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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.jackrabbit.oak.run;

import org.apache.jackrabbit.oak.run.commons.Command;
import org.apache.jackrabbit.oak.segment.azure.tool.SegmentCopy;

import java.io.IOException;
import java.io.PrintWriter;

import joptsimple.OptionParser;
import joptsimple.OptionSet;

class SegmentCopyCommand implements Command {

    @Override
    public void execute(String... args) throws Exception {
        OptionParser parser = new OptionParser();
        OptionSet options = parser.parse(args);

        PrintWriter out = new PrintWriter(System.out, true);
        PrintWriter err = new PrintWriter(System.err, true);

        if (options.nonOptionArguments().size() != 2) {
            printUsage(parser, err);
        }

        String source = options.nonOptionArguments().get(0).toString();
        String destination = options.nonOptionArguments().get(1).toString();

        int statusCode = SegmentCopy.builder()
                .withSource(source)
                .withDestination(destination)
                .withOutWriter(out)
                .withErrWriter(err)
                .build()
                .run();
        System.exit(statusCode);
    }

    private void printUsage(OptionParser parser, PrintWriter err, String... messages) throws IOException {
        for (String message : messages) {
            err.println(message);
        }

        err.println("usage: segment-copy src dest [options] \n");
        err.println("       where src/dest are specified as PATH | cloud-prefix:URI");
        parser.printHelpOn(err);
        System.exit(1);
    }
}