gradle-master/subprojects/tooling-api/src/main/java/org/gradle/tooling/internal/consumer/connection/InternalBuildActionAdapter.java
/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.tooling.internal.consumer.connection;

import org.gradle.tooling.BuildAction;
import org.gradle.tooling.BuildController;
import org.gradle.tooling.internal.adapter.ProtocolToModelAdapter;
import org.gradle.tooling.internal.consumer.converters.ConsumerTargetTypeProvider;
import org.gradle.tooling.internal.consumer.versioning.ModelMapping;
import org.gradle.tooling.internal.consumer.versioning.VersionDetails;
import org.gradle.tooling.internal.protocol.InternalActionAwareBuildController;
import org.gradle.tooling.internal.protocol.InternalBuildActionVersion2;
import org.gradle.tooling.internal.protocol.InternalBuildControllerVersion2;

import java.io.File;

/**
 * Adapter to create {@link org.gradle.tooling.internal.protocol.InternalBuildAction}
 * from an instance of {@link org.gradle.tooling.BuildAction}.
 * Used by consumer connections 1.8+.
 */
@SuppressWarnings("deprecation")
public class InternalBuildActionAdapter<T> implements org.gradle.tooling.internal.protocol.InternalBuildAction<T>, InternalBuildActionVersion2<T> {
    private final BuildAction<? extends T> action;
    private final File rootDir;
    private final VersionDetails versionDetails;

    public InternalBuildActionAdapter(BuildAction<? extends T> action, File rootDir, VersionDetails versionDetails) {
        this.action = action;
        this.rootDir = rootDir;
        this.versionDetails = versionDetails;
    }

    /**
     * This is used by providers 1.8-rc-1 to 4.3
     */
    @Override
    public T execute(final org.gradle.tooling.internal.protocol.InternalBuildController buildController) {
        ProtocolToModelAdapter protocolToModelAdapter = new ProtocolToModelAdapter(new ConsumerTargetTypeProvider());
        BuildController buildControllerAdapter = new BuildControllerWithoutParameterSupport(buildController, protocolToModelAdapter, new ModelMapping(), rootDir, versionDetails);
        return action.execute(buildControllerAdapter);
    }

    /**
     * This is used by providers 4.4 and later
     */
    @Override
    public T execute(final InternalBuildControllerVersion2 buildController) {
        BuildController buildControllerAdapter = wrapBuildController(buildController);
        return action.execute(buildControllerAdapter);
    }

    private BuildController wrapBuildController(final InternalBuildControllerVersion2 buildController) {
        ProtocolToModelAdapter protocolToModelAdapter = new ProtocolToModelAdapter(new ConsumerTargetTypeProvider());
        if (buildController instanceof InternalActionAwareBuildController) {
            return new NestedActionAwareBuildControllerAdapter(buildController, protocolToModelAdapter, new ModelMapping(), rootDir);
        } else {
            return new ParameterAwareBuildControllerAdapter(buildController, protocolToModelAdapter, new ModelMapping(), rootDir);
        }
    }
}
