Example usage for com.squareup.okhttp Response.Builder body

Introduction

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Prototype

ResponseBody body

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Usage

From source file:com.parse.ParseOkHttpClient.java

License:Open Source License

/**
 * For OKHttpClient, since it does not expose any interface for us to check the raw response
 * stream, we have to use OKHttp networkInterceptors. Instead of using our own interceptor list,
 * we use OKHttp inner interceptor list.
 * @param parseNetworkInterceptor//from ww  w  .j av  a  2s.co m
 */
@Override
/* package */ void addExternalInterceptor(final ParseNetworkInterceptor parseNetworkInterceptor) {
    okHttpClient.networkInterceptors().add(new Interceptor() {
        @Override
        public Response intercept(final Chain okHttpChain) throws IOException {
            Request okHttpRequest = okHttpChain.request();
            // Transfer OkHttpRequest to ParseHttpRequest
            final ParseHttpRequest parseRequest = getParseHttpRequest(okHttpRequest);
            // Capture OkHttpResponse
            final Capture<Response> okHttpResponseCapture = new Capture<>();
            final ParseHttpResponse parseResponse = parseNetworkInterceptor
                    .intercept(new ParseNetworkInterceptor.Chain() {
                        @Override
                        public ParseHttpRequest getRequest() {
                            return parseRequest;
                        }

                        @Override
                        public ParseHttpResponse proceed(ParseHttpRequest parseRequest) throws IOException {
                            // Use OKHttpClient to send request
                            Request okHttpRequest = ParseOkHttpClient.this.getRequest(parseRequest);
                            Response okHttpResponse = okHttpChain.proceed(okHttpRequest);
                            okHttpResponseCapture.set(okHttpResponse);
                            return getResponse(okHttpResponse);
                        }
                    });
            final Response okHttpResponse = okHttpResponseCapture.get();
            // Ideally we should build newOkHttpResponse only based on parseResponse, however
            // ParseHttpResponse does not have all the info we need to build the newOkHttpResponse, so
            // we rely on the okHttpResponse to generate the builder and change the necessary info
            // inside
            Response.Builder newOkHttpResponseBuilder = okHttpResponse.newBuilder();
            // Set status
            newOkHttpResponseBuilder.code(parseResponse.getStatusCode())
                    .message(parseResponse.getReasonPhrase());
            // Set headers
            if (parseResponse.getAllHeaders() != null) {
                for (Map.Entry<String, String> entry : parseResponse.getAllHeaders().entrySet()) {
                    newOkHttpResponseBuilder.header(entry.getKey(), entry.getValue());
                }
            }
            // Set body
            newOkHttpResponseBuilder.body(new ResponseBody() {
                @Override
                public MediaType contentType() {
                    if (parseResponse.getContentType() == null) {
                        return null;
                    }
                    return MediaType.parse(parseResponse.getContentType());
                }

                @Override
                public long contentLength() throws IOException {
                    return parseResponse.getTotalSize();
                }

                @Override
                public BufferedSource source() throws IOException {
                    // We need to use the proxy stream from interceptor to replace the origin network
                    // stream, so when the stream is read by Parse, the network stream is proxyed in the
                    // interceptor.
                    if (parseResponse.getContent() == null) {
                        return null;
                    }
                    return Okio.buffer(Okio.source(parseResponse.getContent()));
                }
            });

            return newOkHttpResponseBuilder.build();
        }
    });
}

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