/*
 * Copyright (C) 2015 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jboss.errai.reflections.vfs;

import java.io.InputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

/** an implementation of {@link org.jboss.errai.reflections.vfs.Vfs.File} for a directory {@link java.io.File} */
public class SystemFile implements Vfs.File {
    private final SystemDir dir;
    private final java.io.File file;

    public SystemFile(final SystemDir dir, java.io.File file) {
        this.dir = dir;
        this.file = file;
    }

    public String getFullPath() {
        return file.getPath();
    }

    public String getName() {
        return file.getName();
    }

    public String getRelativePath() {
        if (file.getPath().startsWith(dir.getPath())) {
            return file.getPath().substring(dir.getPath().length() + 1).replace('\\', '/');
        }

        return null; //should not get here
    }

    public InputStream openInputStream() {
        try {
            return new FileInputStream(file);
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        }
    }

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