### Внедрение зависимостей { #dependency-injection }

FastAPI включает в себя чрезвычайно простую в использовании, но чрезвычайно мощную систему <abbr title='известную как: "components", "resources", "services", "providers"'><strong>Внедрения зависимостей</strong></abbr>.

* Даже зависимости могут иметь зависимости, создавая иерархию или **«граф» зависимостей**.

    - [Cluster Autoscaler](#cluster-autoscaler)
    - [Deployment](#deployment)
    - [Federation](#federation)
    - [Internal Storage Layer](#internal-storage-layer)
    - [Node Components](#node-components)
    - [kubectl](#kubectl)
    - [RBAC](#rbac)
    - [Scheduling](#scheduling)
    - [Service](#service)
    - [StatefulSet](#statefulset)
    - [Volumes](#volumes)

    A --> C[Persistent Handles]
    C --> D[Multi-Channel]
    D --> E[RDMA Support]
    C --> F[Witness Protocol]
    D --> F
```

## Testing Strategy

### Unit Tests
- Individual component testing for each feature
- Mock-based testing for protocol interactions
- State machine validation

### Integration Tests
- Feature interaction testing
- Network failure simulation
- Performance benchmarking

        System.out.printf("Analyzed %d POMs%n%n", totalPoms);

        // First, get all paths
        List<PathAnalysis> allPaths = getPathAnalysisSorted();

        // Create groups based on the final path component
        Map<String, List<PathAnalysis>> groupedPaths = new HashMap<>();
        Map<String, Map<String, Long>> groupValueFrequencies = new HashMap<>();

        for (PathAnalysis path : allPaths) {

        MojoExecutionConfigurator mojoExecutionConfigurator = mojoExecutionConfigurators.get(configuratorId);

        if (mojoExecutionConfigurator == null) {
            //
            // The plugin has a custom component configurator but does not have a custom mojo execution configurator
            // so fall back to the default mojo execution configurator.
            //

import org.apache.maven.api.services.Sources;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;
import org.apache.maven.impl.standalone.ApiRunner;
import org.codehaus.plexus.components.secdispatcher.Dispatcher;
import org.codehaus.plexus.components.secdispatcher.internal.dispatchers.LegacyDispatcher;
import org.eclipse.aether.internal.impl.DefaultPathProcessor;
import org.eclipse.aether.internal.impl.DefaultTransporterProvider;

     */
    @Test
    public void testOverallPerformanceRegression() throws Exception {
        System.out.println("=== Critical Performance Fixes Validation ===");

        // Test multiple components together
        long start = System.nanoTime();

        // 1. Connection Pool Test
        SmbTransportPoolImpl pool = new SmbTransportPoolImpl();
        pool.setMaxPoolSize(50);

### Dependency injection

FastAPI'ın inanılmaz derecede kullanımı kolay, fakat inanılmaz derecede güçlü <abbr title='"components", "resources", "services", "providers" olarak da bilinen'><strong>Dependency Injection </strong></abbr> sistemi var.

* Dependencylerin bile dependencies'i olabiliyor, FastAPI bunun  için **graph of "dependency"** yaratıyor.

import org.apache.maven.wagon.proxy.ProxyInfo;
import org.apache.maven.wagon.repository.Repository;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.codehaus.plexus.logging.Logger;
import org.eclipse.aether.ConfigurationProperties;
import org.eclipse.aether.util.ConfigUtils;

 *   <li>Handle timeouts during SMB operations.</li>
 * </ul>
 *
 * <p>
 * The client uses a {@link SmbAuthenticationHolder} to manage SMB authentication credentials.
 * It also integrates with other Fess Crawler components, such as {@link ContentLengthHelper} and
 * {@link MimeTypeHelper}, to handle content length checks and MIME type detection.
 * </p>
 *
 * <p>
 * The class uses JCIFS properties to configure the SMB connection.
 * </p>