/*
    * Copyright (C) 2008, Google Inc.
    * Copyright (C) 2009, Sasa Zivkov <sasa.zivkov@sap.com> and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
   */
  
  package org.eclipse.jgit.errors;
  
  import java.util.Map;
  
  import org.eclipse.jgit.internal.JGitText;
  import org.eclipse.jgit.lib.ObjectId;
  import org.eclipse.jgit.transport.URIish;
  
  /**
   * Indicates a base/common object was required, but is not found.
   */
  public class MissingBundlePrerequisiteException extends TransportException {
  	private static final long serialVersionUID = 1L;
  
  	private static String format(Map<ObjectId, String> missingCommits) {
  		final StringBuilder r = new StringBuilder();
  		r.append(JGitText.get().missingPrerequisiteCommits);
  		for (Map.Entry<ObjectId, String> e : missingCommits.entrySet()) {
  			r.append("\n  "); //$NON-NLS-1$
  			r.append(e.getKey().name());
  			if (e.getValue() != null)
  				r.append(" ").append(e.getValue()); //$NON-NLS-1$
  		}
  		return r.toString();
  	}
  
  	/**
  	 * Constructs a MissingBundlePrerequisiteException for a set of objects.
  	 *
  	 * @param uri
  	 *            URI used for transport
  	 * @param missingCommits
  	 *            the Map of the base/common object(s) we don't have. Keys are
  	 *            ids of the missing objects and values are short descriptions.
  	 */
  	public MissingBundlePrerequisiteException(final URIish uri,
  			final Map<ObjectId, String> missingCommits) {
  		super(uri, format(missingCommits));
  	}
  }