gradle-master/subprojects/core/src/main/java/org/gradle/api/internal/tasks/properties/DefaultCacheableOutputFilePropertySpec.java
/*
 * Copyright 2019 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.api.internal.tasks.properties;

import org.gradle.api.internal.file.FileCollectionInternal;
import org.gradle.internal.execution.model.OutputNormalizer;
import org.gradle.internal.file.TreeType;

import javax.annotation.Nullable;
import java.io.File;

/**
 * An output property consisting of a single output file/directory.
 *
 * When using directory trees as outputs (e.g. via {@link org.gradle.api.Project#fileTree(Object)}), {@link DirectoryTreeOutputFilePropertySpec} is used.
 * Everything else will use this class.
 */
public class DefaultCacheableOutputFilePropertySpec extends AbstractFilePropertySpec implements CacheableOutputFilePropertySpec {
    private final String propertySuffix;
    private final TreeType outputType;

    public DefaultCacheableOutputFilePropertySpec(
        String propertyName,
        @Nullable String propertySuffix,
        FileCollectionInternal outputFiles,
        TreeType outputType
    ) {
        super(propertyName, OutputNormalizer.INSTANCE, outputFiles);
        this.propertySuffix = propertySuffix;
        this.outputType = outputType;
    }

    @Override
    public String getPropertyName() {
        return propertySuffix != null ? super.getPropertyName() + propertySuffix : super.getPropertyName();
    }

    @Override
    public File getOutputFile() {
        return getPropertyFiles().getSingleFile();
    }

    @Override
    public TreeType getOutputType() {
        return outputType;
    }
}
