| /******************************************************************************* |
| * Copyright (c) 2015, 2018 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Kenneth Olson - initial API and implementation |
| * Dennis Hendriks - initial API and implementation |
| * IBM Corporation - Contribution for bug 188796 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.batch; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.tools.JavaFileManager; |
| import javax.tools.JavaFileObject; |
| |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.internal.compiler.batch.FileSystem.Classpath; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException; |
| import org.eclipse.jdt.internal.compiler.env.IModule; |
| import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer; |
| |
| @SuppressWarnings({ "rawtypes", "unchecked" }) |
| public class ClasspathJsr199 extends ClasspathLocation { |
| private static final Set<JavaFileObject.Kind> fileTypes = new HashSet<>(); |
| |
| static { |
| fileTypes.add(JavaFileObject.Kind.CLASS); |
| } |
| |
| private JavaFileManager fileManager; |
| private JavaFileManager.Location location; |
| private Classpath jrt; |
| |
| public ClasspathJsr199(JavaFileManager file, JavaFileManager.Location location) { |
| super(null, null); |
| this.fileManager = file; |
| this.location = location; |
| } |
| public ClasspathJsr199(Classpath jrt, JavaFileManager file, JavaFileManager.Location location) { |
| super(null, null); |
| this.fileManager = file; |
| this.jrt = jrt; |
| this.location = location; |
| } |
| /* |
| * Maintain two separate constructors to avoid this being constructed with any other kind of classpath |
| * (other than ClasspathJrt and ClasspathJep249 |
| */ |
| public ClasspathJsr199(ClasspathJep247 older, JavaFileManager file, JavaFileManager.Location location) { |
| super(null, null); |
| this.fileManager = file; |
| this.jrt = older; |
| this.location = location; |
| } |
| |
| @Override |
| public List fetchLinkedJars(FileSystem.ClasspathSectionProblemReporter problemReporter) { |
| // Assume no linked jars |
| return null; |
| } |
| |
| @Override |
| public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, |
| String aQualifiedBinaryFileName, boolean asBinaryOnly) { |
| if (this.jrt != null) { |
| return this.jrt.findClass(typeName, qualifiedPackageName, moduleName, aQualifiedBinaryFileName, asBinaryOnly); |
| } |
| String qualifiedBinaryFileName = File.separatorChar == '/' |
| ? aQualifiedBinaryFileName |
| : aQualifiedBinaryFileName.replace(File.separatorChar, '/'); |
| |
| try { |
| int lastDot = qualifiedBinaryFileName.lastIndexOf('.'); |
| String className = lastDot < 0 ? qualifiedBinaryFileName : qualifiedBinaryFileName.substring(0, lastDot); |
| JavaFileObject jfo = null; |
| try { |
| jfo = this.fileManager.getJavaFileForInput(this.location, className, JavaFileObject.Kind.CLASS); |
| } catch (IOException e) { |
| // treat as if class file is missing |
| } |
| |
| if (jfo == null) |
| return null; // most common case |
| |
| try (InputStream inputStream = jfo.openInputStream()) { |
| ClassFileReader reader = ClassFileReader.read(inputStream, qualifiedBinaryFileName); |
| if (reader != null) { |
| return new NameEnvironmentAnswer(reader, fetchAccessRestriction(qualifiedBinaryFileName)); |
| } |
| } |
| } catch (ClassFormatException e) { |
| // treat as if class file is missing |
| } catch (IOException e) { |
| // treat as if class file is missing |
| } |
| return null; |
| } |
| |
| @Override |
| public char[][][] findTypeNames(String aQualifiedPackageName, String moduleName) { |
| if (this.jrt != null) { |
| return this.jrt.findTypeNames(aQualifiedPackageName, moduleName); |
| } |
| String qualifiedPackageName = File.separatorChar == '/' ? aQualifiedPackageName : aQualifiedPackageName.replace( |
| File.separatorChar, '/'); |
| |
| Iterable<JavaFileObject> files = null; |
| try { |
| files = this.fileManager.list(this.location, qualifiedPackageName, fileTypes, false); |
| } catch (IOException e) { |
| // treat as if empty |
| } |
| if (files == null) { |
| return null; |
| } |
| ArrayList answers = new ArrayList(); |
| char[][] packageName = CharOperation.splitOn(File.separatorChar, qualifiedPackageName.toCharArray()); |
| |
| for (JavaFileObject file : files) { |
| String fileName = file.toUri().getPath(); |
| |
| int last = fileName.lastIndexOf('/'); |
| if (last > 0) { |
| int indexOfDot = fileName.lastIndexOf('.'); |
| if (indexOfDot != -1) { |
| String typeName = fileName.substring(last + 1, indexOfDot); |
| answers.add(CharOperation.arrayConcat(packageName, typeName.toCharArray())); |
| } |
| } |
| } |
| int size = answers.size(); |
| if (size != 0) { |
| char[][][] result = new char[size][][]; |
| answers.toArray(result); |
| return result; |
| } |
| return null; |
| } |
| |
| @Override |
| public void initialize() throws IOException { |
| if (this.jrt != null) { |
| this.jrt.initialize(); |
| } |
| } |
| |
| @Override |
| public void acceptModule(IModule mod) { |
| // do nothing |
| } |
| |
| @Override |
| public char[][] getModulesDeclaringPackage(String aQualifiedPackageName, String moduleName) { |
| if (this.jrt != null) { |
| return this.jrt.getModulesDeclaringPackage(aQualifiedPackageName, moduleName); |
| } |
| String qualifiedPackageName = File.separatorChar == '/' ? aQualifiedPackageName : aQualifiedPackageName.replace( |
| File.separatorChar, '/'); |
| |
| boolean result = false; |
| try { |
| Iterable<JavaFileObject> files = this.fileManager.list(this.location, qualifiedPackageName, fileTypes, false); |
| Iterator f = files.iterator(); |
| // if there is any content, assume a package |
| if (f.hasNext()) { |
| result = true; |
| } else { |
| // I hate to do this since it is expensive and will throw off garbage |
| // but can't think of an alternative now |
| files = this.fileManager.list(this.location, qualifiedPackageName, fileTypes, true); |
| f = files.iterator(); |
| // if there is any content, assume a package |
| if (f.hasNext()) { |
| result = true; |
| } |
| } |
| } catch (IOException e) { |
| // treat as if missing |
| } |
| return singletonModuleNameIf(result); |
| } |
| |
| @Override |
| public boolean hasCompilationUnit(String qualifiedPackageName, String moduleName) { |
| if (this.jrt != null) |
| return this.jrt.hasCompilationUnit(qualifiedPackageName, moduleName); |
| return false; |
| } |
| |
| @Override |
| public void reset() { |
| try { |
| super.reset(); |
| this.fileManager.flush(); |
| } catch (IOException e) { |
| // ignore |
| } |
| if (this.jrt != null) { |
| this.jrt.reset(); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "Classpath for Jsr 199 JavaFileManager: " + this.location; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public char[] normalizedPath() { |
| if (this.normalizedPath == null) { |
| this.normalizedPath = this.path.toCharArray(); |
| } |
| return this.normalizedPath; |
| } |
| |
| @Override |
| public String getPath() { |
| if (this.path == null) { |
| this.path = this.location.getName(); |
| } |
| return this.path; |
| } |
| |
| @Override |
| public int getMode() { |
| return BINARY; |
| } |
| |
| @Override |
| public boolean hasAnnotationFileFor(String qualifiedTypeName) { |
| return false; |
| } |
| |
| @Override |
| public Collection<String> getModuleNames(Collection<String> limitModules) { |
| if (this.jrt != null) |
| return this.jrt.getModuleNames(limitModules); |
| return Collections.emptyList(); |
| } |
| |
| @Override |
| public boolean hasModule() { |
| if (this.jrt != null) { |
| return this.jrt.hasModule(); |
| } |
| return super.hasModule(); |
| } |
| |
| @Override |
| public IModule getModule(char[] name) { |
| if (this.jrt != null) { |
| return this.jrt.getModule(name); |
| } |
| return super.getModule(name); |
| } |
| |
| @Override |
| public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, |
| String moduleName, String qualifiedBinaryFileName) { |
| // |
| return findClass(typeName, qualifiedPackageName, moduleName, qualifiedBinaryFileName, false); |
| } |
| } |