| /** |
| * 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.util.Map; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Message; |
| import org.apache.camel.RuntimeCamelException; |
| import org.apache.camel.component.http.HttpConstants; |
| import org.apache.camel.component.http.HttpHeaderFilterStrategy; |
| import org.apache.camel.component.http.HttpOperationFailedException; |
| import org.apache.camel.component.http.helper.HttpHelper; |
| import org.apache.camel.spi.HeaderFilterStrategy; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * @version |
| */ |
| public class DefaultJettyHttpBinding implements JettyHttpBinding { |
| |
| private static final transient Logger LOG = LoggerFactory.getLogger(DefaultJettyHttpBinding.class); |
| private HeaderFilterStrategy headerFilterStrategy = new HttpHeaderFilterStrategy(); |
| private boolean throwExceptionOnFailure; |
| private boolean transferException; |
| |
| public void populateResponse(Exchange exchange, JettyContentExchange httpExchange) throws Exception { |
| int responseCode = httpExchange.getResponseStatus(); |
| |
| LOG.debug("HTTP responseCode: {}", responseCode); |
| |
| Message in = exchange.getIn(); |
| if (!isThrowExceptionOnFailure()) { |
| // if we do not use failed exception then populate response for all response codes |
| populateResponse(exchange, httpExchange, in, getHeaderFilterStrategy(), responseCode); |
| } else { |
| if (responseCode >= 100 && responseCode < 300) { |
| // only populate response for OK response |
| populateResponse(exchange, httpExchange, in, getHeaderFilterStrategy(), responseCode); |
| } else { |
| // operation failed so populate exception to throw |
| throw populateHttpOperationFailedException(exchange, httpExchange, responseCode); |
| } |
| } |
| } |
| |
| public HeaderFilterStrategy getHeaderFilterStrategy() { |
| return headerFilterStrategy; |
| } |
| |
| public void setHeaderFilterStrategy(HeaderFilterStrategy headerFilterStrategy) { |
| this.headerFilterStrategy = headerFilterStrategy; |
| } |
| |
| public boolean isThrowExceptionOnFailure() { |
| return throwExceptionOnFailure; |
| } |
| |
| public void setThrowExceptionOnFailure(boolean throwExceptionOnFailure) { |
| this.throwExceptionOnFailure = throwExceptionOnFailure; |
| } |
| |
| public boolean isTransferException() { |
| return transferException; |
| } |
| |
| public void setTransferException(boolean transferException) { |
| this.transferException = transferException; |
| } |
| |
| protected void populateResponse(Exchange exchange, JettyContentExchange httpExchange, |
| Message in, HeaderFilterStrategy strategy, int responseCode) throws IOException { |
| Message answer = exchange.getOut(); |
| |
| answer.setHeaders(in.getHeaders()); |
| answer.setHeader(Exchange.HTTP_RESPONSE_CODE, responseCode); |
| |
| // propagate HTTP response headers |
| // must use entrySet to ensure case of keys is preserved |
| for (Map.Entry<String, String> entry : httpExchange.getHeaders().entrySet()) { |
| String name = entry.getKey(); |
| String value = entry.getValue(); |
| if (name.toLowerCase().equals("content-type")) { |
| name = Exchange.CONTENT_TYPE; |
| } |
| if (strategy != null && !strategy.applyFilterToExternalHeaders(name, value, exchange)) { |
| answer.setHeader(name, value); |
| } |
| } |
| |
| // extract body after headers has been set as we want to ensure content-type from Jetty HttpExchange |
| // has been populated first |
| answer.setBody(extractResponseBody(exchange, httpExchange)); |
| } |
| |
| protected Exception populateHttpOperationFailedException(Exchange exchange, JettyContentExchange httpExchange, |
| int responseCode) throws IOException { |
| HttpOperationFailedException answer; |
| String uri = httpExchange.getUrl(); |
| Map<String, String> headers = httpExchange.getHeaders(); |
| Object responseBody = extractResponseBody(exchange, httpExchange); |
| |
| if (transferException && responseBody != null && responseBody instanceof Exception) { |
| // if the response was a serialized exception then use that |
| return (Exception) responseBody; |
| } |
| |
| // make a defensive copy of the response body in the exception so its detached from the cache |
| String copy = null; |
| if (responseBody != null) { |
| copy = exchange.getContext().getTypeConverter().convertTo(String.class, exchange, responseBody); |
| } |
| |
| if (responseCode >= 300 && responseCode < 400) { |
| String locationHeader = httpExchange.getResponseFields().getStringField("location"); |
| if (locationHeader != null) { |
| answer = new HttpOperationFailedException(uri, responseCode, null, locationHeader, headers, copy); |
| } else { |
| // no redirect location |
| answer = new HttpOperationFailedException(uri, responseCode, null, null, headers, copy); |
| } |
| } else { |
| // internal server error (error code 500) |
| answer = new HttpOperationFailedException(uri, responseCode, null, null, headers, copy); |
| } |
| |
| return answer; |
| } |
| |
| protected Object extractResponseBody(Exchange exchange, JettyContentExchange httpExchange) throws IOException { |
| String contentType = httpExchange.getHeaders().get(Exchange.CONTENT_TYPE); |
| |
| // if content type is serialized java object, then de-serialize it to a Java object |
| if (contentType != null && HttpConstants.CONTENT_TYPE_JAVA_SERIALIZED_OBJECT.equals(contentType)) { |
| try { |
| InputStream is = exchange.getContext().getTypeConverter().mandatoryConvertTo(InputStream.class, httpExchange.getResponseContentBytes()); |
| return HttpHelper.deserializeJavaObjectFromStream(is); |
| } catch (Exception e) { |
| throw new RuntimeCamelException("Cannot deserialize body to Java object", e); |
| } |
| } else { |
| // just grab the content as string |
| return httpExchange.getBody(); |
| } |
| } |
| |
| } |