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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package org.graalvm.component.installer.persist;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.file.Files;
import java.nio.file.Path;
import org.graalvm.component.installer.CommandInput;
import org.graalvm.component.installer.Commands;
import org.graalvm.component.installer.Feedback;
import org.graalvm.component.installer.SoftwareChannel;
import org.graalvm.component.installer.SoftwareChannelSource;

Creates DirectoryCatalogProviders over a directory. 
Author:
sdedic/**
 * Creates {@link DirectoryCatalogProvider}s over a directory.
 * 
 * @author sdedic
 */
public class DirectoryChannelFactory implements SoftwareChannel.Factory {
    @Override
    public SoftwareChannel createChannel(SoftwareChannelSource source, CommandInput input, Feedback output) {
        String u = source.getLocationURL();
        if (!u.startsWith("file:")) { // NOI18N
            return null;
        }
        Feedback out2 = output.withBundle(DirectoryChannelFactory.class);
        try {
            Path p = new File(new URI(u)).toPath();
            if (!Files.isDirectory(p)) {
                return null;
            }
            DirectoryCatalogProvider dp = new DirectoryCatalogProvider(p, out2);
            dp.setVerifyJars(input.optValue(Commands.OPTION_NO_VERIFY_JARS) == null);
            // do not report errors for directory sources implied by commandline arguments.
            if (Boolean.FALSE.toString().equals(source.getParameter("reportErrors"))) { // NOI18N
                dp.setReportErrors(false);
            }
            return dp;
        } catch (URISyntaxException ex) {
            out2.error("ERR_DirectoryURLInvalid", ex, u, ex.getMessage());
            return null;
        }
    }

    @Override
    public void init(CommandInput input, Feedback output) {
    }
}