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Fix MetricPredicate and add MetricExistsPredicate
Signed-off-by: Claudio Mezzasalma <claudio.mezzasalma@eurotech.com>
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38 changes: 38 additions & 0 deletions
38
.../src/main/java/org/eclipse/kapua/service/datastore/model/query/MetricExistsPredicate.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2011, 2020 Eurotech and/or its affiliates and others | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Eurotech - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.kapua.service.datastore.model.query; | ||
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| /** | ||
| * Query predicate for matching messages with existing metrics | ||
| * | ||
| * @since 1.2.0 | ||
| */ | ||
| public interface MetricExistsPredicate extends ExistsPredicate { | ||
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| /** | ||
| * Gets the metric type to search. | ||
| * This is required because metric with the same name can have different types. | ||
| * | ||
| * @return The metric type | ||
| * @since 1.2.0 | ||
| */ | ||
| Class<?> getType(); | ||
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| /** | ||
| * Sets the metric type so search. | ||
| * | ||
| * @param type The metric type to search. | ||
| * @since 1.2.0 | ||
| */ | ||
| void setType(Class<?> type); | ||
|
|
||
| } |
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71 changes: 71 additions & 0 deletions
71
...a/org/eclipse/kapua/service/datastore/internal/model/query/MetricExistsPredicateImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2011, 2020 Eurotech and/or its affiliates and others | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Eurotech - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.kapua.service.datastore.internal.model.query; | ||
|
|
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| import org.eclipse.kapua.service.datastore.client.DatamodelMappingException; | ||
| import org.eclipse.kapua.service.datastore.internal.mediator.DatastoreUtils; | ||
| import org.eclipse.kapua.service.datastore.internal.schema.KeyValueEntry; | ||
| import org.eclipse.kapua.service.datastore.internal.schema.SchemaUtil; | ||
| import org.eclipse.kapua.service.datastore.model.query.MetricExistsPredicate; | ||
|
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| import com.fasterxml.jackson.databind.node.ObjectNode; | ||
|
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| /** | ||
| * Implementation of query predicate for checking if a field exists | ||
| * | ||
| * @since 1.2.0 | ||
| * | ||
| */ | ||
| public class MetricExistsPredicateImpl extends ExistsPredicateImpl implements MetricExistsPredicate { | ||
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| private Class<?> type; | ||
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| public <V extends Comparable<V>> MetricExistsPredicateImpl(String fieldName, Class<V> type) { | ||
| super(fieldName); | ||
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| this.type = type; | ||
| } | ||
|
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| @Override | ||
| public Class<?> getType() { | ||
| return type; | ||
| } | ||
|
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| @Override | ||
| public void setType(Class<?> type) { | ||
| this.type = type; | ||
| } | ||
|
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| @Override | ||
| public String getName() { | ||
| return name; | ||
| } | ||
|
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| @Override | ||
| /** | ||
| * <pre> | ||
| * { | ||
| * "query": { | ||
| * "exists" : { "field" : "metrics.metric.typ" } | ||
| * } | ||
| * } | ||
| * </pre> | ||
| */ | ||
| public ObjectNode toSerializedMap() throws DatamodelMappingException { | ||
| ObjectNode rootNode = SchemaUtil.getObjectNode(); | ||
| String fieldName = type == null ? String.format("metrics.%s", name) : String.format("metrics.%s.%s", name, DatastoreUtils.getClientMetricFromAcronym(type.getSimpleName().toLowerCase())); | ||
| ObjectNode termNode = SchemaUtil.getField(new KeyValueEntry[] { new KeyValueEntry(PredicateConstants.FIELD_KEY, fieldName) }); | ||
| rootNode.set(PredicateConstants.EXISTS_KEY, termNode); | ||
| return rootNode; | ||
| } | ||
|
|
||
| } |
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