/*******************************************************************************
* Copyright (c) 2014, 2014 Bruno Medeiros and other Contributors.
* 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:
* Bruno Medeiros - initial API and implementation
*******************************************************************************/
package dtool.engine;
import java.nio.file.Path;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import melnorme.utilbox.misc.ArrayUtil;
import dtool.ast.definitions.Module;
import dtool.engine.ModuleParseCache.ParseSourceException;
import dtool.engine.modules.BundleModulesVisitor;
import dtool.engine.modules.IModuleResolver;
import dtool.engine.modules.ModuleFullName;
import dtool.parser.DeeParserResult.ParsedModule;
public abstract class AbstractBundleResolution implements IBundleResolution {
protected final SemanticManager manager;
protected final BundleModules bundleModules;
public AbstractBundleResolution(SemanticManager manager, List<Path> importFolders) {
this(manager, manager.new SM_BundleModulesVisitor(importFolders).toBundleModules());
}
public AbstractBundleResolution(SemanticManager manager, BundleModules bundleModules) {
this.manager = manager;
this.bundleModules = bundleModules;
}
public Set<Path> getBundleModuleFiles() {
return bundleModules.moduleFiles;
}
/** @return the absolute path of a module contained in this bundle resolution. */
protected Path getBundleModulePath(ModuleFullName moduleFullName) {
return bundleModules.getModuleAbsolutePath(moduleFullName);
}
@Override
public HashSet<String> findModules(String fullNamePrefix) {
HashSet<String> matchedModules = new HashSet<String>();
findModules(fullNamePrefix, matchedModules);
return matchedModules;
}
protected void findModules(String fullNamePrefix, HashSet<String> matchedModules) {
bundleModules.findModules(fullNamePrefix, matchedModules);
}
/** @return a resolved module from this bundle's full import path (including dependencies). */
public ResolvedModule findResolvedModule(ModuleFullName moduleFullName) throws ParseSourceException {
return getBundleResolvedModule(moduleFullName);
}
public boolean checkIsStale() {
return checkIsModuleListStale() || checkIsModuleContentsStale();
}
public boolean checkIsModuleListStale() {
List<Path> importFolders = bundleModules.importFolders;
BundleModulesVisitor modulesVisitor = manager.new SM_BundleModulesVisitor(importFolders) {
@Override
protected void addModuleEntry(ModuleFullName moduleFullName, Path fullPath) {
moduleFiles.add(fullPath);
}
};
return !modulesVisitor.getModuleFiles().equals(bundleModules.moduleFiles);
}
/* ----------------- ----------------- */
// TODO: proper synchronization - for now assume no concurrent acesss to resolve operations
protected final Map<Path, ResolvedModule> resolvedModules = new HashMap<>();
public synchronized boolean checkIsModuleContentsStale() {
ModuleParseCache parseCache = manager.parseCache;
for (Entry<Path, ResolvedModule> entry : resolvedModules.entrySet()) {
Path path = entry.getKey();
ResolvedModule currentModule = entry.getValue();
ParsedModule parsedModule = parseCache.getEntry(path).getParsedModuleIfNotStale(true);
if(parsedModule == null) {
return true;
}
if(parsedModule != currentModule.parsedModule) {
return true;
}
}
return false;
}
protected ResolvedModule getBundleResolvedModule(String moduleFullName) throws ParseSourceException {
return getBundleResolvedModule(new ModuleFullName(moduleFullName));
}
protected ResolvedModule getBundleResolvedModule(ModuleFullName moduleFullName) throws ParseSourceException {
Path modulePath = getBundleModulePath(moduleFullName);
return modulePath == null ? null : getBundleResolvedModule(modulePath);
}
public synchronized ResolvedModule getBundleResolvedModule(Path filePath) throws ParseSourceException {
ModuleParseCache parseCache = manager.parseCache;
ResolvedModule resolvedModule = resolvedModules.get(filePath);
if(resolvedModule == null) {
ParsedModule parsedModule = parseCache.getParsedModule(filePath);
resolvedModule = new ResolvedModule(parsedModule, this);
resolvedModules.put(filePath, resolvedModule);
}
return resolvedModule;
}
@Override
public Module findModule(String[] packages, String module) throws ParseSourceException {
ModuleFullName moduleFullName = new ModuleFullName(ArrayUtil.concat(packages, module));
ResolvedModule resolvedModule = findResolvedModule(moduleFullName);
return resolvedModule == null ? null : resolvedModule.getModuleNode();
}
public static class ResolvedModule {
protected final ParsedModule parsedModule;
protected final AbstractBundleResolution bundleRes;
public ResolvedModule(ParsedModule parsedModule, AbstractBundleResolution bundleRes) {
this.parsedModule = parsedModule;
this.bundleRes = bundleRes;
}
public ParsedModule getParsedModule() {
return parsedModule;
}
public Module getModuleNode() {
return parsedModule.module;
}
public Path getModulePath() {
return parsedModule.modulePath;
}
public AbstractBundleResolution getSemanticResolution() {
return bundleRes;
}
public IModuleResolver getModuleResolver() {
return bundleRes;
}
}
}