org.netbeans.modules.java.source.JavaSourceUtilImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.netbeans.modules.java.source;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.ModuleTree;
import com.sun.source.tree.Tree;
import com.sun.source.util.TreePath;
import org.netbeans.api.java.source.support.ErrorAwareTreeScanner;
import com.sun.source.util.Trees;
import com.sun.tools.javac.api.ClientCodeWrapper;
import com.sun.tools.javac.code.ClassFinder;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Symtab;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.api.JavacTaskImpl;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
import javax.lang.model.element.Element;
import javax.lang.model.element.ModuleElement;
import javax.lang.model.element.TypeElement;
import javax.tools.Diagnostic;
import javax.tools.Diagnostic.Kind;
import javax.tools.DiagnosticListener;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileObject;
import javax.tools.StandardLocation;
import org.netbeans.api.annotations.common.CheckForNull;
import org.netbeans.api.annotations.common.NonNull;
import org.netbeans.api.annotations.common.NullAllowed;
import org.netbeans.api.java.classpath.ClassPath;
import org.netbeans.api.java.classpath.JavaClassPathConstants;
import org.netbeans.api.java.platform.JavaPlatform;
import org.netbeans.api.java.queries.SourceLevelQuery;
import org.netbeans.api.java.source.ClasspathInfo;
import org.netbeans.api.java.source.CompilationController;
import org.netbeans.api.java.source.JavaSource;
import org.netbeans.api.java.source.SourceUtils;
import org.netbeans.modules.java.source.classpath.AptSourcePath;
import org.netbeans.modules.java.source.classpath.CacheClassPath;
import org.netbeans.modules.java.source.indexing.APTUtils;
import org.netbeans.modules.java.source.indexing.TransactionContext;
import org.netbeans.modules.java.source.parsing.CachingArchiveProvider;
import org.netbeans.modules.java.source.parsing.CachingFileManager;
import org.netbeans.modules.java.source.parsing.FileManagerTransaction;
import org.netbeans.modules.java.source.parsing.FileObjects;
import org.netbeans.modules.java.source.parsing.InferableJavaFileObject;
import org.netbeans.modules.java.source.parsing.JavacParser;
import org.netbeans.modules.java.source.parsing.ProcessorGenerated;
import org.netbeans.modules.java.source.usages.ClasspathInfoAccessor;
import org.netbeans.modules.parsing.api.Source;
import org.netbeans.modules.parsing.spi.ParseException;
import org.netbeans.spi.java.classpath.ClassPathFactory;
import org.netbeans.spi.java.classpath.ClassPathImplementation;
import org.netbeans.spi.java.classpath.support.ClassPathSupport;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.util.Pair;
import org.openide.util.Parameters;
/**
*
* @author Tomas Zezula
*/
@org.openide.util.lookup.ServiceProvider(service=org.netbeans.modules.java.preprocessorbridge.spi.JavaSourceUtilImpl.class)
public final class JavaSourceUtilImpl extends org.netbeans.modules.java.preprocessorbridge.spi.JavaSourceUtilImpl {
private static final Logger LOGGER = Logger.getLogger(JavaSourceUtilImpl.class.getName());
protected long createTaggedCompilationController(FileObject file, int position, long currenTag, Object[] out) throws IOException {
assert file != null;
final JavaSource js = JavaSource.forFileObject(file);
if (js != null) {
return JavaSourceAccessor.getINSTANCE().createTaggedCompilationController(js, currenTag, out);
}
long l = JavaSourceAccessor.getINSTANCE().createTaggedCompilationController(file, position, currenTag, out);
if (out[0] == null || l == -1) {
throw new FileNotFoundException(
String.format("No java source for %s, exists: %b, file: %b", //NOI18N
FileUtil.getFileDisplayName(file),
file.isValid(),
file.isData()
));
}
return l;
}
@Override
protected long createTaggedCompilationController(FileObject file, long currenTag, Object[] out) throws IOException {
return createTaggedCompilationController(file, -1, currenTag, out);
}
@Override
@NonNull
protected Map generate(
@NonNull final FileObject srcRoot,
@NonNull final FileObject file,
@NullAllowed CharSequence content,
@NullAllowed final DiagnosticListener diagnostics) throws IOException {
Parameters.notNull("srcRoot", srcRoot); //NOI18N
Parameters.notNull("file", file); //NOI18N
final String path = FileUtil.getRelativePath(srcRoot, file);
if (path == null) {
throw new IllegalArgumentException(String.format(
"File: %s not in root: %s", //NOI18N
file,
srcRoot));
}
final String[] ncs = FileObjects.getPackageAndName(
FileObjects.convertFolder2Package(FileObjects.stripExtension(path)));
final JavaFileObject toCompile = FileObjects.memoryFileObject(
ncs[0],
ncs[1]+'.'+file.getExt(),
file.toURI(),
System.currentTimeMillis(),
content);
boolean success = false;
final TransactionContext ctx = TransactionContext.beginTrans()
.register(FileManagerTransaction.class, FileManagerTransaction.writeThrough())
.register(ProcessorGenerated.class, ProcessorGenerated.create(srcRoot.toURL()));
try {
ClassPath src = ClassPath.getClassPath(srcRoot, ClassPath.SOURCE);
if (src == null) {
src = ClassPathSupport.createClassPath(srcRoot);
}
ClassPath moduleSrc = ClassPath.getClassPath(srcRoot, JavaClassPathConstants.MODULE_SOURCE_PATH);
if (moduleSrc == null) {
moduleSrc = ClassPath.EMPTY;
}
ClassPath boot = ClassPath.getClassPath(srcRoot, ClassPath.BOOT);
if (boot == null) {
boot = JavaPlatform.getDefault().getBootstrapLibraries();
}
ClassPath moduleBoot = ClassPath.getClassPath(srcRoot, JavaClassPathConstants.MODULE_BOOT_PATH);
if (moduleBoot == null) {
moduleBoot = ClassPath.EMPTY;
}
ClassPath compile = ClassPath.getClassPath(srcRoot, ClassPath.COMPILE);
if (compile == null) {
compile = ClassPath.EMPTY;
}
ClassPath moduleCompile = ClassPath.getClassPath(srcRoot, JavaClassPathConstants.MODULE_COMPILE_PATH);
if (moduleCompile == null) {
moduleCompile = ClassPath.EMPTY;
}
ClassPath moduleClass = ClassPath.getClassPath(srcRoot, JavaClassPathConstants.MODULE_CLASS_PATH);
if (moduleClass == null) {
moduleClass = ClassPath.EMPTY;
}
final ClassPath srcFin = src;
final SourceLevelQuery.Result r = SourceLevelQuery.getSourceLevel2(file);
final com.sun.tools.javac.code.Source sourceLevel = JavacParser.validateSourceLevel(
r.getSourceLevel(),
boot,
compile,
src,
moduleBoot,
moduleCompile,
moduleClass,
FileObjects.MODULE_INFO.equals(file.getName()));
final Function jfmProvider =
(loc) -> {
return loc == StandardLocation.CLASS_OUTPUT ?
new OutputFileManager(
CachingArchiveProvider.getDefault(),
srcFin,
sourceLevel) :
null;
};
final ClasspathInfo cpInfo = ClasspathInfoAccessor.getINSTANCE().create(
boot,
moduleBoot,
compile,
moduleCompile,
moduleClass,
src,
moduleSrc,
null,
true,
true,
false,
false,
false,
jfmProvider);
final APTUtils aptUtils = APTUtils.get(srcRoot);
boolean[] hasErrors = new boolean[1];
DiagnosticListener diagnosticsDelegate = diagnostics != null ?
diagnostics :
new Diags();
DiagnosticListener errors = d -> {
if (d.getKind() == Kind.ERROR) {
hasErrors[0] = true;
}
diagnosticsDelegate.report(d);
};
final JavacTaskImpl jt = JavacParser.createJavacTask(
cpInfo,
errors,
r.getSourceLevel(),
r.getProfile(),
null,
null,
aptUtils,
null,
Arrays.asList(toCompile));
Iterable attributed = jt.analyze(jt.enter(jt.parse()));
if (hasErrors[0])
return Collections.emptyMap();
final Iterable generated = jt.generate(
StreamSupport.stream(attributed.spliterator(), false)
.filter((e) -> e.getKind().isClass() || e.getKind().isInterface())
.map((e) -> (TypeElement)e)
.collect(Collectors.toList()));
final Map result = new HashMap<>();
for (JavaFileObject jfo : generated) {
if (jfo instanceof OutputFileManager.MemOutFileObject) {
final OutputFileManager.MemOutFileObject mout = (OutputFileManager.MemOutFileObject) jfo;
result.put(mout.inferBinaryName(), mout.toByteArray());
} else {
throw new IOException(String.format(
"Unexpected JavaFileObject: %s", //NOI18N
jfo));
}
}
success = true;
return Collections.unmodifiableMap(result);
} finally {
if (success) {
ctx.commit();
} else {
ctx.rollBack();
}
}
}
@Override
@CheckForNull
protected ModuleInfoHandle getModuleInfoHandle(@NonNull final Object javaSource) throws IOException {
if (!(javaSource instanceof JavaSource)) {
throw new IllegalArgumentException("The javaSource parameter must be an instance of JavaSource"); //NOI18N
}
final Collection fileObjects = ((JavaSource) javaSource).getFileObjects();
int size = fileObjects.size();
if (size > 1) {
throw new IllegalArgumentException("The javaSource parameter cannot represent multiple FileObjects"); //NOI18N
}
final Source s = size > 0 ? Source.create(fileObjects.iterator().next()) : null;
try {
final CompilationController cc = JavaSourceAccessor.getINSTANCE().createCompilationController(s, ((JavaSource) javaSource).getClasspathInfo());
if (cc != null) {
return new ModuleInfoHandle() {
@Override
@CheckForNull
public String parseModuleName() throws IOException {
cc.toPhase(JavaSource.Phase.PARSED);
final CompilationUnitTree cu = cc.getCompilationUnit();
for (Tree decl : cu.getTypeDecls()) {
if (decl.getKind() == Tree.Kind.MODULE) {
return ((ModuleTree) decl).getName().toString();
}
}
return null;
}
@Override
@CheckForNull
public ModuleTree parseModule() throws IOException {
cc.toPhase(JavaSource.Phase.PARSED);
final ErrorAwareTreeScanner scanner = new ErrorAwareTreeScanner() {
@Override
public ModuleTree visitModule(ModuleTree node, Void p) {
return node;
}
};
return scanner.scan(cc.getCompilationUnit(), null);
}
@Override
@CheckForNull
public ModuleElement resolveModule(@NonNull final ModuleTree moduleTree) throws IOException {
cc.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED);
final Trees trees = cc.getTrees();
return (ModuleElement) trees.getElement(TreePath.getPath(cc.getCompilationUnit(), moduleTree));
}
@Override
@CheckForNull
public ModuleElement resolveModule(String moduleName) throws IOException {
cc.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED);
final ModuleElement mod = cc.getElements().getModuleElement(moduleName);
return mod == null || cc.getElementUtilities().isErroneous(mod) ?
null :
mod;
}
@Override
public TypeElement readClassFile() throws IOException {
cc.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED);
final JavacTaskImpl jt = JavaSourceAccessor.getINSTANCE()
.getCompilationInfoImpl(cc).getJavacTask();
final ClassFinder finder = ClassFinder.instance(jt.getContext());
final Symtab syms = Symtab.instance(jt.getContext());
final Symbol.ClassSymbol sym;
if (FileObjects.MODULE_INFO.equals(cc.getFileObject().getName())) {
final String moduleName = SourceUtils.getModuleName(cc.getFileObject().getParent().toURL());
if (moduleName != null) {
final Symbol.ModuleSymbol msym = syms.enterModule((Name)cc.getElements().getName(moduleName));
sym = msym.module_info;
if (sym.classfile == null) {
sym.classfile = FileObjects.fileObjectFileObject(cc.getFileObject(), cc.getFileObject().getParent(), null, null);
sym.owner = msym;
msym.owner = syms.noSymbol;
sym.completer = finder.getCompleter();
msym.classLocation = StandardLocation.CLASS_PATH;
}
msym.complete();
} else {
sym = null;
}
} else {
throw new UnsupportedOperationException("Not supported yet."); //NOI18N
}
return sym;
}
};
}
return null;
} catch (ParseException pe) {
throw new IOException(pe);
}
}
private static final class Diags implements DiagnosticListener {
@Override
public void report(Diagnostic diagnostic) {
LOGGER.log(
Level.FINE,
"{0}", //NOI18N
diagnostic);
}
}
private static final class OutputFileManager implements JavaFileManager {
private final JavaFileManager readDelegate;
OutputFileManager(
@NonNull final CachingArchiveProvider cap,
@NonNull final ClassPath srcPath,
@NullAllowed final com.sun.tools.javac.code.Source sourceLevel) {
final ClassPathImplementation srcNoApt = AptSourcePath.sources(srcPath);
final ClassPath out = CacheClassPath.forSourcePath (
ClassPathFactory.createClassPath(srcNoApt),
true);
readDelegate = new CachingFileManager(cap, out, sourceLevel, false, true);
}
@Override
public Iterable list(Location location, String packageName, Set kinds, boolean recurse) throws IOException {
assertLocation(location, false);
return readDelegate.list(location, packageName, kinds, recurse);
}
@Override
public JavaFileObject getJavaFileForInput(Location location, String className, JavaFileObject.Kind kind) throws IOException {
assertLocation(location, false);
return readDelegate.getJavaFileForInput(location, className, kind);
}
@Override
public javax.tools.FileObject getFileForInput(Location location, String packageName, String relativeName) throws IOException {
assertLocation(location, false);
return readDelegate.getFileForInput(location, packageName, relativeName);
}
@Override
public JavaFileObject getJavaFileForOutput(Location location, String className, JavaFileObject.Kind kind, javax.tools.FileObject sibling) throws IOException {
assertLocation(location, true);
final String[] ncs = FileObjects.getPackageAndName(className);
return new MemOutFileObject(
ncs[0],
String.format("%s%s", ncs[1], kind.extension));
}
@Override
public javax.tools.FileObject getFileForOutput(Location location, String packageName, String relativeName, javax.tools.FileObject sibling) throws IOException {
assertLocation(location, true);
final String resourceName = FileObjects.resolveRelativePath(packageName, relativeName);
final String[] ncs = FileObjects.getFolderAndBaseName(resourceName, FileObjects.NBFS_SEPARATOR_CHAR);
return new MemOutFileObject(
FileObjects.convertFolder2Package(ncs[0]),
ncs[1]);
}
@Override
public boolean isSameFile(javax.tools.FileObject a, javax.tools.FileObject b) {
if (a == b) {
return true;
}
return a.toUri().equals(b.toUri());
}
@Override
public String inferBinaryName(Location location, JavaFileObject file) {
if (hasLocation(location)) {
return ((InferableJavaFileObject)file).inferBinaryName();
}
return null;
}
@Override
public void flush() throws IOException {
}
@Override
public void close() throws IOException {
}
@Override
public boolean hasLocation(Location location) {
return location == StandardLocation.CLASS_OUTPUT;
}
@Override
public int isSupportedOption(String string) {
return -1;
}
@Override
public boolean handleOption (final String head, final Iterator tail) {
return false;
}
@Override
public ClassLoader getClassLoader(Location location) {
assertLocation(location, false);
return null;
}
private static void assertLocation(
Location l,
boolean write) {
if (l instanceof StandardLocation) {
switch ((StandardLocation)l) {
case CLASS_OUTPUT:
return;
case CLASS_PATH:
if (!write) {
return;
}
}
}
throw new IllegalStateException(String.valueOf(l));
}
@ClientCodeWrapper.Trusted
private static final class MemOutFileObject extends FileObjects.Base {
private final ByteArrayOutputStream out;
private long modified;
MemOutFileObject(
@NonNull final String pkg,
@NonNull final String name) {
super(pkg, name, null, true);
modified = -1;
out = new ByteArrayOutputStream();
}
@Override
public URI toUri() {
return URI.create(String.format(
"%s/%s", //NOI18N
FileObjects.convertPackage2Folder(getPackage()),
getName()));
}
@Override
public InputStream openInputStream() throws IOException {
return new ByteArrayInputStream(out.toByteArray());
}
@Override
public OutputStream openOutputStream() throws IOException {
modified = System.currentTimeMillis();
out.reset();
return out;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
return encoding == null ?
new String(out.toByteArray()) :
new String(out.toByteArray(), encoding);
}
@Override
public long getLastModified() {
return modified;
}
@Override
public boolean delete() {
out.reset();
return true;
}
byte[] toByteArray() {
return out.toByteArray();
}
}
}
}
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