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Example 6 with V1NamespaceList

use of io.kubernetes.client.openapi.models.V1NamespaceList in project java by kubernetes-client.

the class PagerTest method testPaginationForNamespaceListWithSuccessThreadSafely.

@Test
public void testPaginationForNamespaceListWithSuccessThreadSafely() throws IOException {
    String namespaceListPage1Str = new String(Files.readAllBytes(Paths.get(LIST_PAGE1_FILE_PATH)));
    String namespaceListPage2Str = new String(Files.readAllBytes(Paths.get(LIST_PAGE2_FILE_PATH)));
    CoreV1Api api = new CoreV1Api(client);
    stubFor(get(urlPathEqualTo("/api/v1/namespaces")).withQueryParam("limit", equalTo("1")).willReturn(aResponse().withStatus(200).withHeader("Content-Type", "application/json").withBody(namespaceListPage1Str)));
    stubFor(get(urlPathEqualTo("/api/v1/namespaces")).withQueryParam("limit", equalTo("1")).withQueryParam("continue", equalTo("c1")).willReturn(aResponse().withStatus(200).withHeader("Content-Type", "application/json").withBody(namespaceListPage2Str)));
    int threads = 10;
    CountDownLatch latch = new CountDownLatch(threads);
    ExecutorService service = Executors.newFixedThreadPool(threads);
    Pager<V1Namespace, V1NamespaceList> pager = new Pager<V1Namespace, V1NamespaceList>((Pager.PagerParams param) -> {
        try {
            return api.listNamespaceCall(null, null, param.getContinueToken(), null, null, param.getLimit(), null, null, null, null, null);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }, client, 1, V1NamespaceList.class);
    for (int i = 0; i < threads; i++) {
        service.submit(() -> {
            int size = 0;
            for (V1Namespace namespace : pager) {
                assertEquals("default", namespace.getMetadata().getName());
                size++;
            }
            assertEquals(2, size);
            latch.countDown();
        });
    }
    try {
        latch.await(5, TimeUnit.SECONDS);
    } catch (InterruptedException e) {
        fail("timed out waiting for pager finished");
    }
    verify(2 * threads, getRequestedFor(urlPathEqualTo("/api/v1/namespaces")).withQueryParam("limit", equalTo("1")));
}
Also used : V1NamespaceList(io.kubernetes.client.openapi.models.V1NamespaceList) CountDownLatch(java.util.concurrent.CountDownLatch) IOException(java.io.IOException) ExecutorService(java.util.concurrent.ExecutorService) V1Namespace(io.kubernetes.client.openapi.models.V1Namespace) CoreV1Api(io.kubernetes.client.openapi.apis.CoreV1Api) Test(org.junit.Test)

Example 7 with V1NamespaceList

use of io.kubernetes.client.openapi.models.V1NamespaceList in project java by kubernetes-client.

the class PagerExample method main.

public static void main(String[] args) throws IOException {
    ApiClient client = Config.defaultClient();
    OkHttpClient httpClient = client.getHttpClient().newBuilder().readTimeout(60, TimeUnit.SECONDS).build();
    client.setHttpClient(httpClient);
    Configuration.setDefaultApiClient(client);
    CoreV1Api api = new CoreV1Api();
    int i = 0;
    Pager<V1Namespace, V1NamespaceList> pager = new Pager<V1Namespace, V1NamespaceList>((Pager.PagerParams param) -> {
        try {
            return api.listNamespaceCall(null, null, param.getContinueToken(), null, null, param.getLimit(), null, null, 1, null, null);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }, client, 10, V1NamespaceList.class);
    for (V1Namespace namespace : pager) {
        System.out.println(namespace.getMetadata().getName());
    }
    System.out.println("------------------");
}
Also used : V1NamespaceList(io.kubernetes.client.openapi.models.V1NamespaceList) OkHttpClient(okhttp3.OkHttpClient) Pager(io.kubernetes.client.extended.pager.Pager) V1Namespace(io.kubernetes.client.openapi.models.V1Namespace) ApiClient(io.kubernetes.client.openapi.ApiClient) CoreV1Api(io.kubernetes.client.openapi.apis.CoreV1Api) IOException(java.io.IOException)

Example 8 with V1NamespaceList

use of io.kubernetes.client.openapi.models.V1NamespaceList in project java by kubernetes-client.

the class ExpandedExample method getAllNameSpaces.

/**
 * Get all namespaces in k8s cluster
 *
 * @return
 * @throws ApiException
 */
public static List<String> getAllNameSpaces() throws ApiException {
    V1NamespaceList listNamespace = COREV1_API.listNamespace("true", null, null, null, null, 0, null, null, Integer.MAX_VALUE, Boolean.FALSE);
    List<String> list = listNamespace.getItems().stream().map(v1Namespace -> v1Namespace.getMetadata().getName()).collect(Collectors.toList());
    return list;
}
Also used : V1NamespaceList(io.kubernetes.client.openapi.models.V1NamespaceList) Logger(org.slf4j.Logger) V1DeploymentList(io.kubernetes.client.openapi.models.V1DeploymentList) LoggerFactory(org.slf4j.LoggerFactory) V1PodList(io.kubernetes.client.openapi.models.V1PodList) IOException(java.io.IOException) CoreV1Api(io.kubernetes.client.openapi.apis.CoreV1Api) Collectors(java.util.stream.Collectors) AppsV1Api(io.kubernetes.client.openapi.apis.AppsV1Api) Config(io.kubernetes.client.util.Config) ApiClient(io.kubernetes.client.openapi.ApiClient) ApiException(io.kubernetes.client.openapi.ApiException) List(java.util.List) Configuration(io.kubernetes.client.openapi.Configuration) V1DeploymentSpec(io.kubernetes.client.openapi.models.V1DeploymentSpec) Optional(java.util.Optional) V1Deployment(io.kubernetes.client.openapi.models.V1Deployment) V1ServiceList(io.kubernetes.client.openapi.models.V1ServiceList) V1NamespaceList(io.kubernetes.client.openapi.models.V1NamespaceList)

Example 9 with V1NamespaceList

use of io.kubernetes.client.openapi.models.V1NamespaceList in project java by kubernetes-client.

the class CoreV1Api method listNamespaceWithHttpInfo.

/**
 * list or watch objects of kind Namespace
 *
 * @param pretty If &#39;true&#39;, then the output is pretty printed. (optional)
 * @param allowWatchBookmarks allowWatchBookmarks requests watch events with type
 *     \&quot;BOOKMARK\&quot;. Servers that do not implement bookmarks may ignore this flag and
 *     bookmarks are sent at the server&#39;s discretion. Clients should not assume bookmarks are
 *     returned at any specific interval, nor may they assume the server will send any BOOKMARK
 *     event during a session. If this is not a watch, this field is ignored. (optional)
 * @param _continue The continue option should be set when retrieving more results from the
 *     server. Since this value is server defined, clients may only use the continue value from a
 *     previous query result with identical query parameters (except for the value of continue)
 *     and the server may reject a continue value it does not recognize. If the specified continue
 *     value is no longer valid whether due to expiration (generally five to fifteen minutes) or a
 *     configuration change on the server, the server will respond with a 410 ResourceExpired
 *     error together with a continue token. If the client needs a consistent list, it must
 *     restart their list without the continue field. Otherwise, the client may send another list
 *     request with the token received with the 410 error, the server will respond with a list
 *     starting from the next key, but from the latest snapshot, which is inconsistent from the
 *     previous list results - objects that are created, modified, or deleted after the first list
 *     request will be included in the response, as long as their keys are after the \&quot;next
 *     key\&quot;. This field is not supported when watch is true. Clients may start a watch from
 *     the last resourceVersion value returned by the server and not miss any modifications.
 *     (optional)
 * @param fieldSelector A selector to restrict the list of returned objects by their fields.
 *     Defaults to everything. (optional)
 * @param labelSelector A selector to restrict the list of returned objects by their labels.
 *     Defaults to everything. (optional)
 * @param limit limit is a maximum number of responses to return for a list call. If more items
 *     exist, the server will set the &#x60;continue&#x60; field on the list metadata to a value
 *     that can be used with the same initial query to retrieve the next set of results. Setting a
 *     limit may return fewer than the requested amount of items (up to zero items) in the event
 *     all requested objects are filtered out and clients should only use the presence of the
 *     continue field to determine whether more results are available. Servers may choose not to
 *     support the limit argument and will return all of the available results. If limit is
 *     specified and the continue field is empty, clients may assume that no more results are
 *     available. This field is not supported if watch is true. The server guarantees that the
 *     objects returned when using continue will be identical to issuing a single list call
 *     without a limit - that is, no objects created, modified, or deleted after the first request
 *     is issued will be included in any subsequent continued requests. This is sometimes referred
 *     to as a consistent snapshot, and ensures that a client that is using limit to receive
 *     smaller chunks of a very large result can ensure they see all possible objects. If objects
 *     are updated during a chunked list the version of the object that was present at the time
 *     the first list result was calculated is returned. (optional)
 * @param resourceVersion resourceVersion sets a constraint on what resource versions a request
 *     may be served from. See
 *     https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.
 *     Defaults to unset (optional)
 * @param resourceVersionMatch resourceVersionMatch determines how resourceVersion is applied to
 *     list calls. It is highly recommended that resourceVersionMatch be set for list calls where
 *     resourceVersion is set See
 *     https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details.
 *     Defaults to unset (optional)
 * @param timeoutSeconds Timeout for the list/watch call. This limits the duration of the call,
 *     regardless of any activity or inactivity. (optional)
 * @param watch Watch for changes to the described resources and return them as a stream of add,
 *     update, and remove notifications. Specify resourceVersion. (optional)
 * @return ApiResponse&lt;V1NamespaceList&gt;
 * @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the
 *     response body
 * @http.response.details
 *     <table summary="Response Details" border="1">
 * <tr><td> Status Code </td><td> Description </td><td> Response Headers </td></tr>
 * <tr><td> 200 </td><td> OK </td><td>  -  </td></tr>
 * <tr><td> 401 </td><td> Unauthorized </td><td>  -  </td></tr>
 * </table>
 */
public ApiResponse<V1NamespaceList> listNamespaceWithHttpInfo(String pretty, Boolean allowWatchBookmarks, String _continue, String fieldSelector, String labelSelector, Integer limit, String resourceVersion, String resourceVersionMatch, Integer timeoutSeconds, Boolean watch) throws ApiException {
    okhttp3.Call localVarCall = listNamespaceValidateBeforeCall(pretty, allowWatchBookmarks, _continue, fieldSelector, labelSelector, limit, resourceVersion, resourceVersionMatch, timeoutSeconds, watch, null);
    Type localVarReturnType = new TypeToken<V1NamespaceList>() {
    }.getType();
    return localVarApiClient.execute(localVarCall, localVarReturnType);
}
Also used : V1NamespaceList(io.kubernetes.client.openapi.models.V1NamespaceList) Type(java.lang.reflect.Type)

Aggregations

V1NamespaceList (io.kubernetes.client.openapi.models.V1NamespaceList)9 CoreV1Api (io.kubernetes.client.openapi.apis.CoreV1Api)6 V1Namespace (io.kubernetes.client.openapi.models.V1Namespace)6 IOException (java.io.IOException)6 Test (org.junit.Test)5 ApiClient (io.kubernetes.client.openapi.ApiClient)2 Type (java.lang.reflect.Type)2 Pager (io.kubernetes.client.extended.pager.Pager)1 ApiException (io.kubernetes.client.openapi.ApiException)1 Configuration (io.kubernetes.client.openapi.Configuration)1 AppsV1Api (io.kubernetes.client.openapi.apis.AppsV1Api)1 V1Deployment (io.kubernetes.client.openapi.models.V1Deployment)1 V1DeploymentList (io.kubernetes.client.openapi.models.V1DeploymentList)1 V1DeploymentSpec (io.kubernetes.client.openapi.models.V1DeploymentSpec)1 V1ObjectMeta (io.kubernetes.client.openapi.models.V1ObjectMeta)1 V1PodList (io.kubernetes.client.openapi.models.V1PodList)1 V1ServiceList (io.kubernetes.client.openapi.models.V1ServiceList)1 Config (io.kubernetes.client.util.Config)1 List (java.util.List)1 Optional (java.util.Optional)1