node-red-contrib-tak-registration
Version:
A Node-RED node to register to TAK and to help wrap files as datapackages to send to TAK
282 lines (262 loc) • 10 kB
JavaScript
import ItemBoundable from './ItemBoundable'
import hasInterface from '../../../../../hasInterface'
import ItemVisitor from '../ItemVisitor'
import AbstractNode from './AbstractNode'
import Collections from '../../../../../java/util/Collections'
import ArrayList from '../../../../../java/util/ArrayList'
import Serializable from '../../../../../java/io/Serializable'
import Assert from '../../util/Assert'
import List from '../../../../../java/util/List'
export default class AbstractSTRtree {
constructor() {
AbstractSTRtree.constructor_.apply(this, arguments)
}
static constructor_() {
this._root = null
this._built = false
this._itemBoundables = new ArrayList()
this._nodeCapacity = null
if (arguments.length === 0) {
AbstractSTRtree.constructor_.call(this, AbstractSTRtree.DEFAULT_NODE_CAPACITY)
} else if (arguments.length === 1) {
const nodeCapacity = arguments[0]
Assert.isTrue(nodeCapacity > 1, 'Node capacity must be greater than 1')
this._nodeCapacity = nodeCapacity
}
}
static compareDoubles(a, b) {
return a > b ? 1 : a < b ? -1 : 0
}
queryInternal() {
if (hasInterface(arguments[2], ItemVisitor) && (arguments[0] instanceof Object && arguments[1] instanceof AbstractNode)) {
const searchBounds = arguments[0], node = arguments[1], visitor = arguments[2]
const childBoundables = node.getChildBoundables()
for (let i = 0; i < childBoundables.size(); i++) {
const childBoundable = childBoundables.get(i)
if (!this.getIntersectsOp().intersects(childBoundable.getBounds(), searchBounds))
continue
if (childBoundable instanceof AbstractNode)
this.queryInternal(searchBounds, childBoundable, visitor)
else if (childBoundable instanceof ItemBoundable)
visitor.visitItem(childBoundable.getItem())
else
Assert.shouldNeverReachHere()
}
} else if (hasInterface(arguments[2], List) && (arguments[0] instanceof Object && arguments[1] instanceof AbstractNode)) {
const searchBounds = arguments[0], node = arguments[1], matches = arguments[2]
const childBoundables = node.getChildBoundables()
for (let i = 0; i < childBoundables.size(); i++) {
const childBoundable = childBoundables.get(i)
if (!this.getIntersectsOp().intersects(childBoundable.getBounds(), searchBounds))
continue
if (childBoundable instanceof AbstractNode)
this.queryInternal(searchBounds, childBoundable, matches)
else if (childBoundable instanceof ItemBoundable)
matches.add(childBoundable.getItem())
else
Assert.shouldNeverReachHere()
}
}
}
getNodeCapacity() {
return this._nodeCapacity
}
lastNode(nodes) {
return nodes.get(nodes.size() - 1)
}
size() {
if (arguments.length === 0) {
if (this.isEmpty())
return 0
this.build()
return this.size(this._root)
} else if (arguments.length === 1) {
const node = arguments[0]
let size = 0
for (let i = node.getChildBoundables().iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (childBoundable instanceof AbstractNode)
size += this.size(childBoundable)
else if (childBoundable instanceof ItemBoundable)
size += 1
}
return size
}
}
removeItem(node, item) {
let childToRemove = null
for (let i = node.getChildBoundables().iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (childBoundable instanceof ItemBoundable)
if (childBoundable.getItem() === item) childToRemove = childBoundable
}
if (childToRemove !== null) {
node.getChildBoundables().remove(childToRemove)
return true
}
return false
}
itemsTree() {
if (arguments.length === 0) {
this.build()
const valuesTree = this.itemsTree(this._root)
if (valuesTree === null) return new ArrayList()
return valuesTree
} else if (arguments.length === 1) {
const node = arguments[0]
const valuesTreeForNode = new ArrayList()
for (let i = node.getChildBoundables().iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (childBoundable instanceof AbstractNode) {
const valuesTreeForChild = this.itemsTree(childBoundable)
if (valuesTreeForChild !== null) valuesTreeForNode.add(valuesTreeForChild)
} else if (childBoundable instanceof ItemBoundable) {
valuesTreeForNode.add(childBoundable.getItem())
} else {
Assert.shouldNeverReachHere()
}
}
if (valuesTreeForNode.size() <= 0) return null
return valuesTreeForNode
}
}
insert(bounds, item) {
Assert.isTrue(!this._built, 'Cannot insert items into an STR packed R-tree after it has been built.')
this._itemBoundables.add(new ItemBoundable(bounds, item))
}
boundablesAtLevel() {
if (arguments.length === 1) {
const level = arguments[0]
const boundables = new ArrayList()
this.boundablesAtLevel(level, this._root, boundables)
return boundables
} else if (arguments.length === 3) {
const level = arguments[0], top = arguments[1], boundables = arguments[2]
Assert.isTrue(level > -2)
if (top.getLevel() === level) {
boundables.add(top)
return null
}
for (let i = top.getChildBoundables().iterator(); i.hasNext(); ) {
const boundable = i.next()
if (boundable instanceof AbstractNode) {
this.boundablesAtLevel(level, boundable, boundables)
} else {
Assert.isTrue(boundable instanceof ItemBoundable)
if (level === -1)
boundables.add(boundable)
}
}
return null
}
}
query() {
if (arguments.length === 1) {
const searchBounds = arguments[0]
this.build()
const matches = new ArrayList()
if (this.isEmpty())
return matches
if (this.getIntersectsOp().intersects(this._root.getBounds(), searchBounds))
this.queryInternal(searchBounds, this._root, matches)
return matches
} else if (arguments.length === 2) {
const searchBounds = arguments[0], visitor = arguments[1]
this.build()
if (this.isEmpty())
return null
if (this.getIntersectsOp().intersects(this._root.getBounds(), searchBounds))
this.queryInternal(searchBounds, this._root, visitor)
}
}
build() {
if (this._built) return null
this._root = this._itemBoundables.isEmpty() ? this.createNode(0) : this.createHigherLevels(this._itemBoundables, -1)
this._itemBoundables = null
this._built = true
}
getRoot() {
this.build()
return this._root
}
remove() {
if (arguments.length === 2) {
const searchBounds = arguments[0], item = arguments[1]
this.build()
if (this.getIntersectsOp().intersects(this._root.getBounds(), searchBounds))
return this.remove(searchBounds, this._root, item)
return false
} else if (arguments.length === 3) {
const searchBounds = arguments[0], node = arguments[1], item = arguments[2]
let found = this.removeItem(node, item)
if (found) return true
let childToPrune = null
for (let i = node.getChildBoundables().iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (!this.getIntersectsOp().intersects(childBoundable.getBounds(), searchBounds))
continue
if (childBoundable instanceof AbstractNode) {
found = this.remove(searchBounds, childBoundable, item)
if (found) {
childToPrune = childBoundable
break
}
}
}
if (childToPrune !== null)
if (childToPrune.getChildBoundables().isEmpty())
node.getChildBoundables().remove(childToPrune)
return found
}
}
createHigherLevels(boundablesOfALevel, level) {
Assert.isTrue(!boundablesOfALevel.isEmpty())
const parentBoundables = this.createParentBoundables(boundablesOfALevel, level + 1)
if (parentBoundables.size() === 1)
return parentBoundables.get(0)
return this.createHigherLevels(parentBoundables, level + 1)
}
depth() {
if (arguments.length === 0) {
if (this.isEmpty())
return 0
this.build()
return this.depth(this._root)
} else if (arguments.length === 1) {
const node = arguments[0]
let maxChildDepth = 0
for (let i = node.getChildBoundables().iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (childBoundable instanceof AbstractNode) {
const childDepth = this.depth(childBoundable)
if (childDepth > maxChildDepth) maxChildDepth = childDepth
}
}
return maxChildDepth + 1
}
}
createParentBoundables(childBoundables, newLevel) {
Assert.isTrue(!childBoundables.isEmpty())
const parentBoundables = new ArrayList()
parentBoundables.add(this.createNode(newLevel))
const sortedChildBoundables = new ArrayList(childBoundables)
Collections.sort(sortedChildBoundables, this.getComparator())
for (let i = sortedChildBoundables.iterator(); i.hasNext(); ) {
const childBoundable = i.next()
if (this.lastNode(parentBoundables).getChildBoundables().size() === this.getNodeCapacity())
parentBoundables.add(this.createNode(newLevel))
this.lastNode(parentBoundables).addChildBoundable(childBoundable)
}
return parentBoundables
}
isEmpty() {
if (!this._built) return this._itemBoundables.isEmpty()
return this._root.isEmpty()
}
get interfaces_() {
return [Serializable]
}
}
function IntersectsOp() {}
AbstractSTRtree.IntersectsOp = IntersectsOp
AbstractSTRtree.DEFAULT_NODE_CAPACITY = 10