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/*******************************************************************************
* Copyright (c) 2008 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
*******************************************************************************/
package org.eclipse.equinox.internal.p2.reconciler.dropins;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
import org.eclipse.equinox.internal.provisional.p2.artifact.repository.IArtifactRepository;
import org.eclipse.equinox.internal.provisional.p2.artifact.repository.IArtifactRepositoryManager;
import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
import org.eclipse.equinox.internal.provisional.p2.core.repository.IRepository;
import org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener;
import org.eclipse.equinox.internal.provisional.p2.metadata.repository.IMetadataRepository;
import org.eclipse.equinox.internal.provisional.p2.metadata.repository.IMetadataRepositoryManager;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
public class DropinsRepositoryListener extends RepositoryListener {
private static final String JAR = ".jar"; //$NON-NLS-1$
private static final String LINK = ".link"; //$NON-NLS-1$
private static final String ZIP = ".zip"; //$NON-NLS-1$
private static final String LINKS_PATH = "path"; //$NON-NLS-1$
private static final String DROPIN_ARTIFACT_REPOSITORIES = "dropin.artifactRepositories"; //$NON-NLS-1$
private static final String DROPIN_METADATA_REPOSITORIES = "dropin.metadataRepositories"; //$NON-NLS-1$
private static final String PIPE = "|"; //$NON-NLS-1$
private BundleContext context;
private List metadataRepositories = new ArrayList();
private List artifactRepositories = new ArrayList();
public DropinsRepositoryListener(BundleContext context, String repositoryName) {
super(context, repositoryName);
this.context = context;
}
public boolean isInterested(File file) {
if (file.isDirectory())
return true;
String name = file.getName();
return name.endsWith(JAR) || name.endsWith(ZIP) || name.endsWith(LINK);
}
public boolean added(File file) {
if (super.added(file))
return true;
URL repositoryURL = createRepositoryURL(file);
if (repositoryURL != null) {
loadMetadataRepository(repositoryURL);
loadArtifactRepository(repositoryURL);
}
return true;
}
public boolean changed(File file) {
if (super.changed(file))
return true;
URL repositoryURL = createRepositoryURL(file);
if (repositoryURL != null) {
loadMetadataRepository(repositoryURL);
loadArtifactRepository(repositoryURL);
}
return true;
}
private String getLinkPath(File file) {
Properties links = new Properties();
try {
InputStream input = new BufferedInputStream(new FileInputStream(file));
try {
links.load(input);
} finally {
input.close();
}
} catch (IOException e) {
// ignore
}
String path = links.getProperty(LINKS_PATH);
if (path == null) {
// log
return null;
}
// parse out link information
if (path.startsWith("r ")) { //$NON-NLS-1$
path = path.substring(2).trim();
} else if (path.startsWith("rw ")) { //$NON-NLS-1$
path = path.substring(3).trim();
} else {
path = path.trim();
}
return path;
}
private URL createRepositoryURL(File file) {
try {
if (file.getName().endsWith(LINK)) {
File linkFile = file;
String path = getLinkPath(linkFile);
// todo log
if (path == null)
return null;
file = new File(path);
if (!file.isAbsolute()) {
// link support is relative to the install root
// For now we will use the parent of dropins folder
file = new File(Activator.getDropinsDirectory().getParentFile(), path);
}
}
File canonicalFile = file.getCanonicalFile();
URL repositoryURL = canonicalFile.toURL();
if (canonicalFile.getName().endsWith(ZIP) || canonicalFile.getName().endsWith(JAR)) {
repositoryURL = new URL("jar:" + repositoryURL.toString() + "!/"); //$NON-NLS-1$ //$NON-NLS-2$
}
return repositoryURL;
} catch (IOException e) {
// todo log
}
return null;
}
public void loadMetadataRepository(URL repoURL) {
try {
metadataRepositories.add(Activator.loadMetadataRepository(repoURL));
} catch (ProvisionException e) {
//TODO: log
// ignore
}
}
public void loadArtifactRepository(URL repoURL) {
try {
artifactRepositories.add(Activator.loadArtifactRepository(repoURL));
} catch (ProvisionException e) {
//TODO: log
// ignore
}
}
public void stopPoll() {
synchronizeDropinMetadataRepositories();
synchronizeDropinArtifactRepositories();
super.stopPoll();
}
private void synchronizeDropinMetadataRepositories() {
List currentRepositories = new ArrayList();
for (Iterator it = metadataRepositories.iterator(); it.hasNext();) {
IMetadataRepository repository = (IMetadataRepository) it.next();
String urlString = repository.getLocation().toExternalForm();
currentRepositories.add(urlString);
}
List previousRepositories = getListRepositoryProperty(getMetadataRepository(), DROPIN_METADATA_REPOSITORIES);
for (Iterator iterator = previousRepositories.iterator(); iterator.hasNext();) {
String repository = (String) iterator.next();
if (!currentRepositories.contains(repository))
removeMetadataRepository(repository);
}
setListRepositoryProperty(getMetadataRepository(), DROPIN_METADATA_REPOSITORIES, currentRepositories);
}
private void removeMetadataRepository(String urlString) {
ServiceReference reference = context.getServiceReference(IMetadataRepositoryManager.class.getName());
IMetadataRepositoryManager manager = null;
if (reference != null)
manager = (IMetadataRepositoryManager) context.getService(reference);
if (manager == null)
throw new IllegalStateException(Messages.metadata_repo_manager_not_registered);
try {
manager.removeRepository(new URL(urlString));
} catch (MalformedURLException e) {
// TODO: log
// ignore
} finally {
context.ungetService(reference);
}
}
private void synchronizeDropinArtifactRepositories() {
List currentRepositories = new ArrayList();
for (Iterator it = artifactRepositories.iterator(); it.hasNext();) {
IArtifactRepository repository = (IArtifactRepository) it.next();
String urlString = repository.getLocation().toExternalForm();
currentRepositories.add(urlString);
}
List previousRepositories = getListRepositoryProperty(getArtifactRepository(), DROPIN_ARTIFACT_REPOSITORIES);
for (Iterator iterator = previousRepositories.iterator(); iterator.hasNext();) {
String repository = (String) iterator.next();
if (!currentRepositories.contains(repository))
removeArtifactRepository(repository);
}
setListRepositoryProperty(getArtifactRepository(), DROPIN_ARTIFACT_REPOSITORIES, currentRepositories);
}
public void removeArtifactRepository(String urlString) {
ServiceReference reference = context.getServiceReference(IArtifactRepositoryManager.class.getName());
IArtifactRepositoryManager manager = null;
if (reference != null)
manager = (IArtifactRepositoryManager) context.getService(reference);
if (manager == null)
throw new IllegalStateException(Messages.artifact_repo_manager_not_registered);
try {
manager.removeRepository(new URL(urlString));
} catch (MalformedURLException e) {
//TODO: log
// ignore
} finally {
context.ungetService(reference);
}
}
private List getListRepositoryProperty(IRepository repository, String key) {
List listProperty = new ArrayList();
String dropinRepositories = (String) repository.getProperties().get(key);
if (dropinRepositories != null) {
StringTokenizer tokenizer = new StringTokenizer(dropinRepositories, PIPE); //$NON-NLS-1$
while (tokenizer.hasMoreTokens()) {
listProperty.add(tokenizer.nextToken());
}
}
return listProperty;
}
private void setListRepositoryProperty(IRepository repository, String key, List listProperty) {
StringBuffer buffer = new StringBuffer();
for (Iterator it = listProperty.iterator(); it.hasNext();) {
String repositoryString = (String) it.next();
buffer.append(repositoryString);
if (it.hasNext())
buffer.append(PIPE);
}
String value = (buffer.length() == 0) ? null : buffer.toString();
repository.setProperty(key, value);
}
public IMetadataRepository[] getMetadataRepositories() {
List result = new ArrayList(metadataRepositories);
result.add(getMetadataRepository());
return (IMetadataRepository[]) result.toArray(new IMetadataRepository[0]);
}
}
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