private Set<App> whatRequires(String dependency, Set<String> visited) {
final String mavenSettingsFile = settings.get("apps.settings", DEFAULT_SETTINGS);
final boolean useMavenCentral = settings.getAsBoolean("apps.usemavencentral", Boolean.TRUE);
final String[] defaultExcludes = settings.getAsArray("apps.excludes", DEFAULT_EXCLUDE);
Set<App> foundDeps = Sets.newHashSet();
for (App app : artifactApps.values()) {
MavenDependencyExclusion[] exclusions = new MavenDependencyExclusion[defaultExcludes.length];
for (int i = 0; i < defaultExcludes.length; i++) {
exclusions[i] = MavenDependencies.createExclusion(defaultExcludes[i]);
}
MavenDependency dep =
MavenDependencies.createDependency(
app.getCanonicalForm(), ScopeType.RUNTIME, false, exclusions);
MavenResolvedArtifact[] artifacts =
Maven.configureResolver()
.fromFile(mavenSettingsFile)
.addDependencies(dep)
.resolve()
.withMavenCentralRepo(useMavenCentral)
.withTransitivity()
.asResolvedArtifact();
if (artifacts != null && artifacts.length > 0) {
visited.add(artifacts[0].getCoordinate().toCanonicalForm());
for (MavenResolvedArtifact artifact : artifacts) {
String artifactName = artifact.getCoordinate().toCanonicalForm();
if (artifactName.startsWith(dependency)) {
foundDeps.add(app);
} else if (!visited.contains(artifactName)) {
visited.add(artifactName);
foundDeps.addAll(whatRequires(artifactName, visited));
}
}
}
}
return foundDeps;
}
private Set<DependencyInfo> dependencyTree(
String dependency, Set<DependencyInfo> visited, int level) {
final String mavenSettingsFile = settings.get("apps.settings", DEFAULT_SETTINGS);
final boolean useMavenCentral = settings.getAsBoolean("apps.usemavencentral", Boolean.TRUE);
final String[] defaultExcludes = settings.getAsArray("apps.excludes", DEFAULT_EXCLUDE);
MavenDependencyExclusion[] exclusions = new MavenDependencyExclusion[defaultExcludes.length];
for (int i = 0; i < defaultExcludes.length; i++) {
exclusions[i] = MavenDependencies.createExclusion(defaultExcludes[i]);
}
MavenDependency dep =
MavenDependencies.createDependency(dependency, ScopeType.RUNTIME, false, exclusions);
MavenResolvedArtifact[] artifacts =
Maven.configureResolver()
.fromFile(mavenSettingsFile)
.addDependencies(dep)
.resolve()
.withMavenCentralRepo(useMavenCentral)
.withTransitivity()
.asResolvedArtifact();
Set<DependencyInfo> foundDeps = Sets.newLinkedHashSet();
if (artifacts != null && artifacts.length > 0) {
DependencyInfo info = new DependencyInfo(artifacts[0], level);
visited.add(info);
foundDeps.add(info);
for (MavenResolvedArtifact artifact : artifacts) {
String artifactName = artifact.getCoordinate().toCanonicalForm();
info = new DependencyInfo(artifact, level + 1);
if (!visited.contains(info)) {
visited.add(info);
foundDeps.add(info);
foundDeps.addAll(dependencyTree(artifactName, visited, level + 1));
}
}
}
return foundDeps;
}
/**
* Helper method for loading artifacts and building a map of the artifact-based apps.
*
* @param artifacts the artifacts that will be checked for ES plugins
* @return a map of artifacts
*/
private Map<String, ArtifactApp> loadArtifacts(MavenResolvedArtifact[] artifacts) {
Map<String, ArtifactApp> map = newHashMap();
// no artifacts?
if (artifacts == null) {
logger.debug("no artifacts to load");
return map;
}
// Now we want to know the relationship between class path and JAR.
// build an URL map to assign found plugin on classpath to artifact
Map<URI, MavenResolvedArtifact> jars = newHashMap();
for (MavenResolvedArtifact artifact : artifacts) {
if (artifact.getCoordinate().getType().equals(PackagingType.JAR)) {
try {
URI uri = artifact.asFile().toURI();
classLoader.addUri(uri);
jars.put(uri, artifact);
} catch (Exception e) {
logger.warn("failed to add [{}]", artifact.getCoordinate(), e);
}
} else {
logger.warn("not a jar artifact: [{}]", artifact.getCoordinate());
}
}
// now, that everything is on the class path, build the artifact app map.
Enumeration<URL> propUrls = null;
try {
propUrls = classLoader.getResources(DEFAULT_RESOURCE);
} catch (IOException e1) {
logger.warn("failed to find resources on classpath", e1);
return map;
}
while (propUrls.hasMoreElements()) {
URL propUrl = propUrls.nextElement();
Properties appProps = new Properties();
InputStream is = null;
try {
is = propUrl.openStream();
appProps.load(is);
String appClassName = appProps.getProperty("plugin");
Plugin plugin = instantiatePluginClass(appClassName);
// lookup for artifact in the jars map
if (jars != null) {
// find URL of artifact
boolean found = false;
for (URI appUri : jars.keySet()) {
if (propUrl.toExternalForm().startsWith("jar:" + appUri.toString())) {
ArtifactApp app = new ArtifactApp(appUri.toURL(), jars.get(appUri), plugin);
map.put(app.getCanonicalForm(), app);
found = true;
}
}
if (!found) {
logger.warn("can't find artifact jar for " + propUrl + ", skipping");
}
}
} catch (Exception e) {
logger.warn("failed to load artifact from [" + propUrl + "]", e);
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
// ignore
}
}
}
}
return map;
}