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InfinispanRemoteClient.java
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Sat, May 4, 06:36

InfinispanRemoteClient.java
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/**
* Copyright (c) 2015-2016 YCSB contributors. All rights reserved.
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); you
* may not use this file except in compliance with the License. You
* may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License. See accompanying
* LICENSE file.
*/
package com.yahoo.ycsb.db;
import com.yahoo.ycsb.*;
import org.infinispan.client.hotrod.RemoteCache;
import org.infinispan.client.hotrod.RemoteCacheManager;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.Vector;
/**
* This is a client implementation for Infinispan 5.x in client-server mode.
*/
public class InfinispanRemoteClient extends DB {
private static final Log LOGGER = LogFactory.getLog(InfinispanRemoteClient.class);
private RemoteCacheManager remoteIspnManager;
private String cacheName = null;
@Override
public void init() throws DBException {
remoteIspnManager = RemoteCacheManagerHolder.getInstance(getProperties());
cacheName = getProperties().getProperty("cache");
}
@Override
public void cleanup() {
remoteIspnManager.stop();
remoteIspnManager = null;
}
@Override
public Status insert(String table, String recordKey, Map<String, ByteIterator> values) {
String compositKey = createKey(table, recordKey);
Map<String, String> stringValues = new HashMap<>();
StringByteIterator.putAllAsStrings(stringValues, values);
try {
cache().put(compositKey, stringValues);
return Status.OK;
} catch (Exception e) {
LOGGER.error(e);
return Status.ERROR;
}
}
@Override
public Status read(String table, String recordKey, Set<String> fields, Map<String, ByteIterator> result) {
String compositKey = createKey(table, recordKey);
try {
Map<String, String> values = cache().get(compositKey);
if (values == null || values.isEmpty()) {
return Status.NOT_FOUND;
}
if (fields == null) { //get all field/value pairs
StringByteIterator.putAllAsByteIterators(result, values);
} else {
for (String field : fields) {
String value = values.get(field);
if (value != null) {
result.put(field, new StringByteIterator(value));
}
}
}
return Status.OK;
} catch (Exception e) {
LOGGER.error(e);
return Status.ERROR;
}
}
@Override
public Status scan(String table, String startkey, int recordcount, Set<String> fields,
Vector<HashMap<String, ByteIterator>> result) {
LOGGER.warn("Infinispan does not support scan semantics");
return Status.NOT_IMPLEMENTED;
}
@Override
public Status update(String table, String recordKey, Map<String, ByteIterator> values) {
String compositKey = createKey(table, recordKey);
try {
Map<String, String> stringValues = new HashMap<>();
StringByteIterator.putAllAsStrings(stringValues, values);
cache().put(compositKey, stringValues);
return Status.OK;
} catch (Exception e) {
LOGGER.error(e);
return Status.ERROR;
}
}
@Override
public Status delete(String table, String recordKey) {
String compositKey = createKey(table, recordKey);
try {
cache().remove(compositKey);
return Status.OK;
} catch (Exception e) {
LOGGER.error(e);
return Status.ERROR;
}
}
private RemoteCache<String, Map<String, String>> cache() {
if (this.cacheName != null) {
return remoteIspnManager.getCache(cacheName);
} else {
return remoteIspnManager.getCache();
}
}
private String createKey(String table, String recordKey) {
return table + "-" + recordKey;
}
}

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