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Licensed to jclouds, Inc. (jclouds) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. jclouds 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.cloudsigma.functions;

Author(s):
Adrian Cole
public class MapToDriveMetrics implements Function<Map<StringString>, Map<String, ? extends DriveMetrics>> {
   public Map<String, ? extends DriveMetricsapply(Map<StringStringfrom) {
      Builder<StringDriveMetricsbuilder = ImmutableMap.<StringDriveMetricsbuilder();
      addIDEDevices(frombuilder);
      addSCSIDevices(frombuilder);
      addBlockDevices(frombuilder);
      return builder.build();
   }
   protected void addBlockDevices(Map<StringStringfromBuilder<StringDriveMetricsdevices) {
      BLOCK: for (int index : new int[] { 0, 1, 2, 3, 4, 5, 6, 7 }) {
         String key = String.format("block:0:%d"index);
         if (!from.containsKey(key))
            break BLOCK;
         devices.put(keybuildMetrics(keyfrom));
      }
   }
   protected void addSCSIDevices(Map<StringStringfromBuilder<StringDriveMetricsdevices) {
      SCSI: for (int unit : new int[] { 0, 1, 2, 3, 4, 5, 6, 7 }) {
         String key = String.format("scsi:0:%d"unit);
         if (!from.containsKey(key))
            break SCSI;
         devices.put(keybuildMetrics(keyfrom));
      }
   }
   protected void addIDEDevices(Map<StringStringfromBuilder<StringDriveMetricsdevices) {
      IDE: for (int bus : new int[] { 0, 1 })
         for (int unit : new int[] { 0, 1 }) {
            String key = String.format("ide:%d:%d"busunit);
            if (!from.containsKey(key))
               break IDE;
            devices.put(keybuildMetrics(keyfrom));
         }
   }
   protected DriveMetrics buildMetrics(String keyMap<StringStringfrom) {
      DriveMetrics.Builder builder = new DriveMetrics.Builder();
      if (from.containsKey(key + ":read:bytes"))
         builder.readBytes(new Long(from.get(key + ":read:bytes")));
      if (from.containsKey(key + ":read:requests"))
         builder.readRequests(new Long(from.get(key + ":read:requests")));
      if (from.containsKey(key + ":write:bytes"))
         builder.writeBytes(new Long(from.get(key + ":write:bytes")));
      if (from.containsKey(key + ":write:requests"))
         builder.writeRequests(new Long(from.get(key + ":write:requests")));
      return builder.build();
   }
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