// Copyright 2017 JanusGraph Authors
//
// Licensed 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.janusgraph.hadoop;

import org.janusgraph.HBaseStorageSetup;
import org.janusgraph.diskstorage.BackendException;
import org.janusgraph.diskstorage.configuration.WriteConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.hadoop.hbase.util.VersionInfo;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.util.GraphFactory;
import org.junit.AfterClass;
import org.junit.BeforeClass;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class HBaseInputFormatIT extends AbstractInputFormatIT {

    @BeforeClass
    public static void startHBase() throws IOException, BackendException {
        HBaseStorageSetup.startHBase();
    }

    @AfterClass
    public static void stopHBase() {
        // Workaround for https://issues.apache.org/jira/browse/HBASE-10312
        if (VersionInfo.getVersion().startsWith("0.96"))
            HBaseStorageSetup.killIfRunning();
    }

    protected Graph getGraph() throws IOException, ConfigurationException {
        final PropertiesConfiguration config = new PropertiesConfiguration("target/test-classes/hbase-read.properties");
        Path baseOutDir = Paths.get((String) config.getProperty("gremlin.hadoop.outputLocation"));
        baseOutDir.toFile().mkdirs();
        String outDir = Files.createTempDirectory(baseOutDir, null).toAbsolutePath().toString();
        config.setProperty("gremlin.hadoop.outputLocation", outDir);
        return GraphFactory.open(config);
    }

    @Override
    public WriteConfiguration getConfiguration() {
        return HBaseStorageSetup.getHBaseGraphConfiguration();
    }
}