| /* |
| * Copyright 1999-2004 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.cocoon.components.language.programming.java; |
| |
| import org.apache.avalon.excalibur.pool.Recyclable; |
| import org.apache.cocoon.components.language.programming.CompilerError; |
| import org.apache.cocoon.components.language.programming.LanguageCompiler; |
| import org.apache.cocoon.util.ClassUtils; |
| |
| import org.eclipse.jdt.core.compiler.IProblem; |
| import org.eclipse.jdt.internal.compiler.ClassFile; |
| import org.eclipse.jdt.internal.compiler.CompilationResult; |
| import org.eclipse.jdt.internal.compiler.Compiler; |
| import org.eclipse.jdt.internal.compiler.DefaultErrorHandlingPolicies; |
| import org.eclipse.jdt.internal.compiler.ICompilerRequestor; |
| import org.eclipse.jdt.internal.compiler.IErrorHandlingPolicy; |
| import org.eclipse.jdt.internal.compiler.IProblemFactory; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.eclipse.jdt.internal.compiler.env.ICompilationUnit; |
| import org.eclipse.jdt.internal.compiler.env.INameEnvironment; |
| import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer; |
| import org.eclipse.jdt.internal.compiler.impl.CompilerOptions; |
| import org.eclipse.jdt.internal.compiler.problem.DefaultProblemFactory; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.BufferedReader; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.util.HashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| |
| /** |
| * Eclipse Java Compiler |
| * |
| * @version CVS $Id: EclipseJavaCompiler.java,v 1.5 2004/03/05 13:02:48 bdelacretaz Exp $ |
| */ |
| public class EclipseJavaCompiler implements LanguageCompiler, Recyclable { |
| |
| static boolean target14; |
| static boolean source14; |
| |
| static { |
| // Detect JDK version we are running under |
| String version = System.getProperty("java.specification.version"); |
| try { |
| source14 = target14 = Float.parseFloat(version) >= 1.4; |
| } catch (NumberFormatException e) { |
| source14 = target14 = false; |
| } |
| } |
| |
| boolean debug; |
| |
| String sourceDir; |
| String sourceFile; |
| String destDir; |
| String sourceEncoding; |
| |
| List errors = new LinkedList(); |
| |
| |
| public EclipseJavaCompiler() { |
| this.debug = true; |
| source14 = true; |
| } |
| |
| public void recycle() { |
| sourceFile = null; |
| sourceDir = null; |
| destDir = null; |
| sourceEncoding = null; |
| errors.clear(); |
| } |
| |
| public void setFile(String file) { |
| // This is the absolute path to the file to be compiled |
| this.sourceFile = file; |
| } |
| |
| public void setSource(String srcDir) { |
| // This is the "sourcepath" of the file to be |
| // compiled |
| this.sourceDir = srcDir; |
| } |
| |
| public void setDestination(String destDir) { |
| // This is the output directory) |
| this.destDir = destDir; |
| } |
| |
| public void setEncoding(String encoding) { |
| this.sourceEncoding = encoding; |
| } |
| |
| /** |
| * Eclipse Java compiler ignores class path setting and uses current |
| * Java class loader |
| * @param cp classpath to be ignored |
| */ |
| public void setClasspath(String cp) { |
| // Not used |
| } |
| |
| private String makeClassName(String fileName) throws IOException { |
| File origFile = new File(fileName); |
| String canonical = null; |
| if (origFile.exists()) { |
| canonical = origFile.getCanonicalPath().replace('\\', '/'); |
| } |
| String str = fileName; |
| str = str.replace('\\', '/'); |
| if (sourceDir != null) { |
| String prefix = |
| new File(sourceDir).getCanonicalPath().replace('\\', '/'); |
| if (canonical != null) { |
| if (canonical.startsWith(prefix)) { |
| String result = canonical.substring(prefix.length() + 1, |
| canonical.length() -5); |
| result = result.replace('/', '.'); |
| return result; |
| } |
| } else { |
| File t = new File(sourceDir, fileName); |
| if (t.exists()) { |
| str = t.getCanonicalPath().replace('\\', '/'); |
| String result = str.substring(prefix.length()+1, |
| str.length() - 5).replace('/', '.'); |
| return result; |
| } |
| } |
| } |
| if (fileName.endsWith(".java")) { |
| fileName = fileName.substring(0, fileName.length() - 5); |
| } |
| fileName = fileName.replace('\\', '.'); |
| return fileName.replace('/', '.'); |
| } |
| |
| public boolean compile() throws IOException { |
| final String targetClassName = makeClassName(sourceFile); |
| final ClassLoader classLoader = ClassUtils.getClassLoader(); |
| String[] fileNames = new String[] {sourceFile}; |
| String[] classNames = new String[] {targetClassName}; |
| class CompilationUnit implements ICompilationUnit { |
| |
| String className; |
| String sourceFile; |
| |
| CompilationUnit(String sourceFile, String className) { |
| this.className = className; |
| this.sourceFile = sourceFile; |
| } |
| |
| public char[] getFileName() { |
| return className.toCharArray(); |
| } |
| |
| public char[] getContents() { |
| char[] result = null; |
| try { |
| Reader reader = new BufferedReader(new FileReader(sourceFile)); |
| if (reader != null) { |
| char[] chars = new char[8192]; |
| StringBuffer buf = new StringBuffer(); |
| int count; |
| while ((count = reader.read(chars, 0, |
| chars.length)) > 0) { |
| buf.append(chars, 0, count); |
| } |
| result = new char[buf.length()]; |
| buf.getChars(0, result.length, result, 0); |
| } |
| } catch (IOException e) { |
| handleError(className, -1, -1, |
| e.getMessage()); |
| //e.printStackTrace(); |
| } |
| return result; |
| } |
| |
| public char[] getMainTypeName() { |
| int dot = className.lastIndexOf('.'); |
| if (dot > 0) { |
| return className.substring(dot + 1).toCharArray(); |
| } |
| return className.toCharArray(); |
| } |
| |
| public char[][] getPackageName() { |
| StringTokenizer izer = |
| new StringTokenizer(className, "."); |
| char[][] result = new char[izer.countTokens()-1][]; |
| for (int i = 0; i < result.length; i++) { |
| String tok = izer.nextToken(); |
| result[i] = tok.toCharArray(); |
| } |
| return result; |
| } |
| } |
| |
| |
| final INameEnvironment env = new INameEnvironment() { |
| |
| public NameEnvironmentAnswer |
| findType(char[][] compoundTypeName) { |
| String result = ""; |
| String sep = ""; |
| for (int i = 0; i < compoundTypeName.length; i++) { |
| result += sep; |
| result += new String(compoundTypeName[i]); |
| sep = "."; |
| } |
| return findType(result); |
| } |
| |
| public NameEnvironmentAnswer |
| findType(char[] typeName, |
| char[][] packageName) { |
| String result = ""; |
| String sep = ""; |
| for (int i = 0; i < packageName.length; i++) { |
| result += sep; |
| result += new String(packageName[i]); |
| sep = "."; |
| } |
| result += sep; |
| result += new String(typeName); |
| return findType(result); |
| } |
| |
| private NameEnvironmentAnswer findType(String className) { |
| |
| try { |
| if (className.equals(targetClassName)) { |
| ICompilationUnit compilationUnit = |
| new CompilationUnit(sourceFile, className); |
| return |
| new NameEnvironmentAnswer(compilationUnit); |
| } |
| String resourceName = |
| className.replace('.', '/') + ".class"; |
| InputStream is = |
| classLoader.getResourceAsStream(resourceName); |
| if (is != null) { |
| byte[] classBytes; |
| byte[] buf = new byte[8192]; |
| ByteArrayOutputStream baos = |
| new ByteArrayOutputStream(buf.length); |
| int count; |
| while ((count = is.read(buf, 0, buf.length)) > 0) { |
| baos.write(buf, 0, count); |
| } |
| baos.flush(); |
| classBytes = baos.toByteArray(); |
| char[] fileName = className.toCharArray(); |
| ClassFileReader classFileReader = |
| new ClassFileReader(classBytes, fileName, |
| true); |
| return |
| new NameEnvironmentAnswer(classFileReader); |
| } |
| } catch (IOException exc) { |
| handleError(className, -1, -1, |
| exc.getMessage()); |
| } catch (org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException exc) { |
| handleError(className, -1, -1, |
| exc.getMessage()); |
| } |
| return null; |
| } |
| |
| private boolean isPackage(String result) { |
| if (result.equals(targetClassName)) { |
| return false; |
| } |
| String resourceName = result.replace('.', '/') + ".class"; |
| InputStream is = |
| classLoader.getResourceAsStream(resourceName); |
| return is == null; |
| } |
| |
| public boolean isPackage(char[][] parentPackageName, |
| char[] packageName) { |
| String result = ""; |
| String sep = ""; |
| if (parentPackageName != null) { |
| for (int i = 0; i < parentPackageName.length; i++) { |
| result += sep; |
| String str = new String(parentPackageName[i]); |
| result += str; |
| sep = "."; |
| } |
| } |
| String str = new String(packageName); |
| if (Character.isUpperCase(str.charAt(0))) { |
| if (!isPackage(result)) { |
| return false; |
| } |
| } |
| result += sep; |
| result += str; |
| return isPackage(result); |
| } |
| |
| public void cleanup() { |
| } |
| |
| }; |
| final IErrorHandlingPolicy policy = |
| DefaultErrorHandlingPolicies.proceedWithAllProblems(); |
| final Map settings = new HashMap(); |
| settings.put(CompilerOptions.OPTION_LineNumberAttribute, |
| CompilerOptions.GENERATE); |
| settings.put(CompilerOptions.OPTION_SourceFileAttribute, |
| CompilerOptions.GENERATE); |
| settings.put(CompilerOptions.OPTION_ReportDeprecation, |
| CompilerOptions.IGNORE); |
| if (sourceEncoding != null) { |
| settings.put(CompilerOptions.OPTION_Encoding, |
| sourceEncoding); |
| } |
| if (debug) { |
| settings.put(CompilerOptions.OPTION_LocalVariableAttribute, |
| CompilerOptions.GENERATE); |
| } |
| if (source14) { |
| settings.put(CompilerOptions.OPTION_Source, |
| CompilerOptions.VERSION_1_4); |
| } |
| if (target14) { |
| settings.put(CompilerOptions.OPTION_TargetPlatform, |
| CompilerOptions.VERSION_1_4); |
| } |
| final IProblemFactory problemFactory = |
| new DefaultProblemFactory(Locale.getDefault()); |
| |
| final ICompilerRequestor requestor = new ICompilerRequestor() { |
| public void acceptResult(CompilationResult result) { |
| try { |
| if (result.hasProblems()) { |
| IProblem[] problems = result.getProblems(); |
| for (int i = 0; i < problems.length; i++) { |
| IProblem problem = problems[i]; |
| String name = |
| new String(problems[i].getOriginatingFileName()); |
| handleError(name, |
| problem.getSourceLineNumber(), |
| -1, |
| problem.getMessage()); |
| } |
| } else { |
| ClassFile[] classFiles = result.getClassFiles(); |
| for (int i = 0; i < classFiles.length; i++) { |
| ClassFile classFile = classFiles[i]; |
| char[][] compoundName = |
| classFile.getCompoundName(); |
| String className = ""; |
| String sep = ""; |
| for (int j = 0; |
| j < compoundName.length; j++) { |
| className += sep; |
| className += new String(compoundName[j]); |
| sep = "."; |
| } |
| byte[] bytes = classFile.getBytes(); |
| String outFile = destDir + "/" + |
| className.replace('.', '/') + ".class"; |
| FileOutputStream fout = |
| new FileOutputStream(outFile); |
| BufferedOutputStream bos = |
| new BufferedOutputStream(fout); |
| bos.write(bytes); |
| bos.close(); |
| } |
| } |
| } catch (IOException exc) { |
| exc.printStackTrace(); |
| } |
| } |
| }; |
| ICompilationUnit[] compilationUnits = |
| new ICompilationUnit[classNames.length]; |
| for (int i = 0; i < compilationUnits.length; i++) { |
| String className = classNames[i]; |
| compilationUnits[i] = new CompilationUnit(fileNames[i], className); |
| } |
| Compiler compiler = new Compiler(env, |
| policy, |
| settings, |
| requestor, |
| problemFactory); |
| compiler.compile(compilationUnits); |
| return errors.size() == 0; |
| } |
| |
| void handleError(String className, int line, int column, Object errorMessage) { |
| String fileName = |
| className.replace('.', File.separatorChar) + ".java"; |
| if (column < 0) column = 0; |
| errors.add(new CompilerError(fileName, |
| true, |
| line, |
| column, |
| line, |
| column, |
| errorMessage.toString())); |
| } |
| |
| public List getErrors() throws IOException { |
| return errors; |
| } |
| } |