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Use optionals for get by name and namespace

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This commit is contained in:
René Pfeuffer
2018-07-11 13:42:09 +02:00
parent de3848b662
commit 617b98c6f3
5 changed files with 31 additions and 22 deletions
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6
scm-core/src/main/java/sonia/scm/repository/RepositoryManager.java
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@@ -41,6 +41,7 @@ import sonia.scm.TypeManager;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.util.Collection;
import java.util.Optional;
//~--- JDK imports ------------------------------------------------------------
@@ -148,11 +149,10 @@ public interface RepositoryManager
@Override
public RepositoryHandler getHandler(String type);
default Repository getByNamespace(String namespace, String name) {
default Optional<Repository> getByNamespace(String namespace, String name) {
return getAll()
.stream()
.filter(r -> r.getName().equals(name) && r.getNamespace().equals(namespace))
.findFirst()
.orElse(null);
.findFirst();
}
}

5
scm-webapp/src/main/java/sonia/scm/api/v2/resources/IdResourceManagerAdapter.java
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@@ -7,6 +7,7 @@ import sonia.scm.PageResult;
import javax.ws.rs.core.Response;
import java.io.IOException;
import java.util.Optional;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
@@ -55,8 +56,8 @@ class IdResourceManagerAdapter<MODEL_OBJECT extends ModelObject,
return singleAdapter.delete(id);
}
private Supplier<MODEL_OBJECT> loadBy(String id) {
return () -> manager.get(id);
private Supplier<Optional<MODEL_OBJECT>> loadBy(String id) {
return () -> Optional.ofNullable(manager.get(id));
}
private Predicate<MODEL_OBJECT> idStaysTheSame(String id) {

3
scm-webapp/src/main/java/sonia/scm/api/v2/resources/RepositoryResource.java
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@@ -18,6 +18,7 @@ import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.function.Supplier;
@@ -153,7 +154,7 @@ public class RepositoryResource {
return permissionRootResource.get();
}
private Supplier<Repository> loadBy(String namespace, String name) {
private Supplier<Optional<Repository>> loadBy(String namespace, String name) {
return () -> manager.getByNamespace(namespace, name);
}

32
scm-webapp/src/main/java/sonia/scm/api/v2/resources/SingleResourceManagerAdapter.java
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@@ -8,6 +8,7 @@ import sonia.scm.api.rest.resources.AbstractManagerResource;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.Response;
import java.util.Collection;
import java.util.Optional;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
@@ -38,34 +39,35 @@ class SingleResourceManagerAdapter<MODEL_OBJECT extends ModelObject,
* Reads the model object for the given id, transforms it to a dto and returns a corresponding http response.
* This handles all corner cases, eg. no matching object for the id or missing privileges.
*/
Response get(Supplier<MODEL_OBJECT> reader, Function<MODEL_OBJECT, DTO> mapToDto) {
MODEL_OBJECT modelObject = reader.get();
if (modelObject == null) {
return Response.status(Response.Status.NOT_FOUND).build();
}
DTO dto = mapToDto.apply(modelObject);
return Response.ok(dto).build();
Response get(Supplier<Optional<MODEL_OBJECT>> reader, Function<MODEL_OBJECT, DTO> mapToDto) {
return reader.get()
.map(mapToDto)
.map(Response::ok)
.map(Response.ResponseBuilder::build)
.orElse(Response.status(Response.Status.NOT_FOUND).build());
}
/**
* Update the model object for the given id according to the given function and returns a corresponding http response.
* This handles all corner cases, eg. no matching object for the id or missing privileges.
*/
public Response update(Supplier<MODEL_OBJECT> reader, Function<MODEL_OBJECT, MODEL_OBJECT> applyChanges, Predicate<MODEL_OBJECT> hasSameKey) {
MODEL_OBJECT existingModelObject = reader.get();
if (existingModelObject == null) {
public Response update(Supplier<Optional<MODEL_OBJECT>> reader, Function<MODEL_OBJECT, MODEL_OBJECT> applyChanges, Predicate<MODEL_OBJECT> hasSameKey) {
Optional<MODEL_OBJECT> existingModelObject = reader.get();
if (!existingModelObject.isPresent()) {
return Response.status(Response.Status.NOT_FOUND).build();
}
MODEL_OBJECT changedModelObject = applyChanges.apply(existingModelObject);
MODEL_OBJECT changedModelObject = applyChanges.apply(existingModelObject.get());
if (!hasSameKey.test(changedModelObject)) {
return Response.status(BAD_REQUEST).entity("illegal change of id").build();
}
return update(getId(existingModelObject), changedModelObject);
return update(getId(existingModelObject.get()), changedModelObject);
}
public Response delete(Supplier<MODEL_OBJECT> reader) {
MODEL_OBJECT existingModelObject = reader.get();
return delete(existingModelObject.getId());
public Response delete(Supplier<Optional<MODEL_OBJECT>> reader) {
return reader.get()
.map(MODEL_OBJECT::getId)
.map(this::delete)
.orElse(null);
}
@Override

7
scm-webapp/src/test/java/sonia/scm/api/v2/resources/RepositoryRootResourceTest.java
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@@ -25,6 +25,8 @@ import java.net.URISyntaxException;
import java.net.URL;
import static java.util.Collections.singletonList;
import static java.util.Optional.empty;
import static java.util.Optional.of;
import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;
import static javax.servlet.http.HttpServletResponse.SC_NO_CONTENT;
@@ -33,6 +35,7 @@ import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyObject;
import static org.mockito.Matchers.anyString;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
@@ -74,6 +77,7 @@ public class RepositoryRootResourceTest {
@Test
public void shouldFailForNotExistingRepository() throws URISyntaxException {
when(repositoryManager.getByNamespace(anyString(), anyString())).thenReturn(empty());
mockRepository("space", "repo");
MockHttpRequest request = MockHttpRequest.get("/" + RepositoryRootResource.REPOSITORIES_PATH_V2 + "space/other");
@@ -115,6 +119,7 @@ public class RepositoryRootResourceTest {
public void shouldHandleUpdateForNotExistingRepository() throws URISyntaxException, IOException {
URL url = Resources.getResource("sonia/scm/api/v2/repository-test-update.json");
byte[] repository = Resources.toByteArray(url);
when(repositoryManager.getByNamespace(anyString(), anyString())).thenReturn(empty());
MockHttpRequest request = MockHttpRequest
.put("/" + RepositoryRootResource.REPOSITORIES_PATH_V2 + "space/repo")
@@ -212,7 +217,7 @@ public class RepositoryRootResourceTest {
repository.setName(name);
String id = namespace + "-" + name;
repository.setId(id);
when(repositoryManager.getByNamespace(namespace, name)).thenReturn(repository);
when(repositoryManager.getByNamespace(namespace, name)).thenReturn(of(repository));
when(repositoryManager.get(id)).thenReturn(repository);
return repository;
}