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/*
 * 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.api.internal.initialization.loadercache;

import org.gradle.api.internal.file.FileCollectionFactory;
import org.gradle.internal.classloader.ClasspathHasher;
import org.gradle.internal.classpath.ClassPath;
import org.gradle.internal.execution.FileCollectionFingerprinter;
import org.gradle.internal.fingerprint.CurrentFileCollectionFingerprint;
import org.gradle.internal.hash.HashCode;

public class DefaultClasspathHasher implements ClasspathHasher {

    private final FileCollectionFingerprinter fingerprinter;
    private final FileCollectionFactory fileCollectionFactory;

    public DefaultClasspathHasher(FileCollectionFingerprinter fingerprinter, FileCollectionFactory fileCollectionFactory) {
        this.fingerprinter = fingerprinter;
        this.fileCollectionFactory = fileCollectionFactory;
    }

    @Override
    public HashCode hash(ClassPath classpath) {
        CurrentFileCollectionFingerprint fingerprint = fingerprinter.fingerprint(fileCollectionFactory.fixed(classpath.getAsFiles()));
        return fingerprint.getHash();
    }
}