RestJsonConverter.java
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/**
* Copyright © 2016-2020 The Thingsboard Authors
*
* 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 org.thingsboard.client.utils;
import com.fasterxml.jackson.databind.JsonNode;
import org.springframework.util.CollectionUtils;
import org.thingsboard.server.common.data.kv.AttributeKvEntry;
import org.thingsboard.server.common.data.kv.BaseAttributeKvEntry;
import org.thingsboard.server.common.data.kv.BasicTsKvEntry;
import org.thingsboard.server.common.data.kv.BooleanDataEntry;
import org.thingsboard.server.common.data.kv.DoubleDataEntry;
import org.thingsboard.server.common.data.kv.KvEntry;
import org.thingsboard.server.common.data.kv.LongDataEntry;
import org.thingsboard.server.common.data.kv.StringDataEntry;
import org.thingsboard.server.common.data.kv.TsKvEntry;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
public class RestJsonConverter {
private static final String KEY = "key";
private static final String VALUE = "value";
private static final String LAST_UPDATE_TS = "lastUpdateTs";
private static final String TS = "ts";
private static final String CAN_T_PARSE_VALUE = "Can't parse value: ";
public static List<AttributeKvEntry> toAttributes(List<JsonNode> attributes) {
if (!CollectionUtils.isEmpty(attributes)) {
return attributes.stream().map(attr -> {
KvEntry entry = parseValue(attr.get(KEY).asText(), attr.get(VALUE));
return new BaseAttributeKvEntry(entry, attr.get(LAST_UPDATE_TS).asLong());
}
).collect(Collectors.toList());
} else {
return Collections.emptyList();
}
}
public static List<TsKvEntry> toTimeseries(Map<String, List<JsonNode>> timeseries) {
if (!CollectionUtils.isEmpty(timeseries)) {
List<TsKvEntry> result = new ArrayList<>();
timeseries.forEach((key, values) ->
result.addAll(values.stream().map(ts -> {
KvEntry entry = parseValue(key, ts.get(VALUE));
return new BasicTsKvEntry(ts.get(TS).asLong(), entry);
}
).collect(Collectors.toList()))
);
return result;
} else {
return Collections.emptyList();
}
}
private static KvEntry parseValue(String key, JsonNode value) {
if (!value.isObject()) {
if (value.isBoolean()) {
return new BooleanDataEntry(key, value.asBoolean());
} else if (value.isDouble()) {
return new DoubleDataEntry(key, value.asDouble());
} else if (value.isLong()) {
return new LongDataEntry(key, value.asLong());
} else {
return new StringDataEntry(key, value.asText());
}
} else {
throw new RuntimeException(CAN_T_PARSE_VALUE + value);
}
}
}