com.cloudera.flume.master.SaveConfigCommand.java Source code

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Here is the source code for com.cloudera.flume.master.SaveConfigCommand.java

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/**
 * Licensed to Cloudera, Inc. under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  Cloudera, Inc. 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 com.cloudera.flume.master;

import java.io.IOException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.base.Preconditions;

/**
 * Save all configs to a file.
 */
public class SaveConfigCommand {

    static final Logger LOG = LoggerFactory.getLogger(SaveConfigCommand.class);

    /**
     * Actual Command execution.
     */
    public static Execable buildExecable() {
        return new Execable() {
            @Override
            public void exec(String[] argv) throws IOException {
                Preconditions.checkArgument(argv.length == 1);
                String configFileName = argv[0];
                FlumeMaster master = FlumeMaster.getInstance();
                try {
                    master.getSpecMan().saveConfigFile(configFileName);
                } catch (IOException e) {
                    LOG.error("Save Config " + configFileName + " failed", e);
                    throw e;
                }
            }
        };
    }

}