net.hamnaberg.json.jaxrs.CollectionJsonReaderAndWriter Maven / Gradle / Ivy
package net.hamnaberg.json.jaxrs;
import net.hamnaberg.json.Collection;
import net.hamnaberg.json.Template;
import net.hamnaberg.json.Writable;
import net.hamnaberg.json.parser.CollectionParser;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
@Provider
@Produces(Constants.MEDIA_TYPE_STRING)
public final class CollectionJsonReaderAndWriter implements MessageBodyReader, MessageBodyWriter {
private final CollectionParser parser = new CollectionParser();
@Override
public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
boolean compatible = mediaType.isCompatible(Constants.MEDIA_TYPE);
return compatible && (Template.class.equals(type));
}
@Override
public Template readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
return parser.parseTemplate(entityStream);
}
@Override
public boolean isWriteable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
boolean compatible = mediaType.isCompatible(Constants.MEDIA_TYPE);
return compatible && (Template.class.equals(type) || Collection.class.equals(type));
}
@Override
public long getSize(Writable writable, Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return -1;
}
@Override
public void writeTo(Writable writable, Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
writable.writeTo(entityStream);
}
}
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