| /* |
| * 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.olingo.client.core.communication.request.streamed; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.nio.charset.Charset; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Future; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.http.HttpResponse; |
| import org.apache.http.client.methods.HttpEntityEnclosingRequestBase; |
| import org.apache.olingo.client.api.ODataBatchConstants; |
| import org.apache.olingo.client.api.ODataClient; |
| import org.apache.olingo.client.api.communication.request.ODataPayloadManager; |
| import org.apache.olingo.client.api.communication.request.ODataStreamedRequest; |
| import org.apache.olingo.client.api.communication.request.ODataStreamer; |
| import org.apache.olingo.client.api.communication.request.batch.ODataBatchRequest; |
| import org.apache.olingo.client.api.communication.response.ODataResponse; |
| import org.apache.olingo.client.core.communication.request.AbstractODataRequest; |
| import org.apache.olingo.client.core.communication.request.Wrapper; |
| import org.apache.olingo.client.core.uri.URIUtils; |
| import org.apache.olingo.commons.api.format.ContentType; |
| import org.apache.olingo.commons.api.http.HttpMethod; |
| |
| /** |
| * Streamed OData request abstract class. |
| * |
| * @param <V> OData response type corresponding to the request implementation. |
| * @param <T> OData request payload type corresponding to the request implementation. |
| */ |
| public abstract class AbstractODataStreamedRequest<V extends ODataResponse, T extends ODataPayloadManager<V>> |
| extends AbstractODataRequest implements ODataStreamedRequest<V, T> { |
| |
| /** |
| * OData payload stream manager. |
| */ |
| protected ODataPayloadManager<V> payloadManager; |
| private static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8"); |
| private static final byte[] CRLF = {13, 10}; |
| |
| /** |
| * Wrapper for actual streamed request's future. This holds information about the HTTP request / response currently |
| * open. |
| */ |
| protected final Wrapper<Future<HttpResponse>> futureWrapper = new Wrapper<Future<HttpResponse>>(); |
| |
| /** |
| * Constructor. |
| * |
| * @param odataClient client instance getting this request |
| * @param method OData request HTTP method. |
| * @param uri OData request URI. |
| */ |
| public AbstractODataStreamedRequest(final ODataClient odataClient, |
| final HttpMethod method, final URI uri) { |
| |
| super(odataClient, method, uri); |
| setAccept(ContentType.APPLICATION_OCTET_STREAM.toContentTypeString()); |
| setContentType(ContentType.APPLICATION_OCTET_STREAM.toContentTypeString()); |
| } |
| |
| @Override |
| public ContentType getDefaultFormat() { |
| return odataClient.getConfiguration().getDefaultMediaFormat(); |
| } |
| |
| /** |
| * Gets OData request payload management object. |
| * |
| * @return OData request payload management object. |
| */ |
| protected abstract T getPayloadManager(); |
| |
| /** |
| * {@inheritDoc } |
| */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public T payloadManager() { |
| payloadManager = getPayloadManager(); |
| |
| if (URIUtils.shouldUseRepeatableHttpBodyEntry(odataClient)) { |
| futureWrapper.setWrapped(odataClient.getConfiguration().getExecutor().submit(new Callable<HttpResponse>() { |
| @Override |
| public HttpResponse call() throws Exception { //NOSONAR |
| ((HttpEntityEnclosingRequestBase) request).setEntity( |
| URIUtils.buildInputStreamEntity(odataClient, payloadManager.getBody())); |
| |
| return doExecute(); |
| } |
| })); |
| } else { |
| ((HttpEntityEnclosingRequestBase) request).setEntity( |
| URIUtils.buildInputStreamEntity(odataClient, payloadManager.getBody())); |
| |
| futureWrapper.setWrapped(odataClient.getConfiguration().getExecutor().submit(new Callable<HttpResponse>() { |
| @Override |
| public HttpResponse call() throws Exception { //NOSONAR |
| return doExecute(); |
| } |
| })); |
| } |
| |
| // returns the stream manager object |
| return (T) payloadManager; |
| } |
| |
| /** |
| * Writes (and consume) the request onto the given batch stream. |
| * <p> |
| * Please note that this method will consume the request (execution won't be possible anymore). |
| * |
| * @param req destination batch request. |
| */ |
| public void batch(final ODataBatchRequest req) { |
| batch(req, null); |
| } |
| |
| /** |
| * Writes (and consume) the request onto the given batch stream. |
| * <p> |
| * Please note that this method will consume the request (execution won't be possible anymore). |
| * |
| * @param req destination batch request. |
| * @param contentId ContentId header value to be added to the serialization. Use this in case of changeset items. |
| */ |
| public void batch(final ODataBatchRequest req, final String contentId) { |
| final InputStream input = getPayloadManager().getBody(); |
| |
| try { |
| // finalize the body |
| getPayloadManager().finalizeBody(); |
| |
| req.rawAppend(toByteArray()); |
| if (StringUtils.isNotBlank(contentId)) { |
| req.rawAppend((ODataBatchConstants.CHANGESET_CONTENT_ID_NAME + ": " + contentId).getBytes(DEFAULT_CHARSET)); |
| req.rawAppend(CRLF); |
| } |
| req.rawAppend(CRLF); |
| |
| try { |
| req.rawAppend(IOUtils.toByteArray(input)); |
| } catch (Exception e) { |
| LOG.debug("Invalid stream", e); |
| req.rawAppend(new byte[0]); |
| } |
| } catch (IOException e) { |
| throw new IllegalStateException(e); |
| } finally { |
| IOUtils.closeQuietly(input); |
| } |
| } |
| } |