curator-master/curator-framework/src/main/java/org/apache/curator/framework/imps/BackgroundSyncImpl.java
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.curator.framework.imps;

import org.apache.curator.drivers.OperationTrace;
import org.apache.curator.framework.api.CuratorEventType;
import org.apache.zookeeper.AsyncCallback;

class BackgroundSyncImpl implements BackgroundOperation<String> {
    private final CuratorFrameworkImpl client;
    private final Object context;

    BackgroundSyncImpl(CuratorFrameworkImpl client, Object context) {
        this.client = client;
        this.context = context;
    }

    @Override
    public CuratorEventType getBackgroundEventType() {
        return CuratorEventType.SYNC;
    }

    @Override
    public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception {
        final OperationTrace trace = client.getZookeeperClient().startAdvancedTracer("BackgroundSyncImpl");
        final String data = operationAndData.getData();
        client.getZooKeeper()
                .sync(
                        data,
                        new AsyncCallback.VoidCallback() {
                            @Override
                            public void processResult(int rc, String path, Object ctx) {
                                trace.setReturnCode(rc)
                                        .setRequestBytesLength(data)
                                        .commit();
                                CuratorEventImpl event = new CuratorEventImpl(
                                        client,
                                        CuratorEventType.SYNC,
                                        rc,
                                        path,
                                        null,
                                        ctx,
                                        null,
                                        null,
                                        null,
                                        null,
                                        null,
                                        null);
                                client.processBackgroundOperation(operationAndData, event);
                            }
                        },
                        context);
    }
}
