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com.exactpro.sf.services.fast.converter.IMessageToFastConverter Maven / Gradle / Ivy
/******************************************************************************
* Copyright 2009-2018 Exactpro (Exactpro Systems Limited)
*
* 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.exactpro.sf.services.fast.converter;
import static com.exactpro.sf.common.messages.structures.StructureUtils.getAttributeValue;
import static com.exactpro.sf.services.fast.converter.FastToIMessageConverter.getFieldTimeUnit;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import com.exactpro.sf.util.DateTimeUtility;
import com.google.common.base.Enums;
import org.jetbrains.annotations.NotNull;
import org.openfast.GroupValue;
import org.openfast.Message;
import org.openfast.SequenceValue;
import org.openfast.template.Group;
import org.openfast.template.MessageTemplate;
import org.openfast.template.Sequence;
import org.openfast.template.TemplateRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.exactpro.sf.common.messages.IMessage;
import com.exactpro.sf.common.messages.structures.IDictionaryStructure;
import com.exactpro.sf.common.messages.structures.IFieldStructure;
import com.exactpro.sf.common.messages.structures.IMessageStructure;
import com.exactpro.sf.common.util.EPSCommonException;
public class IMessageToFastConverter {
private static final Logger logger = LoggerFactory.getLogger(IMessageToFastConverter.class);
private final IDictionaryStructure dictionary;
private final TemplateRegistry templateRegistry;
private final HashMap > msgFielsMap = new HashMap>();
public IMessageToFastConverter(IDictionaryStructure dictionary, TemplateRegistry registry) {
this.dictionary = dictionary;
this.templateRegistry = registry;
hashMessageFields();
}
private void hashMessageFields() {
for(IMessageStructure msgStructure : dictionary.getMessages().values()) {
msgFielsMap.put(msgStructure, msgStructure.getFields());
}
}
public Message convert(IMessage iMsg) throws ConverterException {
IMessageStructure structure = dictionary.getMessages().get(iMsg.getName());
if (structure == null) {
throw new EPSCommonException("Can not find message " + iMsg.getName() +
" in the namespace " + iMsg.getNamespace());
}
String templateId = getAttributeValue(structure, "templateId");
MessageTemplate template = templateRegistry.get(Integer.valueOf(templateId));
Message fastMsg = new Message(template);
convertFields(fastMsg, iMsg);
return fastMsg;
}
private void convertFields(GroupValue fastMsg, IMessage message)
throws ConverterException {
IMessageStructure structure = dictionary.getMessages().get(message.getName());
if (structure == null) {
logger.error("Can get description from dictionary for {}:{}", message.getName(), message.getNamespace());
throw new ConverterException("Can get description from dictionary for " +
message.getName() + ":" + message.getNamespace());
}
Group template = fastMsg.getGroup();
for (String fieldName : message.getFieldNames()) {
convertField(template, fastMsg, message, fieldName, structure);
}
}
private void convertField(Group template, GroupValue fastMsg, IMessage message,
String fieldName, IMessageStructure structure) throws ConverterException {
IFieldStructure messageFieldDescr = msgFielsMap.get(structure).get(fieldName);
String fastFieldName = getAttributeValue(messageFieldDescr, "fastName");
if (fastFieldName == null) {
Boolean isLength = getAttributeValue(messageFieldDescr, "isLength");
if (isLength != null && isLength) {
return;
}
throw new ConverterException("Failed to get fast field " +
"name for field :" + fieldName + " message=" + message);
}
Object value = message.getField(fieldName);
setFastField(template, fastMsg, fastFieldName, value, message, fieldName);
}
private void setFastField(Group template, GroupValue fastMsg, String fastFieldName,
Object value, IMessage message, String fieldName)
throws ConverterException {
if (value instanceof Byte) {
byte[] byteValue = { (Byte)value };
fastMsg.setByteVector(fastFieldName, byteValue);
} else if (value instanceof Integer) {
Integer intValue = (Integer) value;
fastMsg.setInteger(fastFieldName, intValue);
} else if (value instanceof Long) {
Long longValue = (Long) value;
fastMsg.setLong(fastFieldName, longValue);
} else if (value instanceof BigDecimal) {
BigDecimal bdValue = (BigDecimal) value;
fastMsg.setDecimal(fastFieldName, bdValue);
} else if (value instanceof String) {
String strValue = (String) value;
fastMsg.setString(fastFieldName, strValue);
} else if (value instanceof LocalDateTime) {
LocalDateTime localDateTimeValue = (LocalDateTime) value;
String unitAttrValue = getFieldTimeUnit(dictionary, message.getName(),fieldName);
//FAST 1.2. A unit may not exist, then the millisecond is used as the default unit.
FastToIMessageConverter.TIMESTAMP_UNIT timeUnit = unitAttrValue != null ? Enums.getIfPresent(FastToIMessageConverter.TIMESTAMP_UNIT.class, unitAttrValue)
.or(FastToIMessageConverter.TIMESTAMP_UNIT.millisecond) : FastToIMessageConverter.TIMESTAMP_UNIT.millisecond;
if (timeUnit == null) {
throw new EPSCommonException("Incorrect time unit = " + unitAttrValue + " for " + fieldName + " field");
}
BigDecimal bdValue = BigDecimal.valueOf(dateTimeToTimestamp(localDateTimeValue, timeUnit));
fastMsg.setDecimal(fastFieldName, bdValue);
} else if (value instanceof Boolean) {
Boolean boolValue = (Boolean) value;
long longValue = boolValue ? 1 : 0;
fastMsg.setLong(fastFieldName, longValue);
} else if (value instanceof Collection) {
Collection colValue = (Collection) value;
Sequence sequence = template.getSequence(fastFieldName);
SequenceValue sqsValue = new SequenceValue(sequence);
convertCollection(sqsValue, colValue);
fastMsg.setFieldValue(sequence, sqsValue);
} else if (value instanceof IMessage) {
IMessage msgValue = (IMessage) value;
Group group = template;
Group innerGrp = group.getGroup(fastFieldName);
GroupValue groupVal = new GroupValue(innerGrp);
convertFields(groupVal, msgValue);
fastMsg.setFieldValue(innerGrp, groupVal);
} else if (value instanceof byte[]) {
byte[] byteVal = (byte[]) value;
fastMsg.setByteVector(fastFieldName, byteVal);
} else {
throw new ConverterException("Can not convert value of unknown type");
}
}
private void convertCollection(SequenceValue sqs, Collection colValue) throws ConverterException {
Sequence sequence = sqs.getSequence();
Group grp = sequence.getGroup();
for (Object o: colValue) {
IMessage innerMsg = (IMessage) o;
GroupValue grpValue = new GroupValue(grp);
convertFields(grpValue, innerMsg);
try {
sqs.add(grpValue);
} catch (Exception e) {
logger.warn("Failed to add group value to collection", e);
}
}
}
private long dateTimeToTimestamp(LocalDateTime dateTime, @NotNull FastToIMessageConverter.TIMESTAMP_UNIT unit) {
switch (unit) {
case day:
return TimeUnit.MILLISECONDS.toDays(DateTimeUtility.getMillisecond(dateTime));
case second:
return TimeUnit.MILLISECONDS.toSeconds(DateTimeUtility.getMillisecond(dateTime));
case millisecond:
return DateTimeUtility.getMillisecond(dateTime);
case microsecond:
return TimeUnit.SECONDS.toMicros(DateTimeUtility.getSecond(dateTime)) + TimeUnit.NANOSECONDS.toMicros(dateTime.getNano());
case nanosecond:
return TimeUnit.SECONDS.toNanos(DateTimeUtility.getSecond(dateTime)) + dateTime.getNano();
}
return DateTimeUtility.getMillisecond(dateTime);
}
}
