org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator Java Examples

The following examples show how to use org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: TFile.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static BytesComparator makeComparator(String comparator) {
  if (comparator.length() == 0) {
    // unsorted keys
    return null;
  }
  if (comparator.equals(COMPARATOR_MEMCMP)) {
    // default comparator
    return new BytesComparator(new MemcmpRawComparator());
  } else if (comparator.startsWith(COMPARATOR_JCLASS)) {
    String compClassName =
        comparator.substring(COMPARATOR_JCLASS.length()).trim();
    try {
      Class compClass = Class.forName(compClassName);
      // use its default ctor to create an instance
      return new BytesComparator((RawComparator<Object>) compClass
          .newInstance());
    } catch (Exception e) {
      throw new IllegalArgumentException(
          "Failed to instantiate comparator: " + comparator + "("
              + e.toString() + ")");
    }
  } else {
    throw new IllegalArgumentException("Unsupported comparator: "
        + comparator);
  }
}
Example #2
Source File: TFile.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * For reading from file.
 * 
 * @throws IOException
 */
public TFileIndex(int entryCount, DataInput in, BytesComparator comparator)
    throws IOException {
  index = new ArrayList<TFileIndexEntry>(entryCount);
  recordNumIndex = new ArrayList<Long>(entryCount);
  int size = Utils.readVInt(in); // size for the first key entry.
  if (size > 0) {
    byte[] buffer = new byte[size];
    in.readFully(buffer);
    DataInputStream firstKeyInputStream =
        new DataInputStream(new ByteArrayInputStream(buffer, 0, size));

    int firstKeyLength = Utils.readVInt(firstKeyInputStream);
    firstKey = new ByteArray(new byte[firstKeyLength]);
    firstKeyInputStream.readFully(firstKey.buffer());

    for (int i = 0; i < entryCount; i++) {
      size = Utils.readVInt(in);
      if (buffer.length < size) {
        buffer = new byte[size];
      }
      in.readFully(buffer, 0, size);
      TFileIndexEntry idx =
          new TFileIndexEntry(new DataInputStream(new ByteArrayInputStream(
              buffer, 0, size)));
      index.add(idx);
      sum += idx.entries();
      recordNumIndex.add(sum);
    }
  } else {
    if (entryCount != 0) {
      throw new RuntimeException("Internal error");
    }
  }
  this.comparator = comparator;
}
Example #3
Source File: TFile.java    From hadoop-gpu with Apache License 2.0 5 votes vote down vote up 
/**
 * For reading from file.
 * 
 * @throws IOException
 */
public TFileIndex(int entryCount, DataInput in, BytesComparator comparator)
    throws IOException {
  index = new ArrayList<TFileIndexEntry>(entryCount);
  int size = Utils.readVInt(in); // size for the first key entry.
  if (size > 0) {
    byte[] buffer = new byte[size];
    in.readFully(buffer);
    DataInputStream firstKeyInputStream =
        new DataInputStream(new ByteArrayInputStream(buffer, 0, size));

    int firstKeyLength = Utils.readVInt(firstKeyInputStream);
    firstKey = new ByteArray(new byte[firstKeyLength]);
    firstKeyInputStream.readFully(firstKey.buffer());

    for (int i = 0; i < entryCount; i++) {
      size = Utils.readVInt(in);
      if (buffer.length < size) {
        buffer = new byte[size];
      }
      in.readFully(buffer, 0, size);
      TFileIndexEntry idx =
          new TFileIndexEntry(new DataInputStream(new ByteArrayInputStream(
              buffer, 0, size)));
      index.add(idx);
    }
  } else {
    if (entryCount != 0) {
      throw new RuntimeException("Internal error");
    }
  }
  this.comparator = comparator;
}
Example #4
Source File: TFile.java    From big-c with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static BytesComparator makeComparator(String comparator) {
  if (comparator.length() == 0) {
    // unsorted keys
    return null;
  }
  if (comparator.equals(COMPARATOR_MEMCMP)) {
    // default comparator
    return new BytesComparator(new MemcmpRawComparator());
  } else if (comparator.startsWith(COMPARATOR_JCLASS)) {
    String compClassName =
        comparator.substring(COMPARATOR_JCLASS.length()).trim();
    try {
      Class compClass = Class.forName(compClassName);
      // use its default ctor to create an instance
      return new BytesComparator((RawComparator<Object>) compClass
          .newInstance());
    } catch (Exception e) {
      throw new IllegalArgumentException(
          "Failed to instantiate comparator: " + comparator + "("
              + e.toString() + ")");
    }
  } else {
    throw new IllegalArgumentException("Unsupported comparator: "
        + comparator);
  }
}
Example #5
Source File: TFile.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * For reading from file.
 * 
 * @throws IOException
 */
public TFileIndex(int entryCount, DataInput in, BytesComparator comparator)
    throws IOException {
  index = new ArrayList<TFileIndexEntry>(entryCount);
  recordNumIndex = new ArrayList<Long>(entryCount);
  int size = Utils.readVInt(in); // size for the first key entry.
  if (size > 0) {
    byte[] buffer = new byte[size];
    in.readFully(buffer);
    DataInputStream firstKeyInputStream =
        new DataInputStream(new ByteArrayInputStream(buffer, 0, size));

    int firstKeyLength = Utils.readVInt(firstKeyInputStream);
    firstKey = new ByteArray(new byte[firstKeyLength]);
    firstKeyInputStream.readFully(firstKey.buffer());

    for (int i = 0; i < entryCount; i++) {
      size = Utils.readVInt(in);
      if (buffer.length < size) {
        buffer = new byte[size];
      }
      in.readFully(buffer, 0, size);
      TFileIndexEntry idx =
          new TFileIndexEntry(new DataInputStream(new ByteArrayInputStream(
              buffer, 0, size)));
      index.add(idx);
      sum += idx.entries();
      recordNumIndex.add(sum);
    }
  } else {
    if (entryCount != 0) {
      throw new RuntimeException("Internal error");
    }
  }
  this.comparator = comparator;
}
Example #6
Source File: TFile.java    From hadoop-gpu with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static BytesComparator makeComparator(String comparator) {
  if (comparator.length() == 0) {
    // unsorted keys
    return null;
  }
  if (comparator.equals(COMPARATOR_MEMCMP)) {
    // default comparator
    return new BytesComparator(new MemcmpRawComparator());
  } else if (comparator.startsWith(COMPARATOR_JCLASS)) {
    String compClassName =
        comparator.substring(COMPARATOR_JCLASS.length()).trim();
    try {
      Class compClass = Class.forName(compClassName);
      // use its default ctor to create an instance
      return new BytesComparator((RawComparator<Object>) compClass
          .newInstance());
    } catch (Exception e) {
      throw new IllegalArgumentException(
          "Failed to instantiate comparator: " + comparator + "("
              + e.toString() + ")");
    }
  } else {
    throw new IllegalArgumentException("Unsupported comparator: "
        + comparator);
  }
}
Example #7
Source File: DTFile.java    From attic-apex-malhar with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static BytesComparator makeComparator(String comparator) {
  if (comparator.length() == 0) {
    // unsorted keys
    return null;
  }
  if (comparator.equals(COMPARATOR_MEMCMP)) {
    // default comparator
    return new BytesComparator(new MemcmpRawComparator());
  } else if (comparator.startsWith(COMPARATOR_JCLASS)) {
    String compClassName =
        comparator.substring(COMPARATOR_JCLASS.length()).trim();
    try {
      Class compClass = Class.forName(compClassName);
      // use its default ctor to create an instance
      return new BytesComparator((RawComparator<Object>) compClass
          .newInstance());
    } catch (Exception e) {
      throw new IllegalArgumentException(
          "Failed to instantiate comparator: " + comparator + "("
              + e.toString() + ")");
    }
  } else {
    throw new IllegalArgumentException("Unsupported comparator: "
        + comparator);
  }
}
Example #8
Source File: DTFile.java    From attic-apex-malhar with Apache License 2.0 5 votes vote down vote up 
/**
 * For reading from file.
 *
 * @throws IOException
 */
public TFileIndex(int entryCount, DataInput in, BytesComparator comparator)
    throws IOException {
  index = new ArrayList<TFileIndexEntry>(entryCount);
  recordNumIndex = new ArrayList<Long>(entryCount);
  int size = Utils.readVInt(in); // size for the first key entry.
  if (size > 0) {
    byte[] buffer = new byte[size];
    in.readFully(buffer);
    DataInputStream firstKeyInputStream =
        new DataInputStream(new ByteArrayInputStream(buffer, 0, size));

    int firstKeyLength = Utils.readVInt(firstKeyInputStream);
    firstKey = new ByteArray(new byte[firstKeyLength]);
    firstKeyInputStream.readFully(firstKey.buffer());

    for (int i = 0; i < entryCount; i++) {
      size = Utils.readVInt(in);
      if (buffer.length < size) {
        buffer = new byte[size];
      }
      in.readFully(buffer, 0, size);
      TFileIndexEntry idx =
          new TFileIndexEntry(new DataInputStream(new ByteArrayInputStream(
              buffer, 0, size)));
      index.add(idx);
      sum += idx.entries();
      recordNumIndex.add(sum);
    }
  } else {
    if (entryCount != 0) {
      throw new RuntimeException("Internal error");
    }
  }
  this.comparator = comparator;
}
Example #9
Source File: TFile.java    From RDFS with Apache License 2.0 5 votes vote down vote up 
/**
 * For reading from file.
 * 
 * @throws IOException
 */
public TFileIndex(int entryCount, DataInput in, BytesComparator comparator)
    throws IOException {
  index = new ArrayList<TFileIndexEntry>(entryCount);
  recordNumIndex = new ArrayList<Long>(entryCount);
  int size = Utils.readVInt(in); // size for the first key entry.
  if (size > 0) {
    byte[] buffer = new byte[size];
    in.readFully(buffer);
    DataInputStream firstKeyInputStream =
        new DataInputStream(new ByteArrayInputStream(buffer, 0, size));

    int firstKeyLength = Utils.readVInt(firstKeyInputStream);
    firstKey = new ByteArray(new byte[firstKeyLength]);
    firstKeyInputStream.readFully(firstKey.buffer());

    for (int i = 0; i < entryCount; i++) {
      size = Utils.readVInt(in);
      if (buffer.length < size) {
        buffer = new byte[size];
      }
      in.readFully(buffer, 0, size);
      TFileIndexEntry idx =
          new TFileIndexEntry(new DataInputStream(new ByteArrayInputStream(
              buffer, 0, size)));
      index.add(idx);
      sum += idx.entries();
      recordNumIndex.add(sum);
    }
  } else {
    if (entryCount != 0) {
      throw new RuntimeException("Internal error");
    }
  }
  this.comparator = comparator;
}
Example #10
Source File: TFile.java    From RDFS with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
static BytesComparator makeComparator(String comparator) {
  if (comparator.length() == 0) {
    // unsorted keys
    return null;
  }
  if (comparator.equals(COMPARATOR_MEMCMP)) {
    // default comparator
    return new BytesComparator(new MemcmpRawComparator());
  } else if (comparator.startsWith(COMPARATOR_JCLASS)) {
    String compClassName =
        comparator.substring(COMPARATOR_JCLASS.length()).trim();
    try {
      Class compClass = Class.forName(compClassName);
      // use its default ctor to create an instance
      return new BytesComparator((RawComparator<Object>) compClass
          .newInstance());
    } catch (Exception e) {
      throw new IllegalArgumentException(
          "Failed to instantiate comparator: " + comparator + "("
              + e.toString() + ")");
    }
  } else {
    throw new IllegalArgumentException("Unsupported comparator: "
        + comparator);
  }
}
Example #11
Source File: TFile.java    From hadoop-gpu with Apache License 2.0 4 votes vote down vote up 
/**
 * For writing to file.
 */
public TFileIndex(BytesComparator comparator) {
  index = new ArrayList<TFileIndexEntry>();
  this.comparator = comparator;
}
Example #12
Source File: TFile.java    From hadoop-gpu with Apache License 2.0 4 votes vote down vote up 
public BytesComparator getComparator() {
  return comparator;
}
Example #13
Source File: TFile.java    From RDFS with Apache License 2.0 4 votes vote down vote up 
/**
 * For writing to file.
 */
public TFileIndex(BytesComparator comparator) {
  index = new ArrayList<TFileIndexEntry>();
  recordNumIndex = new ArrayList<Long>();
  this.comparator = comparator;
}
Example #14
Source File: TFile.java    From RDFS with Apache License 2.0 4 votes vote down vote up 
public BytesComparator getComparator() {
  return comparator;
}
Example #15
Source File: DTFile.java    From attic-apex-malhar with Apache License 2.0 4 votes vote down vote up 
/**
 * For writing to file.
 */
public TFileIndex(BytesComparator comparator) {
  index = new ArrayList<TFileIndexEntry>();
  recordNumIndex = new ArrayList<Long>();
  this.comparator = comparator;
}
Example #16
Source File: DTFile.java    From attic-apex-malhar with Apache License 2.0 4 votes vote down vote up 
public BytesComparator getComparator() {
  return comparator;
}
Example #17
Source File: TFile.java    From big-c with Apache License 2.0 4 votes vote down vote up 
/**
 * For writing to file.
 */
public TFileIndex(BytesComparator comparator) {
  index = new ArrayList<TFileIndexEntry>();
  recordNumIndex = new ArrayList<Long>();
  this.comparator = comparator;
}
Example #18
Source File: TFile.java    From big-c with Apache License 2.0 4 votes vote down vote up 
public BytesComparator getComparator() {
  return comparator;
}
Example #19
Source File: TFile.java    From hadoop with Apache License 2.0 4 votes vote down vote up 
/**
 * For writing to file.
 */
public TFileIndex(BytesComparator comparator) {
  index = new ArrayList<TFileIndexEntry>();
  recordNumIndex = new ArrayList<Long>();
  this.comparator = comparator;
}
Example #20
Source File: TFile.java    From hadoop with Apache License 2.0 4 votes vote down vote up 
public BytesComparator getComparator() {
  return comparator;
}