io.github.amayaframework.di.scheme.ClassScheme Maven / Gradle / Ivy

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A framework responsible for monitoring and automating the dependency injection process.

There is a newer version: 2.2.0

package io.github.amayaframework.di.scheme;

import io.github.amayaframework.di.Artifact;

import java.util.Collections;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;

/**
 * A scheme that defines the correspondence between set of artifacts and class.
 */
public final class ClassScheme extends AbstractScheme> {
    private final Set methodSchemes;
    private final Set fieldSchemes;
    private final ConstructorScheme constructorScheme;
    private final Set artifacts;

    /**
     * Constructs class scheme for specified class and schemes for its members.
     *
     * @param clazz             the specified class, must be non-null
     * @param constructorScheme the constructor scheme, may be null
     * @param fieldSchemes      the set of field schemes, must be non-null
     * @param methodSchemes     the set of method schemes, must be non-null
     */
    public ClassScheme(Class clazz,
                       ConstructorScheme constructorScheme,
                       Set fieldSchemes,
                       Set methodSchemes) {
        super(clazz);
        this.constructorScheme = Objects.requireNonNull(constructorScheme);
        this.fieldSchemes = Collections.unmodifiableSet(Objects.requireNonNull(fieldSchemes));
        this.methodSchemes = Collections.unmodifiableSet(Objects.requireNonNull(methodSchemes));
        this.artifacts = Collections.unmodifiableSet(collectArtifacts());
    }

    private Set collectArtifacts() {
        var ret = new HashSet<>(constructorScheme.artifacts);
        for (var scheme : fieldSchemes) {
            ret.add(scheme.artifact);
        }
        for (var scheme : methodSchemes) {
            ret.addAll(scheme.artifacts);
        }
        return ret;
    }

    /**
     * Returns the constructor scheme for class constructor.
     *
     * @return the constructor scheme.
     */
    public ConstructorScheme getConstructorScheme() {
        return constructorScheme;
    }

    /**
     * Returns the set of field schemes for class fields.
     *
     * @return the set of field schemes
     */
    public Set getFieldSchemes() {
        return fieldSchemes;
    }

    /**
     * Returns the set of method schemes for class methods.
     *
     * @return the set of method schemes
     */
    public Set getMethodSchemes() {
        return methodSchemes;
    }

    /**
     * Returns all artifacts that class members depend on.
     *
     * @return the set of artifacts
     */
    @Override
    public Set getArtifacts() {
        return artifacts;
    }

    @Override
    public String toString() {
        return "ClassScheme{" +
                "methodSchemes=" + methodSchemes +
                ", fieldSchemes=" + fieldSchemes +
                ", constructorScheme=" + constructorScheme +
                ", target=" + target +
                '}';
    }
}