org.jclouds.cloudwatch.binders.MetricDataBinder.java Source code

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Here is the source code for org.jclouds.cloudwatch.binders.MetricDataBinder.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.cloudwatch.binders;

import static com.google.common.base.Preconditions.checkNotNull;

import org.jclouds.cloudwatch.domain.Dimension;
import org.jclouds.cloudwatch.domain.MetricDatum;
import org.jclouds.cloudwatch.domain.StatisticValues;
import org.jclouds.date.DateService;
import org.jclouds.http.HttpRequest;

import com.google.common.annotations.Beta;
import com.google.common.collect.ImmutableMultimap;
import com.google.inject.Inject;

/**
 * Binds the metrics request to the http request
 *
 * @see <a href="http://docs.amazonwebservices.com/AmazonCloudWatch/latest/APIReference/API_PutMetricData.html" />
 *
 * @author Jeremy Whitlock
 */
@Beta
public class MetricDataBinder implements org.jclouds.rest.Binder {

    private final DateService dateService;

    @Inject
    protected MetricDataBinder(DateService dateService) {
        this.dateService = dateService;
    }

    /**
     * {@inheritDoc}
     */
    @SuppressWarnings("unchecked")
    @Override
    public <R extends HttpRequest> R bindToRequest(R request, Object input) {
        Iterable<MetricDatum> metrics = (Iterable<MetricDatum>) checkNotNull(input, "metrics must be set!");

        ImmutableMultimap.Builder<String, String> formParameters = ImmutableMultimap.builder();
        int metricDatumIndex = 1;

        for (MetricDatum metricDatum : metrics) {
            int dimensionIndex = 1;

            for (Dimension dimension : metricDatum.getDimensions()) {
                formParameters.put(
                        "MetricData.member." + metricDatumIndex + ".Dimensions.member." + dimensionIndex + ".Name",
                        dimension.getName());
                formParameters.put(
                        "MetricData.member." + metricDatumIndex + ".Dimensions.member." + dimensionIndex + ".Value",
                        dimension.getValue());
                dimensionIndex++;
            }

            formParameters.put("MetricData.member." + metricDatumIndex + ".MetricName",
                    metricDatum.getMetricName());

            if (metricDatum.getStatisticValues().isPresent()) {
                StatisticValues statisticValues = metricDatum.getStatisticValues().get();

                formParameters.put("MetricData.member." + metricDatumIndex + ".StatisticValues.Maximum",
                        String.valueOf(statisticValues.getMaximum()));
                formParameters.put("MetricData.member." + metricDatumIndex + ".StatisticValues.Minimum",
                        String.valueOf(statisticValues.getMinimum()));
                formParameters.put("MetricData.member." + metricDatumIndex + ".StatisticValues.SampleCount",
                        String.valueOf(statisticValues.getSampleCount()));
                formParameters.put("MetricData.member." + metricDatumIndex + ".StatisticValues.Sum",
                        String.valueOf(statisticValues.getSum()));
            }

            if (metricDatum.getTimestamp().isPresent()) {
                formParameters.put("MetricData.member." + metricDatumIndex + ".Timestamp",
                        dateService.iso8601SecondsDateFormat(metricDatum.getTimestamp().get()));
            }

            formParameters.put("MetricData.member." + metricDatumIndex + ".Unit",
                    String.valueOf(metricDatum.getUnit()));

            if (metricDatum.getValue().isPresent()) {
                formParameters.put("MetricData.member." + metricDatumIndex + ".Value",
                        String.valueOf(metricDatum.getValue().get()));
            }

            metricDatumIndex++;
        }

        return (R) request.toBuilder().replaceFormParams(formParameters.build()).build();
    }

}