Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 import java.io.File;

 import java.io.IOException;

 import java.net.URI;

 import java.net.URISyntaxException;

 import java.util.Arrays;

 import java.util.Iterator;

 import javax.tools.Diagnostic;

 import javax.tools.DiagnosticCollector;

 import javax.tools.JavaCompiler;

 import javax.tools.JavaCompiler.CompilationTask;

 import javax.tools.JavaFileObject;

 import javax.tools.SimpleJavaFileObject;

 import javax.tools.StandardJavaFileManager;

 import javax.tools.StandardLocation;

 import javax.tools.ToolProvider;

 import com.sun.source.util.JavacTask;

 public class Helper {

     enum ContentVars {

         IMPORTCONTAINERSTMTS("\nimport java.lang.annotation.Repeatable;\n"),

         IMPORTDEPRECATED("import java.lang.Deprecated;\n"),

         IMPORTDOCUMENTED("import java.lang.annotation.Documented;\n"),

         IMPORTINHERITED("import java.lang.annotation.Inherited;\n"),

         IMPORTRETENTION("import java.lang.annotation.Retention;\n"

         + "\nimport java.lang.annotation.RetentionPolicy;\n"),

         IMPORTSTMTS("import java.lang.annotation.*;\n"),

         IMPORTEXPECTED("import expectedFiles.*;\n"),

         REPEATABLE("\n@Repeatable(FooContainer.class)\n"),

         CONTAINER("@interface FooContainer {\n" + "  Foo[] value();\n}\n"),

         BASE("@interface Foo {}\n"),

         BASEANNO("@Foo"),

         LEGACYCONTAINER("@FooContainer(value = {@Foo, @Foo})\n"),

         REPEATABLEANNO("\n@Foo() @Foo()"),

         DEPRECATED("\n@Deprecated"),

         DOCUMENTED("\n@Documented"),

         INHERITED("\n@Inherited"),

         TARGET("\n@Target(#VAL)\n"),

         RETENTION("@Retention(RetentionPolicy.#VAL)\n"),

         RETENTIONRUNTIME("@Retention(RetentionPolicy.RUNTIME)\n");

         private String val;

         private ContentVars(String val) {

             this.val = val;

         }

         public String getVal() {

             return val;

         }

     }

     // Create and compile FileObject using values for className and contents

     public static boolean compileCode(String className, String contents,

             DiagnosticCollector<JavaFileObject> diagnostics) {

         boolean ok = false;

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         if (compiler == null) {

             throw new RuntimeException("can't get javax.tools.JavaCompiler!");

         }

         JavaFileObject file = getFile(className, contents);

         Iterable<? extends JavaFileObject> compilationUnit = Arrays.asList(file);

         CompilationTask task = compiler.getTask(null, null, diagnostics, null, null, compilationUnit);

         ok = task.call();

         return ok;

     }

     // Compile a list of FileObjects

     // Used when packages are needed and classes need to be loaded at runtime

     static File destDir = new File(System.getProperty("user.dir"));

     public static boolean compileCode(DiagnosticCollector<JavaFileObject> diagnostics, Iterable<? extends JavaFileObject> files) {

         boolean ok = false;

         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

         if (compiler == null) {

             throw new RuntimeException("can't get javax.tools.JavaCompiler!");

         }

         StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null);

         // Assuming filesCount can maximum be 2 and if true, one file is package-info.java

         if (isPkgInfoPresent(files)) {

             JavacTask task = (JavacTask) compiler.getTask(null, fm, diagnostics, null, null, files);

             try {

                 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(destDir));

                 task.generate();

             } catch (IOException ioe) {

                 throw new RuntimeException("Compilation failed for package level tests", ioe);

             }

             int err = 0;

             for (Diagnostic<? extends JavaFileObject> d : diagnostics.getDiagnostics()) {

                 if(d.getKind() == Diagnostic.Kind.ERROR) {

                   err++;

                 }

             }

             ok = (err == 0);

         } else {

             CompilationTask task = compiler.getTask(null, null, diagnostics, null, null, files);

             ok = task.call();

         }

         return ok;

     }

     static private boolean isPkgInfoPresent(Iterable<? extends JavaFileObject> files) {

         Iterator<? extends JavaFileObject> itr = files.iterator();

         while (itr.hasNext()) {

             String name = itr.next().getName();

             if (name.contains("package-info")) {

                 return true;

             }

         }

         return false;

     }

     /* String template where /*<TYPE>*/ /*gets replaced by repeating anno

      * Used to generate test src for combo tests

      *   - BasicSyntaxCombo.java

      *   - TargetAnnoCombo.java

      */

     public static final String template =

             "/*PACKAGE*/\n"

             + "//pkg test;\n\n"

             + "/*TYPE*/ //class\n"

             + "class #ClassName {\n"

             + "  /*FIELD*/ //instance var\n"

             + "  public int x = 0;\n\n"

             + "  /*FIELD*/ //Enum constants\n"

             + "  TestEnum testEnum;\n\n"

             + "  /*FIELD*/ // Static field\n"

             + "  public static int num;\n\n"

             + "  /*STATIC_INI*/\n"

             + "  static { \n" + "num = 10; \n  }\n\n"

             + "  /*CONSTRUCTOR*/\n"

             + "  #ClassName() {}\n\n"

             + "  /*INSTANCE_INI*/\n"

             + "  { \n x = 10; \n }"

             + "  /*INNER_CLASS*/\n"

             + "  class innerClass {}\n"

             + "  /*METHOD*/\n"

             + "  void bar(/*PARAMETER*/ int baz) {\n"

             + "    /*LOCAL_VARIABLE*/\n"

             + "    int y = 0;\n"

             + "  }\n"

             + "}\n\n"

             + "/*TYPE*/ //Enum\n"

             + "enum TestEnum {}\n\n"

             + "/*TYPE*/ //Interface\n"

             + "interface TestInterface {}\n\n"

             + "/*TYPE*/\n"

             + "/*ANNOTATION_TYPE*/\n"

             + "@interface TestAnnotationType{}\n"

             + "class TestPkg {}\n"

             + "class TestTypeAnno </*TYPE_PARAMETER*/ T extends Object> {\n"

             + "  String /*TYPE_USE*/[] arr;\n"

             + "}";

     static JavaFileObject getFile(String name, String code) {

         JavaFileObject o = null;

         try {

             o = new JavaStringFileObject(name, code);

         } catch (URISyntaxException e) {

             throw new RuntimeException(e);

         }

         return o;

     }

     static class JavaStringFileObject extends SimpleJavaFileObject {

         final String theCode;

         public JavaStringFileObject(String fileName, String theCode) throws URISyntaxException {

             super(new URI("string:///" + fileName.replace('.', '/') + ".java"), Kind.SOURCE);

             this.theCode = theCode;

         }

         @Override

         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

             return theCode;

         }

     }

 }