveGeneratedFile(baseDir, sourceBase, (String) compileList.elementAt(j), adapter); } } } } finally { compileList.removeAllElements(); } } /** * Move the generated source file(s) to the base directory * * @throws org.apache.tools.ant.BuildException When error * copying/removing files. */ private void moveGeneratedFile (File baseDir, File sourceBaseFile, String classname, RmicAdapter adapter) throws BuildException { String classFileName = classname.replace('.', File.separatorChar) + ".class"; String[] generatedFiles = adapter.getMapper().mapFileName(classFileName); for (int i = 0; i < generatedFiles.length; i++) { final String generatedFile = generatedFiles[i]; if (!generatedFile.endsWith(".class")) { // don't know how to handle that - a IDL file doesn't // have a corresponding Java source for example. continue; } final int pos = generatedFile.length() - ".class".length(); String sourceFileName = generatedFile.substring(0, pos) + ".java"; File oldFile = new File(baseDir, sourceFileName); if (!oldFile.exists()) { // no source file generated, nothing to move continue; } File newFile = new File(sourceBaseFile, sourceFileName); try { if (filtering) { fileUtils.copyFile(oldFile, newFile, new FilterSetCollection(getProject() .getGlobalFilterSet())); } else { fileUtils.copyFile(oldFile, newFile); } oldFile.delete(); } catch (IOException ioe) { String msg = "Failed to copy " + oldFile + " to " + newFile + " due to " + ioe.getMessage(); throw new BuildException(msg, ioe, getLocation()); } } } /** * Scans the directory looking for class files to be compiled. * The result is returned in the class variable compileList. * @param baseDir the base direction * @param files the list of files to scan * @param mapper the mapper of files to target files */ protected void scanDir(File baseDir, String[] files, FileNameMapper mapper) { String[] newFiles = files; if (idl) { log("will leave uptodate test to rmic implementation in idl mode.", Project.MSG_VERBOSE); } else if (iiop && iiopOpts != null && iiopOpts.indexOf("-always") > -1) { log("no uptodate test as -always option has been specified", Project.MSG_VERBOSE); } else { SourceFileScanner sfs = new SourceFileScanner(this); newFiles = sfs.restrict(files, baseDir, baseDir, mapper); } for (int i = 0; i < newFiles.length; i++) { String classname = newFiles[i].replace(File.separatorChar, '.'); classname = classname.substring(0, classname.lastIndexOf(".class")); compileList.addElement(classname); } } /** * Load named class and test whether it can be rmic'ed * @param classname the name of the class to be tested * @return true if the class can be rmic'ed */ public boolean isValidRmiRemote(String classname) { try { Class testClass = loader.loadClass(classname); // One cannot RMIC an interface for "classic" RMI (JRMP) if (testClass.isInterface() && !iiop && !idl) { return false; } return isValidRmiRemote(testClass); } catch (ClassNotFoundException e) { log("Unable to verify class " + classname + ". It could not be found.", Project.MSG_WARN); } catch (NoClassDefFoundError e) { log("Unable to verify class " + classname + ". It is not defined.", Project.MSG_WARN); } catch (Throwable t) { log("Unable to verify class " + classname + ". Loading caused Exception: " + t.getMessage(), Project.MSG_WARN); } // we only get here if an exception has been thrown return false; } /** * Returns the topmost interface that extends Remote for a given * class - if one exists. * @param testClass the class to be tested * @return the topmost interface that extends Remote, or null if there * is none. */ public Class getRemoteInterface(Class testClass) { if (Remote.class.isAssignableFrom(testClass)) { Class [] interfaces = testClass.getInterfaces(); if (interfaces != null) { for (int i = 0; i < interfaces.length; i++) { if (Remote.class.isAssignableFrom(interfaces[i])) { return interfaces[i]; } } } } return null; } /** * Check to see if the class or (super)interfaces implement * java.rmi.Remote. */ private boolean isValidRmiRemote (Class testClass) { return getRemoteInterface(testClass) != null; } /** * Classloader for the user-specified classpath. * @return the classloader */ public ClassLoader getLoader() { return loader; } /** * Adds an "compiler" attribute to Commandline$Attribute used to * filter command line attributes based on the current * implementation. */ public class ImplementationSpecificArgument extends org.apache.tools.ant.util.facade.ImplementationSpecificArgument { /** * Only pass the specified argument if the * chosen compiler implementation matches the * value of this attribute. Legal values are * the same as those in the above list of * valid compilers.) * @param impl the compiler to be used. */ public void setCompiler(String impl) { super.setImplementation(impl); } } }




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