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import { HashMap } from "./HashMap.js";
import { StringUtil } from "./StringUtil.js";
import {
AlreadyRegisteredException,
NotRegisteredException,
ObjectNotExistException,
FacetNotExistException,
} from "./LocalExceptions.js";
import { identityToString } from "./IdentityToString.js";
//
// Only for use by Ice.ObjectAdapter.
//
export class ServantManager {
constructor(instance, adapterName) {
this._instance = instance;
this._adapterName = adapterName;
// Map<Ice.Identity, Map<String, Ice.Object> >
this._servantMapMap = new HashMap(HashMap.compareEquals);
// Map<String, Ice.Object>
this._defaultServantMap = new Map();
// Map<String, Ice.ServantLocator>
this._locatorMap = new Map();
}
async dispatch(request) {
const current = request.current;
let servant = this.findServant(current.id, current.facet);
if (servant !== null) {
// the simple, common path
return await servant.dispatch(request);
}
// Else, check servant locators
let locator = this.findServantLocator(current.id.category);
if (locator === null && current.id.category.length > 0) {
locator = this.findServantLocator("");
}
if (locator !== null) {
const cookie = {};
try {
servant = locator.locate(current, cookie);
} catch (ex) {
// Skip the encapsulation. This allows the next batch requests in the same InputStream to proceed.
request.inputStream.skipEncapsulation();
throw ex;
}
if (servant !== null) {
try {
return await servant.dispatch(request);
} finally {
locator.finished(current, servant, cookie.value);
}
}
}
console.assert(servant === null);
// Skip the encapsulation. This allows the next batch requests in the same InputStream to proceed.
request.inputStream.skipEncapsulation();
if (this.hasServant(current.id)) {
throw new FacetNotExistException();
} else {
throw new ObjectNotExistException();
}
}
addServant(servant, ident, facet) {
console.assert(this._instance !== null); // Must not be called after destruction.
if (facet === null) {
facet = "";
}
let m = this._servantMapMap.get(ident);
if (m === undefined) {
m = new Map();
this._servantMapMap.set(ident, m);
} else if (m.has(facet)) {
let id = identityToString(ident, this._instance.toStringMode());
if (facet.length > 0) {
id += " -f " + StringUtil.escapeString(facet, "", this._instance.toStringMode());
}
throw new AlreadyRegisteredException("servant", id);
}
m.set(facet, servant);
}
addDefaultServant(servant, category) {
console.assert(this._instance !== null); // Must not be called after destruction
if (this._defaultServantMap.has(category)) {
throw new AlreadyRegisteredException("default servant", category);
}
this._defaultServantMap.set(category, servant);
}
removeServant(ident, facet) {
console.assert(this._instance !== null); // Must not be called after destruction.
if (facet === null) {
facet = "";
}
const m = this._servantMapMap.get(ident);
if (m === undefined || !m.has(facet)) {
let id = identityToString(ident, this._instance.toStringMode());
if (facet.length > 0) {
id += " -f " + StringUtil.escapeString(facet, "", this._instance.toStringMode());
}
throw new NotRegisteredException("servant", id);
}
const obj = m.get(facet);
m.delete(facet);
if (m.size === 0) {
this._servantMapMap.delete(ident);
}
return obj;
}
removeDefaultServant(category) {
console.assert(this._instance !== null); // Must not be called after destruction.
const obj = this._defaultServantMap.get(category);
if (obj === undefined) {
throw new NotRegisteredException("default servant", category);
}
this._defaultServantMap.delete(category);
return obj;
}
removeAllFacets(ident) {
console.assert(this._instance !== null); // Must not be called after destruction.
const m = this._servantMapMap.get(ident);
if (m === undefined) {
throw new NotRegisteredException("servant", identityToString(ident, this._instance.toStringMode()));
}
this._servantMapMap.delete(ident);
return m;
}
findServant(ident, facet) {
if (facet === null) {
facet = "";
}
const m = this._servantMapMap.get(ident);
let obj = null;
if (m === undefined) {
obj = this._defaultServantMap.get(ident.category);
if (obj === undefined) {
obj = this._defaultServantMap.get("");
}
} else {
obj = m.get(facet);
}
return obj === undefined ? null : obj;
}
findDefaultServant(category) {
console.assert(this._instance !== null); // Must not be called after destruction.
const ds = this._defaultServantMap.get(category);
return ds === undefined ? null : ds;
}
findAllFacets(ident) {
console.assert(this._instance !== null); // Must not be called after destruction.
const m = this._servantMapMap.get(ident);
if (m !== undefined) {
return new Map(m);
}
return new Map();
}
hasServant(ident) {
const m = this._servantMapMap.get(ident);
if (m === undefined) {
return false;
} else {
console.assert(m.size > 0);
return true;
}
}
addServantLocator(locator, category) {
console.assert(this._instance !== null); // Must not be called after destruction.
if (this._locatorMap.has(category)) {
throw new AlreadyRegisteredException(
"servant locator",
StringUtil.escapeString(category, "", this._instance.toStringMode()),
);
}
this._locatorMap.set(category, locator);
}
removeServantLocator(category) {
console.assert(this._instance !== null); // Must not be called after destruction.
const l = this._locatorMap.get(category);
if (l === undefined) {
throw new NotRegisteredException(
"servant locator",
StringUtil.escapeString(category, "", this._instance.toStringMode()),
);
}
this._locatorMap.delete(category);
return l;
}
findServantLocator(category) {
const l = this._locatorMap.get(category);
return l === undefined ? null : l;
}
//
// Only for use by Ice.ObjectAdapterI.
//
destroy() {
console.assert(this._instance !== null); // Must not be called after destruction.
const logger = this._instance.initializationData().logger;
this._servantMapMap.clear();
this._defaultServantMap.clear();
const locatorMap = new Map(this._locatorMap);
this._locatorMap.clear();
this._instance = null;
for (const [key, locator] of locatorMap) {
try {
locator.deactivate(key);
} catch (ex) {
logger.error(
"exception during locator deactivation:\nobject adapter: `" +
this._adapterName +
"'\nlocator category: `" +
key +
"'\n" +
ex.toString(),
);
}
}
}
}
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