| /** |
| * 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.camel.component.jetty; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| import java.util.concurrent.CountDownLatch; |
| |
| import org.apache.camel.AsyncCallback; |
| import org.apache.camel.CamelExchangeException; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.ExchangeTimedOutException; |
| import org.apache.camel.util.IOHelper; |
| import org.eclipse.jetty.client.ContentExchange; |
| import org.eclipse.jetty.client.HttpClient; |
| import org.eclipse.jetty.client.HttpExchange; |
| import org.eclipse.jetty.http.HttpHeaders; |
| import org.eclipse.jetty.io.Buffer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Jetty specific exchange which keeps track of the the request and response. |
| * |
| * @version |
| */ |
| public class JettyContentExchange extends ContentExchange { |
| |
| private static final transient Logger LOG = LoggerFactory.getLogger(JettyContentExchange.class); |
| |
| private final Map<String, String> headers = new LinkedHashMap<String, String>(); |
| private volatile Exchange exchange; |
| private volatile AsyncCallback callback; |
| private volatile JettyHttpBinding jettyBinding; |
| private volatile HttpClient client; |
| private final CountDownLatch done = new CountDownLatch(1); |
| |
| public JettyContentExchange(Exchange exchange, JettyHttpBinding jettyBinding, HttpClient client) { |
| super(true); // keep headers by default |
| this.exchange = exchange; |
| this.jettyBinding = jettyBinding; |
| this.client = client; |
| } |
| |
| public void setCallback(AsyncCallback callback) { |
| this.callback = callback; |
| } |
| |
| @Override |
| protected void onResponseHeader(Buffer name, Buffer value) throws IOException { |
| super.onResponseHeader(name, value); |
| headers.put(name.toString(), value.toString()); |
| } |
| |
| @Override |
| protected void onRequestComplete() throws IOException { |
| // close the input stream when its not needed anymore |
| InputStream is = getRequestContentSource(); |
| if (is != null) { |
| IOHelper.close(is, "RequestContentSource", LOG); |
| } |
| } |
| |
| @Override |
| protected void onResponseComplete() throws IOException { |
| try { |
| super.onResponseComplete(); |
| } finally { |
| doTaskCompleted(); |
| } |
| } |
| |
| @Override |
| protected void onExpire() { |
| try { |
| super.onExpire(); |
| } finally { |
| doTaskCompleted(); |
| } |
| } |
| |
| @Override |
| protected void onException(Throwable ex) { |
| try { |
| super.onException(ex); |
| } finally { |
| doTaskCompleted(ex); |
| } |
| } |
| |
| @Override |
| protected void onConnectionFailed(Throwable ex) { |
| try { |
| super.onConnectionFailed(ex); |
| } finally { |
| doTaskCompleted(ex); |
| } |
| } |
| |
| public Map<String, String> getHeaders() { |
| return headers; |
| } |
| |
| public String getBody() throws UnsupportedEncodingException { |
| return super.getResponseContent(); |
| } |
| |
| public String getUrl() { |
| String params = getRequestFields().getStringField(HttpHeaders.CONTENT_ENCODING); |
| return getScheme() + "//" + getAddress().toString() + getURI() + (params != null ? "?" + params : ""); |
| } |
| |
| protected void doTaskCompleted() { |
| // make sure to lower the latch |
| done.countDown(); |
| |
| if (callback == null) { |
| // this is only for the async callback |
| return; |
| } |
| |
| int exchangeState = getStatus(); |
| |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("TaskComplete with state " + exchangeState + " for url: " + getUrl()); |
| } |
| |
| try { |
| if (exchangeState == HttpExchange.STATUS_COMPLETED) { |
| // process the response as the state is ok |
| try { |
| jettyBinding.populateResponse(exchange, this); |
| } catch (Exception e) { |
| exchange.setException(e); |
| } |
| } else if (exchangeState == HttpExchange.STATUS_EXPIRED) { |
| // we did timeout |
| exchange.setException(new ExchangeTimedOutException(exchange, client.getTimeout())); |
| } else { |
| // some kind of other error |
| if (exchange.getException() != null) { |
| exchange.setException(new CamelExchangeException("JettyClient failed with state " + exchangeState, exchange)); |
| } |
| } |
| } finally { |
| // now invoke callback to indicate we are done async |
| callback.done(false); |
| } |
| } |
| |
| protected void doTaskCompleted(Throwable ex) { |
| try { |
| // some kind of other error |
| exchange.setException(new CamelExchangeException("JettyClient failed cause by: " + ex.getMessage(), exchange, ex)); |
| } finally { |
| // make sure to lower the latch |
| done.countDown(); |
| } |
| |
| if (callback != null) { |
| // now invoke callback to indicate we are done async |
| callback.done(false); |
| } |
| } |
| |
| } |