Examples of com.fasterxml.jackson.databind.ObjectWriter

com.fasterxml.jackson.databind.ObjectWriter
Builder object that can be used for per-serialization configuration of serialization parameters, such as JSON View and root type to use. (and thus fully thread-safe with no external synchronization); new instances are constructed for different configurations. Instances are initially constructed by {@link ObjectMapper} and can bereused in completely thread-safe manner with no explicit synchronization

        long currentHash = _cluster.getHashOverState();
        resp.setClusterHash(currentHash);
        ClusterStatusMessage clusterStatus = (clusterHash == 0L || clusterHash != currentHash) ?
                _cluster.asMessage() : null;
        resp.setClusterStatus(clusterStatus);                
        final ObjectWriter w = useSmile ? _syncListSmileWriter : _syncListJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString() : ContentType.JSON.toString();
        
        return response.ok(new StreamingEntityImpl(w, resp))
                .setContentType(contentType);
    }

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        if (stats != null) {
            stats.setItemCount(listResponse.size());
        }
        
        final ObjectWriter w = useSmile ? _listSmileWriter : _listJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString()
                : ContentType.JSON.toString();
        return (OUT) response.ok(contentType, new StreamingEntityImpl(w, listResponse));
    }

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        ObjectMapper mapper = new ObjectMapper().setDateFormat(new SimpleDateFormat(DATE_FORMAT));


        //Can also use annotations for this
        mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);


        ObjectWriter writer = mapper.writer();


        Writer output = new StringWriter();


        try {
            writer.writeValue(output, object);
        } catch (IOException e) {
            log.error("Unable to serialize object to json", e);
        }


        return output.toString();

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        clusterStatus = (clusterHash == 0L || clusterHash != currentHash) ?
                _cluster.asMessage() : null;
        
        final SyncListResponse<E> resp = new SyncListResponse<E>(entries, timestamp.get(),
                currentHash, clusterStatus);
        final ObjectWriter w = useSmile ? _syncListSmileWriter : _syncListJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString() : ContentType.JSON.toString();
        
        return (OUT) response.ok(new StreamingEntityImpl(w, resp))
                .setContentType(contentType);
    }

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                }
                listResponse = new ListResponse.NameListResponse(names, _last(ids));
            }
            break;
        }
        final ObjectWriter w = useSmile ? _listSmileWriter : _listJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString()
                : ContentType.JSON.toString();
        return (OUT) response.ok(contentType, new StreamingEntityImpl(w, listResponse));
    }

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        if (stats != null) {
            stats.setItemCount(listResponse.size());
        }
        
        final ObjectWriter w = useSmile ? _listSmileWriter : _listJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString()
                : ContentType.JSON.toString();
        return (OUT) response.ok(contentType, new StreamingEntityImpl(w, listResponse));
    }

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        long currentHash = _cluster.getHashOverState();
        resp.setClusterHash(currentHash);
        ClusterStatusMessage clusterStatus = (clusterHash == 0L || clusterHash != currentHash) ?
                _cluster.asMessage() : null;
        resp.setClusterStatus(clusterStatus);                
        final ObjectWriter w = useSmile ? _syncListSmileWriter : _syncListJsonWriter;
        final String contentType = useSmile ? ContentType.SMILE.toString() : ContentType.JSON.toString();
        
        return (OUT) response.ok(new StreamingEntityImpl(w, resp))
                .setContentType(contentType);
    }

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    }


    @Override
    public void onCompleteResponse(HttpRequest request, HttpResponse httpResponse) {
        try {
            ObjectWriter writer = mapper.writerWithDefaultPrettyPrinter();
            Session targetSession = Session.newSession(request, httpResponse);
            writer.writeValue(this.file, prepareTargetSessions(targetSession));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

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    @Override
    public void writeFile(File path, List<ResultType> models) throws IOException {
        CsvSchema schema = mapper.schemaFor(resultType);
        System.out.println(schema.getColumnDesc());
        ObjectWriter writer = mapper.writer(schema);
        // supplying the file directly does not work.
        // java.lang.UnsupportedOperationException: Generator of type com.fasterxml.jackson.core.json.UTF8JsonGenerator
        // does not support schema of type 'CSV'
        writer.writeValue(new FileOutputStream(path), models);
    }

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                    rootType = null;
                }
            }
        }


        ObjectWriter writer;
        if (rootType != null) {
            writer = objectMapper.writerWithType(rootType);
        }
        else {
            writer = objectMapper.writer();
        }


        writer.writeValue(jsonGenerator, value);


        // add a newline so when you use curl it looks nice
        outputStream.write('\n');
    }

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