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NIFI-271

This commit is contained in:
joewitt 2015-04-27 13:43:35 -04:00
parent 6a706458d0
commit 9a3b6bed62
34 changed files with 460 additions and 434 deletions
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3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-client-service/src/main/java/org/apache/nifi/distributed/cache/client/DistributedMapCacheClientService.java vendored
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@ -42,7 +42,7 @@ import org.apache.nifi.stream.io.DataOutputStream;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
@SeeAlso(classNames={"org.apache.nifi.distributed.cache.server.map.DistributedMapCacheServer", "org.apache.nifi.ssl.StandardSSLContextService"}) @SeeAlso(classNames = {"org.apache.nifi.distributed.cache.server.map.DistributedMapCacheServer", "org.apache.nifi.ssl.StandardSSLContextService"})
@CapabilityDescription("Provides the ability to communicate with a DistributedMapCacheServer. This can be used in order to share a Map " @CapabilityDescription("Provides the ability to communicate with a DistributedMapCacheServer. This can be used in order to share a Map "
+ "between nodes in a NiFi cluster") + "between nodes in a NiFi cluster")
public class DistributedMapCacheClientService extends AbstractControllerService implements DistributedMapCacheClient { public class DistributedMapCacheClientService extends AbstractControllerService implements DistributedMapCacheClient {
@ -299,6 +299,7 @@ public class DistributedMapCacheClientService extends AbstractControllerService
} }
private static interface CommsAction<T> { private static interface CommsAction<T> {
T execute(CommsSession commsSession) throws IOException; T execute(CommsSession commsSession) throws IOException;
} }

2
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-client-service/src/main/java/org/apache/nifi/distributed/cache/client/DistributedSetCacheClientService.java vendored
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@ -42,7 +42,7 @@ import org.apache.nifi.stream.io.DataOutputStream;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
@SeeAlso(classNames={"org.apache.nifi.distributed.cache.server.DistributedSetCacheServer", "org.apache.nifi.ssl.StandardSSLContextService"}) @SeeAlso(classNames = {"org.apache.nifi.distributed.cache.server.DistributedSetCacheServer", "org.apache.nifi.ssl.StandardSSLContextService"})
@CapabilityDescription("Provides the ability to communicate with a DistributedSetCacheServer. This can be used in order to share a Set " @CapabilityDescription("Provides the ability to communicate with a DistributedSetCacheServer. This can be used in order to share a Set "
+ "between nodes in a NiFi cluster") + "between nodes in a NiFi cluster")
public class DistributedSetCacheClientService extends AbstractControllerService implements DistributedSetCacheClient { public class DistributedSetCacheClientService extends AbstractControllerService implements DistributedSetCacheClient {

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-client-service/src/main/java/org/apache/nifi/distributed/cache/client/SSLCommsSession.java vendored
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@ -30,6 +30,7 @@ import org.apache.nifi.remote.io.socket.ssl.SSLSocketChannelInputStream;
import org.apache.nifi.remote.io.socket.ssl.SSLSocketChannelOutputStream; import org.apache.nifi.remote.io.socket.ssl.SSLSocketChannelOutputStream;
public class SSLCommsSession implements CommsSession { public class SSLCommsSession implements CommsSession {
private final SSLSocketChannel sslSocketChannel; private final SSLSocketChannel sslSocketChannel;
private final SSLContext sslContext; private final SSLContext sslContext;
private final String hostname; private final String hostname;
@ -94,10 +95,12 @@ public class SSLCommsSession implements CommsSession {
public int getPort() { public int getPort() {
return port; return port;
} }
@Override @Override
public SSLContext getSSLContext() { public SSLContext getSSLContext() {
return sslContext; return sslContext;
} }
@Override @Override
public long getTimeout(final TimeUnit timeUnit) { public long getTimeout(final TimeUnit timeUnit) {
return timeUnit.convert(sslSocketChannel.getTimeout(), TimeUnit.MILLISECONDS); return timeUnit.convert(sslSocketChannel.getTimeout(), TimeUnit.MILLISECONDS);

1
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-client-service/src/main/java/org/apache/nifi/distributed/cache/client/StandardCommsSession.java vendored
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@ -33,6 +33,7 @@ import org.apache.nifi.remote.io.socket.SocketChannelInputStream;
import org.apache.nifi.remote.io.socket.SocketChannelOutputStream; import org.apache.nifi.remote.io.socket.SocketChannelOutputStream;
public class StandardCommsSession implements CommsSession { public class StandardCommsSession implements CommsSession {
private final SocketChannel socketChannel; private final SocketChannel socketChannel;
private final String hostname; private final String hostname;
private final int port; private final int port;

18
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-client-service/src/main/resources/docs/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/additionalDetails.html
View File

@ -1,6 +1,6 @@
<!DOCTYPE html> <!DOCTYPE html>
<html lang="en"> <html lang="en">
<!-- <!--
Licensed to the Apache Software Foundation (ASF) under one or more Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership. this work for additional information regarding copyright ownership.
@ -13,14 +13,14 @@
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and See the License for the specific language governing permissions and
limitations under the License. limitations under the License.
--> -->
<head> <head>
<meta charset="utf-8" /> <meta charset="utf-8" />
<title>Distributed Map Cache Client Service</title> <title>Distributed Map Cache Client Service</title>
<link rel="stylesheet" href="../../css/component-usage.css" type="text/css" /> <link rel="stylesheet" href="../../css/component-usage.css" type="text/css" />
</head> </head>
<body> <body>
<p> <p>
Below is an example of how to create a client connection to your distributed map cache server. Below is an example of how to create a client connection to your distributed map cache server.
Note that the identifier in this example is <code>cache-client</code>. If you are using this template Note that the identifier in this example is <code>cache-client</code>. If you are using this template
@ -41,5 +41,5 @@
&lt;/service&gt; &lt;/service&gt;
&lt;/services&gt; &lt;/services&gt;
</pre> </pre>
</body> </body>
</html> </html>

21
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/AbstractCacheServer.java vendored
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@ -51,7 +51,8 @@ public abstract class AbstractCacheServer implements CacheServer {
private final int port; private final int port;
private final SSLContext sslContext; private final SSLContext sslContext;
protected volatile boolean stopped = false; protected volatile boolean stopped = false;
private final Set<Thread> processInputThreads = new CopyOnWriteArraySet<>();; private final Set<Thread> processInputThreads = new CopyOnWriteArraySet<>();
;
private volatile ServerSocketChannel serverSocketChannel; private volatile ServerSocketChannel serverSocketChannel;
@ -75,7 +76,7 @@ public abstract class AbstractCacheServer implements CacheServer {
final SocketChannel socketChannel; final SocketChannel socketChannel;
try { try {
socketChannel = serverSocketChannel.accept(); socketChannel = serverSocketChannel.accept();
logger.debug("Connected to {}", new Object[] { socketChannel }); logger.debug("Connected to {}", new Object[]{socketChannel});
} catch (final IOException e) { } catch (final IOException e) {
if (!stopped) { if (!stopped) {
logger.error("{} unable to accept connection from remote peer due to {}", this, e.toString()); logger.error("{} unable to accept connection from remote peer due to {}", this, e.toString());
@ -104,7 +105,7 @@ public abstract class AbstractCacheServer implements CacheServer {
rawOutputStream = new SSLSocketChannelOutputStream(sslSocketChannel); rawOutputStream = new SSLSocketChannelOutputStream(sslSocketChannel);
} }
} catch (IOException e) { } catch (IOException e) {
logger.error("Cannot create input and/or output streams for {}", new Object[] { identifier }, e); logger.error("Cannot create input and/or output streams for {}", new Object[]{identifier}, e);
if (logger.isDebugEnabled()) { if (logger.isDebugEnabled()) {
logger.error("", e); logger.error("", e);
} }
@ -127,12 +128,12 @@ public abstract class AbstractCacheServer implements CacheServer {
continueComms = listen(in, out, versionNegotiator.getVersion()); continueComms = listen(in, out, versionNegotiator.getVersion());
} }
// client has issued 'close' // client has issued 'close'
logger.debug("Client issued close on {}", new Object[] { socketChannel }); logger.debug("Client issued close on {}", new Object[]{socketChannel});
} catch (final SocketTimeoutException e) { } catch (final SocketTimeoutException e) {
logger.debug("30 sec timeout reached", e); logger.debug("30 sec timeout reached", e);
} catch (final IOException | HandshakeException e) { } catch (final IOException | HandshakeException e) {
if (!stopped) { if (!stopped) {
logger.error("{} unable to communicate with remote peer {} due to {}", new Object[] { this, peer, e.toString() }); logger.error("{} unable to communicate with remote peer {} due to {}", new Object[]{this, peer, e.toString()});
if (logger.isDebugEnabled()) { if (logger.isDebugEnabled()) {
logger.error("", e); logger.error("", e);
} }
@ -161,7 +162,7 @@ public abstract class AbstractCacheServer implements CacheServer {
@Override @Override
public void stop() throws IOException { public void stop() throws IOException {
stopped = true; stopped = true;
logger.info("Stopping CacheServer {}", new Object[] { this.identifier }); logger.info("Stopping CacheServer {}", new Object[]{this.identifier});
if (serverSocketChannel != null && serverSocketChannel.isOpen()) { if (serverSocketChannel != null && serverSocketChannel.isOpen()) {
serverSocketChannel.close(); serverSocketChannel.close();
@ -189,11 +190,11 @@ public abstract class AbstractCacheServer implements CacheServer {
/** /**
* Listens for incoming data and communicates with remote peer * Listens for incoming data and communicates with remote peer
* *
* @param in * @param in in
* @param out * @param out out
* @param version * @param version version
* @return <code>true</code> if communications should continue, <code>false</code> otherwise * @return <code>true</code> if communications should continue, <code>false</code> otherwise
* @throws IOException * @throws IOException ex
*/ */
protected abstract boolean listen(InputStream in, OutputStream out, int version) throws IOException; protected abstract boolean listen(InputStream in, OutputStream out, int version) throws IOException;
} }

1
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/CacheServer.java vendored
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@ -21,6 +21,7 @@ import java.io.IOException;
public interface CacheServer { public interface CacheServer {
void start() throws IOException; void start() throws IOException;
void stop() throws IOException; void stop() throws IOException;
} }

1
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/DistributedCacheServer.java vendored
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@ -29,6 +29,7 @@ import org.apache.nifi.processor.util.StandardValidators;
import org.apache.nifi.ssl.SSLContextService; import org.apache.nifi.ssl.SSLContextService;
public abstract class DistributedCacheServer extends AbstractControllerService { public abstract class DistributedCacheServer extends AbstractControllerService {
public static final String EVICTION_STRATEGY_LFU = "Least Frequently Used"; public static final String EVICTION_STRATEGY_LFU = "Least Frequently Used";
public static final String EVICTION_STRATEGY_LRU = "Least Recently Used"; public static final String EVICTION_STRATEGY_LRU = "Least Recently Used";
public static final String EVICTION_STRATEGY_FIFO = "First In, First Out"; public static final String EVICTION_STRATEGY_FIFO = "First In, First Out";

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/DistributedSetCacheServer.java vendored
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@ -25,6 +25,7 @@ import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.controller.ConfigurationContext; import org.apache.nifi.controller.ConfigurationContext;
import org.apache.nifi.ssl.SSLContextService; import org.apache.nifi.ssl.SSLContextService;
import org.apache.nifi.ssl.SSLContextService.ClientAuth; import org.apache.nifi.ssl.SSLContextService.ClientAuth;
@Tags({"distributed", "set", "distinct", "cache", "server"}) @Tags({"distributed", "set", "distinct", "cache", "server"})
@CapabilityDescription("Provides a set (collection of unique values) cache that can be accessed over a socket. " @CapabilityDescription("Provides a set (collection of unique values) cache that can be accessed over a socket. "
+ "Interaction with this service is typically accomplished via a DistributedSetCacheClient service.") + "Interaction with this service is typically accomplished via a DistributedSetCacheClient service.")
@ -39,7 +40,7 @@ public class DistributedSetCacheServer extends DistributedCacheServer {
final String evictionPolicyName = context.getProperty(EVICTION_POLICY).getValue(); final String evictionPolicyName = context.getProperty(EVICTION_POLICY).getValue();
final SSLContext sslContext; final SSLContext sslContext;
if ( sslContextService == null ) { if (sslContextService == null) {
sslContext = null; sslContext = null;
} else { } else {
sslContext = sslContextService.createSSLContext(ClientAuth.REQUIRED); sslContext = sslContextService.createSSLContext(ClientAuth.REQUIRED);

10
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/EvictionPolicy.java vendored
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@ -19,6 +19,7 @@ package org.apache.nifi.distributed.cache.server;
import java.util.Comparator; import java.util.Comparator;
public enum EvictionPolicy { public enum EvictionPolicy {
LFU(new LFUComparator()), LFU(new LFUComparator()),
LRU(new LRUComparator()), LRU(new LRUComparator()),
FIFO(new FIFOComparator()); FIFO(new FIFOComparator());
@ -34,9 +35,10 @@ public enum EvictionPolicy {
} }
public static class LFUComparator implements Comparator<CacheRecord> { public static class LFUComparator implements Comparator<CacheRecord> {
@Override @Override
public int compare(final CacheRecord o1, final CacheRecord o2) { public int compare(final CacheRecord o1, final CacheRecord o2) {
if ( o1.equals(o2) ) { if (o1.equals(o2)) {
return 0; return 0;
} }
@ -47,9 +49,10 @@ public enum EvictionPolicy {
} }
public static class LRUComparator implements Comparator<CacheRecord> { public static class LRUComparator implements Comparator<CacheRecord> {
@Override @Override
public int compare(final CacheRecord o1, final CacheRecord o2) { public int compare(final CacheRecord o1, final CacheRecord o2) {
if ( o1.equals(o2) ) { if (o1.equals(o2)) {
return 0; return 0;
} }
@ -59,9 +62,10 @@ public enum EvictionPolicy {
} }
public static class FIFOComparator implements Comparator<CacheRecord> { public static class FIFOComparator implements Comparator<CacheRecord> {
@Override @Override
public int compare(final CacheRecord o1, final CacheRecord o2) { public int compare(final CacheRecord o1, final CacheRecord o2) {
if ( o1.equals(o2) ) { if (o1.equals(o2)) {
return 0; return 0;
} }

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/SetCacheServer.java vendored
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@ -97,8 +97,9 @@ public class SetCacheServer extends AbstractCacheServer {
@Override @Override
protected void finalize() throws Throwable { protected void finalize() throws Throwable {
if (!stopped) if (!stopped) {
stop(); stop();
} }
}
} }

4
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/DistributedMapCacheServer.java vendored
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@ -33,7 +33,7 @@ import org.apache.nifi.ssl.SSLContextService.ClientAuth;
@Tags({"distributed", "cluster", "map", "cache", "server", "key/value"}) @Tags({"distributed", "cluster", "map", "cache", "server", "key/value"})
@CapabilityDescription("Provides a map (key/value) cache that can be accessed over a socket. Interaction with this service" @CapabilityDescription("Provides a map (key/value) cache that can be accessed over a socket. Interaction with this service"
+ " is typically accomplished via a DistributedMapCacheClient service.") + " is typically accomplished via a DistributedMapCacheClient service.")
@SeeAlso(classNames={"org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService", "org.apache.nifi.ssl.StandardSSLContextService"}) @SeeAlso(classNames = {"org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService", "org.apache.nifi.ssl.StandardSSLContextService"})
public class DistributedMapCacheServer extends DistributedCacheServer { public class DistributedMapCacheServer extends DistributedCacheServer {
@Override @Override
@ -45,7 +45,7 @@ public class DistributedMapCacheServer extends DistributedCacheServer {
final String evictionPolicyName = context.getProperty(EVICTION_POLICY).getValue(); final String evictionPolicyName = context.getProperty(EVICTION_POLICY).getValue();
final SSLContext sslContext; final SSLContext sslContext;
if ( sslContextService == null ) { if (sslContextService == null) {
sslContext = null; sslContext = null;
} else { } else {
sslContext = sslContextService.createSSLContext(ClientAuth.REQUIRED); sslContext = sslContextService.createSSLContext(ClientAuth.REQUIRED);

4
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/MapCache.java vendored
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@ -22,8 +22,12 @@ import java.nio.ByteBuffer;
public interface MapCache { public interface MapCache {
MapPutResult putIfAbsent(ByteBuffer key, ByteBuffer value) throws IOException; MapPutResult putIfAbsent(ByteBuffer key, ByteBuffer value) throws IOException;
boolean containsKey(ByteBuffer key) throws IOException; boolean containsKey(ByteBuffer key) throws IOException;
ByteBuffer get(ByteBuffer key) throws IOException; ByteBuffer get(ByteBuffer key) throws IOException;
ByteBuffer remove(ByteBuffer key) throws IOException; ByteBuffer remove(ByteBuffer key) throws IOException;
void shutdown() throws IOException; void shutdown() throws IOException;
} }

5
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/MapCacheRecord.java vendored
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@ -21,6 +21,7 @@ import java.nio.ByteBuffer;
import org.apache.nifi.distributed.cache.server.CacheRecord; import org.apache.nifi.distributed.cache.server.CacheRecord;
public class MapCacheRecord extends CacheRecord { public class MapCacheRecord extends CacheRecord {
private final ByteBuffer key; private final ByteBuffer key;
private final ByteBuffer value; private final ByteBuffer value;
@ -44,11 +45,11 @@ public class MapCacheRecord extends CacheRecord {
@Override @Override
public boolean equals(final Object obj) { public boolean equals(final Object obj) {
if ( obj == this ) { if (obj == this) {
return true; return true;
} }
if ( obj instanceof MapCacheRecord ) { if (obj instanceof MapCacheRecord) {
final MapCacheRecord that = ((MapCacheRecord) obj); final MapCacheRecord that = ((MapCacheRecord) obj);
return key.equals(that.key) && value.equals(that.value); return key.equals(that.key) && value.equals(that.value);
} }

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/MapCacheServer.java vendored
View File

@ -131,9 +131,10 @@ public class MapCacheServer extends AbstractCacheServer {
@Override @Override
protected void finalize() throws Throwable { protected void finalize() throws Throwable {
if (!stopped) if (!stopped) {
stop(); stop();
} }
}
private byte[] readValue(final DataInputStream dis) throws IOException { private byte[] readValue(final DataInputStream dis) throws IOException {
final int numBytes = dis.readInt(); final int numBytes = dis.readInt();

1
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/MapPutResult.java vendored
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@ -19,6 +19,7 @@ package org.apache.nifi.distributed.cache.server.map;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
public class MapPutResult { public class MapPutResult {
private final boolean successful; private final boolean successful;
private final ByteBuffer key, value; private final ByteBuffer key, value;
private final ByteBuffer existingValue; private final ByteBuffer existingValue;

21
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/PersistentMapCache.java vendored
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@ -48,8 +48,8 @@ public class PersistentMapCache implements MapCache {
synchronized void restore() throws IOException { synchronized void restore() throws IOException {
final Collection<MapWaliRecord> recovered = wali.recoverRecords(); final Collection<MapWaliRecord> recovered = wali.recoverRecords();
for ( final MapWaliRecord record : recovered ) { for (final MapWaliRecord record : recovered) {
if ( record.getUpdateType() == UpdateType.CREATE ) { if (record.getUpdateType() == UpdateType.CREATE) {
wrapped.putIfAbsent(record.getKey(), record.getValue()); wrapped.putIfAbsent(record.getKey(), record.getValue());
} }
} }
@ -58,20 +58,20 @@ public class PersistentMapCache implements MapCache {
@Override @Override
public MapPutResult putIfAbsent(final ByteBuffer key, final ByteBuffer value) throws IOException { public MapPutResult putIfAbsent(final ByteBuffer key, final ByteBuffer value) throws IOException {
final MapPutResult putResult = wrapped.putIfAbsent(key, value); final MapPutResult putResult = wrapped.putIfAbsent(key, value);
if ( putResult.isSuccessful() ) { if (putResult.isSuccessful()) {
// The put was successful. // The put was successful.
final MapWaliRecord record = new MapWaliRecord(UpdateType.CREATE, key, value); final MapWaliRecord record = new MapWaliRecord(UpdateType.CREATE, key, value);
final List<MapWaliRecord> records = new ArrayList<>(); final List<MapWaliRecord> records = new ArrayList<>();
records.add(record); records.add(record);
if ( putResult.getEvictedKey() != null ) { if (putResult.getEvictedKey() != null) {
records.add(new MapWaliRecord(UpdateType.DELETE, putResult.getEvictedKey(), putResult.getEvictedValue())); records.add(new MapWaliRecord(UpdateType.DELETE, putResult.getEvictedKey(), putResult.getEvictedValue()));
} }
wali.update(Collections.singletonList(record), false); wali.update(Collections.singletonList(record), false);
final long modCount = modifications.getAndIncrement(); final long modCount = modifications.getAndIncrement();
if ( modCount > 0 && modCount % 100000 == 0 ) { if (modCount > 0 && modCount % 100000 == 0) {
wali.checkpoint(); wali.checkpoint();
} }
} }
@ -92,28 +92,27 @@ public class PersistentMapCache implements MapCache {
@Override @Override
public ByteBuffer remove(ByteBuffer key) throws IOException { public ByteBuffer remove(ByteBuffer key) throws IOException {
final ByteBuffer removeResult = wrapped.remove(key); final ByteBuffer removeResult = wrapped.remove(key);
if ( removeResult != null ) { if (removeResult != null) {
final MapWaliRecord record = new MapWaliRecord(UpdateType.DELETE, key, removeResult); final MapWaliRecord record = new MapWaliRecord(UpdateType.DELETE, key, removeResult);
final List<MapWaliRecord> records = new ArrayList<>(1); final List<MapWaliRecord> records = new ArrayList<>(1);
records.add(record); records.add(record);
wali.update(records, false); wali.update(records, false);
final long modCount = modifications.getAndIncrement(); final long modCount = modifications.getAndIncrement();
if ( modCount > 0 && modCount % 1000 == 0 ) { if (modCount > 0 && modCount % 1000 == 0) {
wali.checkpoint(); wali.checkpoint();
} }
} }
return removeResult; return removeResult;
} }
@Override @Override
public void shutdown() throws IOException { public void shutdown() throws IOException {
wali.shutdown(); wali.shutdown();
} }
private static class MapWaliRecord { private static class MapWaliRecord {
private final UpdateType updateType; private final UpdateType updateType;
private final ByteBuffer key; private final ByteBuffer key;
private final ByteBuffer value; private final ByteBuffer value;
@ -142,7 +141,7 @@ public class PersistentMapCache implements MapCache {
@Override @Override
public void serializeEdit(MapWaliRecord previousRecordState, MapWaliRecord newRecordState, java.io.DataOutputStream out) throws IOException { public void serializeEdit(MapWaliRecord previousRecordState, MapWaliRecord newRecordState, java.io.DataOutputStream out) throws IOException {
final UpdateType updateType = newRecordState.getUpdateType(); final UpdateType updateType = newRecordState.getUpdateType();
if ( updateType == UpdateType.DELETE ) { if (updateType == UpdateType.DELETE) {
out.write(0); out.write(0);
} else { } else {
out.write(1); out.write(1);
@ -165,7 +164,7 @@ public class PersistentMapCache implements MapCache {
@Override @Override
public MapWaliRecord deserializeEdit(final DataInputStream in, final Map<Object, MapWaliRecord> currentRecordStates, final int version) throws IOException { public MapWaliRecord deserializeEdit(final DataInputStream in, final Map<Object, MapWaliRecord> currentRecordStates, final int version) throws IOException {
final int updateTypeValue = in.read(); final int updateTypeValue = in.read();
if ( updateTypeValue < 0 ) { if (updateTypeValue < 0) {
throw new EOFException(); throw new EOFException();
} }

13
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/map/SimpleMapCache.java vendored
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@ -33,6 +33,7 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
public class SimpleMapCache implements MapCache { public class SimpleMapCache implements MapCache {
private static final Logger logger = LoggerFactory.getLogger(SimpleMapCache.class); private static final Logger logger = LoggerFactory.getLogger(SimpleMapCache.class);
private final Map<ByteBuffer, MapCacheRecord> cache = new HashMap<>(); private final Map<ByteBuffer, MapCacheRecord> cache = new HashMap<>();
@ -61,7 +62,7 @@ public class SimpleMapCache implements MapCache {
// don't need synchronized because this method is only called when the writeLock is held, and all // don't need synchronized because this method is only called when the writeLock is held, and all
// public methods obtain either the read or write lock // public methods obtain either the read or write lock
private MapCacheRecord evict() { private MapCacheRecord evict() {
if ( cache.size() < maxSize ) { if (cache.size() < maxSize) {
return null; return null;
} }
@ -69,7 +70,7 @@ public class SimpleMapCache implements MapCache {
final ByteBuffer valueToEvict = inverseCacheMap.remove(recordToEvict); final ByteBuffer valueToEvict = inverseCacheMap.remove(recordToEvict);
cache.remove(valueToEvict); cache.remove(valueToEvict);
if ( logger.isDebugEnabled() ) { if (logger.isDebugEnabled()) {
logger.debug("Evicting value {} from cache", new String(valueToEvict.array(), StandardCharsets.UTF_8)); logger.debug("Evicting value {} from cache", new String(valueToEvict.array(), StandardCharsets.UTF_8));
} }
@ -81,14 +82,14 @@ public class SimpleMapCache implements MapCache {
writeLock.lock(); writeLock.lock();
try { try {
final MapCacheRecord record = cache.get(key); final MapCacheRecord record = cache.get(key);
if ( record == null ) { if (record == null) {
// Record is null. We will add. // Record is null. We will add.
final MapCacheRecord evicted = evict(); final MapCacheRecord evicted = evict();
final MapCacheRecord newRecord = new MapCacheRecord(key, value); final MapCacheRecord newRecord = new MapCacheRecord(key, value);
cache.put(key, newRecord); cache.put(key, newRecord);
inverseCacheMap.put(newRecord, key); inverseCacheMap.put(newRecord, key);
if ( evicted == null ) { if (evicted == null) {
return new MapPutResult(true, key, value, null, null, null); return new MapPutResult(true, key, value, null, null, null);
} else { } else {
return new MapPutResult(true, key, value, null, evicted.getKey(), evicted.getValue()); return new MapPutResult(true, key, value, null, evicted.getKey(), evicted.getValue());
@ -111,7 +112,7 @@ public class SimpleMapCache implements MapCache {
readLock.lock(); readLock.lock();
try { try {
final MapCacheRecord record = cache.get(key); final MapCacheRecord record = cache.get(key);
if ( record == null ) { if (record == null) {
return false; return false;
} }
@ -130,7 +131,7 @@ public class SimpleMapCache implements MapCache {
readLock.lock(); readLock.lock();
try { try {
final MapCacheRecord record = cache.get(key); final MapCacheRecord record = cache.get(key);
if ( record == null ) { if (record == null) {
return null; return null;
} }

19
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/set/PersistentSetCache.java vendored
View File

@ -48,8 +48,8 @@ public class PersistentSetCache implements SetCache {
public synchronized void restore() throws IOException { public synchronized void restore() throws IOException {
final Collection<SetRecord> recovered = wali.recoverRecords(); final Collection<SetRecord> recovered = wali.recoverRecords();
for ( final SetRecord record : recovered ) { for (final SetRecord record : recovered) {
if ( record.getUpdateType() == UpdateType.CREATE ) { if (record.getUpdateType() == UpdateType.CREATE) {
addIfAbsent(record.getBuffer()); addIfAbsent(record.getBuffer());
} }
} }
@ -58,14 +58,14 @@ public class PersistentSetCache implements SetCache {
@Override @Override
public synchronized SetCacheResult remove(final ByteBuffer value) throws IOException { public synchronized SetCacheResult remove(final ByteBuffer value) throws IOException {
final SetCacheResult removeResult = wrapped.remove(value); final SetCacheResult removeResult = wrapped.remove(value);
if ( removeResult.getResult() ) { if (removeResult.getResult()) {
final SetRecord record = new SetRecord(UpdateType.DELETE, value); final SetRecord record = new SetRecord(UpdateType.DELETE, value);
final List<SetRecord> records = new ArrayList<>(); final List<SetRecord> records = new ArrayList<>();
records.add(record); records.add(record);
wali.update(records, false); wali.update(records, false);
final long modCount = modifications.getAndIncrement(); final long modCount = modifications.getAndIncrement();
if ( modCount > 0 && modCount % 1000 == 0 ) { if (modCount > 0 && modCount % 1000 == 0) {
wali.checkpoint(); wali.checkpoint();
} }
} }
@ -76,20 +76,20 @@ public class PersistentSetCache implements SetCache {
@Override @Override
public synchronized SetCacheResult addIfAbsent(final ByteBuffer value) throws IOException { public synchronized SetCacheResult addIfAbsent(final ByteBuffer value) throws IOException {
final SetCacheResult addResult = wrapped.addIfAbsent(value); final SetCacheResult addResult = wrapped.addIfAbsent(value);
if ( addResult.getResult() ) { if (addResult.getResult()) {
final SetRecord record = new SetRecord(UpdateType.CREATE, value); final SetRecord record = new SetRecord(UpdateType.CREATE, value);
final List<SetRecord> records = new ArrayList<>(); final List<SetRecord> records = new ArrayList<>();
records.add(record); records.add(record);
final SetCacheRecord evictedRecord = addResult.getEvictedRecord(); final SetCacheRecord evictedRecord = addResult.getEvictedRecord();
if ( evictedRecord != null ) { if (evictedRecord != null) {
records.add(new SetRecord(UpdateType.DELETE, evictedRecord.getValue())); records.add(new SetRecord(UpdateType.DELETE, evictedRecord.getValue()));
} }
wali.update(records, false); wali.update(records, false);
final long modCount = modifications.getAndIncrement(); final long modCount = modifications.getAndIncrement();
if ( modCount > 0 && modCount % 1000 == 0 ) { if (modCount > 0 && modCount % 1000 == 0) {
wali.checkpoint(); wali.checkpoint();
} }
} }
@ -108,6 +108,7 @@ public class PersistentSetCache implements SetCache {
} }
private static class SetRecord { private static class SetRecord {
private final UpdateType updateType; private final UpdateType updateType;
private final ByteBuffer value; private final ByteBuffer value;
@ -134,7 +135,7 @@ public class PersistentSetCache implements SetCache {
@Override @Override
public void serializeEdit(final SetRecord previousRecordState, final SetRecord newRecordState, final DataOutputStream out) throws IOException { public void serializeEdit(final SetRecord previousRecordState, final SetRecord newRecordState, final DataOutputStream out) throws IOException {
final UpdateType updateType = newRecordState.getUpdateType(); final UpdateType updateType = newRecordState.getUpdateType();
if ( updateType == UpdateType.DELETE ) { if (updateType == UpdateType.DELETE) {
out.write(0); out.write(0);
} else { } else {
out.write(1); out.write(1);
@ -153,7 +154,7 @@ public class PersistentSetCache implements SetCache {
@Override @Override
public SetRecord deserializeEdit(final DataInputStream in, final Map<Object, SetRecord> currentRecordStates, final int version) throws IOException { public SetRecord deserializeEdit(final DataInputStream in, final Map<Object, SetRecord> currentRecordStates, final int version) throws IOException {
final int value = in.read(); final int value = in.read();
if ( value < 0 ) { if (value < 0) {
throw new EOFException(); throw new EOFException();
} }

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/set/SetCache.java vendored
View File

@ -22,8 +22,11 @@ import java.nio.ByteBuffer;
public interface SetCache { public interface SetCache {
SetCacheResult remove(ByteBuffer value) throws IOException; SetCacheResult remove(ByteBuffer value) throws IOException;
SetCacheResult addIfAbsent(ByteBuffer value) throws IOException; SetCacheResult addIfAbsent(ByteBuffer value) throws IOException;
SetCacheResult contains(ByteBuffer value) throws IOException; SetCacheResult contains(ByteBuffer value) throws IOException;
void shutdown() throws IOException; void shutdown() throws IOException;
} }

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/set/SetCacheRecord.java vendored
View File

@ -21,6 +21,7 @@ import java.nio.ByteBuffer;
import org.apache.nifi.distributed.cache.server.CacheRecord; import org.apache.nifi.distributed.cache.server.CacheRecord;
public class SetCacheRecord extends CacheRecord { public class SetCacheRecord extends CacheRecord {
private final ByteBuffer value; private final ByteBuffer value;
public SetCacheRecord(final ByteBuffer value) { public SetCacheRecord(final ByteBuffer value) {
@ -38,7 +39,7 @@ public class SetCacheRecord extends CacheRecord {
@Override @Override
public boolean equals(final Object obj) { public boolean equals(final Object obj) {
if ( this == obj ) { if (this == obj) {
return true; return true;
} }

3
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/set/SetCacheResult.java vendored
View File

@ -16,9 +16,8 @@
*/ */
package org.apache.nifi.distributed.cache.server.set; package org.apache.nifi.distributed.cache.server.set;
public class SetCacheResult { public class SetCacheResult {
private final boolean result; private final boolean result;
private final SetCacheRecord stats; private final SetCacheRecord stats;
private final SetCacheRecord evictedRecord; private final SetCacheRecord evictedRecord;

11
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/java/org/apache/nifi/distributed/cache/server/set/SimpleSetCache.java vendored
View File

@ -30,6 +30,7 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
public class SimpleSetCache implements SetCache { public class SimpleSetCache implements SetCache {
private static final Logger logger = LoggerFactory.getLogger(SimpleSetCache.class); private static final Logger logger = LoggerFactory.getLogger(SimpleSetCache.class);
private final Map<ByteBuffer, SetCacheRecord> cache = new HashMap<>(); private final Map<ByteBuffer, SetCacheRecord> cache = new HashMap<>();
@ -46,7 +47,7 @@ public class SimpleSetCache implements SetCache {
} }
private synchronized SetCacheRecord evict() { private synchronized SetCacheRecord evict() {
if ( cache.size() < maxSize ) { if (cache.size() < maxSize) {
return null; return null;
} }
@ -54,7 +55,7 @@ public class SimpleSetCache implements SetCache {
final ByteBuffer valueToEvict = inverseCacheMap.remove(recordToEvict); final ByteBuffer valueToEvict = inverseCacheMap.remove(recordToEvict);
cache.remove(valueToEvict); cache.remove(valueToEvict);
if ( logger.isDebugEnabled() ) { if (logger.isDebugEnabled()) {
logger.debug("Evicting value {} from cache", new String(valueToEvict.array(), StandardCharsets.UTF_8)); logger.debug("Evicting value {} from cache", new String(valueToEvict.array(), StandardCharsets.UTF_8));
} }
@ -64,7 +65,7 @@ public class SimpleSetCache implements SetCache {
@Override @Override
public synchronized SetCacheResult addIfAbsent(final ByteBuffer value) { public synchronized SetCacheResult addIfAbsent(final ByteBuffer value) {
final SetCacheRecord record = cache.get(value); final SetCacheRecord record = cache.get(value);
if ( record == null ) { if (record == null) {
final SetCacheRecord evicted = evict(); final SetCacheRecord evicted = evict();
final SetCacheRecord newRecord = new SetCacheRecord(value); final SetCacheRecord newRecord = new SetCacheRecord(value);
cache.put(value, newRecord); cache.put(value, newRecord);
@ -83,7 +84,7 @@ public class SimpleSetCache implements SetCache {
@Override @Override
public synchronized SetCacheResult contains(final ByteBuffer value) { public synchronized SetCacheResult contains(final ByteBuffer value) {
final SetCacheRecord record = cache.get(value); final SetCacheRecord record = cache.get(value);
if ( record == null ) { if (record == null) {
return new SetCacheResult(false, null, null); return new SetCacheResult(false, null, null);
} else { } else {
// We have to remove the record and add it again in order to cause the Map to stay sorted // We have to remove the record and add it again in order to cause the Map to stay sorted
@ -98,7 +99,7 @@ public class SimpleSetCache implements SetCache {
@Override @Override
public synchronized SetCacheResult remove(final ByteBuffer value) { public synchronized SetCacheResult remove(final ByteBuffer value) {
final SetCacheRecord record = cache.remove(value); final SetCacheRecord record = cache.remove(value);
if ( record == null ) { if (record == null) {
return new SetCacheResult(false, null, null); return new SetCacheResult(false, null, null);
} else { } else {
inverseCacheMap.remove(record); inverseCacheMap.remove(record);

18
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/main/resources/docs/org.apache.nifi.distributed.cache.server.map.DistributedMapCacheServer/additionalDetails.html
View File

@ -1,6 +1,6 @@
<!DOCTYPE html> <!DOCTYPE html>
<html lang="en"> <html lang="en">
<!-- <!--
Licensed to the Apache Software Foundation (ASF) under one or more Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership. this work for additional information regarding copyright ownership.
@ -13,14 +13,14 @@
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and See the License for the specific language governing permissions and
limitations under the License. limitations under the License.
--> -->
<head> <head>
<meta charset="utf-8" /> <meta charset="utf-8" />
<title>Distributed Map Cache Client Service</title> <title>Distributed Map Cache Client Service</title>
<link rel="stylesheet" href="../../css/component-usage.css" type="text/css" /> <link rel="stylesheet" href="../../css/component-usage.css" type="text/css" />
</head> </head>
<body> <body>
<p> <p>
Below is an example of how to create a distributed map cache server for clients to connect to. Below is an example of how to create a distributed map cache server for clients to connect to.
Note that the identifier in this example is <code>cache-server</code>. If you are using this template Note that the identifier in this example is <code>cache-server</code>. If you are using this template
@ -42,5 +42,5 @@
&lt;/service&gt; &lt;/service&gt;
&lt;/services&gt; &lt;/services&gt;
</pre> </pre>
</body> </body>
</html> </html>

5
nifi/nifi-nar-bundles/nifi-standard-services/nifi-distributed-cache-services-bundle/nifi-distributed-cache-server/src/test/java/org/apache/nifi/distributed/cache/server/TestServerAndClient.java vendored
View File

@ -374,8 +374,7 @@ public class TestServerAndClient {
public void testClientTermination() throws InitializationException, IOException, InterruptedException { public void testClientTermination() throws InitializationException, IOException, InterruptedException {
/** /**
* This bypasses the test for build environments in OS X running Java 1.8 due to a JVM bug * This bypasses the test for build environments in OS X running Java 1.8 due to a JVM bug See: https://issues.apache.org/jira/browse/NIFI-437
* See: https://issues.apache.org/jira/browse/NIFI-437
*/ */
Assume.assumeFalse("testClientTermination is skipped due to build environment being OS X with JDK 1.8. See https://issues.apache.org/jira/browse/NIFI-437", Assume.assumeFalse("testClientTermination is skipped due to build environment being OS X with JDK 1.8. See https://issues.apache.org/jira/browse/NIFI-437",
SystemUtils.IS_OS_MAC && SystemUtils.IS_JAVA_1_8); SystemUtils.IS_OS_MAC && SystemUtils.IS_JAVA_1_8);
@ -509,6 +508,7 @@ public class TestServerAndClient {
} }
private static class StringSerializer implements Serializer<String> { private static class StringSerializer implements Serializer<String> {
@Override @Override
public void serialize(final String value, final OutputStream output) throws SerializationException, IOException { public void serialize(final String value, final OutputStream output) throws SerializationException, IOException {
output.write(value.getBytes(StandardCharsets.UTF_8)); output.write(value.getBytes(StandardCharsets.UTF_8));
@ -516,6 +516,7 @@ public class TestServerAndClient {
} }
private static class StringDeserializer implements Deserializer<String> { private static class StringDeserializer implements Deserializer<String> {
@Override @Override
public String deserialize(final byte[] input) throws DeserializationException, IOException { public String deserialize(final byte[] input) throws DeserializationException, IOException {
return (input.length == 0) ? null : new String(input, StandardCharsets.UTF_8); return (input.length == 0) ? null : new String(input, StandardCharsets.UTF_8);

27
nifi/nifi-nar-bundles/nifi-standard-services/nifi-http-context-map-api/src/main/java/org/apache/nifi/http/HttpContextMap.java
View File

@ -22,20 +22,15 @@ import javax.servlet.http.HttpServletResponse;
import org.apache.nifi.controller.ControllerService; import org.apache.nifi.controller.ControllerService;
/** /**
* <p> * <p>
* An interface that provides the capability of receiving an HTTP servlet request in one component * An interface that provides the capability of receiving an HTTP servlet request in one component and responding to that request in another component.
* and responding to that request in another component.
* </p> * </p>
* *
* <p> * <p>
* The intended flow is for the component receiving the HTTP request to register the request, response, * The intended flow is for the component receiving the HTTP request to register the request, response, and AsyncContext with a particular identifier via the
* and AsyncContext with a particular identifier via the * {@link #register(String, HttpServletRequest, HttpServletResponse, AsyncContext)} method. Another component is then able to obtain the response by providing that identifier to the
* {@link #register(String, HttpServletRequest, HttpServletResponse, AsyncContext)} * {@link #getResponse(String)} method. After writing to the HttpServletResponse, the transaction is to then be completed via the {@link #complete(String)} method.
* method. Another component is then able to obtain the response
* by providing that identifier to the {@link #getResponse(String)} method. After writing to the
* HttpServletResponse, the transaction is to then be completed via the {@link #complete(String)} method.
* </p> * </p>
*/ */
public interface HttpContextMap extends ControllerService { public interface HttpContextMap extends ControllerService {
@ -43,10 +38,10 @@ public interface HttpContextMap extends ControllerService {
/** /**
* Registers an HttpServletRequest, HttpServletResponse, and the AsyncContext for a given identifier * Registers an HttpServletRequest, HttpServletResponse, and the AsyncContext for a given identifier
* *
* @param identifier * @param identifier identifier
* @param request * @param request request
* @param response * @param response response
* @param context * @param context context
* *
* @return true if register is successful, false if the context map is too full because too many requests have already been received and not processed * @return true if register is successful, false if the context map is too full because too many requests have already been received and not processed
* *
@ -56,14 +51,16 @@ public interface HttpContextMap extends ControllerService {
/** /**
* Retrieves the HttpServletResponse for the given identifier, if it exists * Retrieves the HttpServletResponse for the given identifier, if it exists
* @param identifier *
* @param identifier identifier
* @return the HttpServletResponse for the given identifier, or {@code null} if it does not exist * @return the HttpServletResponse for the given identifier, or {@code null} if it does not exist
*/ */
HttpServletResponse getResponse(String identifier); HttpServletResponse getResponse(String identifier);
/** /**
* Marks the HTTP request/response for the given identifier as complete * Marks the HTTP request/response for the given identifier as complete
* @param identifier *
* @param identifier identifier
* *
* @throws IllegalStateException if the identifier is not registered to a valid AsyncContext * @throws IllegalStateException if the identifier is not registered to a valid AsyncContext
*/ */

19
nifi/nifi-nar-bundles/nifi-standard-services/nifi-http-context-map-bundle/nifi-http-context-map/src/main/java/org/apache/nifi/http/StandardHttpContextMap.java
View File

@ -42,12 +42,13 @@ import org.apache.nifi.controller.ConfigurationContext;
import org.apache.nifi.processor.util.StandardValidators; import org.apache.nifi.processor.util.StandardValidators;
@Tags({"http", "request", "response"}) @Tags({"http", "request", "response"})
@SeeAlso(classNames={ @SeeAlso(classNames = {
"org.apache.nifi.processors.standard.HandleHttpRequest", "org.apache.nifi.processors.standard.HandleHttpRequest",
"org.apache.nifi.processors.standard.HandleHttpResponse"}) "org.apache.nifi.processors.standard.HandleHttpResponse"})
@CapabilityDescription("Provides the ability to store and retrieve HTTP requests and responses external to a Processor, so that " @CapabilityDescription("Provides the ability to store and retrieve HTTP requests and responses external to a Processor, so that "
+ "multiple Processors can interact with the same HTTP request.") + "multiple Processors can interact with the same HTTP request.")
public class StandardHttpContextMap extends AbstractControllerService implements HttpContextMap { public class StandardHttpContextMap extends AbstractControllerService implements HttpContextMap {
public static final PropertyDescriptor MAX_OUTSTANDING_REQUESTS = new PropertyDescriptor.Builder() public static final PropertyDescriptor MAX_OUTSTANDING_REQUESTS = new PropertyDescriptor.Builder()
.name("Maximum Outstanding Requests") .name("Maximum Outstanding Requests")
.description("The maximum number of HTTP requests that can be outstanding at any one time. Any attempt to register an additional HTTP Request will cause an error") .description("The maximum number of HTTP requests that can be outstanding at any one time. Any attempt to register an additional HTTP Request will cause an error")
@ -90,7 +91,7 @@ public class StandardHttpContextMap extends AbstractControllerService implements
@OnDisabled @OnDisabled
public void cleanup() { public void cleanup() {
if ( executor != null ) { if (executor != null) {
executor.shutdown(); executor.shutdown();
} }
} }
@ -99,12 +100,12 @@ public class StandardHttpContextMap extends AbstractControllerService implements
public boolean register(final String identifier, final HttpServletRequest request, final HttpServletResponse response, final AsyncContext context) { public boolean register(final String identifier, final HttpServletRequest request, final HttpServletResponse response, final AsyncContext context) {
// fail if there are too many already. Maybe add a configuration property for how many // fail if there are too many already. Maybe add a configuration property for how many
// outstanding, with a default of say 5000 // outstanding, with a default of say 5000
if ( wrapperMap.size() >= maxSize ) { if (wrapperMap.size() >= maxSize) {
return false; return false;
} }
final Wrapper wrapper = new Wrapper(request, response, context); final Wrapper wrapper = new Wrapper(request, response, context);
final Wrapper existing = wrapperMap.putIfAbsent(identifier, wrapper); final Wrapper existing = wrapperMap.putIfAbsent(identifier, wrapper);
if ( existing != null ) { if (existing != null) {
throw new IllegalStateException("HTTP Request already registered with identifier " + identifier); throw new IllegalStateException("HTTP Request already registered with identifier " + identifier);
} }
@ -114,7 +115,7 @@ public class StandardHttpContextMap extends AbstractControllerService implements
@Override @Override
public HttpServletResponse getResponse(final String identifier) { public HttpServletResponse getResponse(final String identifier) {
final Wrapper wrapper = wrapperMap.get(identifier); final Wrapper wrapper = wrapperMap.get(identifier);
if ( wrapper == null ) { if (wrapper == null) {
return null; return null;
} }
@ -124,7 +125,7 @@ public class StandardHttpContextMap extends AbstractControllerService implements
@Override @Override
public void complete(final String identifier) { public void complete(final String identifier) {
final Wrapper wrapper = wrapperMap.remove(identifier); final Wrapper wrapper = wrapperMap.remove(identifier);
if ( wrapper == null ) { if (wrapper == null) {
throw new IllegalStateException("No HTTP Request registered with identifier " + identifier); throw new IllegalStateException("No HTTP Request registered with identifier " + identifier);
} }
@ -132,6 +133,7 @@ public class StandardHttpContextMap extends AbstractControllerService implements
} }
private static class Wrapper { private static class Wrapper {
@SuppressWarnings("unused") @SuppressWarnings("unused")
private final HttpServletRequest request; private final HttpServletRequest request;
private final HttpServletResponse response; private final HttpServletResponse response;
@ -158,15 +160,16 @@ public class StandardHttpContextMap extends AbstractControllerService implements
} }
private class CleanupExpiredRequests implements Runnable { private class CleanupExpiredRequests implements Runnable {
@Override @Override
public void run() { public void run() {
final long now = System.nanoTime(); final long now = System.nanoTime();
final long threshold = now - maxRequestNanos; final long threshold = now - maxRequestNanos;
final Iterator<Map.Entry<String, Wrapper>> itr = wrapperMap.entrySet().iterator(); final Iterator<Map.Entry<String, Wrapper>> itr = wrapperMap.entrySet().iterator();
while ( itr.hasNext() ) { while (itr.hasNext()) {
final Map.Entry<String, Wrapper> entry = itr.next(); final Map.Entry<String, Wrapper> entry = itr.next();
if ( entry.getValue().getNanoTimeAdded() < threshold ) { if (entry.getValue().getNanoTimeAdded() < threshold) {
itr.remove(); itr.remove();
// send SERVICE_UNAVAILABLE // send SERVICE_UNAVAILABLE

1
nifi/nifi-nar-bundles/nifi-standard-services/nifi-ssl-context-bundle/nifi-ssl-context-service/src/main/java/org/apache/nifi/ssl/StandardSSLContextService.java
View File

@ -238,7 +238,6 @@ public class StandardSSLContextService extends AbstractControllerService impleme
} }
} }
@Override @Override
public SSLContext createSSLContext(final ClientAuth clientAuth) throws ProcessException { public SSLContext createSSLContext(final ClientAuth clientAuth) throws ProcessException {
try { try {