package org.jboss.resteasy.test.response.resource;
import javax.ws.rs.Consumes;
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.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Date;
import java.util.concurrent.atomic.AtomicInteger;
@Provider
public class ResponseDateReaderWriter implements MessageBodyReader<Date>,
MessageBodyWriter<Date> {
public static final int ANNOTATION_NONE = 0;
public static final int ANNOTATION_CONSUMES = 1 << 2;
public static final int ANNOTATION_PROVIDER = 1 << 3;
public static final int ANNOTATION_UNKNOWN = 1 << 7;
private final AtomicInteger atom;
public ResponseDateReaderWriter(final AtomicInteger atom) {
super();
this.atom = atom;
}
@Override
public long getSize(Date arg0, Class<?> arg1, Type arg2, Annotation[] arg3,
MediaType arg4) {
return String.valueOf(Long.MAX_VALUE).length();
}
@Override
public boolean isWriteable(Class<?> arg0, Type arg1, Annotation[] arg2,
MediaType arg3) {
return arg0 == Date.class;
}
@Override
public void writeTo(Date date, Class<?> arg1, Type arg2, Annotation[] arg3,
MediaType arg4, MultivaluedMap<String, Object> arg5,
OutputStream stream) throws IOException, WebApplicationException {
parseAnnotations(arg3);
stream.write(String.valueOf(date.getTime()).getBytes());
}
@Override
public boolean isReadable(Class<?> arg0, Type arg1, Annotation[] arg2,
MediaType arg3) {
return isWriteable(arg0, arg1, arg2, arg3);
}
@Override
public Date readFrom(Class<Date> arg0, Type arg1, Annotation[] arg2,
MediaType arg3, MultivaluedMap<String, String> arg4,
InputStream arg5) throws IOException, WebApplicationException {
parseAnnotations(arg2);
InputStreamReader reader = new InputStreamReader(arg5);
BufferedReader br = new BufferedReader(reader);
long date = Long.parseLong(br.readLine());
return new Date(date);
}
protected void parseAnnotations(Annotation[] annotations) {
int value = ANNOTATION_NONE;
if (annotations != null) {
for (Annotation annotation : annotations) {
if (annotation.annotationType() == Consumes.class) {
value |= ANNOTATION_CONSUMES;
} else if (annotation.annotationType() == Provider.class) {
value |= ANNOTATION_PROVIDER;
} else {
value |= ANNOTATION_UNKNOWN;
}
}
}
atom.set(value);
}
}