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Java Invocation类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.hadoop.hbase.ipc.Invocation的典型用法代码示例。如果您正苦于以下问题:Java Invocation类的具体用法?Java Invocation怎么用?Java Invocation使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



Invocation类属于org.apache.hadoop.hbase.ipc包,在下文中一共展示了Invocation类的3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,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: apply

import org.apache.hadoop.hbase.ipc.Invocation; //导入依赖的package包/类
@Override
public Integer apply(Writable from) {
  if (!(from instanceof Invocation)) return HConstants.NORMAL_QOS;

  Invocation inv = (Invocation) from;
  String methodName = inv.getMethodName();

  Integer priorityByAnnotation = annotatedQos.get(methodName);
  if (priorityByAnnotation != null) {
    return priorityByAnnotation;
  }

  // scanner methods...
  if (methodName.equals("next") || methodName.equals("close")) {
    // translate!
    Long scannerId;
    try {
      scannerId = (Long) inv.getParameters()[0];
    } catch (ClassCastException ignored) {
      // LOG.debug("Low priority: " + from);
      return HConstants.NORMAL_QOS;
    }
    String scannerIdString = Long.toString(scannerId);
    RegionScanner scanner = scanners.get(scannerIdString);
    if (scanner != null && scanner.getRegionInfo().isMetaTable()) {
      // LOG.debug("High priority scanner request: " + scannerId);
      return HConstants.HIGH_QOS;
    }
  } else if (inv.getParameterClasses().length == 0) {
    // Just let it through. This is getOnlineRegions, etc.
  } else if (inv.getParameterClasses()[0] == byte[].class) {
    // first arg is byte array, so assume this is a regionname:
    if (isMetaTable((byte[]) inv.getParameters()[0])) {
      // LOG.debug("High priority with method: " + methodName +
      // " and region: "
      // + Bytes.toString((byte[]) inv.getParameters()[0]));
      return HConstants.HIGH_QOS;
    }
  } else if (inv.getParameterClasses()[0] == MultiAction.class) {
    MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
    Set<byte[]> regions = ma.getRegions();
    // ok this sucks, but if any single of the actions touches a meta, the
    // whole
    // thing gets pingged high priority. This is a dangerous hack because
    // people
    // can get their multi action tagged high QOS by tossing a Get(.META.)
    // AND this
    // regionserver hosts META/-ROOT-
    for (byte[] region : regions) {
      if (isMetaTable(region)) {
        // LOG.debug("High priority multi with region: " +
        // Bytes.toString(region));
        return HConstants.HIGH_QOS; // short circuit for the win.
      }
    }
  }
  // LOG.debug("Low priority: " + from.toString());
  return HConstants.NORMAL_QOS;
}
 
开发者ID:fengchen8086,项目名称:LCIndex-HBase-0.94.16,代码行数:60,代码来源:HRegionServer.java


示例2: apply

import org.apache.hadoop.hbase.ipc.Invocation; //导入依赖的package包/类
@Override
public Integer apply(Writable from) {
  if (!(from instanceof Invocation)) return HConstants.NORMAL_QOS;

  Invocation inv = (Invocation) from;
  String methodName = inv.getMethodName();

  Integer priorityByAnnotation = annotatedQos.get(methodName);
  if (priorityByAnnotation != null) {
    return priorityByAnnotation;
  }

  // scanner methods...
  if (methodName.equals("next") || methodName.equals("close")) {
    // translate!
    Long scannerId;
    try {
      scannerId = (Long) inv.getParameters()[0];
    } catch (ClassCastException ignored) {
      // LOG.debug("Low priority: " + from);
      return HConstants.NORMAL_QOS;
    }
    String scannerIdString = Long.toString(scannerId);
    RegionScanner scanner = scanners.get(scannerIdString);
    if (scanner != null && scanner.getRegionInfo().isMetaTable()) {
      // LOG.debug("High priority scanner request: " + scannerId);
      return HConstants.HIGH_QOS;
    }
  } else if (inv.getParameterClasses().length == 0) {
   // Just let it through.  This is getOnlineRegions, etc.
  } else if (inv.getParameterClasses()[0] == byte[].class) {
    // first arg is byte array, so assume this is a regionname:
    if (isMetaTable((byte[]) inv.getParameters()[0])) {
      // LOG.debug("High priority with method: " + methodName +
      // " and region: "
      // + Bytes.toString((byte[]) inv.getParameters()[0]));
      return HConstants.HIGH_QOS;
    }
  } else if (inv.getParameterClasses()[0] == MultiAction.class) {
    MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
    Set<byte[]> regions = ma.getRegions();
    // ok this sucks, but if any single of the actions touches a meta, the
    // whole
    // thing gets pingged high priority. This is a dangerous hack because
    // people
    // can get their multi action tagged high QOS by tossing a Get(.META.)
    // AND this
    // regionserver hosts META/-ROOT-
    for (byte[] region : regions) {
      if (isMetaTable(region)) {
        // LOG.debug("High priority multi with region: " +
        // Bytes.toString(region));
        return HConstants.HIGH_QOS; // short circuit for the win.
      }
    }
  }
  // LOG.debug("Low priority: " + from.toString());
  return HConstants.NORMAL_QOS;
}
 
开发者ID:wanhao,项目名称:IRIndex,代码行数:60,代码来源:HRegionServer.java


示例3: apply

import org.apache.hadoop.hbase.ipc.Invocation; //导入依赖的package包/类
@Override
public Integer apply(Writable from) {
  if (!(from instanceof Invocation)) return NORMAL_QOS;

  Invocation inv = (Invocation) from;
  String methodName = inv.getMethodName();

  Integer priorityByAnnotation = annotatedQos.get(methodName);
  if (priorityByAnnotation != null) {
    return priorityByAnnotation;
  }

  // scanner methods...
  if (methodName.equals("next") || methodName.equals("close")) {
    // translate!
    Long scannerId;
    try {
      scannerId = (Long) inv.getParameters()[0];
    } catch (ClassCastException ignored) {
      // LOG.debug("Low priority: " + from);
      return NORMAL_QOS; // doh.
    }
    String scannerIdString = Long.toString(scannerId);
    RegionScanner scanner = scanners.get(scannerIdString);
    if (scanner != null && scanner.getRegionInfo().isMetaRegion()) {
      // LOG.debug("High priority scanner request: " + scannerId);
      return HIGH_QOS;
    }
  } else if (inv.getParameterClasses().length == 0) {
   // Just let it through.  This is getOnlineRegions, etc.
  } else if (inv.getParameterClasses()[0] == byte[].class) {
    // first arg is byte array, so assume this is a regionname:
    if (isMetaRegion((byte[]) inv.getParameters()[0])) {
      // LOG.debug("High priority with method: " + methodName +
      // " and region: "
      // + Bytes.toString((byte[]) inv.getParameters()[0]));
      return HIGH_QOS;
    }
  } else if (inv.getParameterClasses()[0] == MultiAction.class) {
    MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
    Set<byte[]> regions = ma.getRegions();
    // ok this sucks, but if any single of the actions touches a meta, the
    // whole
    // thing gets pingged high priority. This is a dangerous hack because
    // people
    // can get their multi action tagged high QOS by tossing a Get(.META.)
    // AND this
    // regionserver hosts META/-ROOT-
    for (byte[] region : regions) {
      if (isMetaRegion(region)) {
        // LOG.debug("High priority multi with region: " +
        // Bytes.toString(region));
        return HIGH_QOS; // short circuit for the win.
      }
    }
  }
  // LOG.debug("Low priority: " + from.toString());
  return NORMAL_QOS;
}
 
开发者ID:lifeng5042,项目名称:RStore,代码行数:60,代码来源:HRegionServer.java



注:本文中的org.apache.hadoop.hbase.ipc.Invocation类示例整理自Github/MSDocs等源码及文档管理平台,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。


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