| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.client.util; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.net.URLEncoder; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.charset.UnsupportedCharsetException; |
| |
| import org.eclipse.jetty.client.api.ContentProvider; |
| import org.eclipse.jetty.util.Fields; |
| |
| /** |
| * A {@link ContentProvider} for form uploads with the |
| * "application/x-www-form-urlencoded" content type. |
| */ |
| public class FormContentProvider extends StringContentProvider |
| { |
| public FormContentProvider(Fields fields) |
| { |
| this(fields, StandardCharsets.UTF_8); |
| } |
| |
| public FormContentProvider(Fields fields, Charset charset) |
| { |
| super("application/x-www-form-urlencoded", convert(fields, charset), charset); |
| } |
| |
| public static String convert(Fields fields) |
| { |
| return convert(fields, StandardCharsets.UTF_8); |
| } |
| |
| public static String convert(Fields fields, Charset charset) |
| { |
| // Assume 32 chars between name and value. |
| StringBuilder builder = new StringBuilder(fields.getSize() * 32); |
| for (Fields.Field field : fields) |
| { |
| for (String value : field.getValues()) |
| { |
| if (builder.length() > 0) |
| builder.append("&"); |
| builder.append(encode(field.getName(), charset)).append("=").append(encode(value, charset)); |
| } |
| } |
| return builder.toString(); |
| } |
| |
| private static String encode(String value, Charset charset) |
| { |
| try |
| { |
| return URLEncoder.encode(value, charset.name()); |
| } |
| catch (UnsupportedEncodingException x) |
| { |
| throw new UnsupportedCharsetException(charset.name()); |
| } |
| } |
| } |