org.eclipse.jetty.start.fileinits.LocalFileInitializer Maven / Gradle / Ivy

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//
//  ========================================================================
//  Copyright (c) 1995-2021 Mort Bay Consulting Pty Ltd and others.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.start.fileinits;

import java.io.IOException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;

import org.eclipse.jetty.start.BaseHome;
import org.eclipse.jetty.start.FS;
import org.eclipse.jetty.start.FileInitializer;
import org.eclipse.jetty.start.StartLog;

public class LocalFileInitializer extends FileInitializer
{
    public LocalFileInitializer(BaseHome basehome)
    {
        super(basehome);
    }

    @Override
    public boolean create(URI uri, String location) throws IOException
    {
        Path destination = getDestination(uri, location);

        if (destination == null)
        {
            StartLog.error("Bad file arg %s", uri);
            return false;
        }

        boolean isDir = location.endsWith("/");

        if (FS.exists(destination))
        {
            // Validate existence
            if (isDir)
            {
                if (!Files.isDirectory(destination))
                {
                    throw new IOException("Invalid: path should be a directory (but isn't): " + location);
                }
                if (!FS.canReadDirectory(destination))
                {
                    throw new IOException("Unable to read directory: " + location);
                }
            }
            else
            {
                if (!FS.canReadFile(destination))
                {
                    throw new IOException("Unable to read file: " + location);
                }
            }

            return false;
        }

        if (isDir)
        {
            // Create directory
            boolean mkdir = FS.ensureDirectoryExists(destination);
            if (mkdir)
                StartLog.log("MKDIR", _basehome.toShortForm(destination));
            return mkdir;
        }

        throw new IOException("Unable to create " + _basehome.toShortForm(destination));
    }
}