当前位置: 首页>>代码示例>>Java>>正文

Java SliceRange.setCount方法代码示例

本文整理汇总了Java中org.apache.cassandra.thrift.SliceRange.setCount方法的典型用法代码示例。如果您正苦于以下问题：Java SliceRange.setCount方法的具体用法？Java SliceRange.setCount怎么用？Java SliceRange.setCount使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.thrift.SliceRange的用法示例。


在下文中一共展示了SliceRange.setCount方法的10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: getSlicePredicate

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
private SlicePredicate getSlicePredicate(String[] columnNameList) {
    SlicePredicate slicePredicate = new SlicePredicate();
    try {
        if (columnNameList != null) {
            List<ByteBuffer> columnNameByteBufferList = new ArrayList<ByteBuffer>();
            for (String columnName: columnNameList) {
                byte[] columnNameBytes = columnName.getBytes("UTF-8");
                columnNameByteBufferList.add(ByteBuffer.wrap(columnNameBytes));
            }
            slicePredicate.setColumn_names(columnNameByteBufferList);
        } else {
            SliceRange sliceRange = new SliceRange();
            sliceRange.setStart(new byte[0]);
            sliceRange.setFinish(new byte[0]);
            // FIXME: The default column count is 100. We should tune the value.
            sliceRange.setCount(100000);
            
            slicePredicate.setSlice_range(sliceRange);
        }
    }
    catch (UnsupportedEncodingException exc) {
        throw new StorageException("Character encoding exception with key range", exc);
    }
    return slicePredicate;
}
开发者ID:opendaylight，项目名称:archived-net-virt-platform，代码行数:26，代码来源:Connection.java

示例2: CasTimeReader

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
public CasTimeReader() {
	try {
		TTransport tr = new TFramedTransport(new TSocket("10.15.61.111",
				9160));
		TProtocol proto = new TBinaryProtocol(tr);
		client = new Cassandra.Client(proto);
		tr.open();

		client.set_keyspace("CadalSecTest");

		predicate = new SlicePredicate();
		SliceRange range = new SliceRange();
		range.setStart(new byte[0]);
		range.setFinish(new byte[0]);
		range.setCount(10000);
		predicate.setSlice_range(range);

		columnParent = new ColumnParent();
		columnParent.setColumn_family("RecordMinute");
	} catch (Exception e) {
		System.out.println(e);
	}
}
开发者ID:YinYanfei，项目名称:CadalWorkspace，代码行数:24，代码来源:CasTimeReader.java

示例3: CasTimeBook

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
public CasTimeBook() {
	try {
		TTransport tr = new TFramedTransport(new TSocket("10.15.61.111",
				9160));
		TProtocol proto = new TBinaryProtocol(tr);
		client = new Cassandra.Client(proto);
		tr.open();

		client.set_keyspace("CadalSecTest");

		predicate = new SlicePredicate();
		SliceRange range = new SliceRange();
		range.setStart(new byte[0]);
		range.setFinish(new byte[0]);
		range.setCount(10000);
		predicate.setSlice_range(range);

		columnParent = new ColumnParent();
		columnParent.setColumn_family("RecordMinute");
	} catch (Exception e) {
		System.out.println(e);
	}
}
开发者ID:YinYanfei，项目名称:CadalWorkspace，代码行数:24，代码来源:CasTimeBook.java

示例4: getSliceRange

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
private SliceRange getSliceRange(final SliceQuery slice, final int limit) {
    final SliceRange sliceRange = new SliceRange();
    sliceRange.setStart(slice.getSliceStart().asByteBuffer());
    sliceRange.setFinish(slice.getSliceEnd().asByteBuffer());
    sliceRange.setCount(Math.min(limit, slice.getLimit()));
    return sliceRange;
}
开发者ID:graben1437，项目名称:titan1withtp3.1，代码行数:8，代码来源:CassandraBinaryInputFormat.java

示例5: get2

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
/**
 * get 讀取所有column
 *
 * @throws Exception
 */
@Test
public void get2() throws Exception {
	String KEYSPACE = "mock";
	client.set_keyspace(KEYSPACE);

	// 讀取所有column
	String COLUMN_FAMILY = "student";
	ColumnParent columnParent = new ColumnParent(COLUMN_FAMILY);

	// 術語
	SlicePredicate predicate = new SlicePredicate();

	// 範圍
	SliceRange sliceRange = new SliceRange();
	// sliceRange.setStart(ByteBufferHelper.toByteBuffer(new byte[0]));//開始
	sliceRange.setStart(new byte[0]);// 開始
	sliceRange.setFinish(new byte[0]);// 結束
	sliceRange.setCount(100);// 筆數
	//
	predicate.setSlice_range(sliceRange);

	String ROW_KEY = "Jack";
	// 結果
	// key, column_parent, predicate, consistency_level
	List<ColumnOrSuperColumn> results = client.get_slice(
			ByteBufferHelper.toByteBuffer(ROW_KEY), columnParent,
			predicate, ConsistencyLevel.ONE);

	for (ColumnOrSuperColumn cos : results) {
		Column column = cos.getColumn();
		System.out.println(ROW_KEY + ", "
				+ ByteHelper.toString(column.getName()) + ": "
				+ ByteHelper.toString(column.getValue()) + ", "
				+ column.getTimestamp());
		// Jack, art, 87, 1380788003220
		// Jack, grad, 5, 1380788003203
		// Jack, math, 97, 1380788003214
	}
}
开发者ID:mixaceh，项目名称:openyu-commons，代码行数:45，代码来源:CassandraThriftDMLTest.java

示例6: QueryFromUserChapter

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
/**
	 * Query From CF -- "UserChapter"
	 * @param int userid: 'userid' is column key of this CF, like '119115'
	 */
	public List<String> QueryFromUserChapter(int userid){
//		System.out.println("------------QueryFromUserChapter--------------");

		List<String> listStr = new ArrayList<String>();
		
		try {
			SlicePredicate predicate = new SlicePredicate();
			SliceRange range = new SliceRange();
			range.start = this.cassandraUtil.toByteBuffer("");
			range.finish = this.cassandraUtil.toByteBuffer("");
			range.setCount(10000000);
			predicate.setSlice_range(range);

			ColumnParent parent = new ColumnParent();
			parent.column_family = "UserChapter";    // CF name

			List<ColumnOrSuperColumn> results = client.get_slice(this.cassandraUtil.toByteBuffer(String.valueOf(userid)), parent, predicate,ConsistencyLevel.ONE);
			
			for (ColumnOrSuperColumn result : results) {
				Column column1 = result.column;
				listStr.add(new String(column1.getName(), "UTF-8"));
			}
			
			return listStr;
			
		} catch (Exception e) {
			return listStr;
		}
	}
开发者ID:YinYanfei，项目名称:CadalWorkspace，代码行数:34，代码来源:QueryChapterInfo.java

示例7: getSplits

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
@Override
public InputSplit[] getSplits(JobConf jobConf, int numSplits) throws IOException {
    String ks = jobConf.get(AbstractCassandraSerDe.CASSANDRA_KEYSPACE_NAME);
    String cf = jobConf.get(AbstractCassandraSerDe.CASSANDRA_CF_NAME);
    int slicePredicateSize = jobConf.getInt(AbstractCassandraSerDe.CASSANDRA_SLICE_PREDICATE_SIZE,
            AbstractCassandraSerDe.DEFAULT_SLICE_PREDICATE_SIZE);
    int sliceRangeSize = jobConf.getInt(
            AbstractCassandraSerDe.CASSANDRA_RANGE_BATCH_SIZE,
            AbstractCassandraSerDe.DEFAULT_RANGE_BATCH_SIZE);
    int splitSize = jobConf.getInt(
            AbstractCassandraSerDe.CASSANDRA_SPLIT_SIZE,
            AbstractCassandraSerDe.DEFAULT_SPLIT_SIZE);
    String cassandraColumnMapping = jobConf.get(AbstractCassandraSerDe.CASSANDRA_COL_MAPPING);
    int rpcPort = jobConf.getInt(AbstractCassandraSerDe.CASSANDRA_PORT, 9160);
    String host = jobConf.get(AbstractCassandraSerDe.CASSANDRA_HOST);
    String partitioner = jobConf.get(AbstractCassandraSerDe.CASSANDRA_PARTITIONER);

    if (cassandraColumnMapping == null) {
        throw new IOException("cassandra.columns.mapping required for Cassandra Table.");
    }

    SliceRange range = new SliceRange();
    range.setStart(new byte[0]);
    range.setFinish(new byte[0]);
    range.setReversed(false);
    range.setCount(slicePredicateSize);
    SlicePredicate predicate = new SlicePredicate();
    predicate.setSlice_range(range);

    ConfigHelper.setInputRpcPort(jobConf, "" + rpcPort);
    ConfigHelper.setInputInitialAddress(jobConf, host);
    ConfigHelper.setInputPartitioner(jobConf, partitioner);
    ConfigHelper.setInputSlicePredicate(jobConf, predicate);
    ConfigHelper.setInputColumnFamily(jobConf, ks, cf);
    ConfigHelper.setRangeBatchSize(jobConf, sliceRangeSize);
    ConfigHelper.setInputSplitSize(jobConf, splitSize);

    Job job = new Job(jobConf);
    JobContext jobContext = new JobContextImpl(job.getConfiguration(), job.getJobID());

    Path[] tablePaths = FileInputFormat.getInputPaths(jobContext);
    List<org.apache.hadoop.mapreduce.InputSplit> splits = getSplits(jobContext);
    InputSplit[] results = new InputSplit[splits.size()];

    for (int i = 0; i < splits.size(); ++i) {
        HiveCassandraStandardSplit csplit = new HiveCassandraStandardSplit(
                (ColumnFamilySplit) splits.get(i), cassandraColumnMapping, tablePaths[0]);
        csplit.setKeyspace(ks);
        csplit.setColumnFamily(cf);
        csplit.setRangeBatchSize(sliceRangeSize);
        csplit.setSplitSize(splitSize);
        csplit.setHost(host);
        csplit.setPort(rpcPort);
        csplit.setSlicePredicateSize(slicePredicateSize);
        csplit.setPartitioner(partitioner);
        csplit.setColumnMapping(cassandraColumnMapping);
        results[i] = csplit;
    }
    return results;
}
开发者ID:2013Commons，项目名称:hive-cassandra，代码行数:61，代码来源:HiveCqlInputFormat.java

示例8: getSplits

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
@Override
public InputSplit[] getSplits(JobConf jobConf, int numSplits) throws IOException {
  String ks = jobConf.get(AbstractColumnSerDe.CASSANDRA_KEYSPACE_NAME);
  String cf = jobConf.get(AbstractColumnSerDe.CASSANDRA_CF_NAME);
  int slicePredicateSize = jobConf.getInt(AbstractColumnSerDe.CASSANDRA_SLICE_PREDICATE_SIZE,
      AbstractColumnSerDe.DEFAULT_SLICE_PREDICATE_SIZE);
  int sliceRangeSize = jobConf.getInt(
      AbstractColumnSerDe.CASSANDRA_RANGE_BATCH_SIZE,
      AbstractColumnSerDe.DEFAULT_RANGE_BATCH_SIZE);
  int splitSize = jobConf.getInt(
      AbstractColumnSerDe.CASSANDRA_SPLIT_SIZE,
      AbstractColumnSerDe.DEFAULT_SPLIT_SIZE);
  String cassandraColumnMapping = jobConf.get(AbstractColumnSerDe.CASSANDRA_COL_MAPPING);
  int rpcPort = jobConf.getInt(AbstractColumnSerDe.CASSANDRA_PORT, 9160);
  String host = jobConf.get(AbstractColumnSerDe.CASSANDRA_HOST);
  String partitioner = jobConf.get(AbstractColumnSerDe.CASSANDRA_PARTITIONER);

  if (cassandraColumnMapping == null) {
    throw new IOException("cassandra.columns.mapping required for Cassandra Table.");
  }

  SliceRange range = new SliceRange();
  range.setStart(new byte[0]);
  range.setFinish(new byte[0]);
  range.setReversed(false);
  range.setCount(slicePredicateSize);
  SlicePredicate predicate = new SlicePredicate();
  predicate.setSlice_range(range);

  ConfigHelper.setInputRpcPort(jobConf, "" + rpcPort);
  ConfigHelper.setInputInitialAddress(jobConf, host);
  ConfigHelper.setInputPartitioner(jobConf, partitioner);
  ConfigHelper.setInputSlicePredicate(jobConf, predicate);
  ConfigHelper.setInputColumnFamily(jobConf, ks, cf);
  ConfigHelper.setRangeBatchSize(jobConf, sliceRangeSize);
  ConfigHelper.setInputSplitSize(jobConf, splitSize);

  Job job = new Job(jobConf);
  JobContext jobContext = new JobContext(job.getConfiguration(), job.getJobID());

  Path[] tablePaths = FileInputFormat.getInputPaths(jobContext);
  List<org.apache.hadoop.mapreduce.InputSplit> splits = getSplits(jobContext);
  InputSplit[] results = new InputSplit[splits.size()];

  for (int i = 0; i < splits.size(); ++i) {
    HiveCassandraStandardSplit csplit = new HiveCassandraStandardSplit(
        (ColumnFamilySplit) splits.get(i), cassandraColumnMapping, tablePaths[0]);
    csplit.setKeyspace(ks);
    csplit.setColumnFamily(cf);
    csplit.setRangeBatchSize(sliceRangeSize);
    csplit.setSplitSize(splitSize);
    csplit.setHost(host);
    csplit.setPort(rpcPort);
    csplit.setSlicePredicateSize(slicePredicateSize);
    csplit.setPartitioner(partitioner);
    csplit.setColumnMapping(cassandraColumnMapping);
    results[i] = csplit;
  }
  return results;
}
开发者ID:dvasilen，项目名称:Hive-Cassandra，代码行数:61，代码来源:HiveCassandraStandardColumnInputFormat.java

示例9: GetAllInfoOfUser

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
/**
 * To get all book-page information about an allocated 'username'
 * @param String username: like 'zju' 'Yanfei'
 */
public Map<String, List<String>> GetAllInfoOfUser(String username) {
	
	Map<String, List<String>> infoMap = new HashMap<String, List<String>>();
	
	SlicePredicate predicate = new SlicePredicate();// null, new
	SliceRange range = new SliceRange();
	
	range.setStart(new byte[0]);
	range.setFinish(new byte[0]); 
	range.setCount(200000);
	
	predicate.setSlice_range(range);

	ColumnParent parent = new ColumnParent();
	parent.column_family = "UserBookPage";

	String bookid;
	List<String> listPage = null;
	
	try {
		List<ColumnOrSuperColumn> results = client.get_slice(this.cassandraUtil.toByteBuffer(username), parent, predicate, ConsistencyLevel.ONE);
		
		for (ColumnOrSuperColumn result : results) {
			listPage = new ArrayList<String>();
			
			SuperColumn superColumn2 = result.super_column;
			
			bookid = "";
			bookid = new String(superColumn2.getName(), "UTF-8");           // bookid
			
			List<Column> columns2 = superColumn2.getColumns();
			
			for (Column column : columns2) {
				String columnName = new String(column.getName(), "UTF-8");
				
				if(columnName.equalsIgnoreCase("times")){
					continue;
				}else{
					listPage.add(new String(column.getName(), "UTF-8"));     // page-number
				}
			}
			
			infoMap.put(bookid, listPage);
		}
		
		return infoMap;
	} catch (Exception e) {
		 e.printStackTrace();
		 return infoMap;
	}

}
开发者ID:YinYanfei，项目名称:CadalWorkspace，代码行数:57，代码来源:UserBookPageInfo.java

示例10: getSplits

import org.apache.cassandra.thrift.SliceRange; //导入方法依赖的package包/类
@Override
public InputSplit[] getSplits(JobConf jobConf, int numSplits) throws IOException {
	final String ks = jobConf.get(AbstractCassandraSerDe.CASSANDRA_KEYSPACE_NAME);
	final String cf = jobConf.get(AbstractCassandraSerDe.CASSANDRA_CF_NAME);
	final int splitSize = jobConf.getInt(AbstractCassandraSerDe.CASSANDRA_SPLIT_SIZE, AbstractCassandraSerDe.DEFAULT_SPLIT_SIZE);
	final int rpcPort = jobConf.getInt(AbstractCassandraSerDe.CASSANDRA_PORT, Integer.parseInt(AbstractCassandraSerDe.DEFAULT_CASSANDRA_PORT));
	final String host = jobConf.get(AbstractCassandraSerDe.CASSANDRA_HOST);
	final String partitionerString = jobConf.get(AbstractCassandraSerDe.CASSANDRA_PARTITIONER);
	final String cassandraColumnMapping = jobConf.get(AbstractCassandraSerDe.CASSANDRA_COL_MAPPING);

	if (cassandraColumnMapping == null) {
		throw new IOException("cassandra.columns.mapping required for Cassandra Table.");
	}

	final Path dummyPath = new Path(ks + "/" + cf);

	SliceRange range = new SliceRange();
	range.setStart(new byte[0]);
	range.setFinish(new byte[0]);
	range.setReversed(false);
	range.setCount(Integer.MAX_VALUE);
	SlicePredicate predicate = new SlicePredicate();
	predicate.setSlice_range(range);

	ConfigHelper.setInputPartitioner(jobConf, partitionerString);
	ConfigHelper.setInputColumnFamily(jobConf, ks, cf);
	ConfigHelper.setInputSplitSize(jobConf, splitSize);
	ConfigHelper.setInputInitialAddress(jobConf, host);
	ConfigHelper.setInputSlicePredicate(jobConf, predicate);
	ConfigHelper.setInputRpcPort(jobConf, Integer.toString(rpcPort));

	ColumnFamilyInputFormat cfif = new ColumnFamilyInputFormat();
	InputSplit[] cfifSplits = cfif.getSplits(jobConf, numSplits);
	InputSplit[] results = new InputSplit[cfifSplits.length];
	for (int i = 0; i < cfifSplits.length; i++) {
		ColumnFamilySplit cfSplit = (ColumnFamilySplit) cfifSplits[i];
		SSTableSplit split = new SSTableSplit(cassandraColumnMapping, cfSplit.getStartToken(), cfSplit.getEndToken(), cfSplit.getLocations(), dummyPath);
		split.setKeyspace(ks);
		split.setColumnFamily(cf);
		split.setEstimatedRows(cfSplit.getLength());
		split.setPartitioner(partitionerString);
		results[i] = split;
		logger.debug("Created split: {}", split);
	}

	return results;
}
开发者ID:richardalow，项目名称:cassowary，代码行数:48，代码来源:SSTableInputFormatImpl.java


注：本文中的org.apache.cassandra.thrift.SliceRange.setCount方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。