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http://jira.mfd.msk:8088/browse/BKI-3191 fix concurrency bug in XmlProcessorStaxImpl

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This commit is contained in:
Mikhail Trofimov 2025-09-04 12:48:59 +03:00
parent 3fe63a93ec
commit 111d8b876b
5 changed files with 29 additions and 20 deletions
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11
src/main/java/ru/nbch/credit_tracker/config/xml/XmlConfig.java
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@ -14,6 +14,7 @@ import ru.nbch.credit_tracker.service.xml.stax.*;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;
@Configuration
public class XmlConfig {
@ -30,11 +31,11 @@ public class XmlConfig {
@Bean
public StaxXmlProcessor staxXmlProcessor() {
List<StaxReader<?>> staxReader = new ArrayList<>();
staxReader.add(new SgnlReportStatusStaxReader());
staxReader.add(new MonitoringRequestStaxReader());
staxReader.add(new OnlineDownloadReportPersonsStaxReader());
staxReader.add(new MonitoringSignalResponseStaxXmlReader());
List<Supplier<StaxReader<?>>> staxReader = new ArrayList<>();
staxReader.add(SgnlReportStatusStaxReader::new);
staxReader.add(MonitoringRequestStaxReader::new);
staxReader.add(OnlineDownloadReportPersonsStaxReader::new);
staxReader.add(MonitoringSignalResponseStaxXmlReader::new);
return new XmlProcessorStaxImpl(staxReader);
}
}

2
src/main/java/ru/nbch/credit_tracker/service/xml/stax/SgnlReportStatusStaxReader.java
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@ -1,6 +1,5 @@
package ru.nbch.credit_tracker.service.xml.stax;
import org.springframework.stereotype.Component;
import ru.nbch.credit_tracker.entities.external_response.errors.Error;
import ru.nbch.credit_tracker.entities.external_response.errors.InputParams;
import ru.nbch.credit_tracker.entities.external_response.errors.SgnlReport;
@ -8,7 +7,6 @@ import ru.nbch.credit_tracker.entities.external_response.errors.SgnlReport;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
@Component
public class SgnlReportStatusStaxReader extends BaseStaxReader<SgnlReport> {
@Override

24
src/main/java/ru/nbch/credit_tracker/service/xml/stax/XmlProcessorStaxImpl.java
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@ -17,13 +17,14 @@ import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
public class XmlProcessorStaxImpl implements StaxXmlProcessor {
private final Logger log = LoggerFactory.getLogger(getClass());
protected XMLInputFactory xmlInputFactory;
protected Map<Class<?>, StaxReader<?>> staxReaders = new HashMap<>();
protected Map<Class<?>, Supplier<StaxReader<?>>> staxReaders = new HashMap<>();
public XmlProcessorStaxImpl(List<StaxReader<?>> staxReaders) {
public XmlProcessorStaxImpl(List<Supplier<StaxReader<?>>> staxReaders) {
this.xmlInputFactory = XMLInputFactory.newInstance();
this.xmlInputFactory.setProperty(XMLInputFactory.SUPPORT_DTD, false); // полностью выключить DOCTYPE Declaration
// или выключить особо опасные возможности (менее строгое ограничение XXE, но достаточное):
@ -32,10 +33,13 @@ public class XmlProcessorStaxImpl implements StaxXmlProcessor {
this.xmlInputFactory.setXMLResolver((publicID, systemID, baseURI, namespace) -> {
throw new XMLStreamException("External entities are disabled");
});
staxReaders.forEach(reader -> this.staxReaders.put(reader.type(), reader));
staxReaders.forEach(supplier -> {
Class<?> type = supplier.get().type();
this.staxReaders.put(type, supplier);
});
}
public XmlProcessorStaxImpl(StaxReader<?>... staxReaders) {
public XmlProcessorStaxImpl(Supplier<StaxReader<?>>... staxReaders) {
this(Arrays.asList(staxReaders));
}
@ -43,8 +47,9 @@ public class XmlProcessorStaxImpl implements StaxXmlProcessor {
public <Z> Z read(String xml, Class<Z> clazz) {
try {
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(new StringReader(xml));
Supplier<StaxReader<?>> staxReaderSupplier = staxReaders.get(clazz);
@SuppressWarnings("unchecked")
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaders.get(clazz);
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaderSupplier.get();
if (staxProcessor != null) {
return staxProcessor.read(xmlStreamReader);
}
@ -62,8 +67,9 @@ public class XmlProcessorStaxImpl implements StaxXmlProcessor {
public <Z> Z read(byte[] xml, Class<Z> clazz) {
try {
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(new ByteArrayInputStream(xml));
Supplier<StaxReader<?>> staxReaderSupplier = staxReaders.get(clazz);
@SuppressWarnings("unchecked")
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaders.get(clazz);
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaderSupplier.get();
if (staxProcessor != null) {
return staxProcessor.read(xmlStreamReader);
}
@ -81,8 +87,9 @@ public class XmlProcessorStaxImpl implements StaxXmlProcessor {
public <Z> Z read(InputStream inputStream, Class<Z> clazz) {
try {
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(inputStream);
Supplier<StaxReader<?>> staxReaderSupplier = staxReaders.get(clazz);
@SuppressWarnings("unchecked")
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaders.get(clazz);
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaderSupplier.get();
if (staxProcessor != null) {
return staxProcessor.read(xmlStreamReader);
}
@ -100,8 +107,9 @@ public class XmlProcessorStaxImpl implements StaxXmlProcessor {
public <Z> Z read(InputStream inputStream, Class<Z> clazz, Consumer<Z> objProcessor, Function<Z, Boolean> emptyBatchCheckFunction, Integer batchSize, String endBatchElementPath) {
try {
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(inputStream);
Supplier<StaxReader<?>> staxReaderSupplier = staxReaders.get(clazz);
@SuppressWarnings("unchecked")
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaders.get(clazz);
StaxReader<Z> staxProcessor = (StaxReader<Z>) staxReaderSupplier.get();
if (staxProcessor != null) {
return staxProcessor.read(xmlStreamReader, objProcessor, emptyBatchCheckFunction, batchSize, endBatchElementPath);
}

7
src/test/java/ru/nbch/credit_tracker/stax/StaxTest.java
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@ -16,6 +16,7 @@ import javax.xml.stream.XMLStreamException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;
@SpringBootTest(classes = {StaxTest.TestConfig.class})
public class StaxTest {
@ -31,9 +32,9 @@ public class StaxTest {
public static class TestConfig {
@Bean
public StaxXmlProcessor xmlProcessor() {
List<StaxReader<?>> staxReader = new ArrayList<>();
staxReader.add(new MonitoringRequestStaxReader());
staxReader.add(new OnlineDownloadReportPersonsStaxReader());
List<Supplier<StaxReader<?>>> staxReader = new ArrayList<>();
staxReader.add(MonitoringRequestStaxReader::new);
staxReader.add(OnlineDownloadReportPersonsStaxReader::new);
return new XmlProcessorStaxImpl(staxReader);
}
}

5
src/test/java/ru/nbch/credit_tracker/utils/ValidationUtilTest.java
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@ -22,6 +22,7 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Supplier;
import java.util.stream.Stream;
import java.util.zip.ZipInputStream;
@ -41,8 +42,8 @@ public class ValidationUtilTest {
public static class TestConfig {
@Bean
public StaxXmlProcessor xmlProcessor() {
List<StaxReader<?>> staxReader = new ArrayList<>();
staxReader.add(new MonitoringRequestStaxReader());
List<Supplier<StaxReader<?>>> staxReader = new ArrayList<>();
staxReader.add(MonitoringRequestStaxReader::new);
return new XmlProcessorStaxImpl(staxReader);
}
}