/**
 * Copyright 2013-2015 Seagate Technology LLC.
 *
 * This Source Code Form is subject to the terms of the Mozilla
 * Public License, v. 2.0. If a copy of the MPL was not
 * distributed with this file, You can obtain one at
 * https://mozilla.org/MP:/2.0/.
 * 
 * This program is distributed in the hope that it will be useful,
 * but is provided AS-IS, WITHOUT ANY WARRANTY; including without 
 * the implied warranty of MERCHANTABILITY, NON-INFRINGEMENT or 
 * FITNESS FOR A PARTICULAR PURPOSE. See the Mozilla Public 
 * License for more details.
 *
 * See www.openkinetic.org for more project information
 */
package com.seagate.kinetic.example.batchop;

import java.io.UnsupportedEncodingException;

import kinetic.client.BatchAbortedException;
import kinetic.client.BatchOperation;
import kinetic.client.ClientConfiguration;
import kinetic.client.Entry;
import kinetic.client.KineticClient;
import kinetic.client.KineticClientFactory;
import kinetic.client.KineticException;

/**
 * Kinetic client batch operation usage example.
 * <p>
 * This example shows a version mismatch example that caused a batch commit to
 * fail.
 * <p>
 * @author chiaming
 */
public class BatchOperationVersionMismatchExample {

    public void run(String host, int port) throws KineticException,
            UnsupportedEncodingException {

        // kinetic client
        KineticClient client = null;

        // Client configuration and initialization
        ClientConfiguration clientConfig = new ClientConfiguration();

        clientConfig.setHost(host);
        clientConfig.setPort(port);

        // create client instance
        client = KineticClientFactory.createInstance(clientConfig);

        // put entry bar
        Entry bar = new Entry();
        bar.setKey("bar".getBytes("UTF8"));
        bar.setValue("bar".getBytes("UTF8"));
        bar.getEntryMetadata().setVersion("1234".getBytes("UTF8"));

        client.putForced(bar);

        try {
            // start batch a new batch operation
            BatchOperation batch = client.createBatchOperation();

            // put foo
            Entry foo = new Entry();
            foo.setKey("foo".getBytes("UTF8"));
            foo.setValue("foo".getBytes("UTF8"));

            // put foo
            batch.putForced(foo);

            // set bar entry with wrong version
            bar.getEntryMetadata().setVersion("4321".getBytes("UTF8"));

            // put bar in batch, this will cause the commit to fail
            batch.put(bar, "1".getBytes());

            // end/commit batch operation
            batch.commit();

            throw new RuntimeException("Expected exception was not received");

        } catch (BatchAbortedException abe) {
            System.out.println("Received expected exception, reason:  "
                    + abe.getMessage());
            System.out.println("Verification passed.");
        } finally {
            // close kinetic client
            client.close();
        }
    }

    public static void main(String[] args) throws KineticException,
            InterruptedException, UnsupportedEncodingException {

        BatchOperationVersionMismatchExample batch = new BatchOperationVersionMismatchExample();

        batch.run("localhost", 8123);
    }

}