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This commit is contained in:
Fabian Märki
2016-06-07 16:35:54 +02:00
parent 907637ad32
commit c62b44be0e
16 changed files with 602 additions and 309 deletions
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26
Readme.md
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@ -126,8 +126,7 @@ The following attributes can be specified:
- **binSize**: Activates data binning. Specifies the number of pulses per bin for pulse-range queries or the number of milliseconds per bin for time-range queries (using number of pulses and number of milliseconds makes this binning strategy consistent between channel with different update frequencies).
- **aggregations**: Activates data aggregation. Array of requested aggregations (see [here](https://github.psi.ch/sf_daq/ch.psi.daq.domain/blob/master/src/main/java/ch/psi/daq/domain/query/operation/Aggregation.java) for possible values). These values will be added to the *data* array response.
- **aggregationType**: Specifies the type of aggregation (see [here](https://github.psi.ch/sf_daq/ch.psi.daq.domain/blob/master/src/main/java/ch/psi/daq/domain/query/operation/AggregationType.java)). The default type is *value* aggregation (e.g., sum([1,2,3])=6). Alternatively, it is possible to define *index* aggregation for multiple arrays in combination with binning (e.g., sum([1,2,3], [3,2,1]) = [4,4,4]).
- **responseFormat**: Specifies the format the response of the requested data (see [here](https://github.psi.ch/sf_daq/ch.psi.daq.domain/blob/master/src/main/java/ch/psi/daq/domain/query/operation/ResponseFormat.java) for possible values).
- **compression**: Defines how the response should be compressed (see [here](https://github.psi.ch/sf_daq/ch.psi.daq.domain/blob/master/src/main/java/ch/psi/daq/domain/query/operation/Compression.java) for possible values).
- **response**: Specifies the format of the response of the requested data (see [here](Readme.md#response_format)). If this value is not set it defaults to JSON.
<a name="define_channel_names"/>
@ -204,16 +203,21 @@ Queries are applied to a range. The following types of ranges are supported.
- **endSeconds**: The end time of the range in seconds.
<a name="response_format"/>
### Response Format
The format of the response can be defined through the field `responseFormat` (values: **json**|csv). Please note that CSV does not support `index` and `extrema` aggregations.
It is possible to specify the response format the queried data should have.
```json
"response":{
"format":"json",
"compression":"none"
}
```
### Response Compression
Responses can be compressed when transferred from the server by setting the field `compression` (values: **none**|gzip|deflate).
If compression is enabled, you have to tell `curl` that the data is compressed by defining the attribute `--compressed` so that it decompresses the data automatically.
- **format**: The format of the response (values: **json**|csv). Please note that `csv` does not support `index` and `extrema` aggregations.
- **compression**: Responses can be compressed when transferred from the server (values: **none**|gzip). If compression is enabled, you have to tell `curl` that the data is compressed by defining the attribute `--compressed` so that it decompresses the data automatically.
### Example Queries
@ -478,7 +482,9 @@ curl -H "Content-Type: application/json" -X POST -d '{"fields":["pulseId","valu
```json
{
"responseFormat":"csv",
"response":{
"format":"csv"
},
"range":{
"startPulseId":0,
"endPulseId":4
@ -504,7 +510,7 @@ It is possible to request the time in seconds (since January 1, 1970 (the UNIX e
##### Command
```bash
curl -H "Content-Type: application/json" -X POST -d '{"responseFormat":"csv","range":{"startPulseId":0,"endPulseId":4},"channels":["channel1","channel2"],"fields":["channel","pulseId","iocSeconds","globalSeconds","shape","eventCount","value"]}' http://data-api.psi.ch/sf/query
curl -H "Content-Type: application/json" -X POST -d '{"response":{"format":"csv"},"range":{"startPulseId":0,"endPulseId":4},"channels":["channel1","channel2"],"fields":["channel","pulseId","iocSeconds","globalSeconds","shape","eventCount","value"]}' http://data-api.psi.ch/sf/query
```
##### Response

19
src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java
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@ -23,23 +23,27 @@ import org.springframework.util.StringUtils;
import org.springframework.validation.Validator;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
import ch.psi.daq.common.statistic.StorelessStatistics;
import ch.psi.daq.domain.DataEvent;
import ch.psi.daq.domain.query.operation.Aggregation;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.Response;
import ch.psi.daq.query.analyzer.QueryAnalyzer;
import ch.psi.daq.query.analyzer.QueryAnalyzerImpl;
import ch.psi.daq.query.config.QueryConfig;
import ch.psi.daq.query.model.Query;
import ch.psi.daq.queryrest.controller.validator.QueryValidator;
import ch.psi.daq.queryrest.model.PropertyFilterMixin;
import ch.psi.daq.queryrest.query.QueryManager;
import ch.psi.daq.queryrest.query.QueryManagerImpl;
import ch.psi.daq.queryrest.response.PolymorphicResponseMixIn;
import ch.psi.daq.queryrest.response.csv.CSVResponseStreamWriter;
import ch.psi.daq.queryrest.response.json.JSONResponseStreamWriter;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
@Configuration
@Import(value=QueryRestConfigCORS.class)
@PropertySource(value = {"classpath:queryrest.properties"})
@ -83,6 +87,8 @@ public class QueryRestConfig extends WebMvcConfigurerAdapter {
objectMapper.addMixIn(DataEvent.class, PropertyFilterMixin.class);
objectMapper.addMixIn(StorelessStatistics.class, PropertyFilterMixin.class);
objectMapper.addMixIn(EnumMap.class, PropertyFilterMixin.class);
objectMapper.addMixIn(Response.class, PolymorphicResponseMixIn.class);
}
@ -120,6 +126,11 @@ public class QueryRestConfig extends WebMvcConfigurerAdapter {
public CSVResponseStreamWriter csvResponseStreamWriter() {
return new CSVResponseStreamWriter();
}
@Bean
public QueryManager queryManager(){
return new QueryManagerImpl();
}
@Bean(name = BEAN_NAME_DEFAULT_RESPONSE_FIELDS)
public Set<QueryField> defaultResponseFields() {

194
src/main/java/ch/psi/daq/queryrest/controller/QueryRestController.java
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@ -1,25 +1,13 @@
package ch.psi.daq.queryrest.controller;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.tuple.Pair;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
@ -35,13 +23,12 @@ import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import ch.psi.daq.cassandra.config.CassandraConfig;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Lists;
import ch.psi.daq.common.json.deserialize.AttributeBasedDeserializer;
import ch.psi.daq.common.ordering.Ordering;
import ch.psi.daq.domain.DataEvent;
import ch.psi.daq.domain.FieldNames;
import ch.psi.daq.domain.config.DomainConfig;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.DAQQuery;
import ch.psi.daq.domain.query.DAQQueryElement;
@ -50,21 +37,15 @@ import ch.psi.daq.domain.query.channels.ChannelsResponse;
import ch.psi.daq.domain.query.operation.Aggregation;
import ch.psi.daq.domain.query.operation.AggregationType;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.Response;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.domain.reader.Backend;
import ch.psi.daq.domain.request.validate.RequestProviderValidator;
import ch.psi.daq.query.analyzer.QueryAnalyzer;
import ch.psi.daq.query.config.QueryConfig;
import ch.psi.daq.query.model.Query;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.query.processor.ChannelNameCache;
import ch.psi.daq.query.processor.QueryProcessor;
import ch.psi.daq.queryrest.query.QueryManager;
import ch.psi.daq.queryrest.response.csv.CSVResponseStreamWriter;
import ch.psi.daq.queryrest.response.json.JSONResponse;
import ch.psi.daq.queryrest.response.json.JSONResponseStreamWriter;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Lists;
@RestController
public class QueryRestController {
@ -74,6 +55,9 @@ public class QueryRestController {
public static final String PATH_QUERY = DomainConfig.PATH_QUERY;
public static final String PATH_QUERIES = DomainConfig.PATH_QUERIES;
@Resource
private ApplicationContext appContext;
@Resource
private Validator queryValidator;
private Validator requestProviderValidator = new RequestProviderValidator();
@ -85,65 +69,12 @@ public class QueryRestController {
private CSVResponseStreamWriter csvResponseStreamWriter;
@Resource
private ApplicationContext appContext;
private QueryManager queryManager;
@Resource
private ObjectMapper objectMapper;
@Resource
private Function<Query, QueryAnalyzer> queryAnalizerFactory;
private Map<Backend, QueryProcessor> queryProcessors = new LinkedHashMap<>();
private ChannelNameCache channelNameCache;
@PostConstruct
public void afterPropertiesSet() {
List<Exception> exceptions = new ArrayList<>();
try {
QueryProcessor queryProcessor =
appContext.getBean(QueryConfig.BEAN_NAME_CASSANDRA_QUERY_PROCESSOR, QueryProcessor.class);
queryProcessors.put(queryProcessor.getBackend(), queryProcessor);
} catch (Exception e) {
exceptions.add(e);
LOGGER.warn("");
LOGGER.warn("##########");
LOGGER.warn("Could not load query processor for cassandra.");
LOGGER.warn("##########");
LOGGER.warn("");
}
try {
QueryProcessor queryProcessor =
appContext.getBean(QueryConfig.BEAN_NAME_ARCHIVER_APPLIANCE_QUERY_PROCESSOR, QueryProcessor.class);
queryProcessors.put(queryProcessor.getBackend(), queryProcessor);
} catch (Exception e) {
exceptions.add(e);
LOGGER.warn("");
LOGGER.warn("##########");
LOGGER.warn("Could not load query processor for archiverappliance.");
LOGGER.warn("##########");
LOGGER.warn("");
}
if (queryProcessors.isEmpty()) {
LOGGER.error("No query processor could be loaded! Exceptions were: ");
for (Exception exception : exceptions) {
LOGGER.error("", exception);
}
throw new RuntimeException("No Backends available!");
}
channelNameCache =
new ChannelNameCache(queryProcessors, appContext.getBean(CassandraConfig.BEAN_NAME_READ_TIMEOUT,
Integer.class).longValue());
}
@PreDestroy
public void destroy() {
channelNameCache.destroy();
}
private Response defaultResponse = new JSONResponse();
@InitBinder
protected void initBinder(WebDataBinder binder) {
@ -161,12 +92,7 @@ public class QueryRestController {
produces = {MediaType.APPLICATION_JSON_VALUE})
public @ResponseBody List<ChannelsResponse> getChannels(@RequestBody(required = false) ChannelsRequest request)
throws Throwable {
// in case not specified use defaults (e.g. GET)
if (request == null) {
request = new ChannelsRequest();
}
return channelNameCache.getChannels(request);
return queryManager.getChannels(request);
}
/**
@ -252,17 +178,7 @@ public class QueryRestController {
try {
LOGGER.debug("Executing queries '{}'", queries);
if (ResponseFormat.JSON.equals(queries.getResponseFormat())) {
// write the response back to the client using java 8 streams
jsonResponseStreamWriter.respond(executeQueries(queries), queries, res);
} else if (ResponseFormat.CSV.equals(queries.getResponseFormat())) {
// it's a CSV request
executeQueriesCsv(queries, res);
} else {
String message = String.format("Unsupported response format '%s'", queries.getResponseFormat().name());
LOGGER.error(message);
throw new RuntimeException(message);
}
queries.getResponseOrDefault(defaultResponse).respond(appContext, queries, res);
} catch (Exception e) {
LOGGER.error("Failed to execute query '{}'.", queries, e);
@ -270,86 +186,6 @@ public class QueryRestController {
}
}
/**
* Returns data in CSV format to the client.
*/
private void executeQueriesCsv(DAQQueries queries, HttpServletResponse res) throws Exception {
for (DAQQueryElement query : queries) {
if (!(query.getAggregationType() == null || AggregationType.value.equals(query.getAggregationType()))) {
// We allow only no aggregation or value aggregation as
// extrema: nested structure and not clear how to map it to one line
// index: value is an array of Statistics whose size is not clear at initialization time
String message = "CSV export does not support '" + query.getAggregationType() + "'";
LOGGER.warn(message);
throw new IllegalArgumentException(message);
}
if (!ArrayUtils.contains(query.getColumns(), FieldNames.FIELD_GLOBAL_TIME)) {
query.addField(QueryField.globalMillis);
}
}
try {
LOGGER.debug("Executing query '{}'", queries);
// write the response back to the client using java 8 streams
csvResponseStreamWriter.respond(executeQueries(queries), queries, res);
} catch (Exception e) {
LOGGER.error("Failed to execute query '{}'.", queries, e);
throw e;
}
}
public List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> executeQueries(DAQQueries queries) {
// set backends if not defined yet
channelNameCache.setBackends(queries);
List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results =
new ArrayList<>(queries.getQueries().size());
for (DAQQueryElement queryElement : queries) {
Stream<Triple<BackendQuery, ChannelName, ?>> resultStreams =
BackendQuery
.getBackendQueries(queryElement)
.stream()
.filter(query -> {
QueryProcessor processor = queryProcessors.get(query.getBackend());
if (processor != null) {
return true;
} else {
LOGGER.warn("There is no QueryProcessor available for '{}'", query.getBackend());
return false;
}
})
.flatMap(query -> {
QueryProcessor processor = queryProcessors.get(query.getBackend());
QueryAnalyzer queryAnalizer = queryAnalizerFactory.apply(query);
// all the magic happens here
Stream<Entry<ChannelName, Stream<? extends DataEvent>>> channelToDataEvents =
processor.process(queryAnalizer);
// do post-process
Stream<Entry<ChannelName, ?>> channelToData = queryAnalizer.postProcess(channelToDataEvents);
return channelToData.map(entry -> {
return Triple.of(query, entry.getKey(), entry.getValue());
});
});
// Now we have a stream that loads elements sequential BackendQuery by BackendQuery.
// By materializing the outer Stream the elements of all BackendQuery are loaded async
// (speeds things up but requires also more memory - i.e. it relies on Backends not loading
// all elements into memory at once)
resultStreams = resultStreams.collect(Collectors.toList()).stream();
results.add(Pair.of(queryElement, resultStreams));
}
return results;
}
/**
* Returns the current list of {@link Ordering}s available.
*

22
src/main/java/ch/psi/daq/queryrest/query/QueryManager.java Normal file
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@ -0,0 +1,22 @@
package ch.psi.daq.queryrest.query;
import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Stream;
import org.apache.commons.lang3.tuple.Triple;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.channels.ChannelsRequest;
import ch.psi.daq.domain.query.channels.ChannelsResponse;
import ch.psi.daq.query.model.impl.BackendQuery;
public interface QueryManager {
List<ChannelsResponse> getChannels(ChannelsRequest request) throws Exception;
List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> executeQueries(DAQQueries queries)
throws Exception;
}

157
src/main/java/ch/psi/daq/queryrest/query/QueryManagerImpl.java Normal file
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@ -0,0 +1,157 @@
package ch.psi.daq.queryrest.query;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;
import org.apache.commons.lang3.tuple.Pair;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import ch.psi.daq.cassandra.config.CassandraConfig;
import ch.psi.daq.domain.DataEvent;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.channels.ChannelsRequest;
import ch.psi.daq.domain.query.channels.ChannelsResponse;
import ch.psi.daq.domain.reader.Backend;
import ch.psi.daq.query.analyzer.QueryAnalyzer;
import ch.psi.daq.query.config.QueryConfig;
import ch.psi.daq.query.model.Query;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.query.processor.ChannelNameCache;
import ch.psi.daq.query.processor.QueryProcessor;
public class QueryManagerImpl implements QueryManager {
private static final Logger LOGGER = LoggerFactory.getLogger(QueryManagerImpl.class);
@Resource
private ApplicationContext appContext;
@Resource
private Function<Query, QueryAnalyzer> queryAnalizerFactory;
private Map<Backend, QueryProcessor> queryProcessors = new LinkedHashMap<>();
private ChannelNameCache channelNameCache;
@PostConstruct
public void afterPropertiesSet() {
List<Exception> exceptions = new ArrayList<>();
try {
QueryProcessor queryProcessor =
appContext.getBean(QueryConfig.BEAN_NAME_CASSANDRA_QUERY_PROCESSOR, QueryProcessor.class);
queryProcessors.put(queryProcessor.getBackend(), queryProcessor);
} catch (Exception e) {
exceptions.add(e);
LOGGER.warn("");
LOGGER.warn("##########");
LOGGER.warn("Could not load query processor for cassandra.");
LOGGER.warn("##########");
LOGGER.warn("");
}
try {
QueryProcessor queryProcessor =
appContext.getBean(QueryConfig.BEAN_NAME_ARCHIVER_APPLIANCE_QUERY_PROCESSOR, QueryProcessor.class);
queryProcessors.put(queryProcessor.getBackend(), queryProcessor);
} catch (Exception e) {
exceptions.add(e);
LOGGER.warn("");
LOGGER.warn("##########");
LOGGER.warn("Could not load query processor for archiverappliance.");
LOGGER.warn("##########");
LOGGER.warn("");
}
if (queryProcessors.isEmpty()) {
LOGGER.error("No query processor could be loaded! Exceptions were: ");
for (Exception exception : exceptions) {
LOGGER.error("", exception);
}
throw new RuntimeException("No Backends available!");
}
channelNameCache =
new ChannelNameCache(queryProcessors, appContext.getBean(CassandraConfig.BEAN_NAME_READ_TIMEOUT,
Integer.class).longValue());
}
@PreDestroy
public void destroy() {
channelNameCache.destroy();
}
@Override
public List<ChannelsResponse> getChannels(ChannelsRequest request) {
// in case not specified use defaults (e.g. GET)
if (request == null) {
request = new ChannelsRequest();
}
return channelNameCache.getChannels(request);
}
@Override
public List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> executeQueries(DAQQueries queries) {
// set backends if not defined yet
channelNameCache.setBackends(queries);
List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results =
new ArrayList<>(queries.getQueries().size());
for (DAQQueryElement queryElement : queries) {
Stream<Triple<BackendQuery, ChannelName, ?>> resultStreams =
BackendQuery
.getBackendQueries(queryElement)
.stream()
.filter(query -> {
QueryProcessor processor = queryProcessors.get(query.getBackend());
if (processor != null) {
return true;
} else {
LOGGER.warn("There is no QueryProcessor available for '{}'", query.getBackend());
return false;
}
})
.flatMap(query -> {
QueryProcessor processor = queryProcessors.get(query.getBackend());
QueryAnalyzer queryAnalizer = queryAnalizerFactory.apply(query);
// all the magic happens here
Stream<Entry<ChannelName, Stream<? extends DataEvent>>> channelToDataEvents =
processor.process(queryAnalizer);
// do post-process
Stream<Entry<ChannelName, ?>> channelToData = queryAnalizer.postProcess(channelToDataEvents);
return channelToData.map(entry -> {
return Triple.of(query, entry.getKey(), entry.getValue());
});
});
// Now we have a stream that loads elements sequential BackendQuery by BackendQuery.
// By materializing the outer Stream the elements of all BackendQuery are loaded async
// (speeds things up but requires also more memory - i.e. it relies on Backends not loading
// all elements into memory at once)
resultStreams = resultStreams.collect(Collectors.toList()).stream();
results.add(Pair.of(queryElement, resultStreams));
}
return results;
}
}

60
src/main/java/ch/psi/daq/queryrest/response/AbstractResponse.java Normal file
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@ -0,0 +1,60 @@
package ch.psi.daq.queryrest.response;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.ApplicationContext;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.core.JsonEncoding;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.domain.query.operation.ResponseImpl;
public abstract class AbstractResponse extends ResponseImpl {
public AbstractResponse(ResponseFormat format) {
super(format);
}
@JsonIgnore
@Override
public abstract void respond(ApplicationContext context, DAQQueries queries, Object response) throws Exception;
/**
* Configures the output stream and headers according to whether compression is wanted or not.
* <p>
* In order not to lose the information of the underlying type of data being transferred, the
* Content-Type header stays the same but, if compressed, the content-encoding header will be set
* accordingly.
*
* see http://tools.ietf.org/html/rfc2616#section-14.11 and see
* http://tools.ietf.org/html/rfc2616#section-3.5
*
* @param httpResponse The HttpServletResponse
* @param contentType The content type
* @return OutputStream The OutputStream
* @throws Exception Something goes wrong
*/
@JsonIgnore
protected OutputStream handleCompressionAndResponseHeaders(HttpServletResponse httpResponse,
String contentType) throws Exception {
OutputStream out = httpResponse.getOutputStream();
httpResponse.setCharacterEncoding(JsonEncoding.UTF8.getJavaName());
httpResponse.setContentType(contentType);
httpResponse.addHeader("Content-Type", contentType);
String filename = "data." + this.getFileSuffix();
httpResponse.addHeader("Content-Disposition", "attachment; filename=" + filename);
if (this.isCompressed()) {
httpResponse.addHeader("Content-Encoding", this.getCompression().toString());
out = this.getCompression().wrapStream(out);
}
return out;
}
}

54
src/main/java/ch/psi/daq/queryrest/response/AbstractResponseStreamWriter.java
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@ -1,54 +0,0 @@
/**
*
*/
package ch.psi.daq.queryrest.response;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;
import org.springframework.http.MediaType;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.domain.query.operation.ResponseOptions;
public abstract class AbstractResponseStreamWriter implements ResponseStreamWriter {
public static final String CONTENT_TYPE_CSV = "text/csv";
protected static final String CONTENT_TYPE_JSON = MediaType.APPLICATION_JSON_VALUE;
/**
* Configures the output stream and headers according to whether compression is wanted or not.
* <p>
* In order not to lose the information of the underlying type of data being transferred, the
* Content-Type header stays the same but, if compressed, the content-encoding header will be set
* accordingly.
*
* see http://tools.ietf.org/html/rfc2616#section-14.11 and
* see http://tools.ietf.org/html/rfc2616#section-3.5
*
* @param options The options for the response
* @param response The HttpServletResponse
* @param contentType The content type
* @return OutputStream The OutputStream
* @throws Exception Something goes wrong
*/
protected OutputStream handleCompressionAndResponseHeaders(ResponseOptions options, HttpServletResponse response,
String contentType) throws Exception {
OutputStream out = response.getOutputStream();
response.addHeader("Content-Type", contentType);
if (options.isCompressed()) {
String filename = "data." + options.getCompression().getFileSuffix();
response.addHeader("Content-Disposition", "attachment; filename=" + filename);
response.addHeader("Content-Encoding", options.getCompression().toString());
out = options.getCompression().wrapStream(out);
} else {
String filename = "data." + (options.getResponseFormat() == ResponseFormat.CSV ? "csv" : "json");
response.addHeader("Content-Disposition", "attachment; filename=" + filename);
}
return out;
}
}

20
src/main/java/ch/psi/daq/queryrest/response/PolymorphicResponseMixIn.java Normal file
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@ -0,0 +1,20 @@
package ch.psi.daq.queryrest.response;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import ch.psi.daq.queryrest.response.csv.CSVResponse;
import ch.psi.daq.queryrest.response.json.JSONResponse;
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.EXISTING_PROPERTY,
property = "format")
@JsonSubTypes({
@Type(value = JSONResponse.class, name = JSONResponse.FORMAT),
@Type(value = CSVResponse.class, name = CSVResponse.FORMAT)
})
// see: http://stackoverflow.com/questions/24631923/alternative-to-jackson-jsonsubtypes
public abstract class PolymorphicResponseMixIn {
}

9
src/main/java/ch/psi/daq/queryrest/response/ResponseStreamWriter.java
View File

@ -1,17 +1,16 @@
package ch.psi.daq.queryrest.response;
import java.io.OutputStream;
import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Stream;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.tuple.Triple;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.operation.ResponseOptions;
import ch.psi.daq.query.model.impl.BackendQuery;
public interface ResponseStreamWriter {
@ -21,10 +20,8 @@ public interface ResponseStreamWriter {
* {@link ServletResponse}.
*
* @param results The results results
* @param options The options for the response
* @param response {@link ServletResponse} instance given by the current HTTP request
* @param out The OutputStream
* @throws Exception thrown if writing to the output stream fails
*/
public void respond(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results, ResponseOptions options,
HttpServletResponse response) throws Exception;
public void respond(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results, OutputStream out) throws Exception;
}

94
src/main/java/ch/psi/daq/queryrest/response/csv/CSVResponse.java Normal file
View File

@ -0,0 +1,94 @@
package ch.psi.daq.queryrest.response.csv;
import java.io.OutputStream;
import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Stream;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import com.hazelcast.util.collection.ArrayUtils;
import ch.psi.daq.domain.FieldNames;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.operation.AggregationType;
import ch.psi.daq.domain.query.operation.Compression;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.queryrest.query.QueryManager;
import ch.psi.daq.queryrest.response.AbstractResponse;
public class CSVResponse extends AbstractResponse {
private static final Logger LOGGER = LoggerFactory.getLogger(CSVResponse.class);
public static final String FORMAT = "csv";
public static final String CONTENT_TYPE = "text/csv";
public CSVResponse() {
super(ResponseFormat.CSV);
}
public CSVResponse(Compression compression) {
this();
setCompression(compression);
}
@Override
public void respond(ApplicationContext context, DAQQueries queries, Object response) throws Exception {
OutputStream out;
if (response instanceof HttpServletResponse) {
out = super.handleCompressionAndResponseHeaders((HttpServletResponse) response, CONTENT_TYPE);
} else {
String message =
String.format("'%s' does not support response Object of type '%s'", getFormat().getKey(), response
.getClass().getName());
LOGGER.error(message);
throw new IllegalArgumentException(message);
}
// do csv specific validations
validateQueries(queries);
try {
LOGGER.debug("Executing query '{}'", queries);
QueryManager queryManager = context.getBean(QueryManager.class);
CSVResponseStreamWriter streamWriter = context.getBean(CSVResponseStreamWriter.class);
// execute query
List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> result =
queryManager.executeQueries(queries);
// write the response back to the client using java 8 streams
streamWriter.respond(result, out);
} catch (Exception e) {
LOGGER.error("Failed to execute query '{}'.", queries, e);
throw e;
}
}
protected void validateQueries(DAQQueries queries) {
for (DAQQueryElement query : queries) {
if (!(query.getAggregationType() == null || AggregationType.value.equals(query.getAggregationType()))) {
// We allow only no aggregation or value aggregation as
// extrema: nested structure and not clear how to map it to one line
// index: value is an array of Statistics whose size is not clear at initialization time
String message = "CSV export does not support '" + query.getAggregationType() + "'";
LOGGER.warn(message);
throw new IllegalArgumentException(message);
}
if (!ArrayUtils.contains(query.getColumns(), FieldNames.FIELD_GLOBAL_TIME)) {
query.addField(QueryField.globalMillis);
}
}
}
}

27
src/main/java/ch/psi/daq/queryrest/response/csv/CSVResponseStreamWriter.java
View File

@ -21,7 +21,6 @@ import java.util.stream.Stream;
import javax.annotation.Resource;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVPrinter;
@ -30,8 +29,6 @@ import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.core.JsonEncoding;
import ch.psi.daq.common.stream.StreamIterable;
import ch.psi.daq.common.stream.StreamMatcher;
import ch.psi.daq.domain.DataEvent;
@ -39,18 +36,18 @@ import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.operation.Aggregation;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.ResponseOptions;
import ch.psi.daq.query.analyzer.QueryAnalyzer;
import ch.psi.daq.query.model.Query;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.queryrest.response.AbstractResponseStreamWriter;
import ch.psi.daq.queryrest.response.ResponseStreamWriter;
/**
* Takes a Java 8 stream and writes it to the output stream provided by the {@link ServletResponse}
* of the current request.
*/
public class CSVResponseStreamWriter extends AbstractResponseStreamWriter {
public class CSVResponseStreamWriter implements ResponseStreamWriter {
private static final Logger LOGGER = LoggerFactory.getLogger(CSVResponseStreamWriter.class);
public static final char DELIMITER_CVS = ';';
public static final String DELIMITER_ARRAY = ",";
public static final char DELIMITER_CHANNELNAME_FIELDNAME = '.';
@ -61,27 +58,13 @@ public class CSVResponseStreamWriter extends AbstractResponseStreamWriter {
private static final ToLongFunction<Pair<ChannelName, DataEvent>> MATCHER_PROVIDER = (pair) -> pair.getValue()
.getGlobalMillis() / 10L;
private static final Logger LOGGER = LoggerFactory.getLogger(CSVResponseStreamWriter.class);
@Resource
private Function<Query, QueryAnalyzer> queryAnalizerFactory;
@Override
public void respond(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results,
ResponseOptions options,
HttpServletResponse response) throws Exception {
response.setCharacterEncoding(JsonEncoding.UTF8.getJavaName());
response.setContentType(CONTENT_TYPE_CSV);
respondInternal(results, options, response);
}
private void respondInternal(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results,
ResponseOptions options, HttpServletResponse response) throws Exception {
public void respond(final List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results, final OutputStream out) throws Exception {
AtomicReference<Exception> exception = new AtomicReference<>();
final OutputStream out = handleCompressionAndResponseHeaders(options, response, CONTENT_TYPE_CSV);
final Map<ChannelName, Stream<Pair<ChannelName, DataEvent>>> streams = new LinkedHashMap<>(results.size());
final List<String> header = new ArrayList<>();
final Collection<Pair<ChannelName, Function<DataEvent, String>>> accessors = new ArrayList<>();

69
src/main/java/ch/psi/daq/queryrest/response/json/JSONResponse.java Normal file
View File

@ -0,0 +1,69 @@
package ch.psi.daq.queryrest.response.json;
import java.io.OutputStream;
import java.util.List;
import java.util.Map.Entry;
import java.util.stream.Stream;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.http.MediaType;
import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueries;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.operation.Compression;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.queryrest.query.QueryManager;
import ch.psi.daq.queryrest.response.AbstractResponse;
public class JSONResponse extends AbstractResponse {
private static final Logger LOGGER = LoggerFactory.getLogger(JSONResponse.class);
public static final String FORMAT = "json";
public static final String CONTENT_TYPE = MediaType.APPLICATION_JSON_VALUE;
public JSONResponse() {
super(ResponseFormat.JSON);
}
public JSONResponse(Compression compression) {
this();
setCompression(compression);
}
@Override
public void respond(ApplicationContext context, DAQQueries queries, Object response) throws Exception {
OutputStream out;
if (response instanceof HttpServletResponse) {
out = super.handleCompressionAndResponseHeaders((HttpServletResponse) response, CONTENT_TYPE);
} else {
String message =
String.format("'%s' does not support response Object of type '%s'", getFormat().getKey(), response.getClass()
.getName());
LOGGER.error(message);
throw new IllegalArgumentException(message);
}
try {
LOGGER.debug("Executing query '{}'", queries);
QueryManager queryManager = context.getBean(QueryManager.class);
JSONResponseStreamWriter streamWriter = context.getBean(JSONResponseStreamWriter.class);
// execute query
List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> result = queryManager.executeQueries(queries);
// write the response back to the client using java 8 streams
streamWriter.respond(result, out);
} catch (Exception e) {
LOGGER.error("Failed to execute query '{}'.", queries, e);
throw e;
}
}
}

20
src/main/java/ch/psi/daq/queryrest/response/json/JSONResponseStreamWriter.java
View File

@ -10,12 +10,10 @@ import java.util.stream.Stream;
import javax.annotation.Resource;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.MediaType;
import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonFactory;
@ -29,15 +27,14 @@ import ch.psi.daq.domain.json.ChannelName;
import ch.psi.daq.domain.query.DAQQueryElement;
import ch.psi.daq.domain.query.operation.Aggregation;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.ResponseOptions;
import ch.psi.daq.query.model.impl.BackendQuery;
import ch.psi.daq.queryrest.response.AbstractResponseStreamWriter;
import ch.psi.daq.queryrest.response.ResponseStreamWriter;
/**
* Takes a Java 8 stream and writes it to the output stream provided by the {@link ServletResponse}
* of the current request.
*/
public class JSONResponseStreamWriter extends AbstractResponseStreamWriter {
public class JSONResponseStreamWriter implements ResponseStreamWriter {
private static final String DATA_RESP_FIELD = "data";
@ -49,20 +46,9 @@ public class JSONResponseStreamWriter extends AbstractResponseStreamWriter {
@Resource
private ObjectMapper mapper;
@Override
public void respond(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results,
ResponseOptions options, HttpServletResponse response) throws Exception {
response.setCharacterEncoding(JsonEncoding.UTF8.getJavaName());
response.setContentType(MediaType.APPLICATION_JSON_VALUE);
respondInternal(results, options, response);
}
private void respondInternal(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results,
ResponseOptions options, HttpServletResponse response) throws Exception {
public void respond(List<Entry<DAQQueryElement, Stream<Triple<BackendQuery, ChannelName, ?>>>> results, OutputStream out) throws Exception {
AtomicReference<Exception> exception = new AtomicReference<>();
OutputStream out = handleCompressionAndResponseHeaders(options, response, CONTENT_TYPE_JSON);
JsonGenerator generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);
try {

31
src/test/java/ch/psi/daq/test/queryrest/controller/QueryRestControllerCsvTest.java
View File

@ -32,12 +32,12 @@ import ch.psi.daq.domain.query.operation.Aggregation;
import ch.psi.daq.domain.query.operation.AggregationType;
import ch.psi.daq.domain.query.operation.Compression;
import ch.psi.daq.domain.query.operation.QueryField;
import ch.psi.daq.domain.query.operation.ResponseFormat;
import ch.psi.daq.domain.request.range.RequestRangeDate;
import ch.psi.daq.domain.request.range.RequestRangePulseId;
import ch.psi.daq.domain.request.range.RequestRangeTime;
import ch.psi.daq.domain.test.TestTimeUtils;
import ch.psi.daq.queryrest.controller.QueryRestController;
import ch.psi.daq.queryrest.response.csv.CSVResponse;
import ch.psi.daq.queryrest.response.csv.CSVResponseStreamWriter;
import ch.psi.daq.test.queryrest.AbstractDaqRestTest;
@ -62,7 +62,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
0,
1),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -155,7 +155,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
-1,
-1),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -245,7 +245,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
-1,
-1),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -332,7 +332,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
0,
1),
testChannel3));
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
channels = Arrays.asList(TEST_CHANNEL_01, TEST_CHANNEL_02, testChannel3);
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
@ -418,7 +418,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
0,
1),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -502,7 +502,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
TimeUtils.getTimeFromMillis(0, 0),
TimeUtils.getTimeFromMillis(10, 0)),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -587,7 +587,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
startDate,
endDate),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -675,7 +675,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
Ordering.asc,
AggregationType.extrema,
TEST_CHANNEL_NAMES[0]);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
String content = mapper.writeValueAsString(request);
@ -705,7 +705,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
Ordering.asc,
AggregationType.index,
TEST_CHANNEL_NAMES[0]);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
String content = mapper.writeValueAsString(request);
@ -739,7 +739,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
endDate),
channels);
request.setNrOfBins(2);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -839,7 +839,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
endDate),
channels);
request.setBinSize(100);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -934,7 +934,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
0,
1),
channels);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
LinkedHashSet<QueryField> queryFields = new LinkedHashSet<>();
queryFields.add(QueryField.channel);
@ -995,8 +995,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
10,
11),
TEST_CHANNEL_NAMES);
request.setResponseFormat(ResponseFormat.CSV);
request.setCompression(Compression.GZIP);
request.setResponse(new CSVResponse(Compression.GZIP));
String content = mapper.writeValueAsString(request);
@ -1018,7 +1017,7 @@ public class QueryRestControllerCsvTest extends AbstractDaqRestTest {
10,
11),
TEST_CHANNEL_NAMES);
request.setResponseFormat(ResponseFormat.CSV);
request.setResponse(new CSVResponse());
String content = mapper.writeValueAsString(request);

3
src/test/java/ch/psi/daq/test/queryrest/controller/QueryRestControllerJsonTest.java
View File

@ -24,6 +24,7 @@ import ch.psi.daq.domain.request.range.RequestRangePulseId;
import ch.psi.daq.domain.request.range.RequestRangeTime;
import ch.psi.daq.domain.test.TestTimeUtils;
import ch.psi.daq.queryrest.controller.QueryRestController;
import ch.psi.daq.queryrest.response.json.JSONResponse;
import ch.psi.daq.test.queryrest.AbstractDaqRestTest;
/**
@ -664,7 +665,7 @@ public class QueryRestControllerJsonTest extends AbstractDaqRestTest {
10,
11),
TEST_CHANNEL_NAMES);
request.setCompression(Compression.GZIP);
request.setResponse(new JSONResponse(Compression.GZIP));
String content = mapper.writeValueAsString(request);
System.out.println(content);

106
src/test/java/ch/psi/daq/test/queryrest/response/ResponseQueryTest.java Normal file
View File

@ -0,0 +1,106 @@
package ch.psi.daq.test.queryrest.response;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import javax.annotation.Resource;
import org.junit.Test;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import ch.psi.daq.domain.query.DAQQuery;
import ch.psi.daq.domain.query.operation.Compression;
import ch.psi.daq.domain.query.operation.Response;
import ch.psi.daq.domain.request.range.RequestRangePulseId;
import ch.psi.daq.queryrest.response.csv.CSVResponse;
import ch.psi.daq.queryrest.response.json.JSONResponse;
import ch.psi.daq.test.queryrest.AbstractDaqRestTest;
public class ResponseQueryTest extends AbstractDaqRestTest{
@Resource
private ObjectMapper mapper;
@Test
public void test_JSON_01() throws JsonParseException, JsonMappingException, IOException {
Response respose = new CSVResponse();
String value = mapper.writeValueAsString(respose);
Response deserial = mapper.readValue(value, Response.class);
assertEquals(respose.getClass(), deserial.getClass());
assertEquals(respose.getFormat(), deserial.getFormat());
assertEquals(respose.getCompression(), deserial.getCompression());
}
@Test
public void test_JSON_02() throws JsonParseException, JsonMappingException, IOException {
DAQQuery query = new DAQQuery(
new RequestRangePulseId(
0,
100),
"TestChannel_01");
query.setResponse(new CSVResponse(Compression.GZIP));
String value = mapper.writeValueAsString(query);
DAQQuery deserial = mapper.readValue(value, DAQQuery.class);
assertNotNull(deserial.getResponse());
assertEquals(query.getResponse().getClass(), deserial.getResponse().getClass());
assertEquals(query.getResponse().getFormat(), deserial.getResponse().getFormat());
assertEquals(query.getResponse().getCompression(), deserial.getResponse().getCompression());
assertEquals(query.getResponse().getCompression().getFileSuffix(), deserial.getResponse().getFileSuffix());
}
@Test
public void test_JSON_03() throws JsonParseException, JsonMappingException, IOException {
DAQQuery query = new DAQQuery(
new RequestRangePulseId(
0,
100),
"TestChannel_01");
query.setResponse(new JSONResponse(Compression.NONE));
String value = mapper.writeValueAsString(query);
int index = value.indexOf("format");
assertTrue(index >= 0);
index = value.indexOf("format", index + 1);
// ensure string contains identifier only once
assertEquals(-1, index);
DAQQuery deserial = mapper.readValue(value, DAQQuery.class);
assertNotNull(deserial.getResponse());
assertEquals(query.getResponse().getClass(), deserial.getResponse().getClass());
assertEquals(query.getResponse().getFormat(), deserial.getResponse().getFormat());
assertEquals(query.getResponse().getCompression(), deserial.getResponse().getCompression());
assertEquals(query.getResponse().getFormat().getFileSuffix(), deserial.getResponse().getFileSuffix());
}
@Test
public void test_JSON_04() throws JsonParseException, JsonMappingException, IOException {
DAQQuery query = new DAQQuery(
new RequestRangePulseId(
0,
100),
"TestChannel_01");
String value = mapper.writeValueAsString(query);
DAQQuery deserial = mapper.readValue(value, DAQQuery.class);
assertNull(deserial.getResponse());
}
}