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

The following examples show how to use org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator. These examples are extracted from open source projects. 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 Project: hadoop   Source File: TFile.java    License: 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 Project: hadoop   Source File: TFile.java    License: 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 Project: big-c   Source File: TFile.java    License: 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 4
Source Project: big-c   Source File: TFile.java    License: 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 5
Source Project: attic-apex-malhar   Source File: DTFile.java    License: 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 6
Source Project: attic-apex-malhar   Source File: DTFile.java    License: 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 7
Source Project: RDFS   Source File: TFile.java    License: 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 Project: RDFS   Source File: TFile.java    License: 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 Project: hadoop-gpu   Source File: TFile.java    License: 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 10
Source Project: hadoop-gpu   Source File: TFile.java    License: 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 11
Source Project: hadoop   Source File: TFile.java    License: Apache License 2.0 4 votes vote down vote up
public BytesComparator getComparator() {
  return comparator;
}
 
Example 12
Source Project: hadoop   Source File: TFile.java    License: 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 13
Source Project: big-c   Source File: TFile.java    License: Apache License 2.0 4 votes vote down vote up
public BytesComparator getComparator() {
  return comparator;
}
 
Example 14
Source Project: big-c   Source File: TFile.java    License: 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 15
Source Project: attic-apex-malhar   Source File: DTFile.java    License: Apache License 2.0 4 votes vote down vote up
public BytesComparator getComparator() {
  return comparator;
}
 
Example 16
Source Project: attic-apex-malhar   Source File: DTFile.java    License: 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 17
Source Project: RDFS   Source File: TFile.java    License: Apache License 2.0 4 votes vote down vote up
public BytesComparator getComparator() {
  return comparator;
}
 
Example 18
Source Project: RDFS   Source File: TFile.java    License: 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 19
Source Project: hadoop-gpu   Source File: TFile.java    License: Apache License 2.0 4 votes vote down vote up
public BytesComparator getComparator() {
  return comparator;
}
 
Example 20
Source Project: hadoop-gpu   Source File: TFile.java    License: 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;
}