lbownik commented on code in PR #4885: URL: https://github.com/apache/netbeans/pull/4885#discussion_r1024273281
########## java/java.editor.base/src/org/netbeans/modules/java/editor/base/embedding/EmbeddingProviderImpl.java: ########## @@ -0,0 +1,189 @@ +/* + * 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.editor.base.embedding; + +import com.sun.source.tree.MethodInvocationTree; +import com.sun.source.tree.Tree.Kind; +import com.sun.source.util.TreePath; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Map.Entry; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.AnnotationValue; +import javax.lang.model.element.Element; +import javax.lang.model.element.ElementKind; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.VariableElement; +import org.netbeans.api.editor.mimelookup.MimeRegistration; +import org.netbeans.api.java.lexer.JavaMultiLineStringTokenId; +import org.netbeans.api.java.lexer.JavaTokenId; +import org.netbeans.api.java.source.CompilationController; +import org.netbeans.api.java.source.JavaSource; +import org.netbeans.api.lexer.Language; +import org.netbeans.api.lexer.PartType; +import org.netbeans.api.lexer.TokenHierarchy; +import org.netbeans.api.lexer.TokenSequence; +import org.netbeans.modules.parsing.api.Embedding; +import org.netbeans.modules.parsing.api.Snapshot; +import org.netbeans.modules.parsing.spi.Parser; +import org.netbeans.modules.parsing.spi.ParserBasedEmbeddingProvider; +import org.netbeans.modules.parsing.spi.Scheduler; +import org.netbeans.modules.parsing.spi.SchedulerTask; +import org.netbeans.modules.parsing.spi.TaskFactory; +import org.openide.filesystems.FileObject; +import org.openide.filesystems.FileUtil; +import org.openide.util.Exceptions; + +/** + * + * @author lahvac + */ +public class EmbeddingProviderImpl extends ParserBasedEmbeddingProvider<Parser.Result> { + + public EmbeddingProviderImpl() { + super(); + } + + @Override + public List<Embedding> getEmbeddings(Parser.Result result) { + CompilationController info = CompilationController.get(result); + if (info == null) { + return Collections.emptyList(); + } + List<Embedding> embeddings = new ArrayList<>(); + TokenSequence<?> ts = TokenHierarchy.get(info.getSnapshot().getSource().getDocument(true)).tokenSequence(); //XXX: locking! + ts.moveStart(); + while (ts.moveNext()) { + if (ts.token().id() == JavaTokenId.MULTILINE_STRING_LITERAL && ts.token().partType() == PartType.COMPLETE) { + String language = findLanguageFromTarget(info, ts.offset() + 1); + String mimeType = language != null ? mapLanguageToMimeType(language) : null; + if (mimeType == null) { + continue; + } + List<Embedding> parts = embeddingsForTextBlockContent(result.getSnapshot(), ts, mimeType); + if (!parts.isEmpty()) { + embeddings.add(Embedding.create(parts)); + } + } + } + return embeddings; + } + + private static String findLanguageFromTarget(CompilationController info, int pos) { + try { + info.toPhase(JavaSource.Phase.RESOLVED); //TODO - improve, avoid resolved if at all possible + } catch (IOException ex) { + Exceptions.printStackTrace(ex); + return null; + } + TreePath tp = info.getTreeUtilities().pathFor(pos); + if (tp.getLeaf().getKind() != Kind.STRING_LITERAL) { + return null; + } + VariableElement target = null; + switch (tp.getParentPath().getLeaf().getKind()) { + case METHOD_INVOCATION: { + int argPos = ((MethodInvocationTree) tp.getParentPath().getLeaf()).getArguments().indexOf(tp.getLeaf()); + if (argPos == (-1)) { + break; + } + Element el = info.getTrees().getElement(tp.getParentPath()); + if (el == null || (el.getKind() != ElementKind.METHOD && el.getKind() != ElementKind.CONSTRUCTOR)) { + break; + } + target = ((ExecutableElement) el).getParameters().get(argPos); + break; + } + case VARIABLE: { + target = (VariableElement) info.getTrees().getElement(tp.getParentPath()); + break; + } + } + if (target == null) { + return null; + } + for (AnnotationMirror am : target.getAnnotationMirrors()) { Review Comment: lines 124 to 133 look loke a candidate for a private static method -- This is an automated message from the Apache Git Service. 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