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    • org.eclipse.packager.rpm.build.BuilderContext Maven / Gradle / Ivy

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    /**
 * Copyright (c) 2015, 2019 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 */

package org.eclipse.packager.rpm.build;

import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;

public interface BuilderContext
{
    public static final String DEFAULT_USER = "root";

    public static final String DEFAULT_GROUP = "root";

    public static final class Directory
    {
        private Directory ()
        {
        }
    }

    public static final class SymbolicLink
    {
        private SymbolicLink ()
        {
        }
    }

    public static final Directory DIRECTORY = new Directory ();

    public static final SymbolicLink SYMBOLIC_LINK = new SymbolicLink ();

    public static FileInformationCustomizer pathCustomizer ()
    {
        return new FileInformationCustomizer () {

            @Override
            public void perform ( final Path path, final FileInformation information ) throws IOException
            {
                information.setTimestamp ( Files.getLastModifiedTime ( path ).toInstant () );
            }
        };
    }

    public static SimpleFileInformationCustomizer nowTimestampCustomizer ()
    {
        return Defaults.NOW_TIMESTAMP_CUSTOMIZER;
    }

    public static SimpleFileInformationCustomizer modeCustomizer ( final short mode )
    {
        return new SimpleFileInformationCustomizer () {

            @Override
            public void perform ( final FileInformation information )
            {
                information.setMode ( mode );
            }
        };
    }

    public static FileInformationProvider pathProvider ()
    {
        return Defaults.PATH_PROVIDER;
    }

    public static  FileInformationProvider simpleProvider ( final int mode )
    {
        return new FileInformationProvider () {

            @Override
            public FileInformation provide ( final String targetName, final T object, final PayloadEntryType type ) throws IOException
            {
                return new FileInformation ();
            }
        }.customize ( nowTimestampCustomizer () ).customize ( modeCustomizer ( (short)mode ) );
    }

    @SuppressWarnings ( "unchecked" )
    public static  FileInformationProvider simpleFileProvider ()
    {
        return (FileInformationProvider)Defaults.SIMPLE_FILE_PROVIDER;
    }

    @SuppressWarnings ( "unchecked" )
    public static  FileInformationProvider simpleDirectoryProvider ()
    {
        return (FileInformationProvider)Defaults.SIMPLE_DIRECTORY_PROVIDER;
    }

    public static  FileInformationProvider multiProvider ( final FileInformationProvider defaultProvider, final ProviderRule... rules )
    {
        Objects.requireNonNull ( rules );

        return multiProvider ( defaultProvider, Arrays.asList ( rules ) );
    }

    public static  FileInformationProvider multiProvider ( final FileInformationProvider defaultProvider, final List> rules )
    {
        Objects.requireNonNull ( defaultProvider );
        Objects.requireNonNull ( rules );

        return new FileInformationProvider () {

            @Override
            public FileInformation provide ( final String targetName, final Object object, final PayloadEntryType type ) throws IOException
            {
                for ( final ProviderRule rule : rules )
                {
                    final FileInformation result = rule.run ( targetName, object, type );
                    if ( result != null )
                    {
                        return result;
                    }
                }
                return defaultProvider.provide ( targetName, object, type );
            }
        };
    }

    /**
     * Get a default information provider
     * 
    
     * This provider will only used provided information, set the access modes
     * to @{@code 0755} for directories and to {@code 0644} for all others. It
     * will use the default user ({@code root}) and group ({@code root}) and use
     * the current time as file timestamp.
     * 
    
     *
     * @param 
     *            the object type to use as information source
     * @return the default information provider
     */
    @SuppressWarnings ( "unchecked" )
    public static  FileInformationProvider defaultProvider ()
    {
        return (FileInformationProvider)Defaults.DEFAULT_MULTI_PROVIDER;
    }

    public void setDefaultInformationProvider ( FileInformationProvider provider );

    public FileInformationProvider getDefaultInformationProvider ();

    public default void addFile ( final String targetName, final Path source ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider () );
    }

    public void addFile ( String targetName, Path source, FileInformationProvider provider ) throws IOException;

    public default void addFile ( final String targetName, final Path source, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider ().customize ( customizer ) );
    }

    public default void addFile ( final String targetName, final InputStream source ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider () );
    }

    public void addFile ( String targetName, InputStream source, FileInformationProvider provider ) throws IOException;

    public default void addFile ( final String targetName, final InputStream source, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider ().customize ( customizer ) );
    }

    public default void addFile ( final String targetName, final ByteBuffer source ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider () );
    }

    public void addFile ( String targetName, ByteBuffer source, FileInformationProvider provider ) throws IOException;

    public default void addFile ( final String targetName, final ByteBuffer source, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider ().customize ( customizer ) );
    }

    public default void addFile ( final String targetName, final byte[] source ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider () );
    }

    public default void addFile ( final String targetName, final byte[] source, final FileInformationProvider provider ) throws IOException
    {
        addFile ( targetName, ByteBuffer.wrap ( source ), provider );
    }

    public default void addFile ( final String targetName, final byte[] source, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addFile ( targetName, source, getDefaultInformationProvider ().customize ( customizer ) );
    }

    public default void addDirectory ( final String targetName ) throws IOException
    {
        addDirectory ( targetName, getDefaultInformationProvider () );
    }

    public void addDirectory ( String targetName, final FileInformationProvider provider ) throws IOException;

    public default void addDirectory ( final String targetName, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addDirectory ( targetName, getDefaultInformationProvider ().customize ( customizer ) );
    }

    public void addSymbolicLink ( String targetName, String linkTo, final FileInformationProvider provider ) throws IOException;

    public default void addSymbolicLink ( final String targetName, final String linkTo ) throws IOException
    {
        addSymbolicLink ( targetName, linkTo, getDefaultInformationProvider () );
    }

    public default void addSymbolicLink ( final String targetName, final String linkTo, final SimpleFileInformationCustomizer customizer ) throws IOException
    {
        addSymbolicLink ( targetName, linkTo, getDefaultInformationProvider ().customize ( customizer ) );
    }
}
    
    
    
    

    




    
    
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