--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2010, 2012 Sonatype, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.aether.resolution;
+
+import org.eclipse.aether.RepositorySystem;
+import org.eclipse.aether.RepositorySystemSession;
+import org.eclipse.aether.RequestTrace;
+import org.eclipse.aether.metadata.Metadata;
+import org.eclipse.aether.repository.RemoteRepository;
+
+/**
+ * A request to resolve metadata from either a remote repository or the local repository.
+ *
+ * @see RepositorySystem#resolveMetadata(RepositorySystemSession, java.util.Collection)
+ * @see Metadata#getFile()
+ */
+public final class MetadataRequest
+{
+
+ private Metadata metadata;
+
+ private RemoteRepository repository;
+
+ private String context = "";
+
+ private boolean deleteLocalCopyIfMissing;
+
+ private boolean favorLocalRepository;
+
+ private RequestTrace trace;
+
+ /**
+ * Creates an uninitialized request.
+ */
+ public MetadataRequest()
+ {
+ // enables default constructor
+ }
+
+ /**
+ * Creates a request to resolve the specified metadata from the local repository.
+ *
+ * @param metadata The metadata to resolve, may be {@code null}.
+ */
+ public MetadataRequest( Metadata metadata )
+ {
+ setMetadata( metadata );
+ }
+
+ /**
+ * Creates a request with the specified properties.
+ *
+ * @param metadata The metadata to resolve, may be {@code null}.
+ * @param repository The repository to resolve the metadata from, may be {@code null} to resolve from the local
+ * repository.
+ * @param context The context in which this request is made, may be {@code null}.
+ */
+ public MetadataRequest( Metadata metadata, RemoteRepository repository, String context )
+ {
+ setMetadata( metadata );
+ setRepository( repository );
+ setRequestContext( context );
+ }
+
+ /**
+ * Gets the metadata to resolve.
+ *
+ * @return The metadata or {@code null} if not set.
+ */
+ public Metadata getMetadata()
+ {
+ return metadata;
+ }
+
+ /**
+ * Sets the metadata to resolve.
+ *
+ * @param metadata The metadata, may be {@code null}.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setMetadata( Metadata metadata )
+ {
+ this.metadata = metadata;
+ return this;
+ }
+
+ /**
+ * Gets the repository from which the metadata should be resolved.
+ *
+ * @return The repository or {@code null} to resolve from the local repository.
+ */
+ public RemoteRepository getRepository()
+ {
+ return repository;
+ }
+
+ /**
+ * Sets the repository from which the metadata should be resolved.
+ *
+ * @param repository The repository, may be {@code null} to resolve from the local repository.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setRepository( RemoteRepository repository )
+ {
+ this.repository = repository;
+ return this;
+ }
+
+ /**
+ * Gets the context in which this request is made.
+ *
+ * @return The context, never {@code null}.
+ */
+ public String getRequestContext()
+ {
+ return context;
+ }
+
+ /**
+ * Sets the context in which this request is made.
+ *
+ * @param context The context, may be {@code null}.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setRequestContext( String context )
+ {
+ this.context = ( context != null ) ? context : "";
+ return this;
+ }
+
+ /**
+ * Indicates whether the locally cached copy of the metadata should be removed if the corresponding file does not
+ * exist (any more) in the remote repository.
+ *
+ * @return {@code true} if locally cached metadata should be deleted if no corresponding remote file exists,
+ * {@code false} to keep the local copy.
+ */
+ public boolean isDeleteLocalCopyIfMissing()
+ {
+ return deleteLocalCopyIfMissing;
+ }
+
+ /**
+ * Controls whether the locally cached copy of the metadata should be removed if the corresponding file does not
+ * exist (any more) in the remote repository.
+ *
+ * @param deleteLocalCopyIfMissing {@code true} if locally cached metadata should be deleted if no corresponding
+ * remote file exists, {@code false} to keep the local copy.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setDeleteLocalCopyIfMissing( boolean deleteLocalCopyIfMissing )
+ {
+ this.deleteLocalCopyIfMissing = deleteLocalCopyIfMissing;
+ return this;
+ }
+
+ /**
+ * Indicates whether the metadata resolution should be suppressed if the corresponding metadata of the local
+ * repository is up-to-date according to the update policy of the remote repository. In this case, the metadata
+ * resolution will even be suppressed if no local copy of the remote metadata exists yet.
+ *
+ * @return {@code true} to suppress resolution of remote metadata if the corresponding metadata of the local
+ * repository is up-to-date, {@code false} to resolve the remote metadata normally according to the update
+ * policy.
+ */
+ public boolean isFavorLocalRepository()
+ {
+ return favorLocalRepository;
+ }
+
+ /**
+ * Controls resolution of remote metadata when already corresponding metadata of the local repository exists. In
+ * cases where the local repository's metadata is sufficient and going to be preferred, resolution of the remote
+ * metadata can be suppressed to avoid unnecessary network access.
+ *
+ * @param favorLocalRepository {@code true} to suppress resolution of remote metadata if the corresponding metadata
+ * of the local repository is up-to-date, {@code false} to resolve the remote metadata normally according
+ * to the update policy.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setFavorLocalRepository( boolean favorLocalRepository )
+ {
+ this.favorLocalRepository = favorLocalRepository;
+ return this;
+ }
+
+ /**
+ * Gets the trace information that describes the higher level request/operation in which this request is issued.
+ *
+ * @return The trace information about the higher level operation or {@code null} if none.
+ */
+ public RequestTrace getTrace()
+ {
+ return trace;
+ }
+
+ /**
+ * Sets the trace information that describes the higher level request/operation in which this request is issued.
+ *
+ * @param trace The trace information about the higher level operation, may be {@code null}.
+ * @return This request for chaining, never {@code null}.
+ */
+ public MetadataRequest setTrace( RequestTrace trace )
+ {
+ this.trace = trace;
+ return this;
+ }
+
+ @Override
+ public String toString()
+ {
+ return getMetadata() + " < " + getRepository();
+ }
+
+}