| /* |
| * Copyright (C) 2018, Google LLC. |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.eclipse.jgit.internal.transport.parser; |
| |
| import static java.util.Arrays.asList; |
| import static java.util.Collections.emptySet; |
| import static java.util.Collections.unmodifiableSet; |
| import static java.util.stream.Collectors.toSet; |
| |
| import java.util.Set; |
| |
| import org.eclipse.jgit.annotations.NonNull; |
| |
| /** |
| * In a push, the client sends a list of commands. The first command |
| * is special, as it can include a list of capabilities at its end. |
| * <p> |
| * For example: |
| * "oid oid name\0cap1 cap cap3" |
| * <p> |
| * Not to be confused with {@link FirstWant}, nor with the first line |
| * of the reference advertisement parsed by |
| * {@code BasePackConnection.readAdvertisedRefs}. |
| * <p> |
| * This class parses the inputted command line and holds the results: |
| * the actual command line and the capabilities. |
| */ |
| public final class FirstCommand { |
| private final String line; |
| private final Set<String> capabilities; |
| |
| /** |
| * Parse the first line of a receive-pack request. |
| * |
| * @param line |
| * line from the client. |
| * @return an instance of FirstCommand with capabilities parsed out |
| */ |
| @NonNull |
| public static FirstCommand fromLine(String line) { |
| int nul = line.indexOf('\0'); |
| if (nul < 0) { |
| return new FirstCommand(line, emptySet()); |
| } |
| Set<String> opts = |
| asList(line.substring(nul + 1).split(" ")) //$NON-NLS-1$ |
| .stream() |
| .collect(toSet()); |
| return new FirstCommand(line.substring(0, nul), unmodifiableSet(opts)); |
| } |
| |
| private FirstCommand(String line, Set<String> capabilities) { |
| this.line = line; |
| this.capabilities = capabilities; |
| } |
| |
| /** @return non-capabilities part of the line. */ |
| @NonNull |
| public String getLine() { |
| return line; |
| } |
| |
| /** @return capabilities parsed from the line, as an immutable set. */ |
| @NonNull |
| public Set<String> getCapabilities() { |
| return capabilities; |
| } |
| } |