com.metamx.emitter.service.AlertEvent.java Source code

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Here is the source code for com.metamx.emitter.service.AlertEvent.java

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/*
 * Copyright 2012 Metamarkets Group Inc.
 *
 * 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.metamx.emitter.service;

import com.fasterxml.jackson.annotation.JsonValue;
import com.google.common.collect.ImmutableMap;
import org.joda.time.DateTime;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
 */
public class AlertEvent implements ServiceEvent {
    private final String service;
    private final String host;
    private final Severity severity;
    private final String description;
    private final DateTime createdTime;

    private final Map<String, Object> dataMap;

    public AlertEvent(DateTime createdTime, String service, String host, Severity severity, String description,
            Map<String, Object> dataMap) {
        this.createdTime = createdTime;
        this.service = service;
        this.host = host;
        this.severity = severity;
        this.description = description;
        this.dataMap = dataMap;
    }

    public AlertEvent(String service, String host, Severity severity, String description,
            Map<String, Object> dataMap) {
        this(new DateTime(), service, host, severity, description, dataMap);
    }

    public AlertEvent(String service, String host, String description, Map<String, Object> dataMap) {
        this(new DateTime(), service, host, Severity.DEFAULT, description, dataMap);
    }

    public AlertEvent(String service, String host, String description) {
        this(new DateTime(), service, host, Severity.DEFAULT, description, ImmutableMap.<String, Object>of());
    }

    public DateTime getCreatedTime() {
        return createdTime;
    }

    public String getFeed() {
        return "alerts";
    }

    public String getService() {
        return service;
    }

    public String getHost() {
        return host;
    }

    public Severity getSeverity() {
        return severity;
    }

    public String getDescription() {
        return description;
    }

    public Map<String, Object> getDataMap() {
        return Collections.unmodifiableMap(dataMap);
    }

    public boolean isSafeToBuffer() {
        return false;
    }

    @Override
    @JsonValue
    public Map<String, Object> toMap() {
        return ImmutableMap.<String, Object>builder().put("feed", getFeed())
                .put("timestamp", createdTime.toString()).put("service", service).put("host", host)
                .put("severity", severity.toString()).put("description", description).put("data", dataMap).build();
    }

    public static enum Severity {
        ANOMALY {
            @Override
            public String toString() {
                return "anomaly";
            }
        },

        COMPONENT_FAILURE {
            @Override
            public String toString() {
                return "component-failure";
            }
        },

        SERVICE_FAILURE {
            @Override
            public String toString() {
                return "service-failure";
            }
        };

        public static final Severity DEFAULT = COMPONENT_FAILURE;
    }

    @Deprecated // Use AlertBuilder
    public static class Builder {
        private final Map<String, Object> dataMap = new HashMap<String, Object>();

        public Builder addData(String identifier, String value) {
            dataMap.put(identifier, value);
            return this;
        }

        @Deprecated
        public ServiceEventBuilder<AlertEvent> build(final String description) {
            return build(Severity.DEFAULT, description, dataMap);
        }

        @Deprecated
        public ServiceEventBuilder<AlertEvent> build(final String description, final Map<String, Object> dataMap) {
            return build(Severity.DEFAULT, description, dataMap);
        }

        @Deprecated
        public ServiceEventBuilder<AlertEvent> build(final Severity severity, final String description) {
            return build(severity, description, dataMap);
        }

        @Deprecated
        public ServiceEventBuilder<AlertEvent> build(final Severity severity, final String description,
                final Map<String, Object> dataMap) {
            return new ServiceEventBuilder<AlertEvent>() {
                @Override
                public AlertEvent build(String service, String host) {
                    return new AlertEvent(service, host, severity, description, dataMap);
                }
            };
        }
    }
}