Java ContentProducer类代码示例

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP POST request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doPost(String url, final Map<String, String> headers,
                           final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpPost(url);
    setHeaders(headers, request);
    HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
    final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

    EntityTemplate ent = new EntityTemplate(new ContentProducer() {
        public void writeTo(OutputStream outputStream) throws IOException {
            OutputStream out = outputStream;
            if (zip) {
                out = new GZIPOutputStream(outputStream);
            }
            out.write(payload.getBytes());
            out.flush();
            out.close();
        }
    });
    ent.setContentType(contentType);
    if (zip) {
        ent.setContentEncoding("gzip");
    }
    entityEncReq.setEntity(ent);
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP PATCH request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doPatch(String url, final Map<String, String> headers,
                            final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpPatch(url);
    setHeaders(headers, request);
    HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
    final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

    EntityTemplate ent = new EntityTemplate(new ContentProducer() {
        public void writeTo(OutputStream outputStream) throws IOException {
            OutputStream out = outputStream;
            if (zip) {
                out = new GZIPOutputStream(outputStream);
            }
            out.write(payload.getBytes());
            out.flush();
            out.close();
        }
    });
    ent.setContentType(contentType);
    if (zip) {
        ent.setContentEncoding("gzip");
    }
    entityEncReq.setEntity(ent);
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP PUT request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doPut(String url, final Map<String, String> headers,
                          final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpPut(url);
    setHeaders(headers, request);
    HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
    final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

    EntityTemplate ent = new EntityTemplate(new ContentProducer() {
        public void writeTo(OutputStream outputStream) throws IOException {
            OutputStream out = outputStream;
            if (zip) {
                out = new GZIPOutputStream(outputStream);
            }
            out.write(payload.getBytes());
            out.flush();
            out.close();
        }
    });
    ent.setContentType(contentType);
    if (zip) {
        ent.setContentEncoding("gzip");
    }
    entityEncReq.setEntity(ent);
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
public void handle(
		final HttpRequest request, 
		final HttpResponse response,
		final HttpContext context) throws HttpException, IOException {

	final String method = request.getRequestLine().getMethod().toUpperCase(Locale.ENGLISH);
	if (!method.equals("GET") && !method.equals("HEAD")) {
		throw new MethodNotSupportedException(method + " method not supported"); 
	}

	final EntityTemplate body = new EntityTemplate(new ContentProducer() {
		public void writeTo(final OutputStream outstream) throws IOException {
			OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8"); 
			writer.write(mJSON);
			writer.flush();
		}
	});

	response.setStatusCode(HttpStatus.SC_OK);
	body.setContentType("text/json; charset=UTF-8");
	response.setEntity(body);

}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
public void handle(HttpRequest request, HttpResponse response, HttpContext arg2) throws HttpException, IOException {

			if (request.getRequestLine().getMethod().equals("POST")) {

				// Retrieve the POST content
				HttpEntityEnclosingRequest post = (HttpEntityEnclosingRequest) request;
				byte[] entityContent = EntityUtils.toByteArray(post.getEntity());
				String content = new String(entityContent, Charset.forName("UTF-8"));

				// Execute the request
				final String json = RequestHandler.handle(content);

				// Return the response
				EntityTemplate body = new EntityTemplate(new ContentProducer() {
					public void writeTo(final OutputStream outstream) throws IOException {
						OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8");
						writer.write(json);
						writer.flush();
					}
				});
				response.setStatusCode(HttpStatus.SC_OK);
				body.setContentType("application/json; charset=UTF-8");
				response.setEntity(body);
			}

		}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Wraps an XML writing into a ContentProducer for
 * lazy serialization.
 * @param doc the XML document to wrap.
 * @return The ContentProducer.
 */
public static ContentProducer toContentProducer(final Document doc) {
    return out -> {
        try {
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer transformer = tf.newTransformer();
            transformer.setOutputProperty(OutputKeys.METHOD, "xml");
            transformer.setOutputProperty(OutputKeys.ENCODING, UTF8);
            transformer.setOutputProperty(OutputKeys.INDENT, "no");
            transformer.transform(
                new DOMSource(doc), new StreamResult(out));
        } catch (TransformerException te) {
            throw new IOException(te);
        }
    };
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP POST request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doPost(String url, final Map<String, String> headers,
                           final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpPost(url);
    setHeaders(headers, request);
    HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
    final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

    EntityTemplate ent = new EntityTemplate(new ContentProducer() {
        public void writeTo(OutputStream outputStream) throws IOException {
            OutputStream out = outputStream;
            if (zip) {
                out = new GZIPOutputStream(outputStream);
            }
            out.write(payload.getBytes(Charset.defaultCharset()));
            out.flush();
            out.close();
        }
    });
    ent.setContentType(contentType);
    if (zip) {
        ent.setContentEncoding("gzip");
    }
    entityEncReq.setEntity(ent);
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP PUT request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doPut(String url, final Map<String, String> headers,
                          final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpPut(url);
    setHeaders(headers, request);
    HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
    final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

    EntityTemplate ent = new EntityTemplate(new ContentProducer() {
        public void writeTo(OutputStream outputStream) throws IOException {
            OutputStream out = outputStream;
            if (zip) {
                out = new GZIPOutputStream(outputStream);
            }
            out.write(payload.getBytes(Charset.defaultCharset()));
            out.flush();
            out.close();
        }
    });
    ent.setContentType(contentType);
    if (zip) {
        ent.setContentEncoding("gzip");
    }
    entityEncReq.setEntity(ent);
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
/**
 * Send a HTTP OPTIONS request to the specified URL
 *
 * @param url         Target endpoint URL
 * @param headers     Any HTTP headers that should be added to the request
 * @param payload     Content payload that should be sent
 * @param contentType Content-type of the request
 * @return Returned HTTP response
 * @throws IOException If an error occurs while making the invocation
 */
public HttpResponse doOptions(String url, final Map<String, String> headers,
                              final String payload, String contentType) throws IOException {
    HttpUriRequest request = new HttpOptions(url);
    setHeaders(headers, request);
    if(payload != null) {
        HttpEntityEnclosingRequest entityEncReq = (HttpEntityEnclosingRequest) request;
        final boolean zip = headers != null && "gzip".equals(headers.get(HttpHeaders.CONTENT_ENCODING));

        EntityTemplate ent = new EntityTemplate(new ContentProducer() {
            public void writeTo(OutputStream outputStream) throws IOException {
                OutputStream out = outputStream;
                if (zip) {
                    out = new GZIPOutputStream(outputStream);
                }
                out.write(payload.getBytes());
                out.flush();
                out.close();
            }
        });
        ent.setContentType(contentType);
        if (zip) {
            ent.setContentEncoding("gzip");
        }
        entityEncReq.setEntity(ent);
    }
    return client.execute(request);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
protected ContentProducer newContentProducer(String contentType, List docs) {
  if ("text/csv".equals(contentType)) {
    return new CsvContentProducer(docs);
  } else if (PIPELINE_DOC_TYPE.equals(contentType) || "application/json".equals(contentType)) {
    return new JacksonContentProducer(jsonObjectMapper, docs);
  } else {
    throw new IllegalArgumentException("Content type "+contentType+" not supported! Use text/csv or "+PIPELINE_DOC_TYPE);
  }
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
private ContentProducer toApacheContentProducer(RepeatableContentProducer repeatableContentProducer)
{
    return (OutputStream outputStream) -> {
        try (InputStream inputStream = repeatableContentProducer.getInputStream()) {
            copyLarge(inputStream, outputStream);
        }
    };
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
@Override
public void handle(HttpRequest request, HttpResponse response, HttpContext httpContext) throws HttpException, IOException {
	String contentType;
       Integer code;
       Uri uri = Uri.parse(request.getRequestLine().getUri());
       String fileUri = URLDecoder.decode(uri.getLastPathSegment());

       final byte[] r;
       byte[] resp;
       AssetManager mgr = context.getAssets();
       try {
           resp = Utility.loadInputStreamAsByte(mgr.open(fileUri));
           contentType = Utility.getMimeTypeForFile(fileUri);
           code = HttpStatus.OK.getCode();
       } catch (IOException e){
           resp = Utility.loadInputStreamAsByte(mgr.open("notfound.html"));
           contentType = Utility.MIME_TYPES.get("html");
           code = HttpStatus.NOT_FOUND.getCode();
       }
       r=resp;

       HttpEntity entity = new EntityTemplate(new ContentProducer() {
   		public void writeTo(final OutputStream outstream) throws IOException {
               outstream.write(r);
              }
   	});

	((EntityTemplate)entity).setContentType(contentType);
       response.setStatusCode(code);
	response.setEntity(entity);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
@Override
public void handle(HttpRequest request, HttpResponse response, HttpContext httpContext) throws HttpException, IOException {
       String contentType;
       Integer code;
       Uri uri = Uri.parse(request.getRequestLine().getUri());

       String folder;
       List<String> s = uri.getPathSegments();
       String path = File.separator;
       for(int i=1;i<s.size()-1;i++) {
           path+=s.get(i)+File.separator;
       }
       folder = path;
       final File file = new File(Utility.BLACKHOLE_PATH +folder+s.get(s.size()-1));

       final byte[] r;
       byte[] resp;
       if(file.exists()){
           resp = Utility.loadFileAsByte(file.getAbsolutePath());
           contentType = Utility.getMimeTypeForFile(file.getName());
           code = HttpStatus.OK.getCode();
       }else{
           AssetManager mgr = context.getAssets();
           resp = Utility.loadInputStreamAsByte(mgr.open("notfound.html"));
           contentType = Utility.MIME_TYPES.get("html");
           code = HttpStatus.NOT_FOUND.getCode();
       }
       r=resp;

       HttpEntity entity = new EntityTemplate(new ContentProducer() {
           public void writeTo(final OutputStream outstream) throws IOException {
               outstream.write(r);
           }
       });

       ((EntityTemplate)entity).setContentType(contentType);
       response.setStatusCode(code);
       response.addHeader(HttpHeader.CONTENT_DISPOSITION, "attachment");
       response.setEntity(entity);
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
public HttpEntity forgeResponse(){
    HttpEntity entity = new EntityTemplate(new ContentProducer() {
        public void writeTo(final OutputStream outstream) throws IOException {
            outstream.write(response);
        }
    });

    ((EntityTemplate)entity).setContentType(contentType);
    return entity;
}
 

import org.apache.http.entity.ContentProducer; //导入依赖的package包/类
protected ContentProducer newContentProducer(String contentType, List docs) {
  if ("text/csv".equals(contentType)) {
    return new CsvContentProducer(docs);
  } else if (JSON_CONTENT_TYPE.equals(contentType) || PIPELINE_DOC_CONTENT_TYPE.equals(contentType)) {
    return new JacksonContentProducer(jsonObjectMapper, docs);
  } else {
    throw new IllegalArgumentException("Content type "+contentType+
            " not supported! Use text/csv, application/json, or "+PIPELINE_DOC_CONTENT_TYPE);
  }
}