75 lines
2.0 KiB
Java
75 lines
2.0 KiB
Java
/*
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* Copyright 2015 Christian Basler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.dissem.bitmessage.entity;
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import ch.dissem.bitmessage.entity.valueobject.InventoryVector;
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import ch.dissem.bitmessage.utils.Encode;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.LinkedList;
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import java.util.List;
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/**
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* The 'getdata' command is used to request objects from a node.
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*/
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public class GetData implements MessagePayload {
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List<InventoryVector> inventory;
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private GetData(Builder builder) {
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inventory = builder.inventory;
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}
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@Override
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public Command getCommand() {
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return Command.GETDATA;
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}
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public List<InventoryVector> getInventory() {
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return inventory;
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}
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@Override
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public void write(OutputStream out) throws IOException {
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Encode.varInt(inventory.size(), out);
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for (InventoryVector iv : inventory) {
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iv.write(out);
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}
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}
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public static final class Builder {
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private List<InventoryVector> inventory = new LinkedList<>();
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public Builder() {
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}
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public Builder addInventoryVector(InventoryVector inventoryVector) {
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this.inventory.add(inventoryVector);
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return this;
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}
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public Builder inventory(List<InventoryVector> inventory) {
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this.inventory = inventory;
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return this;
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}
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public GetData build() {
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return new GetData(this);
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}
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}
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}
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