com.telekom.m2m.cot.restsdk.devicecontrol.BulkOperationCollection Maven / Gradle / Ivy

Go to download
package com.telekom.m2m.cot.restsdk.devicecontrol;

import java.util.stream.StreamSupport;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.telekom.m2m.cot.restsdk.CloudOfThingsRestClient;
import com.telekom.m2m.cot.restsdk.util.ExtensibleObject;
import com.telekom.m2m.cot.restsdk.util.Filter;
import com.telekom.m2m.cot.restsdk.util.JsonArrayPagination;

/**
 * Represents a pageable BulkOperation collection.
 * 
 * Collection can be scrolled with next() and prev().
 * 

 *
 * @since 0.6.0
 * Created by Andreas Dyck on 04.09.17.
 */
public class BulkOperationCollection extends JsonArrayPagination {

    private static final String CONTENT_TYPE_BULK_OPERATION_COLLECTION = "application/vnd.com.nsn.cumulocity.bulkOperationCollection+json;charset=UTF-8;ver=0.9";
    private static final String BULK_OPERATION_COLLECTION_ELEMENT_NAME = "bulkOperations";

    /**
     * Creates an BulkOperationCollection.
     * Use {@link DeviceControlApi} to get BulkOperationCollection.
     *
     * @param cloudOfThingsRestClient the necessary REST client to send requests to the CoT.
     * @param relativeApiUrl          relative url of the REST API without leading slash.
     * @param gson                    the necessary json De-/serializer.
     * @param filterBuilder           the build criteria or null if all items should be retrieved.
     * @param pageSize                max number of retrieved elements per page.
     */
    BulkOperationCollection(final CloudOfThingsRestClient cloudOfThingsRestClient,
                            final String relativeApiUrl,
                            final Gson gson,
                            final Filter.FilterBuilder filterBuilder,
                            final int pageSize) {
        super(cloudOfThingsRestClient, relativeApiUrl, gson, CONTENT_TYPE_BULK_OPERATION_COLLECTION, BULK_OPERATION_COLLECTION_ELEMENT_NAME, filterBuilder, pageSize);
    }

    /**
     * Retrieves the current page.
     * 
     * Retrieves the BulkOperations influenced by filters set in construction.
     *
     * @return array of found BulkOperations
     */
    public BulkOperation[] getBulkOperations() {
        final JsonArray jsonBulkOperations = getJsonArray();

        return (jsonBulkOperations == null) ? new BulkOperation[0] : StreamSupport.stream(jsonBulkOperations.spliterator(), false).
                map(bulkOperation -> new BulkOperation(gson.fromJson(bulkOperation.getAsJsonObject(), ExtensibleObject.class))).
                toArray(BulkOperation[]::new);
    }
}