/*
* Copyright (c) 2006, 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.
*/
/*
* @test
* @bug 6403466
* @summary javac TaskListener should be informed when annotation processing occurs
*/
import com.sun.source.util.*;
import java.io.*;
import java.lang.annotation.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.*;
import javax.lang.model.element.*;
import javax.lang.model.type.*;
import javax.lang.model.util.*;
import javax.tools.*;
import com.sun.tools.javac.api.JavacTool;
@Wrap
@SupportedAnnotationTypes("Wrap")
public class T6403466 extends AbstractProcessor {
static final String testSrcDir = System.getProperty("test.src");
static final String testClassDir = System.getProperty("test.classes");
static final String self = T6403466.class.getName();
static PrintWriter out = new PrintWriter(System.err, true);
public static void main(String[] args) throws IOException {
JavacTool tool = JavacTool.create();
StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
Iterable<? extends JavaFileObject> files =
fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrcDir, self + ".java")));
Iterable<String> options = Arrays.asList("-processorpath", testClassDir,
"-processor", self,
"-s", ".",
"-d", ".");
JavacTask task = tool.getTask(out, fm, null, options, null, files);
VerifyingTaskListener vtl = new VerifyingTaskListener(new File(testSrcDir, self + ".out"));
task.setTaskListener(vtl);
if (!task.call())
throw new AssertionError("compilation failed");
if (vtl.iter.hasNext() || vtl.errors)
throw new AssertionError("comparison against golden file failed.");
}
public boolean process(Set<? extends TypeElement> annos, RoundEnvironment rEnv) {
if (!rEnv.processingOver()) {
Filer filer = processingEnv.getFiler();
for (TypeElement anno: annos) {
Set<? extends Element> elts = rEnv.getElementsAnnotatedWith(anno);
System.err.println("anno: " + anno);
System.err.println("elts: " + elts);
for (TypeElement te: ElementFilter.typesIn(elts)) {
try {
Writer out = filer.createSourceFile(te.getSimpleName() + "Wrapper").openWriter();
out.write("class " + te.getSimpleName() + "Wrapper { }");
out.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
return true;
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
}
@Retention(RetentionPolicy.SOURCE)
@Target(ElementType.TYPE)
@interface Wrap {
}
class VerifyingTaskListener implements TaskListener {
VerifyingTaskListener(File ref) throws IOException {
BufferedReader in = new BufferedReader(new FileReader(ref));
String line;
List<String> lines = new ArrayList<String>();
while ((line = in.readLine()) != null)
lines.add(line);
in.close();
iter = lines.iterator();
}
public void started(TaskEvent e) {
check("Started " + toString(e));
}
public void finished(TaskEvent e) {
check("Finished " + toString(e));
}
// similar to TaskEvent.toString(), but just prints basename of the file
private String toString(TaskEvent e) {
JavaFileObject file = e.getSourceFile();
return "TaskEvent["
+ e.getKind() + ","
+ (file == null ? null : new File(file.toUri().getPath()).getName()) + ","
// the compilation unit is identified by the file
+ e.getTypeElement() + "]";
}
private void check(String s) {
System.out.println(s); // write a reference copy of expected output to stdout
String ref = iter.hasNext() ? iter.next() : null;
line++;
if (!s.equals(ref)) {
if (ref != null)
System.err.println(line + ": expected: " + ref);
System.err.println(line + ": found: " + s);
errors = true;
}
}
Iterator<String> iter;
int line;
boolean errors;
}