iotdb-core/datanode/src/test/java/org/apache/iotdb/db/metadata/mtree/schemafile/RecordUtilTests.java

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 * 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
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 * Unless required by applicable law or agreed to in writing,
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package org.apache.iotdb.db.metadata.mtree.schemafile;

import org.apache.iotdb.commons.exception.MetadataException;
import org.apache.iotdb.commons.schema.node.utils.IMNodeFactory;
import org.apache.iotdb.db.schemaengine.schemaregion.mtree.impl.pbtree.mnode.ICachedMNode;
import org.apache.iotdb.db.schemaengine.schemaregion.mtree.impl.pbtree.mnode.container.ICachedMNodeContainer;
import org.apache.iotdb.db.schemaengine.schemaregion.mtree.impl.pbtree.schemafile.RecordUtils;
import org.apache.iotdb.db.schemaengine.schemaregion.mtree.loader.MNodeFactoryLoader;
import org.apache.iotdb.db.utils.EnvironmentUtils;
import org.apache.iotdb.tsfile.file.metadata.enums.CompressionType;
import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding;
import org.apache.iotdb.tsfile.write.schema.IMeasurementSchema;
import org.apache.iotdb.tsfile.write.schema.MeasurementSchema;

import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.Map;

public class RecordUtilTests {

  private final IMNodeFactory<ICachedMNode> nodeFactory =
      MNodeFactoryLoader.getInstance().getCachedMNodeIMNodeFactory();

  @Before
  public void setUp() {
    EnvironmentUtils.envSetUp();
  }

  @After
  public void tearDown() throws Exception {
    EnvironmentUtils.cleanEnv();
  }

  @Test
  public void internalNodeTest() throws MetadataException {
    ICachedMNode oneNode = nodeFactory.createInternalMNode(null, "abcd");
    ICachedMNode twoNode = nodeFactory.createDeviceMNode(null, "efgh").getAsMNode();
    ICachedMNodeContainer.getCachedMNodeContainer(oneNode).setSegmentAddress(1234567L);
    ICachedMNodeContainer.getCachedMNodeContainer(twoNode).setSegmentAddress(66666L);
    twoNode.getAsDeviceMNode().setUseTemplate(true);
    ByteBuffer buffer = RecordUtils.node2Buffer(oneNode);
    buffer.clear();
    ICachedMNode node1 = RecordUtils.buffer2Node("abcd", buffer);
    Assert.assertEquals(
        1234567L, ICachedMNodeContainer.getCachedMNodeContainer(node1).getSegmentAddress());
    buffer = RecordUtils.node2Buffer(twoNode);
    buffer.clear();
    node1 = RecordUtils.buffer2Node("efgh", buffer);
    Assert.assertEquals(
        66666L, ICachedMNodeContainer.getCachedMNodeContainer(node1).getSegmentAddress());
    Assert.assertTrue(node1.getAsDeviceMNode().isUseTemplate());
  }

  @Test
  public void measurementTest() throws MetadataException {
    Map<String, String> props = new HashMap<>();
    props.put("ka", "va");
    props.put("kb", "vb");

    IMeasurementSchema schema =
        new MeasurementSchema(
            "amn", TSDataType.FLOAT, TSEncoding.BITMAP, CompressionType.GZIP, props);
    ICachedMNode amn =
        nodeFactory.createMeasurementMNode(null, "amn", schema, "anothername").getAsMNode();

    ByteBuffer tBuf = RecordUtils.node2Buffer(amn);
    tBuf.clear();
    Assert.assertFalse(
        RecordUtils.buffer2Node("name", tBuf).getAsMeasurementMNode().isPreDeleted());

    amn.getAsMeasurementMNode().setPreDeleted(true);

    tBuf = RecordUtils.node2Buffer(amn);
    tBuf.clear();
    Assert.assertTrue(RecordUtils.buffer2Node("name", tBuf).getAsMeasurementMNode().isPreDeleted());

    ByteBuffer buffer = RecordUtils.node2Buffer(amn);
    buffer.clear();
    ICachedMNode node2 = RecordUtils.buffer2Node("amn", buffer);

    Assert.assertTrue(
        amn.getAsMeasurementMNode().getSchema().equals(node2.getAsMeasurementMNode().getSchema()));
    Assert.assertEquals(
        node2.getAsMeasurementMNode().getAlias(), amn.getAsMeasurementMNode().getAlias());
    Assert.assertEquals(true, node2.getAsMeasurementMNode().isPreDeleted());
    Assert.assertEquals(props, node2.getAsMeasurementMNode().getSchema().getProps());
  }
}