net.spy.memcached.protocol.ascii.FlushByPrefixOperationImpl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of arcus-java-client Show documentation

Java client for Arcus memcached

There is a newer version: 1.13.2

/*
 * arcus-java-client : Arcus Java client
 * Copyright 2010-2014 NAVER Corp.
 *
 * 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 net.spy.memcached.protocol.ascii;

import java.nio.ByteBuffer;

import net.spy.memcached.ops.APIType;
import net.spy.memcached.ops.FlushOperation;
import net.spy.memcached.ops.OperationCallback;
import net.spy.memcached.ops.OperationState;
import net.spy.memcached.ops.OperationStatus;
import net.spy.memcached.ops.OperationType;

/**
 * Arcus flush by prefix operation.
 */
final class FlushByPrefixOperationImpl extends OperationImpl implements
		FlushOperation {

	private static final OperationStatus OK = new OperationStatus(true, "OK");
	private static final OperationStatus NOT_FOUND = new OperationStatus(true, "NOT_FOUND");

	private final String prefix;
	private final int delay;
	private final boolean noreply;

	public FlushByPrefixOperationImpl(String prefix, int delay,
			boolean noreply, OperationCallback cb) {
		super(cb);
		this.prefix = prefix;
		this.delay = delay;
		this.noreply = noreply;
		setAPIType(APIType.FLUSH);
		setOperationType(OperationType.WRITE);
	}

	@Override
	public void handleLine(String line) {
		getLogger().debug("Flush completed successfully");
		/* ENABLE_REPLICATION if */
		if (line.equals("SWITCHOVER") || line.equals("REPL_SLAVE")) {
			receivedMoveOperations(line);
			return;
		}

		/* ENABLE_REPLICATION end */
		getCallback().receivedStatus(matchStatus(line, OK, NOT_FOUND));
		transitionState(OperationState.COMPLETE);
	}

	@Override
	public void initialize() {
		StringBuilder sb = new StringBuilder();
		sb.append("flush_prefix ");
		sb.append(prefix);
		if (delay != -1)
			sb.append(" ").append(delay);
		if (noreply)
			sb.append(" noreply");
		sb.append("\r\n");

		ByteBuffer bb = ByteBuffer.allocate(sb.length());
		bb.put(sb.toString().getBytes());
		bb.flip();
		setBuffer(bb);
	}
}