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")));
}
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("------------------");
}
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;
}
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 'true', then the output is pretty printed. (optional)
* @param allowWatchBookmarks allowWatchBookmarks requests watch events with type
* \"BOOKMARK\". Servers that do not implement bookmarks may ignore this flag and
* bookmarks are sent at the server'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 \"next
* key\". 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 `continue` 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<V1NamespaceList>
* @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);
}
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