/*
* Copyright (c) 2012, 2014, 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 {int value() default Integer.MAX_VALUE;}\n"),
BASEANNO("@Foo(0)"),
LEGACYCONTAINER("@FooContainer(value = {@Foo(1), @Foo(2)})\n"),
REPEATABLEANNO("\n@Foo(1) @Foo(2)"),
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!");
}
try (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;
} catch (IOException e) {
throw new Error(e);
}
}
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"
+ "/*ANNODATA*/\n" // import statements, declaration of Foo/FooContainer
+ "/*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;
}
}
}