+package org.argeo.slc.osgi.build;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.StringTokenizer;
+import java.util.TreeMap;
+import java.util.jar.JarInputStream;
+import java.util.jar.Manifest;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.SlcException;
+import org.argeo.slc.UnsupportedException;
+import org.argeo.slc.build.BasicNameVersion;
+import org.argeo.slc.build.Distribution;
+import org.argeo.slc.build.ModularDistribution;
+import org.argeo.slc.build.NameVersion;
+import org.argeo.slc.core.build.VersionedResourceDistribution;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.Constants;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.context.ResourceLoaderAware;
+import org.springframework.core.io.ResourceLoader;
+import org.springframework.osgi.context.BundleContextAware;
+
+public class BundleModularDistribution implements ModularDistribution,
+ BundleContextAware, InitializingBean, ResourceLoaderAware {
+ private final static Log log = LogFactory
+ .getLog(BundleModularDistribution.class);
+
+ private BundleContext bundleContext;
+ private ResourceLoader resourceLoader;
+
+ private String libDirectory = "/lib";
+ private EclipseUpdateSite eclipseUpdateSite;
+
+ /** Initialized by the object itself. */
+ private SortedMap<NameVersion, VersionedResourceDistribution> distributions = new TreeMap<NameVersion, VersionedResourceDistribution>();
+
+ public Distribution getModuleDistribution(String moduleName,
+ String moduleVersion) {
+ return distributions
+ .get(new BasicNameVersion(moduleName, moduleVersion));
+ // URL url = findModule(moduleName, moduleVersion);
+ // return new ResourceDistribution(new UrlResource(url));
+ }
+
+ @SuppressWarnings(value = { "unchecked" })
+ protected URL findModule(String moduleName, String version) {
+ Enumeration<URL> urls = (Enumeration<URL>) bundleContext.getBundle()
+ .findEntries(libDirectory, moduleName + "*", false);
+
+ if (!urls.hasMoreElements())
+ throw new SlcException("Cannot find module " + moduleName);
+
+ URL url = urls.nextElement();
+
+ // TODO: check version as well
+ if (urls.hasMoreElements())
+ throw new SlcException("More than one module with name "
+ + moduleName);
+ return url;
+ }
+
+ public String getDistributionId() {
+ return bundleContext.getBundle().getSymbolicName()
+ + "-"
+ + bundleContext.getBundle().getHeaders().get(
+ Constants.BUNDLE_VERSION);
+ }
+
+ public Set<NameVersion> listModulesNameVersions() {
+ return distributions.keySet();
+ }
+
+ public void setBundleContext(BundleContext bundleContext) {
+ this.bundleContext = bundleContext;
+ }
+
+ @SuppressWarnings(value = { "unchecked" })
+ public void afterPropertiesSet() throws Exception {
+ Enumeration<URL> urls = (Enumeration<URL>) bundleContext.getBundle()
+ .findEntries(libDirectory, "*.jar", false);
+ while (urls.hasMoreElements()) {
+ URL url = urls.nextElement();
+ JarInputStream in = null;
+ try {
+ in = new JarInputStream(url.openStream());
+ Manifest mf = in.getManifest();
+ String name = mf.getMainAttributes().getValue(
+ Constants.BUNDLE_SYMBOLICNAME);
+ // Skip additional specs such as
+ // ; singleton:=true
+ if (name.indexOf(';') > -1) {
+ name = new StringTokenizer(name, " ;").nextToken();
+ }
+
+ String version = mf.getMainAttributes().getValue(
+ Constants.BUNDLE_VERSION);
+ BasicNameVersion nameVersion = new BasicNameVersion(name,
+ version);
+ distributions.put(nameVersion,
+ new VersionedResourceDistribution(name, version,
+ resourceLoader.getResource(url.toString())));
+ } finally {
+ IOUtils.closeQuietly(in);
+ }
+ }
+ if (log.isDebugEnabled())
+ log.debug("Distribution " + getName() + ":" + getVersion()
+ + " loaded (" + distributions.size() + " modules)");
+
+ }
+
+ protected String findVersion(String name) {
+ Set<String> versions = new HashSet<String>();
+ for (NameVersion key : distributions.keySet()) {
+ if (key.getName().equals(name))
+ versions.add(key.getVersion());
+ }
+
+ if (versions.size() == 0)
+ throw new SlcException("Cannot find version for name " + name);
+ else if (versions.size() > 1)
+ throw new SlcException("Found more than one version for name "
+ + name + ": " + versions);
+ else
+ return versions.iterator().next();
+
+ }
+
+ public void setLibDirectory(String libDirectory) {
+ this.libDirectory = libDirectory;
+ }
+
+ public Object getDescriptor(String descriptorType) {
+ if (descriptorType.equals("eclipse"))
+ return writeEclipseUpdateSite();
+ else
+ throw new UnsupportedException("descriptorType", descriptorType);
+ }
+
+ protected Set<NameVersion> writePlainUrlList() {
+ return distributions.keySet();
+ }
+
+ protected String writeEclipseUpdateSite() {
+ if (eclipseUpdateSite == null)
+ throw new SlcException("No eclipse update site declared.");
+
+ StringBuffer buf = new StringBuffer("");
+ buf.append("<site>");
+
+ List<EclipseUpdateSiteCategory> usedCategories = new ArrayList<EclipseUpdateSiteCategory>();
+ for (EclipseUpdateSiteFeature feature : eclipseUpdateSite.getFeatures()) {
+
+ String featureId = feature.getName();
+ String featureVersion = findVersion(featureId);
+ buf.append("<feature");
+ buf.append(" url=\"features/").append(featureId).append('_')
+ .append(featureVersion).append(".jar\"");
+ buf.append(" id=\"").append(featureId).append("\"");
+ buf.append(" version=\"").append(featureVersion).append("\"");
+ buf.append(">\n");
+
+ for (EclipseUpdateSiteCategory category : feature.getCategories()) {
+ usedCategories.add(category);
+ buf.append(" <category name=\"").append(category.getName())
+ .append("\"/>\n");
+ }
+ buf.append("</feature>\n\n");
+ }
+
+ for (EclipseUpdateSiteCategory category : usedCategories) {
+ buf.append("<category-def");
+ buf.append(" name=\"").append(category.getName()).append("\"");
+ buf.append(" label=\"").append(category.getLabel()).append("\"");
+ buf.append(">\n");
+ buf.append(" <description>").append(category.getDescription())
+ .append("</description>\n");
+ buf.append("</category-def>\n\n");
+ }
+
+ buf.append("</site>");
+ return buf.toString();
+ }
+
+ public void setResourceLoader(ResourceLoader resourceLoader) {
+ this.resourceLoader = resourceLoader;
+ }
+
+ public String getName() {
+ return bundleContext.getBundle().getSymbolicName();
+ }
+
+ public String getVersion() {
+ return bundleContext.getBundle().getHeaders().get(
+ Constants.BUNDLE_VERSION).toString();
+ }
+
+ @Override
+ public String toString() {
+ return new BasicNameVersion(this).toString();
+ }
+
+ public void setEclipseUpdateSite(EclipseUpdateSite eclipseUpdateSite) {
+ this.eclipseUpdateSite = eclipseUpdateSite;
+ }
+
+}
projects / gpl / argeo-slc.git / commitdiff