package org.eclipse.jdt.internal.compiler.batch;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.CompilationResult;
import org.eclipse.jdt.internal.compiler.DefaultErrorHandlingPolicies;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException;
import org.eclipse.jdt.internal.compiler.classfmt.ExternalAnnotationProvider;
import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
import org.eclipse.jdt.internal.compiler.env.IModule;
import org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
import org.eclipse.jdt.internal.compiler.parser.Parser;
import org.eclipse.jdt.internal.compiler.parser.ScannerHelper;
import org.eclipse.jdt.internal.compiler.problem.DefaultProblemFactory;
import org.eclipse.jdt.internal.compiler.problem.ProblemReporter;
import org.eclipse.jdt.internal.compiler.util.Util;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Stream;
@SuppressWarnings({"rawtypes", "unchecked"})
public class ClasspathDirectory extends ClasspathLocation {
private Hashtable directoryCache;
private String[] missingPackageHolder = new String[1];
private int mode;
private String encoding;
private Hashtable<String, Hashtable<String, String>> packageSecondaryTypes = null;
Map options;
ClasspathDirectory(File directory, String encoding, int mode,
AccessRuleSet accessRuleSet, String destinationPath, Map options) {
super(accessRuleSet, destinationPath);
this.mode = mode;
this.options = options;
try {
this.path = directory.getCanonicalPath();
} catch (IOException e) {
this.path = directory.getAbsolutePath();
}
if (!this.path.endsWith(File.separator))
this.path += File.separator;
this.directoryCache = new Hashtable(11);
this.encoding = encoding;
}
String[] directoryList(String qualifiedPackageName) {
String[] dirList = (String[]) this.directoryCache.get(qualifiedPackageName);
if (dirList == this.missingPackageHolder) return null;
if (dirList != null) return dirList;
File dir = new File(this.path + qualifiedPackageName);
notFound : if (dir.isDirectory()) {
int index = qualifiedPackageName.length();
int last = qualifiedPackageName.lastIndexOf(File.separatorChar);
while (--index > last && !ScannerHelper.isUpperCase(qualifiedPackageName.charAt(index))){}
if (index > last) {
if (last == -1) {
if (!doesFileExist(qualifiedPackageName, Util.EMPTY_STRING))
break notFound;
} else {
String packageName = qualifiedPackageName.substring(last + 1);
String parentPackage = qualifiedPackageName.substring(0, last);
if (!doesFileExist(packageName, parentPackage))
break notFound;
}
}
if ((dirList = dir.list()) == null)
dirList = CharOperation.NO_STRINGS;
this.directoryCache.put(qualifiedPackageName, dirList);
return dirList;
}
this.directoryCache.put(qualifiedPackageName, this.missingPackageHolder);
return null;
}
boolean doesFileExist(String fileName, String qualifiedPackageName) {
String[] dirList = directoryList(qualifiedPackageName);
if (dirList == null) return false;
for (int i = dirList.length; --i >= 0;)
if (fileName.equals(dirList[i]))
return true;
return false;
}
@Override
public List fetchLinkedJars(FileSystem.ClasspathSectionProblemReporter problemReporter) {
return null;
}
private NameEnvironmentAnswer findClassInternal(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
if (!isPackage(qualifiedPackageName, null)) return null;
String fileName = new String(typeName);
boolean binaryExists = ((this.mode & BINARY) != 0) && doesFileExist(fileName + SUFFIX_STRING_class, qualifiedPackageName);
boolean sourceExists = ((this.mode & SOURCE) != 0) && doesFileExist(fileName + SUFFIX_STRING_java, qualifiedPackageName);
if (sourceExists && !asBinaryOnly) {
String fullSourcePath = this.path + qualifiedBinaryFileName.substring(0, qualifiedBinaryFileName.length() - 6) + SUFFIX_STRING_java;
CompilationUnit unit = new CompilationUnit(null, fullSourcePath, this.encoding, this.destinationPath);
unit.module = this.module == null ? null : this.module.name();
if (!binaryExists)
return new NameEnvironmentAnswer(unit,
fetchAccessRestriction(qualifiedBinaryFileName));
String fullBinaryPath = this.path + qualifiedBinaryFileName;
long binaryModified = new File(fullBinaryPath).lastModified();
long sourceModified = new File(fullSourcePath).lastModified();
if (sourceModified > binaryModified)
return new NameEnvironmentAnswer(unit,
fetchAccessRestriction(qualifiedBinaryFileName));
}
if (binaryExists) {
try {
ClassFileReader reader = ClassFileReader.read(this.path + qualifiedBinaryFileName);
String typeSearched = qualifiedPackageName.length() > 0 ?
qualifiedPackageName.replace(File.separatorChar, '/') + "/" + fileName
: fileName;
if (!CharOperation.equals(reader.getName(), typeSearched.toCharArray())) {
reader = null;
}
if (reader != null) {
char[] modName = reader.moduleName != null ? reader.moduleName : this.module != null ? this.module.name() : null;
return new NameEnvironmentAnswer(
reader,
fetchAccessRestriction(qualifiedBinaryFileName),
modName);
}
} catch (IOException | ClassFormatException e) {
}
}
return null;
}
public NameEnvironmentAnswer findSecondaryInClass(char[] typeName, String qualifiedPackageName, String qualifiedBinaryFileName) {
if(CharOperation.equals(TypeConstants.PACKAGE_INFO_NAME, typeName)) {
return null;
}
String typeNameString = new String(typeName);
String moduleName = this.module != null ? String.valueOf(this.module.name()) : null;
boolean prereqs = this.options != null && isPackage(qualifiedPackageName, moduleName) && ((this.mode & SOURCE) != 0) && doesFileExist(typeNameString + SUFFIX_STRING_java, qualifiedPackageName);
return prereqs ? null : findSourceSecondaryType(typeNameString, qualifiedPackageName, qualifiedBinaryFileName);
}
@Override
public boolean hasAnnotationFileFor(String qualifiedTypeName) {
int pos = qualifiedTypeName.lastIndexOf('/');
if (pos != -1 && (pos + 1 < qualifiedTypeName.length())) {
String fileName = qualifiedTypeName.substring(pos + 1) + ExternalAnnotationProvider.ANNOTATION_FILE_SUFFIX;
return doesFileExist(fileName, qualifiedTypeName.substring(0, pos));
}
return false;
}
@Override
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName) {
return findClass(typeName, qualifiedPackageName, moduleName, qualifiedBinaryFileName, false);
}
@Override
public NameEnvironmentAnswer findClass(char[] typeName, String qualifiedPackageName, String moduleName, String qualifiedBinaryFileName, boolean asBinaryOnly) {
if (File.separatorChar == '/')
return findClassInternal(typeName, qualifiedPackageName, qualifiedBinaryFileName, asBinaryOnly);
return findClassInternal(typeName, qualifiedPackageName.replace('/', File.separatorChar),
qualifiedBinaryFileName.replace('/', File.separatorChar), asBinaryOnly);
}
private Hashtable<String, String> getSecondaryTypes(String qualifiedPackageName) {
Hashtable<String, String> packageEntry = new Hashtable<>();
String[] dirList = (String[]) this.directoryCache.get(qualifiedPackageName);
if (dirList == this.missingPackageHolder
|| dirList == null)
return packageEntry;
File dir = new File(this.path + qualifiedPackageName);
File[] listFiles = dir.isDirectory() ? dir.listFiles() : null;
if (listFiles == null) return packageEntry;
for (int i = 0, l = listFiles.length; i < l; ++i) {
File f = listFiles[i];
if (f.isDirectory()) continue;
String s = f.getAbsolutePath();
if (s == null) continue;
if (!(s.endsWith(SUFFIX_STRING_java) || s.endsWith(SUFFIX_STRING_JAVA))) continue;
CompilationUnit cu = new CompilationUnit(null, s, this.encoding, this.destinationPath);
CompilationResult compilationResult = new CompilationResult(s.toCharArray(), 1, 1, 10);
ProblemReporter problemReporter =
new ProblemReporter(
DefaultErrorHandlingPolicies.proceedWithAllProblems(),
new CompilerOptions(this.options),
new DefaultProblemFactory());
Parser parser = new Parser(problemReporter, false);
parser.reportSyntaxErrorIsRequired = false;
CompilationUnitDeclaration unit = parser.parse(cu, compilationResult);
org.eclipse.jdt.internal.compiler.ast.TypeDeclaration[] types = unit != null ? unit.types : null;
if (types == null) continue;
for (int j = 0, k = types.length; j < k; j++) {
TypeDeclaration type = types[j];
char[] name = type.isSecondary() ? type.name : null;
if (name != null)
packageEntry.put(new String(name), s);
}
}
return packageEntry;
}
private NameEnvironmentAnswer findSourceSecondaryType(String typeName, String qualifiedPackageName, String qualifiedBinaryFileName) {
if (this.packageSecondaryTypes == null) this.packageSecondaryTypes = new Hashtable<>();
Hashtable<String, String> packageEntry = this.packageSecondaryTypes.get(qualifiedPackageName);
if (packageEntry == null) {
packageEntry = getSecondaryTypes(qualifiedPackageName);
this.packageSecondaryTypes.put(qualifiedPackageName, packageEntry);
}
String fileName = packageEntry.get(typeName);
return fileName != null ? new NameEnvironmentAnswer(new CompilationUnit(null,
fileName, this.encoding, this.destinationPath),
fetchAccessRestriction(qualifiedBinaryFileName)) : null;
}
@Override
public char[][][] findTypeNames(String qualifiedPackageName, String moduleName) {
if (!isPackage(qualifiedPackageName, moduleName)) {
return null;
}
File dir = new File(this.path + qualifiedPackageName);
if (!dir.exists() || !dir.isDirectory()) {
return null;
}
String[] listFiles = dir.list(new FilenameFilter() {
@Override
public boolean accept(File directory1, String name) {
String fileName = name.toLowerCase();
return fileName.endsWith(".class") || fileName.endsWith(".java");
}
});
int length;
if (listFiles == null || (length = listFiles.length) == 0) {
return null;
}
Set<String> secondary = getSecondaryTypes(qualifiedPackageName).keySet();
char[][][] result = new char[length + secondary.size()][][];
char[][] packageName = CharOperation.splitOn(File.separatorChar, qualifiedPackageName.toCharArray());
for (int i = 0; i < length; i++) {
String fileName = listFiles[i];
int indexOfLastDot = fileName.indexOf('.');
String typeName = indexOfLastDot > 0 ? fileName.substring(0, indexOfLastDot) : fileName;
result[i] = CharOperation.arrayConcat(packageName, typeName.toCharArray());
}
if (secondary.size() > 0) {
int idx = length;
for (String type : secondary) {
result[idx++] = CharOperation.arrayConcat(packageName, type.toCharArray());
}
}
return result;
}
@Override
public void initialize() throws IOException {
}
@Override
public char[][] getModulesDeclaringPackage(String qualifiedPackageName, String moduleName) {
String qp2 = File.separatorChar == '/' ? qualifiedPackageName : qualifiedPackageName.replace('/', File.separatorChar);
return singletonModuleNameIf(directoryList(qp2) != null);
}
@Override
public boolean hasCompilationUnit(String qualifiedPackageName, String moduleName) {
String qp2 = File.separatorChar == '/' ? qualifiedPackageName : qualifiedPackageName.replace('/', File.separatorChar);
String[] dirList = directoryList(qp2);
if (dirList != null) {
for (String entry : dirList) {
String entryLC = entry.toLowerCase();
if (entryLC.endsWith(SUFFIX_STRING_java) || entryLC.endsWith(SUFFIX_STRING_class))
return true;
}
}
return false;
}
@Override
public boolean hasCUDeclaringPackage(String qualifiedPackageName, Function<CompilationUnit, String> pkgNameExtractor) {
String qp2 = File.separatorChar == '/' ? qualifiedPackageName : qualifiedPackageName.replace('/', File.separatorChar);
String[] directoryList = directoryList(qp2);
if(directoryList == null)
return false;
return Stream.of(directoryList).anyMatch(entry -> {
String entryLC = entry.toLowerCase();
boolean hasDeclaration = false;
String fullPath = this.path + qp2 + "/" + entry;
String pkgName = null;
if (entryLC.endsWith(SUFFIX_STRING_class)) {
return true;
} else if (entryLC.endsWith(SUFFIX_STRING_java)) {
CompilationUnit cu = new CompilationUnit(null, fullPath, this.encoding);
pkgName = pkgNameExtractor.apply(cu);
}
if (pkgName != null && pkgName.equals(qp2.replace(File.separatorChar, '.')))
hasDeclaration = true;
return hasDeclaration;
});
}
@Override
public char[][] listPackages() {
Set<String> packageNames = new HashSet<>();
try {
Path basePath = FileSystems.getDefault().getPath(this.path);
Files.walkFileTree(basePath, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
if (file.toString().toLowerCase().endsWith(SUFFIX_STRING_class)) {
packageNames.add(file.getParent().relativize(basePath).toString().replace('/', '.'));
}
return FileVisitResult.CONTINUE;
}
});
} catch (IOException e) {
}
return packageNames.stream().map(String::toCharArray).toArray(char[][]::new);
}
@Override
public void reset() {
super.reset();
this.directoryCache = new Hashtable(11);
}
@Override
public String toString() {
return "ClasspathDirectory " + this.path;
}
@Override
public char[] normalizedPath() {
if (this.normalizedPath == null) {
this.normalizedPath = this.path.toCharArray();
if (File.separatorChar == '\\') {
CharOperation.replace(this.normalizedPath, '\\', '/');
}
}
return this.normalizedPath;
}
@Override
public String getPath() {
return this.path;
}
@Override
public int getMode() {
return this.mode;
}
@Override
public IModule getModule() {
return this.module;
}
}
ClasspathDirectory
directoryCache: Hashtable
options: Map
