Example usage for javax.tools ToolProvider getSystemJavaCompiler

Introduction

In this page you can find the example usage for javax.tools ToolProvider getSystemJavaCompiler.

Prototype

public static JavaCompiler getSystemJavaCompiler() 

Source Link

Document

Returns the Java™ programming language compiler provided with this platform.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    String sourceFile = "c:/HelloWorld.Java";
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);

    List<File> sourceFileList = new ArrayList<File>();
    sourceFileList.add(new File(sourceFile));
    Iterable<? extends JavaFileObject> compilationUnits = fileManager
            .getJavaFileObjectsFromFiles(sourceFileList);
    CompilationTask task = compiler.getTask(null, fileManager, null, null, null, compilationUnits);
    boolean result = task.call();
    if (result) {
        System.out.println("Compilation was successful");
    } else {//from  w  ww.ja v  a  2 s  .  c o m
        System.out.println("Compilation failed");
    }
    fileManager.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String sourceFile = "c:/HelloWorld.Java";
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
    StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);

    List<File> sourceFileList = new ArrayList<File>();
    sourceFileList.add(new File(sourceFile));
    Iterable<? extends JavaFileObject> compilationUnits = fileManager
            .getJavaFileObjectsFromFiles(sourceFileList);
    CompilationTask task = compiler.getTask(null, fileManager, null, null, null, compilationUnits);
    task.call();//from  w w  w  . j a  va  2s.  c  o m
    fileManager.close();
    List<Diagnostic<? extends JavaFileObject>> diagnosticList = diagnostics.getDiagnostics();
    for (Diagnostic<? extends JavaFileObject> diagnostic : diagnosticList) {
        System.out.println("Position:" + diagnostic.getStartPosition());
    }
}

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From source file:CompileSourceInMemory.java

public static void main(String args[]) throws IOException {
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();

    StringWriter writer = new StringWriter();
    PrintWriter out = new PrintWriter(writer);
    out.println("public class HelloWorld {");
    out.println("  public static void main(String args[]) {");
    out.println("    System.out.println(\"This is in another java file\");");
    out.println("  }");
    out.println("}");
    out.close();//  w w w.  j  a v  a  2s  . c o m
    JavaFileObject file = new JavaSourceFromString("HelloWorld", writer.toString());

    Iterable<? extends JavaFileObject> compilationUnits = Arrays.asList(file);
    CompilationTask task = compiler.getTask(null, null, diagnostics, null, null, compilationUnits);

    boolean success = task.call();
    for (Diagnostic diagnostic : diagnostics.getDiagnostics()) {
        System.out.println(diagnostic.getCode());
        System.out.println(diagnostic.getKind());
        System.out.println(diagnostic.getPosition());
        System.out.println(diagnostic.getStartPosition());
        System.out.println(diagnostic.getEndPosition());
        System.out.println(diagnostic.getSource());
        System.out.println(diagnostic.getMessage(null));

    }
    System.out.println("Success: " + success);

    if (success) {
        try {
            Class.forName("HelloWorld").getDeclaredMethod("main", new Class[] { String[].class }).invoke(null,
                    new Object[] { null });
        } catch (ClassNotFoundException e) {
            System.err.println("Class not found: " + e);
        } catch (NoSuchMethodException e) {
            System.err.println("No such method: " + e);
        } catch (IllegalAccessException e) {
            System.err.println("Illegal access: " + e);
        } catch (InvocationTargetException e) {
            System.err.println("Invocation target: " + e);
        }
    }
}

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From source file:gool.executor.ExecutorHelper.java

public static Iterable<? extends JavaFileObject> getJavaFileObjects(Collection<? extends File> inputFiles) {
    return ToolProvider.getSystemJavaCompiler().getStandardFileManager(null, null, null)
            .getJavaFileObjectsFromFiles(inputFiles);
}

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From source file:cop.raml.processor.AbstractProcessorTest.java

protected static boolean runAnnotationProcessor(File dir) throws URISyntaxException {
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    Set<JavaFileObject> compilationUnits = new LinkedHashSet<>();

    for (File file : (List<File>) FileUtils.listFiles(dir, JAVA_FILE_FILTER, DirectoryFileFilter.INSTANCE))
        compilationUnits.add(new SimpleJavaFileObjectImpl(file, JavaFileObject.Kind.SOURCE));

    List<String> options = new ArrayList<>();
    //        options.put("-Apackages=com.bosch");
    //        options.put("-AfilterRegex=AnalysisController");
    //        options.put("-Aversion=0.8");
    options.add("-d");
    options.add("target");

    JavaCompiler.CompilationTask task = compiler.getTask(null, null, null, options, null, compilationUnits);
    task.setProcessors(Collections.singleton(new RestProcessor()));

    return task.call();
}

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From source file:gov.va.vinci.leo.tools.AutoCompile.java

/**
 * Compile the files in the list.  Optionally provide a destination directory where the
 * compiled files should be placed./*from  ww w . j a va  2  s .  com*/
 *
 * @param files           List of java files to be compiled
 * @param outputDirectory Optional, output directory where the compiled files will be written
 * @throws Exception If there are errors compiling the files or we are unable to get a compiler
 */
public static void compileFiles(File[] files, String outputDirectory) throws Exception {
    //If the list is null there is nothing to do
    if (files == null) {
        return;
    }

    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    if (compiler == null) {
        throw new Exception("Unable to get a Compiler from the ToolProvider");
    }
    StandardJavaFileManager stdFileManager = compiler.getStandardFileManager(null, null, null);
    Iterable<String> compilationOptions = (StringUtils.isBlank(outputDirectory)) ? null
            : Arrays.asList(new String[] { "-d", outputDirectory });
    try {
        Iterable<? extends JavaFileObject> compilationUnits = stdFileManager
                .getJavaFileObjectsFromFiles(Arrays.asList(files));
        compiler.getTask(null, stdFileManager, null, compilationOptions, null, compilationUnits).call();
    } finally {
        stdFileManager.close();
    } //finally

}

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From source file:com.yahoo.maven.visitor.SuccessfulCompilationAsserter.java

public void assertNoCompilationErrors() throws IOException {
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<>();
    try (StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null,
            StandardCharsets.UTF_8)) {
        List<File> javaFiles = new ArrayList<>();
        try (Stream<Path> stream = Files.walk(scratchSpace)) {
            Iterator<Path> iterator = stream.iterator();
            while (iterator.hasNext()) {
                Path path = iterator.next();
                if (Files.isRegularFile(path) && "java".equals(FilenameUtils.getExtension(path.toString()))) {
                    javaFiles.add(path.toFile());
                }/*w  w w .ja v  a 2  s .  co m*/
            }
        }
        Iterable<? extends JavaFileObject> compilationUnits = fileManager
                .getJavaFileObjectsFromFiles(javaFiles);
        compiler.getTask(null, fileManager, diagnostics,
                Arrays.asList("-classpath", System.getProperty("java.class.path")), null, compilationUnits)
                .call();
    }
    int errors = 0;
    for (Diagnostic<? extends JavaFileObject> diagnostic : diagnostics.getDiagnostics()) {
        if (Diagnostic.Kind.ERROR.equals(diagnostic.getKind())) {
            System.err.println(diagnostic);
            errors++;
        }
    }
    assertEquals(0, errors);
}

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From source file:org.glowroot.common2.repo.util.Compilations.java

public static Class<?> compile(String source) throws Exception {
    JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnosticCollector = new DiagnosticCollector<JavaFileObject>();

    IsolatedClassLoader isolatedClassLoader = new IsolatedClassLoader();

    StandardJavaFileManager standardFileManager = javaCompiler.getStandardFileManager(diagnosticCollector,
            Locale.ENGLISH, UTF_8);
    standardFileManager.setLocation(StandardLocation.CLASS_PATH, getCompilationClassPath());
    JavaFileManager fileManager = new IsolatedJavaFileManager(standardFileManager, isolatedClassLoader);
    try {/*from  w  w  w. j av a  2s .  c  om*/
        List<JavaFileObject> compilationUnits = Lists.newArrayList();

        String className = getPublicClassName(source);
        int index = className.lastIndexOf('.');
        String simpleName;
        if (index == -1) {
            simpleName = className;
        } else {
            simpleName = className.substring(index + 1);
        }
        compilationUnits.add(new SourceJavaFileObject(simpleName, source));

        JavaCompiler.CompilationTask task = javaCompiler.getTask(null, fileManager, diagnosticCollector, null,
                null, compilationUnits);
        task.call();

        List<Diagnostic<? extends JavaFileObject>> diagnostics = diagnosticCollector.getDiagnostics();
        if (!diagnostics.isEmpty()) {
            List<String> compilationErrors = Lists.newArrayList();
            for (Diagnostic<? extends JavaFileObject> diagnostic : diagnostics) {
                compilationErrors.add(checkNotNull(diagnostic.toString()));
            }
            throw new CompilationException(compilationErrors);
        }
        if (className.isEmpty()) {
            throw new CompilationException(ImmutableList.of("Class must be public"));
        }
        return isolatedClassLoader.loadClass(className);
    } finally {
        fileManager.close();
    }
}

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From source file:com.googlecode.jsonschema2pojo.integration.util.Compiler.java

public void compile(File directory, String classpath) {

    JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
    StandardJavaFileManager fileManager = javaCompiler.getStandardFileManager(null, null, null);

    Iterable<? extends JavaFileObject> compilationUnits = fileManager
            .getJavaFileObjectsFromFiles(findAllSourceFiles(directory));

    if (compilationUnits.iterator().hasNext()) {
        Boolean success = javaCompiler
                .getTask(null, fileManager, null, asList("-classpath", classpath), null, compilationUnits)
                .call();// ww w.  j a  v  a2s .c  o  m
        assertThat("Compilation was not successful, check stdout for errors", success, is(true));
    }

}

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From source file:org.cloudfoundry.practical.demo.local.LocalConfiguration.java

@Bean
JavaCompiler javaCompiler() {
    return ToolProvider.getSystemJavaCompiler();
}

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