本文整理汇总了Java中backtype.storm.coordination.CoordinatedBolt.IdStreamSpec类的典型用法代码示例。如果您正苦于以下问题：Java IdStreamSpec类的具体用法？Java IdStreamSpec怎么用？Java IdStreamSpec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。
IdStreamSpec类属于backtype.storm.coordination.CoordinatedBolt包，在下文中一共展示了IdStreamSpec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，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createTopology
import backtype.storm.coordination.CoordinatedBolt.IdStreamSpec; //导入依赖的package包/类
private StormTopology createTopology(DRPCSpout spout) {
final String SPOUT_ID = "spout";
final String PREPARE_ID = "prepare-request";
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SPOUT_ID, spout);
builder.setBolt(PREPARE_ID, new PrepareRequest())
.noneGrouping(SPOUT_ID);
int i = 0;
for (; i < _components.size(); i++) {
Component component = _components.get(i);
Map<String, SourceArgs> source = new HashMap<String, SourceArgs>();
if (i == 1) {
source.put(boltId(i - 1), SourceArgs.single());
} else if (i >= 2) {
source.put(boltId(i - 1), SourceArgs.all());
}
IdStreamSpec idSpec = null;
if (i == _components.size() - 1
&& component.bolt instanceof FinishedCallback) {
idSpec = IdStreamSpec.makeDetectSpec(PREPARE_ID,
PrepareRequest.ID_STREAM);
}
BoltDeclarer declarer = builder.setBolt(boltId(i),
new CoordinatedBolt(component.bolt, source, idSpec),
component.parallelism);
for (Map conf : component.componentConfs) {
declarer.addConfigurations(conf);
}
if (idSpec != null) {
declarer.fieldsGrouping(idSpec.getGlobalStreamId()
.get_componentId(), PrepareRequest.ID_STREAM,
new Fields("request"));
}
if (i == 0 && component.declarations.isEmpty()) {
declarer.noneGrouping(PREPARE_ID, PrepareRequest.ARGS_STREAM);
} else {
String prevId;
if (i == 0) {
prevId = PREPARE_ID;
} else {
prevId = boltId(i - 1);
}
for (InputDeclaration declaration : component.declarations) {
declaration.declare(prevId, declarer);
}
}
if (i > 0) {
declarer.directGrouping(boltId(i - 1),
Constants.COORDINATED_STREAM_ID);
}
}
IRichBolt lastBolt = _components.get(_components.size() - 1).bolt;
OutputFieldsGetter getter = new OutputFieldsGetter();
lastBolt.declareOutputFields(getter);
Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
if (streams.size() != 1) {
throw new RuntimeException(
"Must declare exactly one stream from last bolt in LinearDRPCTopology");
}
String outputStream = streams.keySet().iterator().next();
List<String> fields = streams.get(outputStream).get_output_fields();
if (fields.size() != 2) {
throw new RuntimeException(
"Output stream of last component in LinearDRPCTopology must contain exactly two fields. The first should be the request id, and the second should be the result.");
}
builder.setBolt(boltId(i), new JoinResult(PREPARE_ID))
.fieldsGrouping(boltId(i - 1), outputStream,
new Fields(fields.get(0)))
.fieldsGrouping(PREPARE_ID, PrepareRequest.RETURN_STREAM,
new Fields("request"));
i++;
builder.setBolt(boltId(i), new ReturnResults()).noneGrouping(
boltId(i - 1));
return builder.createTopology();
}
示例2: createTopology
import backtype.storm.coordination.CoordinatedBolt.IdStreamSpec; //导入依赖的package包/类
private StormTopology createTopology(DRPCSpout spout) {
final String SPOUT_ID = "spout";
final String PREPARE_ID = "prepare-request";
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SPOUT_ID, spout);
builder.setBolt(PREPARE_ID, new PrepareRequest()).noneGrouping(SPOUT_ID);
int i = 0;
for (; i < _components.size(); i++) {
Component component = _components.get(i);
Map<String, SourceArgs> source = new HashMap<String, SourceArgs>();
if (i == 1) {
source.put(boltId(i - 1), SourceArgs.single());
} else if (i >= 2) {
source.put(boltId(i - 1), SourceArgs.all());
}
IdStreamSpec idSpec = null;
if (i == _components.size() - 1 && component.bolt instanceof FinishedCallback) {
idSpec = IdStreamSpec.makeDetectSpec(PREPARE_ID, PrepareRequest.ID_STREAM);
}
BoltDeclarer declarer = builder.setBolt(boltId(i), new CoordinatedBolt(component.bolt, source, idSpec), component.parallelism);
for (Map conf : component.componentConfs) {
declarer.addConfigurations(conf);
}
if (idSpec != null) {
declarer.fieldsGrouping(idSpec.getGlobalStreamId().get_componentId(), PrepareRequest.ID_STREAM, new Fields("request"));
}
if (i == 0 && component.declarations.isEmpty()) {
declarer.noneGrouping(PREPARE_ID, PrepareRequest.ARGS_STREAM);
} else {
String prevId;
if (i == 0) {
prevId = PREPARE_ID;
} else {
prevId = boltId(i - 1);
}
for (InputDeclaration declaration : component.declarations) {
declaration.declare(prevId, declarer);
}
}
if (i > 0) {
declarer.directGrouping(boltId(i - 1), Constants.COORDINATED_STREAM_ID);
}
}
IRichBolt lastBolt = _components.get(_components.size() - 1).bolt;
OutputFieldsGetter getter = new OutputFieldsGetter();
lastBolt.declareOutputFields(getter);
Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
if (streams.size() != 1) {
throw new RuntimeException("Must declare exactly one stream from last bolt in LinearDRPCTopology");
}
String outputStream = streams.keySet().iterator().next();
List<String> fields = streams.get(outputStream).get_output_fields();
if (fields.size() != 2) {
throw new RuntimeException(
"Output stream of last component in LinearDRPCTopology must contain exactly two fields. The first should be the request id, and the second should be the result.");
}
builder.setBolt("JoinResult", new JoinResult(PREPARE_ID)).fieldsGrouping(boltId(i - 1), outputStream, new Fields(fields.get(0)))
.fieldsGrouping(PREPARE_ID, PrepareRequest.RETURN_STREAM, new Fields("request"));
i++;
builder.setBolt("ReturnResults", new ReturnResults()).noneGrouping("JoinResult");
return builder.createTopology();
}
示例3: createTopology
import backtype.storm.coordination.CoordinatedBolt.IdStreamSpec; //导入依赖的package包/类
private StormTopology createTopology(DRPCSpout spout) {
final String SPOUT_ID = "spout";
final String PREPARE_ID = "prepare-request";
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SPOUT_ID, spout);
builder.setBolt(PREPARE_ID, new PrepareRequest())
.noneGrouping(SPOUT_ID);
int i=0;
for(; i<_components.size();i++) {
Component component = _components.get(i);
Map<String, SourceArgs> source = new HashMap<String, SourceArgs>();
if (i==1) {
source.put(boltId(i-1), SourceArgs.single());
} else if (i>=2) {
source.put(boltId(i-1), SourceArgs.all());
}
IdStreamSpec idSpec = null;
if(i==_components.size()-1 && component.bolt instanceof FinishedCallback) {
idSpec = IdStreamSpec.makeDetectSpec(PREPARE_ID, PrepareRequest.ID_STREAM);
}
BoltDeclarer declarer = builder.setBolt(
boltId(i),
new CoordinatedBolt(component.bolt, source, idSpec),
component.parallelism);
for(Map conf: component.componentConfs) {
declarer.addConfigurations(conf);
}
if(idSpec!=null) {
declarer.fieldsGrouping(idSpec.getGlobalStreamId().get_componentId(), PrepareRequest.ID_STREAM, new Fields("request"));
}
if(i==0 && component.declarations.isEmpty()) {
declarer.noneGrouping(PREPARE_ID, PrepareRequest.ARGS_STREAM);
} else {
String prevId;
if(i==0) {
prevId = PREPARE_ID;
} else {
prevId = boltId(i-1);
}
for(InputDeclaration declaration: component.declarations) {
declaration.declare(prevId, declarer);
}
}
if(i>0) {
declarer.directGrouping(boltId(i-1), Constants.COORDINATED_STREAM_ID);
}
}
IRichBolt lastBolt = _components.get(_components.size()-1).bolt;
OutputFieldsGetter getter = new OutputFieldsGetter();
lastBolt.declareOutputFields(getter);
Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
if(streams.size()!=1) {
throw new RuntimeException("Must declare exactly one stream from last bolt in LinearDRPCTopology");
}
String outputStream = streams.keySet().iterator().next();
List<String> fields = streams.get(outputStream).get_output_fields();
if(fields.size()!=2) {
throw new RuntimeException("Output stream of last component in LinearDRPCTopology must contain exactly two fields. The first should be the request id, and the second should be the result.");
}
builder.setBolt(boltId(i), new JoinResult(PREPARE_ID))
.fieldsGrouping(boltId(i-1), outputStream, new Fields(fields.get(0)))
.fieldsGrouping(PREPARE_ID, PrepareRequest.RETURN_STREAM, new Fields("request"));
i++;
builder.setBolt(boltId(i), new ReturnResults())
.noneGrouping(boltId(i-1));
return builder.createTopology();
}