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/*
 * Copyright 2016 Google LLC
 *
 * 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 com.google.cloud;

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

import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableMap;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

/**
 * Objects of this class represent a resource that can be used for monitoring, logging, billing, or
 * other purposes. Examples include virtual machine instances, databases, and storage devices such
 * as disks. The type field identifies a {@link MonitoredResourceDescriptor} object that describes
 * the resource's schema. Information in the labels field identifies the actual resource and its
 * attributes according to the schema.
 *
 * 

For example, the monitored resource for Google Compute Engine VM instances has {@code * gce_instance} type and specifies values for the labels {@code instance_id} and {@code zone} to * identify particular VM instances. */ public final class MonitoredResource implements Serializable { private static final long serialVersionUID = -4393604148752640581L; private final String type; private final Map labels; /** A builder for {@code MonitoredResource} objects. */ public static class Builder { private String type; private Map labels = new HashMap<>(); Builder(String type) { this.type = type; } Builder(MonitoredResource monitoredResource) { this.type = monitoredResource.type; this.labels = new HashMap<>(monitoredResource.labels); } /** * Sets the monitored resource type. This value must match the one of {@link * MonitoredResourceDescriptor#getType()} of a {@code MonitoredResourceDescriptor} object. For * example, the type {@code cloudsql_database} represent databases in Google Cloud SQL. */ public Builder setType(String type) { this.type = type; return this; } /** * Sets the values for all the labels required by the corresponding monitored resource * descriptor (see {@link MonitoredResourceDescriptor#getLabels()}. For example, Google Compute * Engine VM instances use the labels {@code instance_id} and {@code zone}. */ public Builder setLabels(Map labels) { this.labels = new HashMap<>(checkNotNull(labels)); return this; } /** Adds a label to the labels of the monitored resource. */ public Builder addLabel(String key, String value) { this.labels.put(key, value); return this; } /** Clears all the labels of the monitored resource. */ public Builder clearLabels() { this.labels.clear(); return this; } public MonitoredResource build() { return new MonitoredResource(this); } } MonitoredResource(Builder builder) { this.type = checkNotNull(builder.type); this.labels = ImmutableMap.copyOf(builder.labels); } /** * Returns the monitored resource type. This value must match the one of {@link * MonitoredResourceDescriptor#getType()} of a {@code MonitoredResourceDescriptor} object. For * example, the type {@code cloudsql_database} represent databases in Google Cloud SQL. */ public String getType() { return type; } /** * Returns the values for all the labels required by the corresponding monitored resource * descriptor (see {@link MonitoredResourceDescriptor#getLabels()}. For example, Google Compute * Engine VM instances use the labels {@code instance_id} and {@code zone}. */ public Map getLabels() { return labels; } @Override public int hashCode() { return Objects.hash(type, labels); } @Override public boolean equals(Object obj) { if (obj == this) { return true; } if (!(obj instanceof MonitoredResource)) { return false; } MonitoredResource other = (MonitoredResource) obj; return Objects.equals(type, other.type) && Objects.equals(labels, other.labels); } @Override public String toString() { return MoreObjects.toStringHelper(this).add("type", type).add("labels", labels).toString(); } public com.google.api.MonitoredResource toPb() { return com.google.api.MonitoredResource.newBuilder().setType(type).putAllLabels(labels).build(); } /** Returns a builder for this {@code MonitoredResource} object. */ public Builder toBuilder() { return new Builder(this); } /** Returns a builder for {@code MonitoredResource} objects given the resource's type. */ public static Builder newBuilder(String type) { return new Builder(type); } /** Creates a {@code MonitoredResource} object given the resource's type and labels. */ public static MonitoredResource of(String type, Map labels) { return newBuilder(type).setLabels(labels).build(); } public static MonitoredResource fromPb(com.google.api.MonitoredResource descriptorPb) { return new Builder(descriptorPb.getType()).setLabels(descriptorPb.getLabelsMap()).build(); } }





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