package org.jboss.resteasy.jwt;
import org.jboss.resteasy.plugins.providers.jackson.ResteasyJacksonProvider;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedHashMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Providers;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class JsonSerialization
{
public static byte[] toByteArray(Object token, boolean indent) throws Exception
{
ResteasyProviderFactory factory = new ResteasyProviderFactory();
factory.register(new JWTContextResolver(indent));
factory.register(ResteasyJacksonProvider.class);
return toByteArray(token, factory);
}
public static byte[] toByteArray(Object token, ResteasyProviderFactory factory) throws IOException
{
MessageBodyWriter writer = factory.getMessageBodyWriter(token.getClass(), null, null, MediaType.APPLICATION_JSON_TYPE);
if (writer == null) throw new NullPointerException("Could not find MessageBodyWriter for JSON");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Providers old = ResteasyProviderFactory.getContextData(Providers.class);
ResteasyProviderFactory.pushContext(Providers.class, factory);
try
{
writer.writeTo(token, token.getClass(), null, null, MediaType.APPLICATION_JSON_TYPE, new MultivaluedHashMap<String, Object>(), baos);
return baos.toByteArray();
}
finally
{
ResteasyProviderFactory.popContextData(Providers.class);
if (old != null) ResteasyProviderFactory.pushContext(Providers.class, old);
}
}
public static String toString(Object token, ResteasyProviderFactory factory) throws Exception
{
byte[] bytes = toByteArray(token, factory);
return new String(bytes);
}
public static String toString(Object token, boolean indent) throws Exception
{
byte[] bytes = toByteArray(token, indent);
return new String(bytes);
}
public static <T> T fromString(Class<T> type, String json) throws Exception
{
byte[] bytes = json.getBytes("UTF-8");
return fromBytes(type, bytes);
}
public static <T> T fromString(Class<T> type, String json, ResteasyProviderFactory factory) throws Exception
{
byte[] bytes = json.getBytes("UTF-8");
return fromBytes(type, bytes, factory);
}
public static <T> T fromBytes(Class<T> type, byte[] bytes) throws IOException
{
ResteasyProviderFactory factory = new ResteasyProviderFactory();
factory.register(ResteasyJacksonProvider.class);
factory.register(JWTContextResolver.class);
return fromBytes(type, bytes, factory);
}
public static <T> T fromBytes(Class<T> type, byte[] bytes, ResteasyProviderFactory factory) throws IOException
{
MessageBodyReader<T> reader = factory.getMessageBodyReader(type, type, null, MediaType.APPLICATION_JSON_TYPE);
if (reader == null) throw new NullPointerException("Could not find MessageBodyReader for JSON");
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
Providers old = ResteasyProviderFactory.getContextData(Providers.class);
ResteasyProviderFactory.pushContext(Providers.class, factory);
try
{
return reader.readFrom(type, type, null, MediaType.APPLICATION_JSON_TYPE, new MultivaluedHashMap<String, String>(), bais);
}
finally
{
ResteasyProviderFactory.popContextData(Providers.class);
if (old != null) ResteasyProviderFactory.pushContext(Providers.class, old);
}
}
}