/*
 * Copyright 2016 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 com.google.common.base.Charsets
import com.google.common.hash.HashCode
import com.google.common.hash.Hashing
import org.gradle.internal.classloader.ClasspathHasher
import org.gradle.internal.classpath.ClassPath

/**
 * Creates snapshot based on file paths.
 */
class FileClasspathHasher implements ClasspathHasher {
    @Override
    HashCode hash(ClassPath classpath) {
        def hasher = Hashing.md5().newHasher()
        classpath.asFiles*.path.each { String path ->
            hasher.putString(path, Charsets.UTF_8)
        }
        return hasher.hash();
    }
}
