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*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
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package com.sun.jersey.oauth.client;
import java.io.ByteArrayOutputStream;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.net.URI;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.GenericEntity;
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.Providers;
import com.sun.jersey.api.client.ClientRequest;
import com.sun.jersey.api.uri.UriComponent;
import com.sun.jersey.core.util.MultivaluedMapImpl;
/**
* Utility class for processing client requests. This class somehow wants to be
* more than just a utility class for this one filter.
*
* @author Paul C. Bryan
*/
class RequestUtil {
private static final Annotation[] EMPTY_ANNOTATIONS = new Annotation[0];
/**
* Returns the media type of the request.
*
* @param request the client request to retrieve content type from.
* @return a {@link MediaType} object representing the media type of the request.
*/
public static MediaType getMediaType(ClientRequest request) {
final Object header = request.getMetadata().getFirst("Content-Type");
if (header == null) {
return null;
}
if (header instanceof MediaType) {
return (MediaType)header;
}
return MediaType.valueOf(header.toString());
}
/**
* Returns the query parameters of a request as a multi-valued map.
*
* @param request the client request to retrieve query parameters from.
* @return a {@link MultivaluedMap} containing the entity query parameters.
*/
public static MultivaluedMap getQueryParameters(ClientRequest request) {
URI uri = request.getURI();
if (uri == null) {
return null;
}
return UriComponent.decodeQuery(uri, true);
}
/**
* Returns the form parameters from a request entity as a multi-valued map.
* If the request does not have a POST method, or the media type is not
* x-www-form-urlencoded, then null is returned.
*
* @param request the client request containing the entity to extract parameters from.
* @param providers the registered service providers.
* @return a {@link MultivaluedMap} containing the entity form parameters.
*/
public static MultivaluedMap
getEntityParameters(ClientRequest request, Providers providers) {
Object entity = request.getEntity();
String method = request.getMethod();
MediaType mediaType = getMediaType(request);
// no entity, not a post or not x-www-form-urlencoded: return empty map
if (entity == null || method == null || !method.equalsIgnoreCase("POST") ||
mediaType == null || !mediaType.equals(MediaType.APPLICATION_FORM_URLENCODED_TYPE)) {
return new MultivaluedMapImpl();
}
// it's ready to go if already expressed as a multi-valued map
if (entity instanceof MultivaluedMap) {
return (MultivaluedMap)entity;
}
Type entityType = entity.getClass();
// if the entity is generic, get specific type and class
if (entity instanceof GenericEntity) {
final GenericEntity generic = (GenericEntity)entity;
entityType = generic.getType(); // overwrite
entity = generic.getEntity();
}
final Class entityClass = entity.getClass();
ByteArrayOutputStream out = new ByteArrayOutputStream();
MessageBodyWriter writer = providers.getMessageBodyWriter(entityClass,
entityType, EMPTY_ANNOTATIONS, MediaType.APPLICATION_FORM_URLENCODED_TYPE);
try {
writer.writeTo(entity, entityClass, entityType,
EMPTY_ANNOTATIONS, MediaType.APPLICATION_FORM_URLENCODED_TYPE, null, out);
}
catch (WebApplicationException wae) {
throw new IllegalStateException(wae);
}
catch (IOException ioe) {
throw new IllegalStateException(ioe);
}
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
MessageBodyReader reader = providers.getMessageBodyReader(MultivaluedMap.class,
MultivaluedMap.class, EMPTY_ANNOTATIONS, MediaType.APPLICATION_FORM_URLENCODED_TYPE);
try {
return (MultivaluedMap)reader.readFrom(MultivaluedMap.class,
MultivaluedMap.class, EMPTY_ANNOTATIONS, MediaType.APPLICATION_FORM_URLENCODED_TYPE, null, in);
}
catch (IOException ioe) {
throw new IllegalStateException(ioe);
}
}
}
