Java tutorial
/* * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. * * Licensed 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 monasca.common.model.metric; import java.io.Serializable; import com.fasterxml.jackson.annotation.JsonProperty; import com.google.common.base.Preconditions; import javax.annotation.Nullable; import javax.validation.constraints.NotNull; import java.util.Arrays; import java.util.Map; /** * Metric with definition information flattened alongside value information. */ public class Metric implements Serializable { private static final long serialVersionUID = 3455749495426525634L; public String name; public Map<String, String> dimensions; public long timestamp; public double value; public double[][] timeValues = null; private MetricDefinition definition; public Metric() { } public Metric(@NotNull MetricDefinition definition, long timestamp, double value) { this.definition = Preconditions.checkNotNull(definition, "definition"); this.name = definition.name; setDimensions(definition.dimensions); this.timestamp = timestamp; this.value = Preconditions.checkNotNull(value, "value"); } public Metric(String name, @Nullable Map<String, String> dimensions, long timestamp, double value) { this.name = Preconditions.checkNotNull(name, "name"); setDimensions(dimensions); this.timestamp = timestamp; this.value = value; } public Metric(String name, @Nullable Map<String, String> dimensions, long timestamp, double[][] timeValues) { this.name = Preconditions.checkNotNull(name, "name"); setDimensions(dimensions); this.timestamp = Preconditions.checkNotNull(timestamp, "timestamp"); this.timeValues = Preconditions.checkNotNull(timeValues, "timeValues"); } /** * Returns the MetricDefinition. */ public MetricDefinition definition() { if (definition == null) definition = new MetricDefinition(name, dimensions); return definition; } @Override public String toString() { return "Metric{" + "name='" + name + '\'' + ", dimensions=" + dimensions + ", timeStamp='" + timestamp + '\'' + ", value=" + value + ", timeValues=" + Arrays.toString(timeValues) + '}'; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (!(obj instanceof Metric)) return false; Metric other = (Metric) obj; if (definition == null) { if (other.definition != null) return false; } else if (!definition.equals(other.definition)) return false; if (dimensions == null) { if (other.dimensions != null) return false; } else if (!dimensions.equals(other.dimensions)) return false; if (name == null) { if (other.name != null) return false; } else if (!name.equals(other.name)) return false; if (!Arrays.deepEquals(timeValues, other.timeValues)) return false; if (timestamp != other.timestamp) return false; if (Double.doubleToLongBits(value) != Double.doubleToLongBits(other.value)) return false; return true; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((definition == null) ? 0 : definition.hashCode()); result = prime * result + ((dimensions == null) ? 0 : dimensions.hashCode()); result = prime * result + ((name == null) ? 0 : name.hashCode()); result = prime * result + Arrays.hashCode(timeValues); result = prime * result + (int) (timestamp ^ (timestamp >>> 32)); long temp; temp = Double.doubleToLongBits(value); result = prime * result + (int) (temp ^ (temp >>> 32)); return result; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Map<String, String> getDimensions() { return dimensions; } public void setDimensions(Map<String, String> dimensions) { this.dimensions = dimensions; } public long getTimestamp() { return timestamp; } public void setTimestamp(long timestamp) { this.timestamp = timestamp; } public double getValue() { return value; } public void setValue(double value) { this.value = value; } @JsonProperty("time_values") public double[][] getTimeValues() { return timeValues; } @JsonProperty("time_values") public void setTimeValues(double[][] timeValues) { this.timeValues = timeValues; } }