Examples with CompilationUnit org.apache.sling.commons.compiler.CompilationUnit used on opensource projects

Example 1 with CompilationUnit

use of org.apache.sling.commons.compiler.CompilationUnit in project sling by apache.

the class CompilerJava5Test method testJava5Support.

public void testJava5Support() throws Exception {
    String sourceFile = "Java5Test";
    CompilationUnit unit = createCompileUnit(sourceFile);
    final Options options = new Options();
    options.put(Options.KEY_SOURCE_VERSION, Options.VERSION_1_5);
    options.put(Options.KEY_CLASS_LOADER_WRITER, this);
    options.put(Options.KEY_CLASS_LOADER, this.getClass().getClassLoader());
    final CompilationResult result = new EclipseJavaCompiler().compile(new CompilationUnit[] { unit }, options);
    assertNotNull(result);
    assertNull(result.getErrors());
}

Example 2 with CompilationUnit

use of org.apache.sling.commons.compiler.CompilationUnit in project sling by apache.

the class JDTCompiler method generateClass.

/**
     * Compile the servlet from .java file to .class file
     */
@Override
protected void generateClass(String[] smap) throws FileNotFoundException, JasperException, Exception {
    long t1 = 0;
    if (log.isDebugEnabled()) {
        t1 = System.currentTimeMillis();
    }
    final String sourceFile = ctxt.getServletJavaFileName();
    final String packageName = ctxt.getServletPackageName();
    final String targetClassName = ((packageName.length() != 0) ? (packageName + ".") : "") + ctxt.getServletClassName();
    final CompilationUnit unit = new CompilationUnitWithSource() {

        /**
             * @see org.apache.sling.commons.compiler.CompilationUnit#getLastModified()
             */
        public long getLastModified() {
            return -1;
        }

        /**
             * @see org.apache.sling.commons.compiler.CompilationUnit#getMainClassName()
             */
        public String getMainClassName() {
            return targetClassName;
        }

        /**
             * @see org.apache.sling.commons.compiler.CompilationUnit#getSource()
             */
        public Reader getSource() throws IOException {
            return new BufferedReader(new InputStreamReader(ctxt.getInputStream(sourceFile), ctxt.getOptions().getJavaEncoding()));
        }

        /**
             * @see org.apache.sling.commons.compiler.CompilationUnitWithSource#getFileName()
             */
        public String getFileName() {
            return sourceFile;
        }
    };
    final Options options = new Options();
    options.put(Options.KEY_CLASS_LOADER_WRITER, ctxt.getRuntimeContext().getIOProvider().getClassLoaderWriter());
    options.put(Options.KEY_GENERATE_DEBUG_INFO, ctxt.getOptions().getClassDebugInfo());
    // Source JVM
    if (ctxt.getOptions().getCompilerSourceVM() != null) {
        options.put(Options.KEY_SOURCE_VERSION, ctxt.getOptions().getCompilerSourceVM());
    } else {
        // Default to 1.6
        options.put(Options.KEY_SOURCE_VERSION, Options.VERSION_1_6);
    }
    // Target JVM
    if (ctxt.getOptions().getCompilerTargetVM() != null) {
        options.put(Options.KEY_TARGET_VERSION, ctxt.getOptions().getCompilerTargetVM());
    } else {
        // Default to 1.6
        options.put(Options.KEY_TARGET_VERSION, Options.VERSION_1_6);
    }
    final ArrayList<JavacErrorDetail> problemList = new ArrayList<JavacErrorDetail>();
    final CompilationResult result = this.ctxt.getRuntimeContext().getIOProvider().getJavaCompiler().compile(new CompilationUnit[] { unit }, options);
    if (result.getErrors() != null) {
        for (final CompilerMessage cm : result.getErrors()) {
            final String name = cm.getFile();
            try {
                problemList.add(ErrorDispatcher.createJavacError(name, pageNodes, new StringBuffer(cm.getMessage()), cm.getLine(), ctxt));
            } catch (JasperException e) {
                log.error("Error visiting node", e);
            }
        }
    }
    if (!ctxt.keepGenerated()) {
        ctxt.delete(ctxt.getServletJavaFileName());
    }
    if (!problemList.isEmpty()) {
        JavacErrorDetail[] jeds = problemList.toArray(new JavacErrorDetail[0]);
        errDispatcher.javacError(jeds);
    }
    if (log.isDebugEnabled()) {
        long t2 = System.currentTimeMillis();
        log.debug("Compiled " + ctxt.getServletJavaFileName() + " " + (t2 - t1) + "ms");
    }
    if (ctxt.isPrototypeMode()) {
        return;
    }
    // JSR45 Support
    if (!this.options.isSmapSuppressed()) {
        SmapUtil.installSmap(getCompilationContext(), smap);
    }
}

Example 3 with CompilationUnit

use of org.apache.sling.commons.compiler.CompilationUnit in project sling by apache.

the class EclipseJavaCompiler method compile.

/**
     * @see org.apache.sling.commons.compiler.JavaCompiler#compile(org.apache.sling.commons.compiler.CompilationUnit[], org.apache.sling.commons.compiler.Options)
     */
@Override
public CompilationResult compile(final CompilationUnit[] units, final Options compileOptions) {
    // make sure we have an options object (to avoid null checks all over the place)
    final Options options = (compileOptions != null ? compileOptions : EMPTY_OPTIONS);
    // get classloader and classloader writer
    final ClassLoaderWriter writer = this.getClassLoaderWriter(options);
    if (writer == null) {
        return new CompilationResultImpl("Class loader writer for compilation is not available.");
    }
    final ClassLoader loader = this.getClassLoader(options, writer);
    if (loader == null) {
        return new CompilationResultImpl("Class loader for compilation is not available.");
    }
    // check sources for compilation
    boolean needsCompilation = isForceCompilation(options);
    if (!needsCompilation) {
        for (final CompilationUnit unit : units) {
            if (this.isOutDated(unit, writer)) {
                needsCompilation = true;
                break;
            }
        }
    }
    if (!needsCompilation) {
        logger.debug("All source files are recent - no compilation required.");
        return new CompilationResultImpl(writer);
    }
    // delete old class files
    for (final CompilationUnit unit : units) {
        final String name = '/' + unit.getMainClassName().replace('.', '/') + ".class";
        writer.delete(name);
    }
    // create properties for the settings object
    final Map<String, String> props = new HashMap<>();
    if (options.isGenerateDebugInfo()) {
        props.put(CompilerOptions.OPTION_LocalVariableAttribute, "generate");
        props.put(CompilerOptions.OPTION_LineNumberAttribute, "generate");
        props.put(CompilerOptions.OPTION_SourceFileAttribute, "generate");
    }
    if (options.getSourceVersion() != null) {
        props.put(CompilerOptions.OPTION_Source, options.getSourceVersion());
        props.put(CompilerOptions.OPTION_Compliance, options.getSourceVersion());
    }
    if (options.getTargetVersion() != null) {
        props.put(CompilerOptions.OPTION_TargetPlatform, options.getTargetVersion());
    }
    props.put(CompilerOptions.OPTION_Encoding, "UTF8");
    // create the settings
    final CompilerOptions settings = new CompilerOptions(props);
    logger.debug("Compiling with settings {}.", settings);
    // create the result
    final CompilationResultImpl result = new CompilationResultImpl(isIgnoreWarnings(options), writer);
    // create the context
    final CompileContext context = new CompileContext(units, result, writer, loader);
    // create the compiler
    final org.eclipse.jdt.internal.compiler.Compiler compiler = new org.eclipse.jdt.internal.compiler.Compiler(context, this.policy, settings, context, this.problemFactory, null, null);
    // compile
    compiler.compile(context.getSourceUnits());
    return result;
}

Example 4 with CompilationUnit

use of org.apache.sling.commons.compiler.CompilationUnit in project sling by apache.

the class SightlyJavaCompilerService method compileSource.

/**
     * Compiles a class using the passed fully qualified class name and its source code.
     *
     * @param sourceIdentifier the source identifier
     * @param sourceCode       the source code from which to generate the class
     * @return object instance of the class to compile
     */
public Object compileSource(SourceIdentifier sourceIdentifier, String sourceCode) {
    try {
        String fqcn = sourceIdentifier.getFullyQualifiedClassName();
        if (sightlyEngineConfiguration.keepGenerated()) {
            String path = "/" + fqcn.replaceAll("\\.", "/") + ".java";
            OutputStream os = classLoaderWriter.getOutputStream(path);
            IOUtils.write(sourceCode, os, "UTF-8");
            IOUtils.closeQuietly(os);
        }
        String[] sourceCodeLines = sourceCode.split("\\r\\n|[\\n\\x0B\\x0C\\r\\u0085\\u2028\\u2029]");
        boolean foundPackageDeclaration = false;
        for (String line : sourceCodeLines) {
            Matcher matcher = PACKAGE_DECL_PATTERN.matcher(line);
            if (matcher.matches()) {
                /*
                 * This matching might return false positives like:
                 * // package a.b.c;
                 *
                 * where from a syntactic point of view the source code doesn't have a package declaration and the expectancy is that our
                 * SightlyJavaCompilerService will add one.
                 */
                foundPackageDeclaration = true;
                break;
            }
        }
        if (!foundPackageDeclaration) {
            sourceCode = "package " + sourceIdentifier.getPackageName() + ";\n" + sourceCode;
        }
        CompilationUnit compilationUnit = new SightlyCompilationUnit(sourceCode, fqcn);
        long start = System.currentTimeMillis();
        CompilationResult compilationResult = javaCompiler.compile(new CompilationUnit[] { compilationUnit }, options);
        long end = System.currentTimeMillis();
        List<CompilerMessage> errors = compilationResult.getErrors();
        if (errors != null && errors.size() > 0) {
            throw new SightlyException(createErrorMsg(errors));
        }
        if (compilationResult.didCompile()) {
            LOG.debug("Class {} was compiled in {}ms.", fqcn, end - start);
        }
        /*
             * the class loader might have become dirty, so let the {@link ClassLoaderWriter} decide which class loader to return
             */
        return classLoaderWriter.getClassLoader().loadClass(fqcn).newInstance();
    } catch (Exception e) {
        throw new SightlyException(e);
    }
}