com.hazelcast.internal.ascii.memcache.GetCommand Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, 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.AbstractTextCommand;
import com.hazelcast.internal.ascii.TextCommandConstants;
import java.nio.ByteBuffer;
import static com.hazelcast.internal.ascii.TextCommandConstants.TextCommandType.GET;
import static com.hazelcast.nio.IOUtil.copyToHeapBuffer;
public class GetCommand extends AbstractTextCommand {
protected final String key;
private ByteBuffer value;
private ByteBuffer endMarker;
public GetCommand(TextCommandConstants.TextCommandType type, String key) {
super(type);
this.key = key;
}
public GetCommand(String key) {
this(GET, key);
}
public String getKey() {
return key;
}
@Override
public boolean readFrom(ByteBuffer src) {
return true;
}
public void setValue(MemcacheEntry entry) {
if (entry != null) {
value = entry.toNewBuffer();
}
endMarker = ByteBuffer.wrap(TextCommandConstants.END);
}
@Override
public boolean writeTo(ByteBuffer dst) {
if (value != null) {
copyToHeapBuffer(value, dst);
}
copyToHeapBuffer(endMarker, dst);
return !((value != null && value.hasRemaining())
|| endMarker.hasRemaining());
}
@Override
public String toString() {
return "GetCommand{"
+ "key='"
+ key
+ ", value="
+ value
+ '\''
+ "} "
+ super.toString();
}
}