| /* |
| * Copyright (c) 2011, 2012, 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 7093891 |
| * @summary support multiple task listeners |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.EnumMap; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.annotation.processing.AbstractProcessor; |
| import javax.annotation.processing.RoundEnvironment; |
| import javax.annotation.processing.SupportedAnnotationTypes; |
| import javax.lang.model.element.TypeElement; |
| 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; |
| import com.sun.source.util.TaskEvent; |
| import com.sun.source.util.TaskListener; |
| import com.sun.tools.javac.api.JavacTool; |
| |
| public class TestSimpleAddRemove { |
| enum AddKind { |
| SET_IN_TASK, |
| ADD_IN_TASK, |
| ADD_IN_PROCESSOR, |
| ADD_IN_LISTENER; |
| } |
| |
| enum RemoveKind { |
| REMOVE_IN_TASK, |
| REMOVE_IN_PROCESSOR, |
| REMOVE_IN_LISTENER, |
| } |
| |
| enum CompileKind { |
| CALL { |
| void run(JavacTask t) { |
| if (!t.call()) throw new Error("compilation failed"); |
| } |
| }, |
| GENERATE { |
| void run(JavacTask t) throws IOException { |
| t.generate(); |
| } |
| }; |
| abstract void run(JavacTask t) throws IOException; |
| } |
| |
| static class EventKindCounter extends EnumMap<TaskEvent.Kind, EventKindCounter.Count> { |
| static class Count { |
| int started; |
| int finished; |
| |
| @Override |
| public String toString() { |
| return started + ":" + finished; |
| } |
| } |
| |
| EventKindCounter() { |
| super(TaskEvent.Kind.class); |
| } |
| |
| void inc(TaskEvent.Kind k, boolean started) { |
| Count c = get(k); |
| if (c == null) |
| put(k, c = new Count()); |
| |
| if (started) |
| c.started++; |
| else |
| c.finished++; |
| } |
| } |
| |
| static class TestListener implements TaskListener { |
| EventKindCounter counter; |
| |
| TestListener(EventKindCounter c) { |
| counter = c; |
| } |
| |
| public void started(TaskEvent e) { |
| counter.inc(e.getKind(), true); |
| } |
| |
| public void finished(TaskEvent e) { |
| counter.inc(e.getKind(), false); |
| } |
| } |
| |
| static void addInListener(final JavacTask task, final TaskEvent.Kind kind, final TaskListener listener) { |
| task.addTaskListener(new TaskListener() { |
| public void started(TaskEvent e) { |
| if (e.getKind() == kind) { |
| task.addTaskListener(listener); |
| task.removeTaskListener(this); |
| } |
| } |
| |
| public void finished(TaskEvent e) { } |
| }); |
| } |
| |
| static void removeInListener(final JavacTask task, final TaskEvent.Kind kind, final TaskListener listener) { |
| task.addTaskListener(new TaskListener() { |
| public void started(TaskEvent e) { |
| if (e.getKind() == kind) { |
| task.removeTaskListener(listener); |
| task.removeTaskListener(this); |
| } |
| } |
| |
| public void finished(TaskEvent e) { } |
| }); |
| } |
| |
| @SupportedAnnotationTypes("*") |
| class TestProcessor extends AbstractProcessor { |
| AddKind ak; |
| RemoveKind rk; |
| TaskListener listener; |
| |
| TestProcessor(AddKind ak, RemoveKind rk, TaskListener listener) { |
| this.ak = ak; |
| this.rk = rk; |
| this.listener = listener; |
| } |
| |
| int round = 0; |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| // System.err.println("TestProcessor.process " + roundEnv); |
| JavacTask task = JavacTask.instance(processingEnv); |
| if (++round == 1) { |
| switch (ak) { |
| case ADD_IN_PROCESSOR: |
| task.addTaskListener(listener); |
| break; |
| case ADD_IN_LISTENER: |
| addInListener(task, TaskEvent.Kind.ANALYZE, listener); |
| break; |
| } |
| } else if (roundEnv.processingOver()) { |
| switch (rk) { |
| case REMOVE_IN_PROCESSOR: |
| task.removeTaskListener(listener); |
| break; |
| case REMOVE_IN_LISTENER: |
| removeInListener(task, TaskEvent.Kind.GENERATE, listener); |
| break; |
| } |
| } |
| return true; |
| } |
| } |
| |
| static class TestSource extends SimpleJavaFileObject { |
| public TestSource() { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return "class Test { }"; |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| new TestSimpleAddRemove().run(); |
| } |
| |
| JavacTool tool = (JavacTool) ToolProvider.getSystemJavaCompiler(); |
| StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null); |
| |
| void run() throws Exception { |
| for (CompileKind ck: CompileKind.values()) { |
| for (AddKind ak: AddKind.values()) { |
| for (RemoveKind rk: RemoveKind.values()) { |
| test(ck, ak, rk); |
| } |
| } |
| } |
| if (errors > 0) |
| throw new Exception(errors + " errors occurred"); |
| } |
| |
| void test(CompileKind ck, AddKind ak, RemoveKind rk) throws IOException { |
| System.err.println("Test: " + ck + " " + ak + " " + rk); |
| |
| File tmpDir = new File(ck + "-" + ak + "-" + rk); |
| tmpDir.mkdirs(); |
| fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(tmpDir)); |
| |
| List<String> options = new ArrayList<String>(); |
| Iterable<? extends JavaFileObject> files = Arrays.asList(new TestSource()); |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw); |
| JavacTask task = tool.getTask(pw, fm, null, options, null, files); |
| |
| EventKindCounter ec = new EventKindCounter(); |
| TaskListener listener = new TestListener(ec); |
| boolean needProcessor = false; |
| |
| switch (ak) { |
| case SET_IN_TASK: |
| task.setTaskListener(listener); |
| break; |
| case ADD_IN_TASK: |
| task.addTaskListener(listener); |
| break; |
| case ADD_IN_PROCESSOR: |
| case ADD_IN_LISTENER: |
| needProcessor = true; |
| } |
| |
| switch (rk) { |
| case REMOVE_IN_TASK: |
| task.removeTaskListener(listener); |
| break; |
| case REMOVE_IN_PROCESSOR: |
| case REMOVE_IN_LISTENER: |
| needProcessor = true; |
| } |
| |
| if (needProcessor) |
| task.setProcessors(Arrays.asList(new TestProcessor(ak, rk, listener))); |
| |
| ck.run(task); |
| System.err.println(ec); |
| |
| check(ck, ak, rk, ec); |
| |
| System.err.println(); |
| } |
| |
| void check(CompileKind ck, AddKind ak, RemoveKind rk, EventKindCounter ec) { |
| // All results should be independent of ck, so we can ignore that |
| |
| // Quick way to compare expected values of ec, by comparing ec.toString() |
| String expect = ec.toString(); |
| String found; |
| |
| switch (ak) { |
| // Add/set in task should record all events until the listener is removed |
| case SET_IN_TASK: |
| case ADD_IN_TASK: |
| switch (rk) { |
| case REMOVE_IN_TASK: |
| // Remove will succeed, meaning no events will be recorded |
| found = "{}"; |
| break; |
| case REMOVE_IN_PROCESSOR: |
| found = "{PARSE=1:1, ENTER=2:2, ANNOTATION_PROCESSING=1:0, ANNOTATION_PROCESSING_ROUND=2:1}"; |
| break; |
| case REMOVE_IN_LISTENER: |
| found = "{PARSE=1:1, ENTER=3:3, ANALYZE=1:1, GENERATE=1:0, ANNOTATION_PROCESSING=1:1, ANNOTATION_PROCESSING_ROUND=2:2}"; |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| break; |
| |
| // "Add in processor" should skip initial PARSE/ENTER events |
| case ADD_IN_PROCESSOR: |
| switch (rk) { |
| // Remove will fail (too early), so events to end will be recorded |
| case REMOVE_IN_TASK: |
| found = "{ENTER=2:2, ANALYZE=1:1, GENERATE=1:1, ANNOTATION_PROCESSING=0:1, ANNOTATION_PROCESSING_ROUND=1:2}"; |
| break; |
| case REMOVE_IN_PROCESSOR: |
| found = "{ENTER=1:1, ANNOTATION_PROCESSING_ROUND=1:1}"; |
| break; |
| case REMOVE_IN_LISTENER: |
| found = "{ENTER=2:2, ANALYZE=1:1, GENERATE=1:0, ANNOTATION_PROCESSING=0:1, ANNOTATION_PROCESSING_ROUND=1:2}"; |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| break; |
| |
| // "Add in listener" will occur during "ANALYSE.started" event |
| case ADD_IN_LISTENER: |
| switch (rk) { |
| // Remove will fail (too early, so events to end will be recorded |
| case REMOVE_IN_TASK: |
| case REMOVE_IN_PROCESSOR: |
| found = "{ANALYZE=0:1, GENERATE=1:1}"; |
| break; |
| // Remove will succeed during "GENERATE.finished" event |
| case REMOVE_IN_LISTENER: |
| found = "{ANALYZE=0:1, GENERATE=1:0}"; |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| break; |
| default: |
| throw new IllegalStateException(); |
| } |
| |
| if (!found.equals(expect)) { |
| System.err.println("Expected: " + expect); |
| System.err.println(" Found: " + found); |
| error("unexpected value found"); |
| } |
| } |
| |
| int errors; |
| |
| void error(String message) { |
| System.err.println("Error: " + message); |
| errors++; |
| } |
| } |