org.opalj.hermes.queries.ClassLoaderAPIUsage.scala Maven / Gradle / Ivy

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/* BSD 2-Clause License - see OPAL/LICENSE for details. */
package org.opalj
package hermes
package queries

import org.opalj.collection.immutable.Chain
import org.opalj.br.MethodDescriptor.JustTakes
import org.opalj.br.MethodDescriptor.NoArgsAndReturnVoid
import org.opalj.br.ObjectType
import org.opalj.hermes.queries.util.APIClassExtension
import org.opalj.hermes.queries.util.APIFeature
import org.opalj.hermes.queries.util.APIFeatureGroup
import org.opalj.hermes.queries.util.APIFeatureQuery
import org.opalj.hermes.queries.util.InstanceAPIMethod
import org.opalj.hermes.queries.util.StaticAPIMethod

/**
 * Extracts calls to the `java.lang.ClassLoader` API.
 *
 * @author Michael Reif
 */
class ClassLoaderAPIUsage(implicit hermes: HermesConfig) extends APIFeatureQuery {

    override val apiFeatures: Chain[APIFeature] = {

        val ClassLoader = ObjectType("java/lang/ClassLoader")

        Chain(
            APIClassExtension("custom ClassLoader implementation", ClassLoader),

            APIFeatureGroup(
                Chain(
                    StaticAPIMethod(ClassLoader, "getSystemClassLoader"),
                    InstanceAPIMethod(ClassLoader, "", NoArgsAndReturnVoid)
                ),
                "Retrieving the SystemClassLoader"
            ),

            APIFeatureGroup(
                Chain(
                    InstanceAPIMethod(ClassLoader, "", JustTakes(ClassLoader)),
                    InstanceAPIMethod(ObjectType.Class, "getClassLoader")
                ),
                "Retrieving some ClassLoader"
            ),

            APIFeatureGroup(
                Chain(
                    InstanceAPIMethod(ClassLoader, "defineClass"),
                    InstanceAPIMethod(ClassLoader, "definePackage")
                ),
                "define new classes/packages"
            ),

            APIFeatureGroup(
                Chain(
                    InstanceAPIMethod(ClassLoader, "getResource"),
                    InstanceAPIMethod(ClassLoader, "getResourceAsStream"),
                    InstanceAPIMethod(ClassLoader, "getResources"),
                    InstanceAPIMethod(ClassLoader, "getSystemResource"),
                    InstanceAPIMethod(ClassLoader, "getSystemResourceAsStream"),
                    InstanceAPIMethod(ClassLoader, "getSystemResources")
                ),
                "accessing resources"
            )
        )
    }
}