FetchV2Request.java
/*
* 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
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package org.eclipse.jgit.transport;
import static java.util.Objects.requireNonNull;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.jgit.annotations.NonNull;
import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.lib.ObjectId;
/**
* Fetch request from git protocol v2.
*
* <p>
* This is used as an input to {@link ProtocolV2Hook}.
*
* @since 5.1
*/
public final class FetchV2Request extends FetchRequest {
private final List<ObjectId> peerHas;
private final List<String> wantedRefs;
private final boolean doneReceived;
@NonNull
private final List<String> serverOptions;
FetchV2Request(@NonNull List<ObjectId> peerHas,
@NonNull List<String> wantedRefs,
@NonNull Set<ObjectId> wantIds,
@NonNull Set<ObjectId> clientShallowCommits, int deepenSince,
@NonNull List<String> deepenNotRefs, int depth,
long filterBlobLimit,
boolean doneReceived, @NonNull Set<String> clientCapabilities,
@Nullable String agent, @NonNull List<String> serverOptions) {
super(wantIds, depth, clientShallowCommits, filterBlobLimit,
clientCapabilities, deepenSince, deepenNotRefs, agent);
this.peerHas = requireNonNull(peerHas);
this.wantedRefs = requireNonNull(wantedRefs);
this.doneReceived = doneReceived;
this.serverOptions = requireNonNull(serverOptions);
}
/**
* @return object ids received in the "have" lines
*/
@NonNull
List<ObjectId> getPeerHas() {
return peerHas;
}
/**
* @return list of references received in "want-ref" lines
*/
@NonNull
List<String> getWantedRefs() {
return wantedRefs;
}
/**
* @return true if the request had a "done" line
*/
boolean wasDoneReceived() {
return doneReceived;
}
/**
* Options received in server-option lines. The caller can choose to act on
* these in an application-specific way
*
* @return Immutable list of server options received in the request
*
* @since 5.2
*/
@NonNull
public List<String> getServerOptions() {
return serverOptions;
}
/** @return A builder of {@link FetchV2Request}. */
static Builder builder() {
return new Builder();
}
/** A builder for {@link FetchV2Request}. */
static final class Builder {
final List<ObjectId> peerHas = new ArrayList<>();
final List<String> wantedRefs = new ArrayList<>();
final Set<ObjectId> wantIds = new HashSet<>();
final Set<ObjectId> clientShallowCommits = new HashSet<>();
final List<String> deepenNotRefs = new ArrayList<>();
final Set<String> clientCapabilities = new HashSet<>();
int depth;
int deepenSince;
long filterBlobLimit = -1;
boolean doneReceived;
@Nullable
String agent;
final List<String> serverOptions = new ArrayList<>();
private Builder() {
}
/**
* @param objectId
* object id received in a "have" line
* @return this builder
*/
Builder addPeerHas(ObjectId objectId) {
peerHas.add(objectId);
return this;
}
/**
* Ref received in "want-ref" line and the object-id it refers to
*
* @param refName
* reference name
* @return this builder
*/
Builder addWantedRef(String refName) {
wantedRefs.add(refName);
return this;
}
/**
* @param clientCapability
* capability line sent by the client
* @return this builder
*/
Builder addClientCapability(String clientCapability) {
clientCapabilities.add(clientCapability);
return this;
}
/**
* @param wantId
* object id received in a "want" line
* @return this builder
*/
Builder addWantId(ObjectId wantId) {
wantIds.add(wantId);
return this;
}
/**
* @param shallowOid
* object id received in a "shallow" line
* @return this builder
*/
Builder addClientShallowCommit(ObjectId shallowOid) {
clientShallowCommits.add(shallowOid);
return this;
}
/**
* @param d
* Depth received in a "deepen" line
* @return this builder
*/
Builder setDepth(int d) {
depth = d;
return this;
}
/**
* @return depth set in the request (via a "deepen" line). Defaulting to
* 0 if not set.
*/
int getDepth() {
return depth;
}
/**
* @return true if there has been at least one "deepen not" line in the
* request so far
*/
boolean hasDeepenNotRefs() {
return !deepenNotRefs.isEmpty();
}
/**
* @param deepenNotRef
* reference received in a "deepen not" line
* @return this builder
*/
Builder addDeepenNotRef(String deepenNotRef) {
deepenNotRefs.add(deepenNotRef);
return this;
}
/**
* @param value
* Unix timestamp received in a "deepen since" line
* @return this builder
*/
Builder setDeepenSince(int value) {
deepenSince = value;
return this;
}
/**
* @return shallow since value, sent before in a "deepen since" line. 0
* by default.
*/
int getDeepenSince() {
return deepenSince;
}
/**
* @param filterBlobLim
* set in a "filter" line
* @return this builder
*/
Builder setFilterBlobLimit(long filterBlobLim) {
filterBlobLimit = filterBlobLim;
return this;
}
/**
* Mark that the "done" line has been received.
*
* @return this builder
*/
Builder setDoneReceived() {
doneReceived = true;
return this;
}
/**
* Value of an agent line received after the command and before the
* arguments. E.g. "agent=a.b.c/1.0" should set "a.b.c/1.0".
*
* @param agentValue
* the client-supplied agent capability, without the leading
* "agent="
* @return this builder
*/
Builder setAgent(@Nullable String agentValue) {
agent = agentValue;
return this;
}
/**
* Records an application-specific option supplied in a server-option
* line, for later retrieval with
* {@link FetchV2Request#getServerOptions}.
*
* @param value
* the client-supplied server-option capability, without
* leading "server-option=".
* @return this builder
*/
Builder addServerOption(@NonNull String value) {
serverOptions.add(value);
return this;
}
/**
* @return Initialized fetch request
*/
FetchV2Request build() {
return new FetchV2Request(peerHas, wantedRefs, wantIds,
clientShallowCommits, deepenSince, deepenNotRefs,
depth, filterBlobLimit, doneReceived, clientCapabilities,
agent, Collections.unmodifiableList(serverOptions));
}
}
}