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JaxbSerializationProvider.java
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JaxbSerializationProvider.java
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package org.kie.services.client.serialization;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import javax.xml.bind.Unmarshaller;
import org.kie.services.client.serialization.jaxb.impl.JaxbCommandsRequest;
import org.kie.services.client.serialization.jaxb.impl.JaxbCommandsResponse;
import org.kie.services.client.serialization.jaxb.impl.JaxbLongListResponse;
import org.kie.services.client.serialization.jaxb.impl.JaxbOtherResponse;
import org.kie.services.client.serialization.jaxb.impl.JaxbPrimitiveResponse;
import org.kie.services.client.serialization.jaxb.impl.JaxbVariablesResponse;
import org.kie.services.client.serialization.jaxb.impl.audit.JaxbHistoryLogList;
import org.kie.services.client.serialization.jaxb.impl.audit.JaxbNodeInstanceLog;
import org.kie.services.client.serialization.jaxb.impl.audit.JaxbProcessInstanceLog;
import org.kie.services.client.serialization.jaxb.impl.audit.JaxbVariableInstanceLog;
import org.kie.services.client.serialization.jaxb.impl.deploy.JaxbDeploymentDescriptor;
import org.kie.services.client.serialization.jaxb.impl.deploy.JaxbDeploymentJobResult;
import org.kie.services.client.serialization.jaxb.impl.deploy.JaxbDeploymentUnit;
import org.kie.services.client.serialization.jaxb.impl.deploy.JaxbDeploymentUnitList;
import org.kie.services.client.serialization.jaxb.impl.process.*;
import org.kie.services.client.serialization.jaxb.impl.task.JaxbContentResponse;
import org.kie.services.client.serialization.jaxb.impl.task.JaxbTaskFormResponse;
import org.kie.services.client.serialization.jaxb.impl.task.JaxbTaskResponse;
import org.kie.services.client.serialization.jaxb.impl.task.JaxbTaskSummaryListResponse;
import org.kie.services.client.serialization.jaxb.rest.JaxbExceptionResponse;
import org.kie.services.client.serialization.jaxb.rest.JaxbGenericResponse;
import org.kie.services.client.serialization.jaxb.rest.JaxbRequestStatus;
import com.sun.xml.bind.marshaller.CharacterEscapeHandler;
public class JaxbSerializationProvider implements SerializationProvider {
public final static int JMS_SERIALIZATION_TYPE = 0;
public static Set<Class<?>> KIE_JAXB_CLASS_SET;
static {
Class<?> [] kieJaxbClasses = {
// Command Request/Response
JaxbCommandsRequest.class,
JaxbCommandsResponse.class,
// command response
JaxbContentResponse.class,
JaxbTaskResponse.class,
JaxbTaskSummaryListResponse.class,
JaxbTaskFormResponse.class,
JaxbProcessInstanceListResponse.class,
JaxbProcessInstanceResponse.class,
JaxbProcessInstanceWithVariablesResponse.class,
JaxbProcessInstanceFormResponse.class,
// REST other
JaxbGenericResponse.class,
JaxbLongListResponse.class,
JaxbOtherResponse.class,
JaxbPrimitiveResponse.class,
JaxbVariablesResponse.class,
JaxbExceptionResponse.class,
JaxbGenericResponse.class,
JaxbRequestStatus.class,
// deployment
JaxbDeploymentJobResult.class,
JaxbDeploymentUnit.class,
JaxbDeploymentUnitList.class,
JaxbDeploymentDescriptor.class,
// process
JaxbProcessIdList.class,
JaxbProcessDefinition.class,
// workitem
JaxbWorkItem.class,
// history
JaxbHistoryLogList.class,
JaxbNodeInstanceLog.class,
JaxbProcessInstanceLog.class,
JaxbVariableInstanceLog.class
};
KIE_JAXB_CLASS_SET = new CopyOnWriteArraySet<Class<?>>(Arrays.asList(kieJaxbClasses));
};
public static Set<Class<?>> PRIMITIVE_ARRAY_CLASS_SET;
static {
Class<?> [] primitiveClasses = {
new Boolean[]{}.getClass(),
new Byte[]{}.getClass(),
new Character[]{}.getClass(),
new Double[]{}.getClass(),
new Float[]{}.getClass(),
new Integer[]{}.getClass(),
new Long[]{}.getClass(),
new Math[]{}.getClass(),
new Number[]{}.getClass(),
new Short[]{}.getClass(),
new String[]{}.getClass()
};
PRIMITIVE_ARRAY_CLASS_SET = new CopyOnWriteArraySet<Class<?>>(Arrays.asList(primitiveClasses));
};
private Set<Class<?>> jaxbClasses;
{
jaxbClasses = new HashSet<Class<?>>(KIE_JAXB_CLASS_SET);
jaxbClasses.addAll(PRIMITIVE_ARRAY_CLASS_SET);
}
private Set<Class<?>> extraJaxbClasses = new HashSet<Class<?>>();
private JAXBContext jaxbContext;
private boolean prettyPrint = false;
public JaxbSerializationProvider() {
initializeJaxbContext();
}
public JaxbSerializationProvider(Collection<Class<?>> extraJaxbClassList) {
extraJaxbClassList.addAll(extraJaxbClassList);
jaxbClasses.addAll(extraJaxbClassList);
initializeJaxbContext();
}
private void initializeJaxbContext() {
try {
jaxbContext = JAXBContext.newInstance(jaxbClasses.toArray(new Class[jaxbClasses.size()]));
} catch (JAXBException jaxbe) {
throw new UnsupportedOperationException("Unsupported JAXB Class during initialization: " + jaxbe.getMessage(), jaxbe);
}
}
public JAXBContext getJaxbContext() {
return this.jaxbContext;
}
public String serialize(Object object) {
Marshaller marshaller = null;
try {
marshaller = jaxbContext.createMarshaller();
if( prettyPrint ) {
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
}
} catch( JAXBException jaxbe ) {
throw new SerializationException("Unable to create JAXB marshaller", jaxbe);
}
try {
marshaller.setProperty(CharacterEscapeHandler.class.getName(), new CharacterEscapeHandler() {
public void escape(char[] ac, int i, int j, boolean flag, Writer writer) throws IOException {
writer.write( ac, i, j );
}
});
} catch (PropertyException e) {
throw new SerializationException("Unable to set CharacterEscapeHandler", e);
}
StringWriter stringWriter = new StringWriter();
try {
marshaller.marshal(object, stringWriter);
} catch( JAXBException jaxbe ) {
throw new SerializationException("Unable to marshall " + object.getClass().getSimpleName() + " instance.", jaxbe);
}
String output = stringWriter.toString();
return output;
}
public Object deserialize(Object xmlStrObject) {
if( ! (xmlStrObject instanceof String) ) {
throw new UnsupportedOperationException(JaxbSerializationProvider.class.getSimpleName() + " can only deserialize Strings");
}
String xmlStr = (String) xmlStrObject;
Unmarshaller unmarshaller = null;
try {
unmarshaller = jaxbContext.createUnmarshaller();
} catch( JAXBException jaxbe ) {
throw new SerializationException("Unable to create unmarshaller.", jaxbe);
}
ByteArrayInputStream xmlStrInputStream = new ByteArrayInputStream(xmlStr.getBytes(Charset.forName("UTF-8")));
Object jaxbObj = null;
try {
jaxbObj = unmarshaller.unmarshal(xmlStrInputStream);
} catch( JAXBException jaxbe ) {
throw new SerializationException("Unable to unmarshal string.", jaxbe);
}
return jaxbObj;
}
public void addJaxbClasses(Class<?>... jaxbClass) {
for (int i = 0; i < jaxbClass.length; ++i) {
jaxbClasses.add(jaxbClass[i]);
extraJaxbClasses.add(jaxbClass[i]);
}
initializeJaxbContext();
}
public void addJaxbClasses(Collection<Class<?>> jaxbClassList) {
for (Class<?> jaxbClass : jaxbClassList) {
jaxbClasses.add(jaxbClass);
extraJaxbClasses.add(jaxbClass);
}
initializeJaxbContext();
}
public Collection<Class<?>> getExtraJaxbClasses() {
return new HashSet<Class<?>>(extraJaxbClasses);
}
public static Set<Class<?>> commaSeperatedStringToClassSet(String extraClassNames) throws SerializationException {
return commaSeperatedStringToClassSet(JaxbSerializationProvider.class.getClassLoader(), extraClassNames);
}
public static Set<Class<?>> commaSeperatedStringToClassSet(ClassLoader classloader, String extraClassNames) throws SerializationException {
Set<Class<?>> classList = new HashSet<Class<?>>();
extraClassNames = extraClassNames.trim();
if( extraClassNames.isEmpty() ) {
return classList;
}
String [] extraClassNameList = split(extraClassNames);
if( extraClassNameList.length == 0 ) {
return classList;
}
// non-empty string/list
for( String extraClassName : extraClassNameList ) {
if( extraClassName.endsWith("[]") ) {
continue;
}
try {
classList.add(classloader.loadClass(extraClassName));
} catch( ClassNotFoundException cnfe ) {
throw new SerializationException("Unable to load JAXB class '" + extraClassName, cnfe);
}
}
return classList;
}
public static String classSetToCommaSeperatedString(Collection<Class<?>> extraClassList) throws SerializationException {
StringBuilder out = new StringBuilder("");
Set<Class<?>> extraClassSet = new HashSet<Class<?>>();
extraClassSet.addAll(extraClassList);
for( Class<?> extraClass : extraClassSet ) {
if (out.length() > 0) {
out.append(",");
}
String extraClassName = extraClass.getCanonicalName();
if( extraClassName == null ) {
throw new SerializationException("Only classes with canonical names can be used for serialization");
}
out.append(extraClassName);
}
return out.toString();
}
public static String[] split(String in) {
String[] splitIn = in.split(",");
List<String> outList = new ArrayList<String>();
for (int i = 0; i < splitIn.length; ++i) {
splitIn[i] = splitIn[i].trim();
if (!splitIn[i].isEmpty()) {
outList.add(splitIn[i]);
}
}
return outList.toArray(new String[outList.size()]);
}
public void setPrettyPrint(boolean prettyPrint) {
this.prettyPrint = prettyPrint;
}
public boolean getPrettyPrint() {
return this.prettyPrint;
}
}