com.hazelcast.internal.ascii.memcache.DeleteCommandProcessor Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, Hazelcast, Inc. All Rights Reserved.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
package com.hazelcast.internal.ascii.memcache;
import com.hazelcast.internal.ascii.TextCommandConstants;
import com.hazelcast.internal.ascii.TextCommandService;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import static java.lang.String.format;
public class DeleteCommandProcessor extends MemcacheCommandProcessor {
public DeleteCommandProcessor(TextCommandService textCommandService) {
super(textCommandService);
}
public void handle(DeleteCommand command) {
String key;
try {
key = URLDecoder.decode(command.getKey(), "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(format("failed to decode key [%s] using UTF-8", command.getKey()));
}
String mapName = DEFAULT_MAP_NAME;
int index = key.indexOf(':');
if (index != -1) {
mapName = MAP_NAME_PRECEDER + key.substring(0, index);
key = key.substring(index + 1);
}
if (key.equals("")) {
textCommandService.deleteAll(mapName);
} else {
final Object oldValue = textCommandService.delete(mapName, key);
if (oldValue == null) {
textCommandService.incrementDeleteMissCount();
command.setResponse(TextCommandConstants.NOT_FOUND);
} else {
textCommandService.incrementDeleteHitCount(1);
command.setResponse(TextCommandConstants.DELETED);
}
}
if (command.shouldReply()) {
textCommandService.sendResponse(command);
}
}
public void handleRejection(DeleteCommand command) {
handle(command);
}
}