/**
* @param ctx Kernal context.
* @param cfg Ignite configuration.
* @param providers Plugin providers.
*/
@SuppressWarnings("TypeMayBeWeakened")
public IgnitePluginProcessor(
GridKernalContext ctx, IgniteConfiguration cfg, List<PluginProvider> providers) {
super(ctx);
ExtensionRegistryImpl registry = new ExtensionRegistryImpl();
for (PluginProvider provider : providers) {
GridPluginContext pluginCtx = new GridPluginContext(ctx, cfg);
if (F.isEmpty(provider.name())) throw new IgniteException("Plugin name can not be empty.");
if (plugins.containsKey(provider.name()))
throw new IgniteException("Duplicated plugin name: " + provider.name());
plugins.put(provider.name(), provider);
pluginCtxMap.put(provider, pluginCtx);
provider.initExtensions(pluginCtx, registry);
if (provider.plugin() == null) throw new IgniteException("Plugin is null.");
}
extensions = registry.createExtensionMap();
}
/** {@inheritDoc} */
@Override
public void onDiscoveryDataReceived(UUID nodeId, UUID rmtNodeId, Serializable data) {
Map<String, Serializable> discData = (Map<String, Serializable>) data;
if (discData != null) {
for (Map.Entry<String, Serializable> e : discData.entrySet()) {
PluginProvider provider = plugins.get(e.getKey());
if (provider != null) provider.receiveDiscoveryData(nodeId, e.getValue());
else U.warn(log, "Received discovery data for unknown plugin: " + e.getKey());
}
}
}
/** Print plugins information. */
private void ackPluginsInfo() {
U.quietAndInfo(log, "Configured plugins:");
if (plugins.isEmpty()) {
U.quietAndInfo(log, " ^-- None");
U.quietAndInfo(log, "");
} else {
for (PluginProvider plugin : plugins.values()) {
U.quietAndInfo(log, " ^-- " + plugin.name() + " " + plugin.version());
U.quietAndInfo(log, " ^-- " + plugin.copyright());
U.quietAndInfo(log, "");
}
}
}
/**
* @param cls Component class.
* @param <T> Component type.
* @return Component class instance or {@code null} if no one plugin override this component.
*/
public <T> T createComponent(Class<T> cls) {
for (PluginProvider plugin : plugins.values()) {
PluginContext ctx = pluginContextForProvider(plugin);
T comp = (T) plugin.createComponent(ctx, cls);
if (comp != null) return comp;
}
return null;
}
/** {@inheritDoc} */
@Nullable
@Override
public Serializable collectDiscoveryData(UUID nodeId) {
HashMap<String, Serializable> discData = null;
for (Map.Entry<String, PluginProvider> e : plugins.entrySet()) {
Serializable data = e.getValue().provideDiscoveryData(nodeId);
if (data != null) {
if (discData == null) discData = new HashMap<>();
discData.put(e.getKey(), data);
}
}
return discData;
}
/** @return All plugin providers. */
public Collection<PluginProvider> allProviders() {
return plugins.values();
}
/**
* @param name Plugin name.
* @return Plugin provider.
*/
@SuppressWarnings("unchecked")
@Nullable
public <T extends PluginProvider> T pluginProvider(String name) {
return (T) plugins.get(name);
}
/**
* @param provider Plugin context.
* @return Plugin context.
*/
@SuppressWarnings("unchecked")
public <T extends PluginContext> T pluginContextForProvider(PluginProvider provider) {
return (T) pluginCtxMap.get(provider);
}
