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org.openstack4j.openstack.internal.BaseOpenStackService Maven / Gradle / Ivy
package org.openstack4j.openstack.internal;
import java.util.*;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import org.openstack4j.api.client.CloudProvider;
import org.openstack4j.api.exceptions.OS4JException;
import org.openstack4j.api.types.ServiceType;
import org.openstack4j.core.transport.*;
import org.openstack4j.core.transport.HttpRequest.RequestBuilder;
import org.openstack4j.core.transport.internal.HttpExecutor;
import org.openstack4j.model.ModelEntity;
import org.openstack4j.model.common.ActionResponse;
import org.openstack4j.model.common.Payload;
import org.openstack4j.model.identity.AuthVersion;
import org.openstack4j.model.identity.v2.Access;
import org.openstack4j.model.identity.v3.Service;
import static org.openstack4j.core.transport.ClientConstants.HEADER_USER_AGENT;
import static org.openstack4j.core.transport.ClientConstants.USER_AGENT;
public class BaseOpenStackService {
private static ThreadLocal reqIdContainer = new ThreadLocal<>();
private ServiceType serviceType = ServiceType.IDENTITY;
private Function endpointFunc;
protected BaseOpenStackService() {
}
protected BaseOpenStackService(ServiceType serviceType) {
this(serviceType, null);
}
protected BaseOpenStackService(ServiceType serviceType, Function endpointFunc) {
this.serviceType = serviceType;
this.endpointFunc = endpointFunc;
}
public String getXOpenstackRequestId() {
return reqIdContainer.get();
}
protected Invocation get(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.GET);
}
protected Invocation getWithResponse(String... path) {
return builder(ActionResponse.class, path, HttpMethod.GET);
}
protected Invocation post(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.POST);
}
protected Invocation postWithResponse(String... path) {
return builder(ActionResponse.class, path, HttpMethod.POST);
}
protected Invocation put(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.PUT);
}
protected Invocation putWithResponse(String... path) {
return builder(ActionResponse.class, path, HttpMethod.PUT);
}
protected Invocation patch(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.PATCH);
}
protected Invocation patchWithResponse(String... path) {
return builder(ActionResponse.class, path, HttpMethod.PATCH);
}
protected Invocation delete(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.DELETE);
}
protected Invocation deleteWithResponse(String... path) {
return builder(ActionResponse.class, path, HttpMethod.DELETE);
}
protected Invocation head(Class returnType, String... path) {
return builder(returnType, path, HttpMethod.HEAD);
}
protected Invocation request(HttpMethod method, Class returnType, String path) {
return builder(returnType, path, method);
}
protected String uri(String path, Object... params) {
if (params.length == 0)
return path;
return String.format(path, params);
}
private Invocation builder(Class returnType, String[] path, HttpMethod method) {
return builder(returnType, Joiner.on("").join(path), method);
}
private Invocation builder(Class returnType, String path, HttpMethod method) {
OSClientSession ses = OSClientSession.getCurrent();
if (ses == null) {
throw new OS4JException(
"Unable to retrieve current session. Please verify thread has a current session available.");
}
RequestBuilder req = HttpRequest.builder(returnType).endpointTokenProvider(ses).config(ses.getConfig())
.method(method).path(path);
Map headers = ses.getHeaders();
if (headers != null && headers.size() > 0) {
return new Invocation<>(req, serviceType, endpointFunc).headers(headers);
} else {
return new Invocation<>(req, serviceType, endpointFunc);
}
}
protected int getServiceVersion() {
OSClientSession session = OSClientSession.getCurrent();
if (session.getAuthVersion() == AuthVersion.V3) {
SortedSet services = ((OSClientSession.OSClientSessionV3) session).getToken().getAggregatedCatalog().get(serviceType.getType());
Service service = ((OSClientSession.OSClientSessionV3) session).getToken().getAggregatedCatalog().get(serviceType.getType()).first();
if (services.isEmpty()) {
return 1;
}
return service.getVersion();
} else {
SortedSet services = ((OSClientSession.OSClientSessionV2) session).getAccess().getAggregatedCatalog().get(serviceType.getType());
Access.Service service = ((OSClientSession.OSClientSessionV2) session).getAccess().getAggregatedCatalog().get(serviceType.getType()).first();
if (services.isEmpty()) {
return 1;
}
return service.getVersion();
}
}
protected List toList(T[] arr) {
if (arr == null)
return Collections.emptyList();
return Arrays.asList(arr);
}
protected CloudProvider getProvider() {
return OSClientSession.getCurrent().getProvider();
}
protected static class Invocation {
RequestBuilder req;
protected Invocation(RequestBuilder req, ServiceType serviceType, Function endpointFunc) {
this.req = req;
req.serviceType(serviceType);
req.endpointFunction(endpointFunc);
}
public HttpRequest getRequest() {
return req.build();
}
public Invocation param(String name, Object value) {
req.queryParam(name, value);
return this;
}
public Invocation updateParam(String name, Object value) {
req.updateQueryParam(name, value);
return this;
}
public Invocation params(Map params) {
if (params != null) {
for (String name : params.keySet())
req.queryParam(name, params.get(name));
}
return this;
}
public Invocation param(boolean condition, String name, Object value) {
if (condition)
req.queryParam(name, value);
return this;
}
public Invocation paramLists(Map> params) {
if (params != null) {
for (Map.Entry> pair : params.entrySet())
for (Object value : pair.getValue())
req.queryParam(pair.getKey(), value);
}
return this;
}
public Invocation serviceType(ServiceType serviceType) {
req.serviceType(serviceType);
return this;
}
public Invocation entity(ModelEntity entity) {
req.entity(entity);
return this;
}
public Invocation entity(Payload entity) {
req.entity(entity);
req.contentType(ClientConstants.CONTENT_TYPE_OCTECT_STREAM);
return this;
}
public Invocation contentType(String contentType) {
req.contentType(contentType);
return this;
}
public Invocation json(String json) {
req.json(json);
return this;
}
public Invocation headers(Map headers) {
if (headers != null)
req.headers(headers);
return this;
}
public Invocation header(String name, Object value) {
req.header(name, value);
return this;
}
public R execute() {
return execute(null);
}
public R execute(ExecutionOptions options) {
header(HEADER_USER_AGENT, USER_AGENT);
HttpRequest request = req.build();
HttpResponse res = HttpExecutor.create().execute(request);
reqIdContainer.remove();
reqIdContainer.set(getRequestId(res));
return res.getEntity(request.getReturnType(), options);
}
public HttpResponse executeWithResponse() {
HttpResponse res = HttpExecutor.create().execute(req.build());
reqIdContainer.remove();
reqIdContainer.set(getRequestId(res));
return res;
}
private String getRequestId(HttpResponse res) {
if (res.headers().containsKey(ClientConstants.X_COMPUTE_REQUEST_ID)) {
return res.header(ClientConstants.X_COMPUTE_REQUEST_ID);
} else {
return res.header(ClientConstants.X_OPENSTACK_REQUEST_ID);
}
}
}
}
