org.jclouds.elasticstack.functions.MapToDriveInfo.java Source code

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Here is the source code for org.jclouds.elasticstack.functions.MapToDriveInfo.java

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/*
 * 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.jclouds.elasticstack.functions;

import java.util.Map;
import java.util.Map.Entry;

import javax.annotation.Resource;
import javax.inject.Singleton;

import org.jclouds.elasticstack.domain.ClaimType;
import org.jclouds.elasticstack.domain.DriveInfo;
import org.jclouds.elasticstack.domain.DriveMetrics;
import org.jclouds.elasticstack.domain.DriveStatus;
import org.jclouds.logging.Logger;

import com.google.common.base.Function;
import com.google.common.base.Splitter;
import com.google.common.collect.Maps;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class MapToDriveInfo implements Function<Map<String, String>, DriveInfo> {

    @Resource
    protected Logger logger = Logger.NULL;

    @Override
    public DriveInfo apply(Map<String, String> from) {
        if (from.size() == 0)
            return null;
        DriveInfo.Builder builder = new DriveInfo.Builder();
        builder.name(from.get("name"));
        if (from.containsKey("tags"))
            builder.tags(Splitter.on(' ').split(from.get("tags")));
        if (from.containsKey("status"))
            builder.status(DriveStatus.fromValue(from.get("status")));
        builder.metrics(buildMetrics(from));
        builder.user(from.get("user"));
        builder.encryptionCipher(from.get("encryption:cipher"));
        builder.uuid(from.get("drive"));
        if (from.containsKey("claim:type"))
            builder.claimType(ClaimType.fromValue(from.get("claim:type")));
        if (from.containsKey("claimed"))
            builder.claimed(Splitter.on(' ').split(from.get("claimed")));
        if (from.containsKey("readers"))
            builder.readers(Splitter.on(' ').split(from.get("readers")));
        if (from.containsKey("size"))
            builder.size(Long.valueOf(from.get("size")));
        Map<String, String> metadata = Maps.newLinkedHashMap();
        for (Entry<String, String> entry : from.entrySet()) {
            if (entry.getKey().startsWith("user:"))
                metadata.put(entry.getKey().substring(entry.getKey().indexOf(':') + 1), entry.getValue());
        }
        builder.userMetadata(metadata);
        try {
            return builder.build();
        } catch (NullPointerException e) {
            logger.trace("entry missing data: %s; %s", e.getMessage(), from);
            return null;
        }
    }

    protected DriveMetrics buildMetrics(Map<String, String> from) {
        DriveMetrics.Builder metricsBuilder = new DriveMetrics.Builder();
        if (from.containsKey("read:bytes"))
            metricsBuilder.readBytes(Long.valueOf(from.get("read:bytes")));
        if (from.containsKey("read:requests"))
            metricsBuilder.readRequests(Long.valueOf(from.get("read:requests")));
        if (from.containsKey("write:bytes"))
            metricsBuilder.writeBytes(Long.valueOf(from.get("write:bytes")));
        if (from.containsKey("write:requests"))
            metricsBuilder.writeRequests(Long.valueOf(from.get("write:requests")));
        return metricsBuilder.build();
    }
}