| package org.eclipse.aether.resolution; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import org.eclipse.aether.RepositorySystem; |
| import org.eclipse.aether.RepositorySystemSession; |
| import org.eclipse.aether.metadata.Metadata; |
| import org.eclipse.aether.transfer.MetadataNotFoundException; |
| |
| /** |
| * The result of a metadata resolution request. |
| * |
| * @see RepositorySystem#resolveMetadata(RepositorySystemSession, java.util.Collection) |
| */ |
| public final class MetadataResult |
| { |
| |
| private final MetadataRequest request; |
| |
| private Exception exception; |
| |
| private boolean updated; |
| |
| private Metadata metadata; |
| |
| /** |
| * Creates a new result for the specified request. |
| * |
| * @param request The resolution request, must not be {@code null}. |
| */ |
| public MetadataResult( MetadataRequest request ) |
| { |
| this.request = requireNonNull( request, "metadata request cannot be null" ); |
| } |
| |
| /** |
| * Gets the resolution request that was made. |
| * |
| * @return The resolution request, never {@code null}. |
| */ |
| public MetadataRequest getRequest() |
| { |
| return request; |
| } |
| |
| /** |
| * Gets the resolved metadata (if any). |
| * |
| * @return The resolved metadata or {@code null} if the resolution failed. |
| */ |
| public Metadata getMetadata() |
| { |
| return metadata; |
| } |
| |
| /** |
| * Sets the resolved metadata. |
| * |
| * @param metadata The resolved metadata, may be {@code null} if the resolution failed. |
| * @return This result for chaining, never {@code null}. |
| */ |
| public MetadataResult setMetadata( Metadata metadata ) |
| { |
| this.metadata = metadata; |
| return this; |
| } |
| |
| /** |
| * Records the specified exception while resolving the metadata. |
| * |
| * @param exception The exception to record, may be {@code null}. |
| * @return This result for chaining, never {@code null}. |
| */ |
| public MetadataResult setException( Exception exception ) |
| { |
| this.exception = exception; |
| return this; |
| } |
| |
| /** |
| * Gets the exception that occurred while resolving the metadata. |
| * |
| * @return The exception that occurred or {@code null} if none. |
| */ |
| public Exception getException() |
| { |
| return exception; |
| } |
| |
| /** |
| * Sets the updated flag for the metadata. |
| * |
| * @param updated {@code true} if the metadata was actually fetched from the remote repository during the |
| * resolution, {@code false} if the metadata was resolved from a locally cached copy. |
| * @return This result for chaining, never {@code null}. |
| */ |
| public MetadataResult setUpdated( boolean updated ) |
| { |
| this.updated = updated; |
| return this; |
| } |
| |
| /** |
| * Indicates whether the metadata was actually fetched from the remote repository or resolved from the local cache. |
| * If metadata has been locally cached during a previous resolution request and this local copy is still up-to-date |
| * according to the remote repository's update policy, no remote access is made. |
| * |
| * @return {@code true} if the metadata was actually fetched from the remote repository during the resolution, |
| * {@code false} if the metadata was resolved from a locally cached copy. |
| */ |
| public boolean isUpdated() |
| { |
| return updated; |
| } |
| |
| /** |
| * Indicates whether the requested metadata was resolved. Note that the metadata might have been successfully |
| * resolved (from the local cache) despite {@link #getException()} indicating a transfer error while trying to |
| * refetch the metadata from the remote repository. |
| * |
| * @return {@code true} if the metadata was resolved, {@code false} otherwise. |
| * @see Metadata#getFile() |
| */ |
| public boolean isResolved() |
| { |
| return getMetadata() != null && getMetadata().getFile() != null; |
| } |
| |
| /** |
| * Indicates whether the requested metadata is not present in the remote repository. |
| * |
| * @return {@code true} if the metadata is not present in the remote repository, {@code false} otherwise. |
| */ |
| public boolean isMissing() |
| { |
| return getException() instanceof MetadataNotFoundException; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return getMetadata() + ( isUpdated() ? " (updated)" : " (cached)" ); |
| } |
| |
| } |