| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.fluent; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.hc.client5.http.ClientProtocolException; |
| import org.apache.hc.client5.http.HttpResponseException; |
| import org.apache.hc.core5.http.ClassicHttpResponse; |
| import org.apache.hc.core5.http.ContentType; |
| import org.apache.hc.core5.http.HttpEntity; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.io.HttpClientResponseHandler; |
| import org.apache.hc.core5.http.io.entity.ByteArrayEntity; |
| import org.apache.hc.core5.http.io.entity.EntityUtils; |
| |
| /** |
| * HTTP response used by the fluent facade. |
| * |
| * @since 4.2 |
| */ |
| public class Response { |
| |
| private final ClassicHttpResponse response; |
| private boolean consumed; |
| |
| Response(final ClassicHttpResponse response) { |
| super(); |
| this.response = response; |
| } |
| |
| private void assertNotConsumed() { |
| if (this.consumed) { |
| throw new IllegalStateException("Response content has been already consumed"); |
| } |
| } |
| |
| private void dispose() { |
| if (this.consumed) { |
| return; |
| } |
| try { |
| final HttpEntity entity = this.response.getEntity(); |
| final InputStream content = entity.getContent(); |
| if (content != null) { |
| content.close(); |
| } |
| } catch (final Exception ignore) { |
| } finally { |
| this.consumed = true; |
| } |
| } |
| |
| /** |
| * Discards response content and deallocates all resources associated with it. |
| */ |
| public void discardContent() { |
| dispose(); |
| } |
| |
| /** |
| * Handles the response using the specified {@link HttpClientResponseHandler} |
| */ |
| public <T> T handleResponse(final HttpClientResponseHandler<T> handler) throws IOException { |
| assertNotConsumed(); |
| try { |
| return handler.handleResponse(this.response); |
| } catch (final HttpException ex) { |
| throw new ClientProtocolException(ex); |
| } finally { |
| dispose(); |
| } |
| } |
| |
| public Content returnContent() throws IOException { |
| return handleResponse(new ContentResponseHandler()); |
| } |
| |
| public HttpResponse returnResponse() throws IOException { |
| assertNotConsumed(); |
| try { |
| final HttpEntity entity = this.response.getEntity(); |
| if (entity != null) { |
| final ByteArrayEntity byteArrayEntity = new ByteArrayEntity( |
| EntityUtils.toByteArray(entity), ContentType.parse(entity.getContentType())); |
| this.response.setEntity(byteArrayEntity); |
| } |
| return this.response; |
| } finally { |
| this.consumed = true; |
| } |
| } |
| |
| public void saveContent(final File file) throws IOException { |
| assertNotConsumed(); |
| final int status = response.getCode(); |
| if (status >= HttpStatus.SC_REDIRECTION) { |
| throw new HttpResponseException(status, response.getReasonPhrase()); |
| } |
| try (FileOutputStream out = new FileOutputStream(file)) { |
| final HttpEntity entity = this.response.getEntity(); |
| if (entity != null) { |
| entity.writeTo(out); |
| } |
| } finally { |
| this.consumed = true; |
| |
| } |
| } |
| |
| } |