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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.application.container;
import com.yahoo.api.annotations.Beta;
import com.google.inject.AbstractModule;
import com.google.inject.Module;
import com.google.inject.name.Names;
import com.yahoo.application.Networking;
import com.yahoo.application.container.handler.Request;
import com.yahoo.application.container.handler.Response;
import com.yahoo.application.container.impl.ClassLoaderOsgiFramework;
import com.yahoo.application.container.impl.StandaloneContainerRunner;
import com.yahoo.component.AbstractComponent;
import com.yahoo.component.provider.ComponentRegistry;
import com.yahoo.config.model.ConfigModelRepo;
import com.yahoo.container.Container;
import com.yahoo.container.standalone.StandaloneContainerApplication;
import com.yahoo.docproc.jdisc.DocumentProcessingHandler;
import com.yahoo.io.IOUtils;
import com.yahoo.jdisc.handler.RequestHandler;
import com.yahoo.jdisc.test.TestDriver;
import com.yahoo.processing.handler.ProcessingHandler;
import com.yahoo.search.handler.SearchHandler;
import java.nio.file.Path;
/**
* A JDisc Container configured from XML.
*
* @author Tony Vaagenes
* @author Einar M R Rosenvinge
* @author gjoranv
*/
@Beta
public final class JDisc implements AutoCloseable {
private final ClassLoaderOsgiFramework osgiFramework = new ClassLoaderOsgiFramework();
private final TestDriver testDriver;
@SuppressWarnings("unused")
private final StandaloneContainerApplication application;
private final Container container = Container.get(); // TODO: This is indeed temporary ... *3 years later* indeed.
private final Path path;
private final boolean deletePathWhenClosing;
private JDisc(Path path, boolean deletePathWhenClosing, Networking networking, ConfigModelRepo configModelRepo) {
this.path = path;
this.deletePathWhenClosing = deletePathWhenClosing;
testDriver = TestDriver.newInstance(osgiFramework, "", false, //StandaloneContainerApplication.class,
bindings(path, configModelRepo, networking));
application = (StandaloneContainerApplication) testDriver.application();
}
private Module bindings(Path path, ConfigModelRepo configModelRepo, Networking networking) {
return new AbstractModule() {
@Override
protected void configure() {
bind(Path.class).annotatedWith(StandaloneContainerApplication.APPLICATION_PATH_NAME).toInstance(path);
bind(ConfigModelRepo.class).annotatedWith(StandaloneContainerApplication.CONFIG_MODEL_REPO_NAME).toInstance(configModelRepo);
bind(Boolean.class).annotatedWith( // below is an ugly hack to access fields from a scala object.
Names.named(StandaloneContainerApplication.DISABLE_NETWORKING_ANNOTATION)).toInstance(
networking == Networking.disable);
}
};
}
/**
* Factory method to create a JDisc from an XML String. Note that any components that are referenced in
* the XML must be present on the classpath. To deploy OSGi bundles in memory,
* use {@link #fromPath(java.nio.file.Path, com.yahoo.application.Networking)}.
*
* @param xml the XML configuration to use
* @return a new JDisc instance
*/
public static JDisc fromServicesXml(String xml, Networking networking) {
Path applicationDir = StandaloneContainerRunner.createApplicationPackage(xml);
return new JDisc(applicationDir, true, networking, new ConfigModelRepo());
}
/**
* Factory method to create a JDisc from an application package.
* This method allows deploying OSGi bundles(contained in the components subdirectory).
* All the OSGi bundles will share the same class loader.
*
*
*
* @param path the reference to the application package to use
* @param networking enabled or disabled
* @return a new JDisc instance
*/
public static JDisc fromPath(Path path, Networking networking) {
return new JDisc(path, false, networking, new ConfigModelRepo());
}
/**
* Create a jDisc instance which is given a config model repo (in which (mock) content clusters
* can be looked up).
*/
public static JDisc fromPath(Path path, Networking networking, ConfigModelRepo configModelRepo) {
return new JDisc(path, false, networking, configModelRepo);
}
/**
* Returns a {@link Search}, used to perform search query operations on this container.
*
* @return a Search instance
* @throws UnsupportedOperationException if this JDisc does not have search configured
*/
public Search search() {
SearchHandler searchHandler = getSearchHandler();
if (searchHandler == null)
throw new UnsupportedOperationException("This JDisc does not have 'search' " + "configured.");
return new Search(searchHandler);
}
private SearchHandler getSearchHandler() {
for (RequestHandler h : container.getRequestHandlerRegistry().allComponents()) {
if (h instanceof SearchHandler) {
return (SearchHandler) h;
}
}
return null;
}
/**
* Returns a {@link Processing}, used to do generic asynchronous operations in a request/response API.
*
* @return a Processing instance
* @throws UnsupportedOperationException if this JDisc does not have processing configured
*/
public Processing processing() {
ProcessingHandler processingHandler = (ProcessingHandler) container
.getRequestHandlerRegistry()
.getComponent(ProcessingHandler.class.getName());
if (processingHandler == null) {
throw new UnsupportedOperationException("This JDisc does not have 'processing' configured.");
}
return new Processing(processingHandler);
}
/**
* Returns a {@link DocumentProcessing}, used to process objects of type {@link com.yahoo.document.Document},
* {@link com.yahoo.document.DocumentRemove} and {@link com.yahoo.document.DocumentUpdate}.
*
* @return a DocumentProcessing instance
* @throws UnsupportedOperationException if this JDisc does not have document processing configured
*/
public DocumentProcessing documentProcessing() {
DocumentProcessingHandler docprocHandler = (DocumentProcessingHandler) container
.getRequestHandlerRegistry()
.getComponent(DocumentProcessingHandler.class.getName());
if (docprocHandler == null) {
throw new UnsupportedOperationException("This JDisc does not have 'document-processing' configured.");
}
return new DocumentProcessing(docprocHandler);
}
/**
* Returns a registry of all components available in this
*/
public ComponentRegistry<AbstractComponent> components() {
return container.getComponentRegistry();
}
/**
* Handles the given {@link com.yahoo.application.container.handler.Request} by passing it to the {@link RequestHandler}
* that is bound to the request's URI.
*
* @param request the request to process
* @return a response for the given request
*/
public Response handleRequest(Request request) {
SynchronousRequestResponseHandler handler = new SynchronousRequestResponseHandler();
return handler.handleRequest(request, testDriver);
}
/**
* Closes the current JDisc.
*/
@Override
public void close() {
try {
testDriver.close();
} finally {
Container.resetInstance();
if (deletePathWhenClosing)
IOUtils.recursiveDeleteDir(path.toFile());
}
}
}
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