org.projectnessie.services.spi.ContentService Maven / Gradle / Ivy
/*
* Copyright (C) 2022 Dremio
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.projectnessie.services.spi;
import static org.projectnessie.model.Validation.HASH_OR_RELATIVE_COMMIT_SPEC_MESSAGE;
import static org.projectnessie.model.Validation.HASH_OR_RELATIVE_COMMIT_SPEC_REGEX;
import static org.projectnessie.model.Validation.REF_NAME_MESSAGE;
import static org.projectnessie.model.Validation.REF_NAME_REGEX;
import jakarta.annotation.Nullable;
import jakarta.validation.Valid;
import jakarta.validation.constraints.Pattern;
import jakarta.validation.constraints.Size;
import java.util.List;
import org.projectnessie.error.NessieContentNotFoundException;
import org.projectnessie.error.NessieNotFoundException;
import org.projectnessie.model.ContentKey;
import org.projectnessie.model.ContentResponse;
import org.projectnessie.model.GetMultipleContentsResponse;
import org.projectnessie.services.authz.AccessCheckException;
import org.projectnessie.versioned.RequestMeta;
/**
* Server-side interface to services managing the loading of content objects.
*
* Refer to the javadoc of corresponding client-facing interfaces in the {@code model} module for
* the meaning of various methods and their parameters.
*/
public interface ContentService {
/**
* Retrieves a single content object by its key.
*
* @param key the key of the content to retrieve
* @param namedRef name of the reference
* @param hashOnRef optional, ID of the commit or a commit specification
* @param withDocumentation unused, pass {@code false}
* @param requestMeta if {@code false}, "natural" read access checks will be performed. If {@code
* true}, update/create access checks will be performed in addition to the read access checks.
* @return the content response, if the content object exists
* @throws NessieNotFoundException if the content object or the reference does not exist
* @throws AccessCheckException if access checks fail. Note that if the content object does not
* exist and the access checks fail, an {@link AccessCheckException} will be thrown,
* not a {@link NessieContentNotFoundException}
*/
ContentResponse getContent(
@Valid ContentKey key,
@Valid @Nullable @Pattern(regexp = REF_NAME_REGEX, message = REF_NAME_MESSAGE)
String namedRef,
@Valid
@Nullable
@Pattern(
regexp = HASH_OR_RELATIVE_COMMIT_SPEC_REGEX,
message = HASH_OR_RELATIVE_COMMIT_SPEC_MESSAGE)
String hashOnRef,
boolean withDocumentation,
RequestMeta requestMeta)
throws NessieNotFoundException;
/**
* Retrieves a one or more content object by key.
*
* @param namedRef name of the reference
* @param hashOnRef optional, ID of the commit or a commit specification
* @param keys the keys of the content objects to retrieve
* @param withDocumentation unused, pass {@code false}
* @param requestMeta if {@code false}, "natural" read access checks will be performed. If {@code
* true}, update/create access checks will be performed in addition to the read access checks.
* @return the existing content objects
* @throws NessieNotFoundException if the reference does not exist
* @throws AccessCheckException if access checks fail. Note that if some access check fails, the
* function with throw an {@link AccessCheckException} and not return a result.
*/
GetMultipleContentsResponse getMultipleContents(
@Valid @Nullable @Pattern(regexp = REF_NAME_REGEX, message = REF_NAME_MESSAGE)
String namedRef,
@Valid
@Nullable
@Pattern(
regexp = HASH_OR_RELATIVE_COMMIT_SPEC_REGEX,
message = HASH_OR_RELATIVE_COMMIT_SPEC_MESSAGE)
String hashOnRef,
@Valid @Size @Size(min = 1) List keys,
boolean withDocumentation,
RequestMeta requestMeta)
throws NessieNotFoundException;
}