com.microsoft.azure.management.resources.FeaturesImpl.java Source code

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/**
 * 
 * Copyright (c) Microsoft and contributors.  All rights reserved.
 * 
 * Licensed 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.
 * 
 */

// Warning: This code was generated by a tool.
// 
// Changes to this file may cause incorrect behavior and will be lost if the
// code is regenerated.

package com.microsoft.azure.management.resources;

import com.microsoft.azure.management.resources.models.FeatureOperationsListResult;
import com.microsoft.azure.management.resources.models.FeatureProperties;
import com.microsoft.azure.management.resources.models.FeatureResponse;
import com.microsoft.windowsazure.core.ServiceOperations;
import com.microsoft.windowsazure.core.utils.CollectionStringBuilder;
import com.microsoft.windowsazure.exception.ServiceException;
import com.microsoft.windowsazure.tracing.CloudTracing;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.node.ArrayNode;
import org.codehaus.jackson.node.NullNode;

import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.concurrent.Callable;
import java.util.concurrent.Future;

/**
* Operations for managing preview features.
*/
public class FeaturesImpl implements ServiceOperations<FeatureClientImpl>, Features {
    /**
    * Initializes a new instance of the FeaturesImpl class.
    *
    * @param client Reference to the service client.
    */
    FeaturesImpl(FeatureClientImpl client) {
        this.client = client;
    }

    private FeatureClientImpl client;

    /**
    * Gets a reference to the
    * microsoft.azure.management.resources.FeatureClientImpl.
    * @return The Client value.
    */
    public FeatureClientImpl getClient() {
        return this.client;
    }

    /**
    * Get all features under the subscription.
    *
    * @param resourceProviderNamespace Required. Namespace of the resource
    * provider.
    * @param featureName Required. Previewed feature name in the resource
    * provider.
    * @return Previewed feature information.
    */
    @Override
    public Future<FeatureResponse> getAsync(final String resourceProviderNamespace, final String featureName) {
        return this.getClient().getExecutorService().submit(new Callable<FeatureResponse>() {
            @Override
            public FeatureResponse call() throws Exception {
                return get(resourceProviderNamespace, featureName);
            }
        });
    }

    /**
    * Get all features under the subscription.
    *
    * @param resourceProviderNamespace Required. Namespace of the resource
    * provider.
    * @param featureName Required. Previewed feature name in the resource
    * provider.
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return Previewed feature information.
    */
    @Override
    public FeatureResponse get(String resourceProviderNamespace, String featureName)
            throws IOException, ServiceException {
        // Validate
        if (resourceProviderNamespace == null) {
            throw new NullPointerException("resourceProviderNamespace");
        }
        if (featureName == null) {
            throw new NullPointerException("featureName");
        }

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            tracingParameters.put("resourceProviderNamespace", resourceProviderNamespace);
            tracingParameters.put("featureName", featureName);
            CloudTracing.enter(invocationId, this, "getAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + "/subscriptions/";
        if (this.getClient().getCredentials().getSubscriptionId() != null) {
            url = url + URLEncoder.encode(this.getClient().getCredentials().getSubscriptionId(), "UTF-8");
        }
        url = url + "/providers/Microsoft.Features/providers/";
        url = url + URLEncoder.encode(resourceProviderNamespace, "UTF-8");
        url = url + "/features/";
        url = url + URLEncoder.encode(featureName, "UTF-8");
        ArrayList<String> queryParameters = new ArrayList<String>();
        queryParameters.add("api-version=" + "2014-08-01-preview");
        if (queryParameters.size() > 0) {
            url = url + "?" + CollectionStringBuilder.join(queryParameters, "&");
        }
        String baseUrl = this.getClient().getBaseUri().toString();
        // Trim '/' character from the end of baseUrl and beginning of url.
        if (baseUrl.charAt(baseUrl.length() - 1) == '/') {
            baseUrl = baseUrl.substring(0, (baseUrl.length() - 1) + 0);
        }
        if (url.charAt(0) == '/') {
            url = url.substring(1);
        }
        url = baseUrl + "/" + url;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpGet httpRequest = new HttpGet(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureResponse result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureResponse();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode nameValue = responseDoc.get("name");
                    if (nameValue != null && nameValue instanceof NullNode == false) {
                        String nameInstance;
                        nameInstance = nameValue.getTextValue();
                        result.setName(nameInstance);
                    }

                    JsonNode propertiesValue = responseDoc.get("properties");
                    if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                        FeatureProperties propertiesInstance = new FeatureProperties();
                        result.setProperties(propertiesInstance);

                        JsonNode stateValue = propertiesValue.get("state");
                        if (stateValue != null && stateValue instanceof NullNode == false) {
                            String stateInstance;
                            stateInstance = stateValue.getTextValue();
                            propertiesInstance.setState(stateInstance);
                        }
                    }

                    JsonNode idValue = responseDoc.get("id");
                    if (idValue != null && idValue instanceof NullNode == false) {
                        String idInstance;
                        idInstance = idValue.getTextValue();
                        result.setId(idInstance);
                    }

                    JsonNode typeValue = responseDoc.get("type");
                    if (typeValue != null && typeValue instanceof NullNode == false) {
                        String typeInstance;
                        typeInstance = typeValue.getTextValue();
                        result.setType(typeInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }

    /**
    * Gets a list of previewed features of a resource provider.
    *
    * @param resourceProviderNamespace Required. The namespace of the resource
    * provider.
    * @return List of previewed features.
    */
    @Override
    public Future<FeatureOperationsListResult> listAsync(final String resourceProviderNamespace) {
        return this.getClient().getExecutorService().submit(new Callable<FeatureOperationsListResult>() {
            @Override
            public FeatureOperationsListResult call() throws Exception {
                return list(resourceProviderNamespace);
            }
        });
    }

    /**
    * Gets a list of previewed features of a resource provider.
    *
    * @param resourceProviderNamespace Required. The namespace of the resource
    * provider.
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return List of previewed features.
    */
    @Override
    public FeatureOperationsListResult list(String resourceProviderNamespace) throws IOException, ServiceException {
        // Validate
        if (resourceProviderNamespace == null) {
            throw new NullPointerException("resourceProviderNamespace");
        }

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            tracingParameters.put("resourceProviderNamespace", resourceProviderNamespace);
            CloudTracing.enter(invocationId, this, "listAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + "/subscriptions/";
        if (this.getClient().getCredentials().getSubscriptionId() != null) {
            url = url + URLEncoder.encode(this.getClient().getCredentials().getSubscriptionId(), "UTF-8");
        }
        url = url + "/providers/Microsoft.Features/providers/";
        url = url + URLEncoder.encode(resourceProviderNamespace, "UTF-8");
        url = url + "/features";
        ArrayList<String> queryParameters = new ArrayList<String>();
        queryParameters.add("api-version=" + "2014-08-01-preview");
        if (queryParameters.size() > 0) {
            url = url + "?" + CollectionStringBuilder.join(queryParameters, "&");
        }
        String baseUrl = this.getClient().getBaseUri().toString();
        // Trim '/' character from the end of baseUrl and beginning of url.
        if (baseUrl.charAt(baseUrl.length() - 1) == '/') {
            baseUrl = baseUrl.substring(0, (baseUrl.length() - 1) + 0);
        }
        if (url.charAt(0) == '/') {
            url = url.substring(1);
        }
        url = baseUrl + "/" + url;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpGet httpRequest = new HttpGet(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json; charset=utf-8");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureOperationsListResult result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureOperationsListResult();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode valueArray = responseDoc.get("value");
                    if (valueArray != null && valueArray instanceof NullNode == false) {
                        for (JsonNode valueValue : ((ArrayNode) valueArray)) {
                            FeatureResponse featureResponseInstance = new FeatureResponse();
                            result.getFeatures().add(featureResponseInstance);

                            JsonNode nameValue = valueValue.get("name");
                            if (nameValue != null && nameValue instanceof NullNode == false) {
                                String nameInstance;
                                nameInstance = nameValue.getTextValue();
                                featureResponseInstance.setName(nameInstance);
                            }

                            JsonNode propertiesValue = valueValue.get("properties");
                            if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                                FeatureProperties propertiesInstance = new FeatureProperties();
                                featureResponseInstance.setProperties(propertiesInstance);

                                JsonNode stateValue = propertiesValue.get("state");
                                if (stateValue != null && stateValue instanceof NullNode == false) {
                                    String stateInstance;
                                    stateInstance = stateValue.getTextValue();
                                    propertiesInstance.setState(stateInstance);
                                }
                            }

                            JsonNode idValue = valueValue.get("id");
                            if (idValue != null && idValue instanceof NullNode == false) {
                                String idInstance;
                                idInstance = idValue.getTextValue();
                                featureResponseInstance.setId(idInstance);
                            }

                            JsonNode typeValue = valueValue.get("type");
                            if (typeValue != null && typeValue instanceof NullNode == false) {
                                String typeInstance;
                                typeInstance = typeValue.getTextValue();
                                featureResponseInstance.setType(typeInstance);
                            }
                        }
                    }

                    JsonNode nextLinkValue = responseDoc.get("nextLink");
                    if (nextLinkValue != null && nextLinkValue instanceof NullNode == false) {
                        String nextLinkInstance;
                        nextLinkInstance = nextLinkValue.getTextValue();
                        result.setNextLink(nextLinkInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }

    /**
    * Gets a list of previewed features for all the providers in the current
    * subscription.
    *
    * @return List of previewed features.
    */
    @Override
    public Future<FeatureOperationsListResult> listAllAsync() {
        return this.getClient().getExecutorService().submit(new Callable<FeatureOperationsListResult>() {
            @Override
            public FeatureOperationsListResult call() throws Exception {
                return listAll();
            }
        });
    }

    /**
    * Gets a list of previewed features for all the providers in the current
    * subscription.
    *
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return List of previewed features.
    */
    @Override
    public FeatureOperationsListResult listAll() throws IOException, ServiceException {
        // Validate

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            CloudTracing.enter(invocationId, this, "listAllAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + "/subscriptions/";
        if (this.getClient().getCredentials().getSubscriptionId() != null) {
            url = url + URLEncoder.encode(this.getClient().getCredentials().getSubscriptionId(), "UTF-8");
        }
        url = url + "/providers/Microsoft.Features/features";
        ArrayList<String> queryParameters = new ArrayList<String>();
        queryParameters.add("api-version=" + "2014-08-01-preview");
        if (queryParameters.size() > 0) {
            url = url + "?" + CollectionStringBuilder.join(queryParameters, "&");
        }
        String baseUrl = this.getClient().getBaseUri().toString();
        // Trim '/' character from the end of baseUrl and beginning of url.
        if (baseUrl.charAt(baseUrl.length() - 1) == '/') {
            baseUrl = baseUrl.substring(0, (baseUrl.length() - 1) + 0);
        }
        if (url.charAt(0) == '/') {
            url = url.substring(1);
        }
        url = baseUrl + "/" + url;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpGet httpRequest = new HttpGet(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json; charset=utf-8");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureOperationsListResult result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureOperationsListResult();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode valueArray = responseDoc.get("value");
                    if (valueArray != null && valueArray instanceof NullNode == false) {
                        for (JsonNode valueValue : ((ArrayNode) valueArray)) {
                            FeatureResponse featureResponseInstance = new FeatureResponse();
                            result.getFeatures().add(featureResponseInstance);

                            JsonNode nameValue = valueValue.get("name");
                            if (nameValue != null && nameValue instanceof NullNode == false) {
                                String nameInstance;
                                nameInstance = nameValue.getTextValue();
                                featureResponseInstance.setName(nameInstance);
                            }

                            JsonNode propertiesValue = valueValue.get("properties");
                            if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                                FeatureProperties propertiesInstance = new FeatureProperties();
                                featureResponseInstance.setProperties(propertiesInstance);

                                JsonNode stateValue = propertiesValue.get("state");
                                if (stateValue != null && stateValue instanceof NullNode == false) {
                                    String stateInstance;
                                    stateInstance = stateValue.getTextValue();
                                    propertiesInstance.setState(stateInstance);
                                }
                            }

                            JsonNode idValue = valueValue.get("id");
                            if (idValue != null && idValue instanceof NullNode == false) {
                                String idInstance;
                                idInstance = idValue.getTextValue();
                                featureResponseInstance.setId(idInstance);
                            }

                            JsonNode typeValue = valueValue.get("type");
                            if (typeValue != null && typeValue instanceof NullNode == false) {
                                String typeInstance;
                                typeInstance = typeValue.getTextValue();
                                featureResponseInstance.setType(typeInstance);
                            }
                        }
                    }

                    JsonNode nextLinkValue = responseDoc.get("nextLink");
                    if (nextLinkValue != null && nextLinkValue instanceof NullNode == false) {
                        String nextLinkInstance;
                        nextLinkInstance = nextLinkValue.getTextValue();
                        result.setNextLink(nextLinkInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }

    /**
    * Gets a list of previewed features of a subscription.
    *
    * @param nextLink Required. NextLink from the previous successful call to
    * List operation.
    * @return List of previewed features.
    */
    @Override
    public Future<FeatureOperationsListResult> listAllNextAsync(final String nextLink) {
        return this.getClient().getExecutorService().submit(new Callable<FeatureOperationsListResult>() {
            @Override
            public FeatureOperationsListResult call() throws Exception {
                return listAllNext(nextLink);
            }
        });
    }

    /**
    * Gets a list of previewed features of a subscription.
    *
    * @param nextLink Required. NextLink from the previous successful call to
    * List operation.
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return List of previewed features.
    */
    @Override
    public FeatureOperationsListResult listAllNext(String nextLink) throws IOException, ServiceException {
        // Validate
        if (nextLink == null) {
            throw new NullPointerException("nextLink");
        }

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            tracingParameters.put("nextLink", nextLink);
            CloudTracing.enter(invocationId, this, "listAllNextAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + nextLink;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpGet httpRequest = new HttpGet(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json; charset=utf-8");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureOperationsListResult result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureOperationsListResult();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode valueArray = responseDoc.get("value");
                    if (valueArray != null && valueArray instanceof NullNode == false) {
                        for (JsonNode valueValue : ((ArrayNode) valueArray)) {
                            FeatureResponse featureResponseInstance = new FeatureResponse();
                            result.getFeatures().add(featureResponseInstance);

                            JsonNode nameValue = valueValue.get("name");
                            if (nameValue != null && nameValue instanceof NullNode == false) {
                                String nameInstance;
                                nameInstance = nameValue.getTextValue();
                                featureResponseInstance.setName(nameInstance);
                            }

                            JsonNode propertiesValue = valueValue.get("properties");
                            if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                                FeatureProperties propertiesInstance = new FeatureProperties();
                                featureResponseInstance.setProperties(propertiesInstance);

                                JsonNode stateValue = propertiesValue.get("state");
                                if (stateValue != null && stateValue instanceof NullNode == false) {
                                    String stateInstance;
                                    stateInstance = stateValue.getTextValue();
                                    propertiesInstance.setState(stateInstance);
                                }
                            }

                            JsonNode idValue = valueValue.get("id");
                            if (idValue != null && idValue instanceof NullNode == false) {
                                String idInstance;
                                idInstance = idValue.getTextValue();
                                featureResponseInstance.setId(idInstance);
                            }

                            JsonNode typeValue = valueValue.get("type");
                            if (typeValue != null && typeValue instanceof NullNode == false) {
                                String typeInstance;
                                typeInstance = typeValue.getTextValue();
                                featureResponseInstance.setType(typeInstance);
                            }
                        }
                    }

                    JsonNode nextLinkValue = responseDoc.get("nextLink");
                    if (nextLinkValue != null && nextLinkValue instanceof NullNode == false) {
                        String nextLinkInstance;
                        nextLinkInstance = nextLinkValue.getTextValue();
                        result.setNextLink(nextLinkInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }

    /**
    * Gets a list of previewed features of a resource provider.
    *
    * @param nextLink Required. NextLink from the previous successful call to
    * List operation.
    * @return List of previewed features.
    */
    @Override
    public Future<FeatureOperationsListResult> listNextAsync(final String nextLink) {
        return this.getClient().getExecutorService().submit(new Callable<FeatureOperationsListResult>() {
            @Override
            public FeatureOperationsListResult call() throws Exception {
                return listNext(nextLink);
            }
        });
    }

    /**
    * Gets a list of previewed features of a resource provider.
    *
    * @param nextLink Required. NextLink from the previous successful call to
    * List operation.
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return List of previewed features.
    */
    @Override
    public FeatureOperationsListResult listNext(String nextLink) throws IOException, ServiceException {
        // Validate
        if (nextLink == null) {
            throw new NullPointerException("nextLink");
        }

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            tracingParameters.put("nextLink", nextLink);
            CloudTracing.enter(invocationId, this, "listNextAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + nextLink;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpGet httpRequest = new HttpGet(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json; charset=utf-8");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureOperationsListResult result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureOperationsListResult();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode valueArray = responseDoc.get("value");
                    if (valueArray != null && valueArray instanceof NullNode == false) {
                        for (JsonNode valueValue : ((ArrayNode) valueArray)) {
                            FeatureResponse featureResponseInstance = new FeatureResponse();
                            result.getFeatures().add(featureResponseInstance);

                            JsonNode nameValue = valueValue.get("name");
                            if (nameValue != null && nameValue instanceof NullNode == false) {
                                String nameInstance;
                                nameInstance = nameValue.getTextValue();
                                featureResponseInstance.setName(nameInstance);
                            }

                            JsonNode propertiesValue = valueValue.get("properties");
                            if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                                FeatureProperties propertiesInstance = new FeatureProperties();
                                featureResponseInstance.setProperties(propertiesInstance);

                                JsonNode stateValue = propertiesValue.get("state");
                                if (stateValue != null && stateValue instanceof NullNode == false) {
                                    String stateInstance;
                                    stateInstance = stateValue.getTextValue();
                                    propertiesInstance.setState(stateInstance);
                                }
                            }

                            JsonNode idValue = valueValue.get("id");
                            if (idValue != null && idValue instanceof NullNode == false) {
                                String idInstance;
                                idInstance = idValue.getTextValue();
                                featureResponseInstance.setId(idInstance);
                            }

                            JsonNode typeValue = valueValue.get("type");
                            if (typeValue != null && typeValue instanceof NullNode == false) {
                                String typeInstance;
                                typeInstance = typeValue.getTextValue();
                                featureResponseInstance.setType(typeInstance);
                            }
                        }
                    }

                    JsonNode nextLinkValue = responseDoc.get("nextLink");
                    if (nextLinkValue != null && nextLinkValue instanceof NullNode == false) {
                        String nextLinkInstance;
                        nextLinkInstance = nextLinkValue.getTextValue();
                        result.setNextLink(nextLinkInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }

    /**
    * Registers for a previewed feature of a resource provider.
    *
    * @param resourceProviderNamespace Required. Namespace of the resource
    * provider.
    * @param featureName Required. Previewed feature name in the resource
    * provider.
    * @return Previewed feature information.
    */
    @Override
    public Future<FeatureResponse> registerAsync(final String resourceProviderNamespace, final String featureName) {
        return this.getClient().getExecutorService().submit(new Callable<FeatureResponse>() {
            @Override
            public FeatureResponse call() throws Exception {
                return register(resourceProviderNamespace, featureName);
            }
        });
    }

    /**
    * Registers for a previewed feature of a resource provider.
    *
    * @param resourceProviderNamespace Required. Namespace of the resource
    * provider.
    * @param featureName Required. Previewed feature name in the resource
    * provider.
    * @throws IOException Signals that an I/O exception of some sort has
    * occurred. This class is the general class of exceptions produced by
    * failed or interrupted I/O operations.
    * @throws ServiceException Thrown if an unexpected response is found.
    * @return Previewed feature information.
    */
    @Override
    public FeatureResponse register(String resourceProviderNamespace, String featureName)
            throws IOException, ServiceException {
        // Validate
        if (resourceProviderNamespace == null) {
            throw new NullPointerException("resourceProviderNamespace");
        }
        if (featureName == null) {
            throw new NullPointerException("featureName");
        }

        // Tracing
        boolean shouldTrace = CloudTracing.getIsEnabled();
        String invocationId = null;
        if (shouldTrace) {
            invocationId = Long.toString(CloudTracing.getNextInvocationId());
            HashMap<String, Object> tracingParameters = new HashMap<String, Object>();
            tracingParameters.put("resourceProviderNamespace", resourceProviderNamespace);
            tracingParameters.put("featureName", featureName);
            CloudTracing.enter(invocationId, this, "registerAsync", tracingParameters);
        }

        // Construct URL
        String url = "";
        url = url + "/subscriptions/";
        if (this.getClient().getCredentials().getSubscriptionId() != null) {
            url = url + URLEncoder.encode(this.getClient().getCredentials().getSubscriptionId(), "UTF-8");
        }
        url = url + "/providers/Microsoft.Features/providers/";
        url = url + URLEncoder.encode(resourceProviderNamespace, "UTF-8");
        url = url + "/features/";
        url = url + URLEncoder.encode(featureName, "UTF-8");
        url = url + "/register";
        ArrayList<String> queryParameters = new ArrayList<String>();
        queryParameters.add("api-version=" + "2014-08-01-preview");
        if (queryParameters.size() > 0) {
            url = url + "?" + CollectionStringBuilder.join(queryParameters, "&");
        }
        String baseUrl = this.getClient().getBaseUri().toString();
        // Trim '/' character from the end of baseUrl and beginning of url.
        if (baseUrl.charAt(baseUrl.length() - 1) == '/') {
            baseUrl = baseUrl.substring(0, (baseUrl.length() - 1) + 0);
        }
        if (url.charAt(0) == '/') {
            url = url.substring(1);
        }
        url = baseUrl + "/" + url;
        url = url.replace(" ", "%20");

        // Create HTTP transport objects
        HttpPost httpRequest = new HttpPost(url);

        // Set Headers
        httpRequest.setHeader("Content-Type", "application/json");

        // Send Request
        HttpResponse httpResponse = null;
        try {
            if (shouldTrace) {
                CloudTracing.sendRequest(invocationId, httpRequest);
            }
            httpResponse = this.getClient().getHttpClient().execute(httpRequest);
            if (shouldTrace) {
                CloudTracing.receiveResponse(invocationId, httpResponse);
            }
            int statusCode = httpResponse.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                ServiceException ex = ServiceException.createFromJson(httpRequest, null, httpResponse,
                        httpResponse.getEntity());
                if (shouldTrace) {
                    CloudTracing.error(invocationId, ex);
                }
                throw ex;
            }

            // Create Result
            FeatureResponse result = null;
            // Deserialize Response
            if (statusCode == HttpStatus.SC_OK) {
                InputStream responseContent = httpResponse.getEntity().getContent();
                result = new FeatureResponse();
                ObjectMapper objectMapper = new ObjectMapper();
                JsonNode responseDoc = null;
                String responseDocContent = IOUtils.toString(responseContent);
                if (responseDocContent == null == false && responseDocContent.length() > 0) {
                    responseDoc = objectMapper.readTree(responseDocContent);
                }

                if (responseDoc != null && responseDoc instanceof NullNode == false) {
                    JsonNode nameValue = responseDoc.get("name");
                    if (nameValue != null && nameValue instanceof NullNode == false) {
                        String nameInstance;
                        nameInstance = nameValue.getTextValue();
                        result.setName(nameInstance);
                    }

                    JsonNode propertiesValue = responseDoc.get("properties");
                    if (propertiesValue != null && propertiesValue instanceof NullNode == false) {
                        FeatureProperties propertiesInstance = new FeatureProperties();
                        result.setProperties(propertiesInstance);

                        JsonNode stateValue = propertiesValue.get("state");
                        if (stateValue != null && stateValue instanceof NullNode == false) {
                            String stateInstance;
                            stateInstance = stateValue.getTextValue();
                            propertiesInstance.setState(stateInstance);
                        }
                    }

                    JsonNode idValue = responseDoc.get("id");
                    if (idValue != null && idValue instanceof NullNode == false) {
                        String idInstance;
                        idInstance = idValue.getTextValue();
                        result.setId(idInstance);
                    }

                    JsonNode typeValue = responseDoc.get("type");
                    if (typeValue != null && typeValue instanceof NullNode == false) {
                        String typeInstance;
                        typeInstance = typeValue.getTextValue();
                        result.setType(typeInstance);
                    }
                }

            }
            result.setStatusCode(statusCode);
            if (httpResponse.getHeaders("x-ms-request-id").length > 0) {
                result.setRequestId(httpResponse.getFirstHeader("x-ms-request-id").getValue());
            }

            if (shouldTrace) {
                CloudTracing.exit(invocationId, result);
            }
            return result;
        } finally {
            if (httpResponse != null && httpResponse.getEntity() != null) {
                httpResponse.getEntity().getContent().close();
            }
        }
    }
}