/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.jaxrs.provider;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.List;
import javax.ws.rs.ConsumeMime;
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.Provider;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.jaxrs.impl.MetadataMap;
@ConsumeMime("application/x-www-form-urlencoded")
@Provider
public final class FormEncodingReaderProvider implements MessageBodyReader<Object> {
public boolean isReadable(Class<?> type, Type genericType,
Annotation[] annotations) {
return type.isAssignableFrom(MultivaluedMap.class);
}
public MultivaluedMap<String, String> readFrom(
Class<Object> clazz, Type genericType, Annotation[] annotations, MediaType type,
MultivaluedMap<String, String> headers, InputStream is)
throws IOException {
try {
String charset = "UTF-8";
ByteArrayOutputStream bos = new ByteArrayOutputStream();
copy(is, bos, 1024);
String postBody = new String(bos.toByteArray(), charset);
MultivaluedMap<String, String> params = getParams(postBody);
return params;
} catch (Exception e) {
throw new WebApplicationException(e);
}
}
public static void copy(final InputStream input, final OutputStream output, final int bufferSize)
throws IOException {
final byte[] buffer = new byte[bufferSize];
int n = 0;
n = input.read(buffer);
while (-1 != n) {
output.write(buffer, 0, n);
n = input.read(buffer);
}
}
/**
* Retrieve map of parameters from the passed in message
*
* @param message
* @return a Map of parameters.
*/
protected static MultivaluedMap<String, String> getParams(String body) {
MultivaluedMap<String, String> params = new MetadataMap<String, String>();
if (!StringUtils.isEmpty(body)) {
List<String> parts = Arrays.asList(body.split("&"));
for (String part : parts) {
String[] keyValue = part.split("=");
// Change to add blank string if key but not value is specified
if (keyValue.length == 2) {
params.add(keyValue[0], keyValue[1]);
} else {
params.add(keyValue[0], "");
}
}
}
return params;
}
}