XmlRpcSunHttpTransport.java

Go to the documentation of this file.

/*
 * 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.xmlrpc.client;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

import org.apache.xmlrpc.XmlRpcException;
import org.apache.xmlrpc.XmlRpcRequest;
import org.apache.xmlrpc.common.XmlRpcStreamRequestConfig;
import org.apache.xmlrpc.util.HttpUtil;
import org.xml.sax.SAXException;


public class XmlRpcSunHttpTransport extends XmlRpcHttpTransport {
        private static final String userAgent = USER_AGENT + " (Sun HTTP Transport)";
        private URLConnection conn;

        public XmlRpcSunHttpTransport(XmlRpcClient pClient) {
                super(pClient, userAgent);
        }

    protected URLConnection newURLConnection(URL pURL) throws IOException {
        return pURL.openConnection();
    }

    protected URLConnection getURLConnection() {
        return conn;
    }

    public Object sendRequest(XmlRpcRequest pRequest) throws XmlRpcException {
                XmlRpcHttpClientConfig config = (XmlRpcHttpClientConfig) pRequest.getConfig();
                try {
                    final URLConnection c = conn = newURLConnection(config.getServerURL());
                        c.setUseCaches(false);
                        c.setDoInput(true);
                        c.setDoOutput(true);
                } catch (IOException e) {
                        throw new XmlRpcException("Failed to create URLConnection: " + e.getMessage(), e);
                }
                return super.sendRequest(pRequest);
        }

        protected void setRequestHeader(String pHeader, String pValue) {
            getURLConnection().setRequestProperty(pHeader, pValue);
        }

        protected void close() throws XmlRpcClientException {
            final URLConnection c = getURLConnection();
                if (c instanceof HttpURLConnection) {
                        ((HttpURLConnection) c).disconnect();
                }
        }

        protected boolean isResponseGzipCompressed(XmlRpcStreamRequestConfig pConfig) {
                return HttpUtil.isUsingGzipEncoding(getURLConnection().getHeaderField("Content-Encoding"));
        }

        protected InputStream getInputStream() throws XmlRpcException {
                try {
                    URLConnection connection = getURLConnection();
                    if ( connection instanceof HttpURLConnection ) {
                        HttpURLConnection httpConnection = (HttpURLConnection) connection;
                        int responseCode = httpConnection.getResponseCode();
                        if (responseCode < 200  ||  responseCode > 299) {
                            throw new XmlRpcHttpTransportException(responseCode, httpConnection.getResponseMessage());
                        }
                    }
                        return connection.getInputStream();
                } catch (IOException e) {
                        throw new XmlRpcException("Failed to create input stream: " + e.getMessage(), e);
                }
        }

        protected void writeRequest(ReqWriter pWriter) throws IOException, XmlRpcException, SAXException {
        pWriter.write(getURLConnection().getOutputStream());
        }
}