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/*******************************************************************************
* Copyright (c) 2008, 2009 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:
* IBM Corporation - initial API and implementation
* Code 9 - ongoing development
*******************************************************************************/
package org.eclipse.equinox.internal.p2.extensionlocation;
import java.io.*;
import java.net.URI;
import java.util.*;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
import org.eclipse.equinox.internal.provisional.p2.metadata.IArtifactKey;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.Collector;
import org.eclipse.equinox.internal.provisional.spi.p2.repository.AbstractRepository;
import org.eclipse.equinox.p2.metadata.query.IQuery;
import org.eclipse.equinox.p2.repository.artifact.*;
import org.eclipse.osgi.util.NLS;
import org.osgi.framework.BundleContext;
public class ExtensionLocationArtifactRepository extends AbstractRepository implements IFileArtifactRepository, Constants {
public static final String TYPE = "org.eclipse.equinox.p2.extensionlocation.artifactRepository"; //$NON-NLS-1$
public static final Integer VERSION = new Integer(1);
public static final List STANDARD_P2_REPOSITORY_FILE_NAMES = Arrays.asList(new Object[] {"artifacts.xml", "content.xml", "compositeArtifacts.xml", "compositeContent.xml"}); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
IFileArtifactRepository artifactRepository;
private File base;
private Object state = SiteListener.UNINITIALIZED;
/*
* Return the location of a local repository based on
* the given URL.
*/
public static URI getLocalRepositoryLocation(URI location) {
BundleContext context = Activator.getContext();
String stateDirName = Integer.toString(location.toString().hashCode());
File bundleData = context.getDataFile(null);
File stateDir = new File(bundleData, stateDirName);
return stateDir.toURI();
}
/*
* Constructor for the class. Return a new extension location repository based on
* the given url and nested repository.
*/
public ExtensionLocationArtifactRepository(URI location, IFileArtifactRepository repository, IProgressMonitor monitor) throws ProvisionException {
super(Activator.getRepositoryName(location), TYPE, VERSION.toString(), location, null, null, null);
this.artifactRepository = repository;
this.base = getBaseDirectory(location);
}
public synchronized void ensureInitialized() {
if (state == SiteListener.INITIALIZED || state == SiteListener.INITIALIZING)
return;
// if the repo has not been synchronized for us already, synchronize it.
// Note: this will reload "artifactRepository"
SiteListener.synchronizeRepositories(null, this, base);
}
void reload() {
try {
ExtensionLocationArtifactRepository repo = (ExtensionLocationArtifactRepository) new ExtensionLocationArtifactRepositoryFactory().load(getLocation(), 0, null);
artifactRepository = repo.artifactRepository;
base = repo.base;
} catch (ProvisionException e) {
//unexpected
e.printStackTrace();
throw new IllegalStateException(e.getMessage());
}
}
void state(Object value) {
state = value;
}
public static void validate(URI location, IProgressMonitor monitor) throws ProvisionException {
File base = getBaseDirectory(location);
if (new File(base, EXTENSION_LOCATION).exists() || location.getPath().endsWith(EXTENSION_LOCATION))
return;
if (containsUpdateSiteFile(base)) {
String message = NLS.bind(Messages.error_update_site, location.toString());
throw new ProvisionException(new Status(IStatus.ERROR, Activator.ID, ProvisionException.REPOSITORY_NOT_FOUND, message, null));
}
if (containsStandardP2Repository(base)) {
String message = NLS.bind(Messages.error_p2_repository, location.toString());
throw new ProvisionException(new Status(IStatus.ERROR, Activator.ID, ProvisionException.REPOSITORY_NOT_FOUND, message, null));
}
}
private static boolean containsStandardP2Repository(File base) {
File[] foundRepos = base.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return (STANDARD_P2_REPOSITORY_FILE_NAMES.contains(name));
}
});
return foundRepos.length > 0;
}
private static boolean containsUpdateSiteFile(File base) {
String[] fileNames = base.list();
if (fileNames == null)
return false;
for (int i = 0; i < fileNames.length; i++) {
if (fileNames[i].endsWith(DOT_XML) && fileNames[i].indexOf(SITE) != -1)
return true;
}
return false;
}
public static File getBaseDirectory(URI uri) throws ProvisionException {
if (!FILE.equals(uri.getScheme()))
throw new ProvisionException(new Status(IStatus.ERROR, Activator.ID, ProvisionException.REPOSITORY_NOT_FOUND, Messages.not_file_protocol, null));
String path = URIUtil.toFile(uri).getAbsolutePath();
if (path.endsWith(EXTENSION_LOCATION))
path = path.substring(0, path.length() - EXTENSION_LOCATION.length());
File base = new File(path);
if (!base.isDirectory())
throw new ProvisionException(new Status(IStatus.ERROR, Activator.ID, ProvisionException.REPOSITORY_NOT_FOUND, NLS.bind(Messages.not_directory, uri.toString()), null));
if (isBaseDirectory(base))
return base;
File eclipseBase = new File(base, ECLIPSE);
if (isBaseDirectory(eclipseBase))
return eclipseBase;
throw new ProvisionException(new Status(IStatus.ERROR, Activator.ID, ProvisionException.REPOSITORY_NOT_FOUND, NLS.bind(Messages.not_eclipse_extension, uri.toString()), null));
}
private static boolean isBaseDirectory(File base) {
File plugins = new File(base, PLUGINS);
File features = new File(base, FEATURES);
return plugins.isDirectory() || features.isDirectory();
}
public void addDescriptor(IArtifactDescriptor descriptor) {
throw new UnsupportedOperationException();
}
public void addDescriptors(IArtifactDescriptor[] descriptors) {
throw new UnsupportedOperationException();
}
public void removeAll() {
throw new UnsupportedOperationException();
}
public void removeDescriptor(IArtifactDescriptor descriptor) {
throw new UnsupportedOperationException();
}
public void removeDescriptor(IArtifactKey key) {
throw new UnsupportedOperationException();
}
public boolean contains(IArtifactDescriptor descriptor) {
ensureInitialized();
return artifactRepository.contains(descriptor);
}
public boolean contains(IArtifactKey key) {
ensureInitialized();
return artifactRepository.contains(key);
}
public IStatus getArtifact(IArtifactDescriptor descriptor, OutputStream destination, IProgressMonitor monitor) {
ensureInitialized();
return artifactRepository.getArtifact(descriptor, destination, monitor);
}
public IStatus getRawArtifact(IArtifactDescriptor descriptor, OutputStream destination, IProgressMonitor monitor) {
ensureInitialized();
return artifactRepository.getRawArtifact(descriptor, destination, monitor);
}
public IArtifactDescriptor[] getArtifactDescriptors(IArtifactKey key) {
ensureInitialized();
return artifactRepository.getArtifactDescriptors(key);
}
public IStatus getArtifacts(IArtifactRequest[] requests, IProgressMonitor monitor) {
ensureInitialized();
return artifactRepository.getArtifacts(requests, monitor);
}
public OutputStream getOutputStream(IArtifactDescriptor descriptor) throws ProvisionException {
ensureInitialized();
return artifactRepository.getOutputStream(descriptor);
}
public File getArtifactFile(IArtifactKey key) {
ensureInitialized();
return artifactRepository.getArtifactFile(key);
}
public File getArtifactFile(IArtifactDescriptor descriptor) {
ensureInitialized();
return artifactRepository.getArtifactFile(descriptor);
}
public Map getProperties() {
ensureInitialized();
return artifactRepository.getProperties();
}
public String setProperty(String key, String value) {
ensureInitialized();
String oldValue = artifactRepository.setProperty(key, value);
// if the value didn't really change then just return
if (oldValue == value || (oldValue != null && oldValue.equals(value)))
return oldValue;
// we want to re-initialize if we are changing the site policy or plug-in list
if (!SiteListener.SITE_LIST.equals(key) && !SiteListener.SITE_POLICY.equals(key))
return oldValue;
state = SiteListener.UNINITIALIZED;
ensureInitialized();
return oldValue;
}
public IArtifactDescriptor createArtifactDescriptor(IArtifactKey key) {
return artifactRepository.createArtifactDescriptor(key);
}
public Collector query(IQuery query, Collector collector, IProgressMonitor monitor) {
ensureInitialized();
return artifactRepository.query(query, collector, monitor);
}
}
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