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Add MultiScheme Support #10

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merged 1 commit into from Nov 30, 2012
Merged

Add MultiScheme Support #10

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70 changes: 42 additions & 28 deletions src/jvm/backtype/storm/spout/KestrelThriftSpout.java
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@@ -1,22 +1,25 @@
package backtype.storm.spout;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Queue;

import net.lag.kestrel.thrift.Item;

import org.apache.log4j.Logger;
import org.apache.thrift7.TException;

import backtype.storm.Config;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichSpout;
import java.util.HashSet;
import java.util.Map;
import java.util.List;
import java.util.Iterator;
import java.util.Queue;
import java.util.LinkedList;
import backtype.storm.tuple.Fields;
import backtype.storm.utils.Utils;
import java.util.ArrayList;
import java.util.Arrays;
import org.apache.log4j.Logger;
import net.lag.kestrel.thrift.Item;
import org.apache.thrift7.TException;


/**
Expand All @@ -36,7 +39,7 @@ public class KestrelThriftSpout extends BaseRichSpout {
private int _port = -1;
private String _queueName = null;
private SpoutOutputCollector _collector;
private Scheme _scheme;
private MultiScheme _scheme;

private List<KestrelClientInfo> _kestrels;
private int _emitIndex;
Expand Down Expand Up @@ -93,26 +96,34 @@ public void closeClient() {
}
}

public KestrelThriftSpout(List<String> hosts, int port, String queueName, Scheme scheme) {
if(hosts.isEmpty()) {
throw new IllegalArgumentException("Must configure at least one host");
}
_port = port;
_hosts = hosts;
_queueName = queueName;
_scheme = scheme;
}
public KestrelThriftSpout(List<String> hosts, int port, String queueName, Scheme scheme) {
this(hosts, port, queueName, new SchemeAsMultiScheme(scheme));
}

public KestrelThriftSpout(String hostname, int port, String queueName, Scheme scheme) {
this(Arrays.asList(hostname), port, queueName, scheme);
public KestrelThriftSpout(List<String> hosts, int port, String queueName, MultiScheme scheme) {
if(hosts.isEmpty()) {
throw new IllegalArgumentException("Must configure at least one host");
}
_port = port;
_hosts = hosts;
_queueName = queueName;
_scheme = scheme;
}

public KestrelThriftSpout(String hostname, int port, String queueName, Scheme scheme) {
this(hostname, port, queueName, new SchemeAsMultiScheme(scheme));
}

public KestrelThriftSpout(String hostname, int port, String queueName, MultiScheme scheme) {
this(Arrays.asList(hostname), port, queueName, scheme);
}

public KestrelThriftSpout(String hostname, int port, String queueName) {
this(hostname, port, queueName, new RawScheme());
this(hostname, port, queueName, new RawMultiScheme());
}

public KestrelThriftSpout(List<String> hosts, int port, String queueName) {
this(hosts, port, queueName, new RawScheme());
this(hosts, port, queueName, new RawMultiScheme());
}

public Fields getOutputFields() {
Expand Down Expand Up @@ -173,14 +184,17 @@ public boolean bufferKestrelGet(int index) {
HashSet toAck = new HashSet();

for(Item item : items) {
List<Object> retItems = _scheme.deserialize(item.get_data());
Iterable<List<Object>> retItems = _scheme.deserialize(item.get_data());

if (retItems != null) {
EmitItem emitItem = new EmitItem(retItems, new KestrelSourceId(index, item.get_id()));
for(List<Object> retItem: retItems) {
EmitItem emitItem = new EmitItem(retItem, new KestrelSourceId(index, item.get_id()));

if(!_emitBuffer.offer(emitItem)) {
if(!_emitBuffer.offer(emitItem)) {
throw new RuntimeException("KestrelThriftSpout's Internal Buffer Enqeueue Failed.");
}
}

} else {
toAck.add(item.get_id());
}
Expand Down