com.github.exabrial.formbinding.jaxrs.FormBindingMessageBodyWriter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of form-binding-jaxrs Show documentation

JAX-RS Message Body Reader and Writers for automatic form binding

The newest version!

package com.github.exabrial.formbinding.jaxrs;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;

import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

import com.github.exabrial.formbinding.FormBindingWriter;
import com.github.exabrial.formbinding.spi.FormBinding;

@Provider
@Produces(MediaType.APPLICATION_FORM_URLENCODED)
public class FormBindingMessageBodyWriter implements MessageBodyWriter {
	private static final FormBindingWriter writer = FormBinding.getWriter();

	@Override
	public boolean isWriteable(final Class type, final Type genericType, final Annotation[] annotations, final MediaType mediaType) {
		if (type.isAssignableFrom(Form.class) || type.isAssignableFrom(Collections.class)
				|| !mediaType.equals(MediaType.APPLICATION_FORM_URLENCODED_TYPE)) {
			return false;
		} else {
			return true;
		}
	}

	@Override
	public void writeTo(final T t, final Class type, final Type genericType, final Annotation[] annotations, final MediaType mediaType,
			final MultivaluedMap httpHeaders, final OutputStream entityStream) throws IOException, WebApplicationException {
		try (PrintWriter pw = new PrintWriter(entityStream)) {
			final String form = writer.write(t);
			pw.write(form);
		}
	}
}