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[jOOQ/jOOQ#10072] Out of the box support mapping between XML and POJOs

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using JAXB
This commit is contained in:
Lukas Eder 2020-04-15 17:57:28 +02:00
parent 8446f10c10
commit 3032580fd4
2 changed files with 50 additions and 5 deletions
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16
jOOQ/src/main/java/org/jooq/impl/DefaultConverterProvider.java
View File

@ -58,6 +58,7 @@ import org.jooq.JSON;
import org.jooq.JSONB;
import org.jooq.Record;
import org.jooq.UDTRecord;
import org.jooq.XML;
import org.jooq.tools.Convert;
/**
@ -95,7 +96,13 @@ public final class DefaultConverterProvider implements ConverterProvider {
|| isDate(tWrapper) && isDate(uWrapper)
|| isEnum(tWrapper) && isEnum(uWrapper)
|| isUUID(tWrapper) && isUUID(uWrapper)
|| isJSON(tWrapper) // && isJSON(uWrapper)
// [#10072] out of the box JSON binding is supported via Jackson or Gson
|| isJSON(tWrapper)
// [#10072] out of the box XML binding is supported via JAXB
|| isXML(tWrapper)
|| Record.class.isAssignableFrom(tWrapper)
|| Struct.class.isAssignableFrom(tWrapper) && UDTRecord.class.isAssignableFrom(uWrapper)
) {
@ -133,8 +140,11 @@ public final class DefaultConverterProvider implements ConverterProvider {
private final boolean isJSON(Class<?> type) {
return type == JSON.class
|| type == JSONB.class
|| type == String.class;
|| type == JSONB.class;
}
private final boolean isXML(Class<?> type) {
return type == XML.class;
}
private final boolean isUUID(Class<?> type) {

39
jOOQ/src/main/java/org/jooq/tools/Convert.java
View File

@ -47,6 +47,8 @@ import static org.jooq.types.Unsigned.ulong;
import static org.jooq.types.Unsigned.ushort;
import java.io.File;
import java.io.StringReader;
import java.io.StringWriter;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.math.BigDecimal;
@ -80,6 +82,8 @@ import java.util.Set;
import java.util.UUID;
import java.util.regex.Pattern;
import javax.xml.bind.JAXB;
// ...
import org.jooq.Converter;
import org.jooq.EnumType;
@ -89,6 +93,7 @@ import org.jooq.JSONB;
import org.jooq.Record;
import org.jooq.SQLDialect;
import org.jooq.UDTRecord;
import org.jooq.XML;
import org.jooq.exception.DataTypeException;
import org.jooq.tools.jdbc.MockArray;
import org.jooq.tools.reflect.Reflect;
@ -96,6 +101,7 @@ import org.jooq.types.UByte;
import org.jooq.types.UInteger;
import org.jooq.types.ULong;
import org.jooq.types.UShort;
import org.jooq.util.xml.jaxb.InformationSchema;
/**
* Utility methods for type conversions
@ -137,6 +143,11 @@ public final class Convert {
*/
private static final Method JSON_READ_METHOD;
/**
* Whether a JAXB implementation is available.
*/
private static final boolean JAXB_AVAILABLE;
static {
Set<String> trueValues = new HashSet<>();
Set<String> falseValues = new HashSet<>();
@ -176,29 +187,43 @@ public final class Convert {
Object jsonMapper = null;
Method jsonReadMethod = null;
boolean jaxbAvailable = false;
try {
Class<?> klass = Class.forName("com.fasterxml.jackson.databind.ObjectMapper");
jsonMapper = klass.getConstructor().newInstance();
jsonReadMethod = klass.getMethod("readValue", String.class, Class.class);
log.debug("Jackson is available");
}
catch (Exception e1) {
log.debug("Jackson not found on the classpath");
log.debug("Jackson not available", e1.getMessage());
try {
Class<?> klass = Class.forName("com.google.gson.Gson");
jsonMapper = klass.getConstructor().newInstance();
jsonReadMethod = klass.getMethod("fromJson", String.class, Class.class);
log.debug("Gson is available");
}
catch (Exception e2) {
log.debug("Gson not found on the classpath");
log.debug("Gson not available", e2.getMessage());
}
}
JSON_MAPPER = jsonMapper;
JSON_READ_METHOD = jsonReadMethod;
try {
JAXB.marshal(new InformationSchema(), new StringWriter());
jaxbAvailable = true;
log.debug("JAXB is available");
}
catch (Exception e) {
log.debug("JAXB not available", e.getMessage());
}
JAXB_AVAILABLE = jaxbAvailable;
}
/**
@ -1078,6 +1103,16 @@ public final class Convert {
}
}
// [#10072] Out of the box JAXB mapping support
else if (fromClass == XML.class && JAXB_AVAILABLE) {
try {
return JAXB.unmarshal(new StringReader(((XML) from).data()), toClass);
}
catch (Exception e) {
throw new DataTypeException("Error while mapping XML to POJO using JAXB", e);
}
}
// [#3023] Record types can be converted using the supplied Configuration's
// RecordMapperProvider
else if (Record.class.isAssignableFrom(fromClass)) {