/*******************************************************************************
* Copyright (c) 2012 The PDT Extension Group (https://github.com/pdt-eg)
* 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
******************************************************************************/
package org.pdtextensions.repos.internal.wrapper;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.pdtextensions.repos.FindResult;
import org.pdtextensions.repos.PEXReposPlugin;
import org.pdtextensions.repos.api.IFindResult;
import org.pdtextensions.repos.api.IModule;
import org.pdtextensions.repos.api.IModuleVersion;
import org.pdtextensions.repos.api.IRepositoryProvider;
import org.pdtextensions.repos.api.IRepositoryProviderFactory;
import org.pdtextensions.repos.internal.debug.DebugProvider;
import org.pdtextensions.repos.internal.storage.Provider;
import org.pdtextensions.repos.internal.storage.RepositoryStorage;
/**
* The global repository provider wrapping access to all other repositories.
*
* @author mepeisen
*/
public class GlobalRepositoryProvider implements IRepositoryProvider {
/**
* The global repository provider type.
*/
public static final String TYPE = "GLOBAL";
private List<IRepositoryProvider> providers = new ArrayList<IRepositoryProvider>();
public GlobalRepositoryProvider() {
if (PEXReposPlugin.debug()) {
this.providers.add(new DebugProvider());
}
for (final IRepositoryProviderFactory factory : PEXReposPlugin.getFactories()) {
for (final IRepositoryProvider provider : factory.createDefaultRepositories()) {
this.providers.add(provider);
}
}
for (final Provider provider : RepositoryStorage.instance().providers()) {
for (final IRepositoryProviderFactory factory : PEXReposPlugin.getFactories()) {
if (factory.getType().equals(provider.getType())) {
this.providers.add(factory.recoverPersistent(provider.getUri(), provider.getId()));
break;
}
}
}
}
@Override
public Iterable<IModule> listModules(IProgressMonitor monitor) throws CoreException {
final List<IModule> modules = new ArrayList<IModule>();
for (final IRepositoryProvider provider : this.providers) {
if (monitor.isCanceled()) {
break;
}
for (final IModule module : provider.listModules(monitor)) {
modules.add(module);
}
}
return modules;
}
@Override
public String getType() {
return TYPE;
}
@Override
public String getId() {
return TYPE;
}
public Iterable<IRepositoryProvider> getProviders() {
return Collections.unmodifiableList(this.providers);
}
public void registerProvider(IRepositoryProvider provider) {
if (TYPE.equals(provider.getType())) {
// skip this hack
throw new IllegalArgumentException("Cannot register global provider");
}
if ("DEBUG".equals(provider.getType())) {
// skip this hack
throw new IllegalArgumentException("Cannot register debug provider");
}
if (!provider.getId().startsWith("temp-")) {
// skip this hack
throw new IllegalArgumentException("You need to register temporary providers");
}
final String id = RepositoryStorage.instance().getNextId();
for (final IRepositoryProviderFactory factory : PEXReposPlugin.getFactories()) {
if (factory.getType().equals(provider.getType())) {
factory.persist(provider, id);
break;
}
}
if (!provider.getId().equals(id)) {
// TODO Log
return;
}
RepositoryStorage.instance().addProvider(id, provider.getType(), provider.getUri());
}
public void unregisterProvider(IRepositoryProvider provider) {
RepositoryStorage.instance().removeProvider(provider.getId());
}
@Override
public IFindResult findModule(String vendor, String name, String version, IProgressMonitor monitor) {
final List<IModuleVersion> versions = new ArrayList<IModuleVersion>();
for (final IRepositoryProvider provider : this.providers) {
if (monitor.isCanceled()) {
break;
}
final IFindResult result = provider.findModule(vendor, name, version, monitor);
if (!result.isOk()) {
return result;
}
for (final IModuleVersion v : result.moduleVersions()) {
versions.add(v);
}
}
return new FindResult(Status.OK_STATUS, versions);
}
@Override
public String getUri() {
return TYPE;
}
@Override
public boolean supportsDependencies() {
return true;
}
}