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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.maven.building;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Objects;

/**
 * Wraps an ordinary {@link File} as a source.
 *
 * @author Benjamin Bentmann
 */
public class FileSource implements Source {
    private final File file;

    /**
     * Creates a new source backed by the specified file.
     *
     * @param file The file, must not be {@code null}.
     */
    public FileSource(File file) {
        this.file = Objects.requireNonNull(file, "file cannot be null").getAbsoluteFile();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return new FileInputStream(file);
    }

    @Override
    public String getLocation() {
        return file.getPath();
    }

    /**
     * Gets the file of this source.
     *
     * @return The underlying file, never {@code null}.
     */
    public File getFile() {
        return file;
    }

    @Override
    public String toString() {
        return getLocation();
    }
}