monasca.api.resource.serialization.SubAlarmExpressionSerializer.java Source code

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Here is the source code for monasca.api.resource.serialization.SubAlarmExpressionSerializer.java

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/*
 * 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.api.resource.serialization;

import java.io.IOException;
import java.util.Collections;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import monasca.common.model.alarm.AlarmSubExpression;

public class SubAlarmExpressionSerializer extends JsonSerializer<AlarmSubExpression> {
    @Override
    public void serialize(AlarmSubExpression value, JsonGenerator jgen, SerializerProvider provider)
            throws IOException, JsonProcessingException {
        jgen.writeStartObject();
        jgen.writeStringField("function", value.getFunction().name());
        jgen.writeStringField("metric_name", value.getMetricDefinition().name);
        jgen.writeObjectField("dimensions", value.getMetricDefinition().dimensions == null ? Collections.emptyMap()
                : value.getMetricDefinition().dimensions);
        jgen.writeStringField("operator", value.getOperator().name());
        jgen.writeNumberField("threshold", value.getThreshold());
        jgen.writeNumberField("period", value.getPeriod());
        jgen.writeNumberField("periods", value.getPeriods());
        jgen.writeEndObject();
    }

    @Override
    public Class<AlarmSubExpression> handledType() {
        return AlarmSubExpression.class;
    }
}