本文整理汇总了Java中org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator类的典型用法代码示例。如果您正苦于以下问题：Java BytesComparator类的具体用法？Java BytesComparator怎么用？Java BytesComparator使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
BytesComparator类属于org.apache.hadoop.io.file.tfile.CompareUtils包，在下文中一共展示了BytesComparator类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: makeComparator
import org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator; //导入依赖的package包/类
@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);
}
}
示例2: TFileIndex
import org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator; //导入依赖的package包/类
/**
* 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;
}
示例3: TFileIndex
import org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator; //导入依赖的package包/类
/**
* 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;
}
示例4: TFileIndex
import org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator; //导入依赖的package包/类
/**
* 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;
}
示例5: getComparator
import org.apache.hadoop.io.file.tfile.CompareUtils.BytesComparator; //导入依赖的package包/类
public BytesComparator getComparator() {
return comparator;
}