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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
var sandbox = null;
function init_sandbox() {
try {
// if possible, use evalcx (not always available)
sandbox = evalcx('');
sandbox.emit = Views.emit;
sandbox.sum = Views.sum;
sandbox.log = log;
sandbox.toJSON = Couch.toJSON;
sandbox.provides = Mime.provides;
sandbox.registerType = Mime.registerType;
sandbox.start = Render.start;
sandbox.send = Render.send;
sandbox.getRow = Render.getRow;
} catch (e) {
log(e.toSource());
}
};
init_sandbox();
// Commands are in the form of json arrays:
// ["commandname",..optional args...]\n
//
// Responses are json values followed by a new line ("\n")
var DDoc = (function() {
var ddoc_dispatch = {
"lists" : Render.list,
"shows" : Render.show,
"filters" : Filter.filter,
"updates" : Render.update,
"validate_doc_update" : Validate.validate
};
var ddocs = {};
return {
ddoc : function() {
var args = [];
for (var i=0; i < arguments.length; i++) {
args.push(arguments[i]);
};
var ddocId = args.shift();
if (ddocId == "new") {
// get the real ddocId.
ddocId = args.shift();
// store the ddoc, functions are lazily compiled.
ddocs[ddocId] = args.shift();
print("true");
} else {
// Couch makes sure we know this ddoc already.
var ddoc = ddocs[ddocId];
if (!ddoc) throw(["fatal", "query_protocol_error", "uncached design doc: "+ddocId]);
var funPath = args.shift();
var cmd = funPath[0];
// the first member of the fun path determines the type of operation
var funArgs = args.shift();
if (ddoc_dispatch[cmd]) {
// get the function, call the command with it
var point = ddoc;
for (var i=0; i < funPath.length; i++) {
if (i+1 == funPath.length) {
fun = point[funPath[i]]
if (typeof fun != "function") {
fun = Couch.compileFunction(fun);
// cache the compiled fun on the ddoc
point[funPath[i]] = fun
};
} else {
point = point[funPath[i]]
}
};
// run the correct responder with the cmd body
ddoc_dispatch[cmd].apply(null, [fun, ddoc, funArgs]);
} else {
// unknown command, quit and hope the restarted version is better
throw(["fatal", "unknown_command", "unknown ddoc command '" + cmd + "'"]);
}
}
}
};
})();
var Loop = function() {
var line, cmd, cmdkey, dispatch = {
"ddoc" : DDoc.ddoc,
// "view" : Views.handler,
"reset" : State.reset,
"add_fun" : State.addFun,
"map_doc" : Views.mapDoc,
"reduce" : Views.reduce,
"rereduce" : Views.rereduce
};
function handleError(e) {
var type = e[0];
if (type == "fatal") {
e[0] = "error"; // we tell the client it was a fatal error by dying
respond(e);
quit(-1);
} else if (type == "error") {
respond(e);
} else if (e.error && e.reason) {
// compatibility with old error format
respond(["error", e.error, e.reason]);
} else {
respond(["error","unnamed_error",e.toSource()]);
}
};
while (line = readline()) {
cmd = eval('('+line+')');
State.line_length = line.length;
try {
cmdkey = cmd.shift();
if (dispatch[cmdkey]) {
// run the correct responder with the cmd body
dispatch[cmdkey].apply(null, cmd);
} else {
// unknown command, quit and hope the restarted version is better
throw(["fatal", "unknown_command", "unknown command '" + cmdkey + "'"]);
}
} catch(e) {
handleError(e);
}
};
};
Loop();
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