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/*
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
const queue = {
fetch: [],
put: [],
post: [],
destroy: []
};
const initQueue = () => {
queue['fetch'] = [];
queue['put'] = [];
queue['post'] = [];
queue['destroy'] = [];
};
const handleOperation = (handler, options) => {
if(typeof handler === 'function') {
return Promise.resolve(handler(options));
}
else {
return Promise.resolve(handler);
}
};
export default {
fetch(baseUrl, options) {
const {fetch} = queue;
if(!fetch.length) {
throw new Error(`Fetch operation was called without proper handler. baseUrl: '${baseUrl}' options: '${options}'`);
}
return handleOperation(fetch.shift(), {options, baseUrl});
},
put(baseUrl, data, options) {
const {put} = queue;
if(!put.length) {
throw new Error(`put operation was called without proper handler. baseUrl: '${baseUrl}' options: '${options}'`);
}
return handleOperation(put.shift(), {data, options, baseUrl});
},
post(baseUrl, data, options) {
const {post} = queue;
if(!post.length) {
throw new Error(`post operation was called without proper handler. baseUrl: '${baseUrl}' options: '${options}'`);
}
return handleOperation(post.shift(), {data, options, baseUrl});
},
destroy(baseUrl, options) {
const {destroy} = queue;
if(!destroy.length) {
throw new Error(`Destroy operation was called without proper handler. baseUrl: '${baseUrl}' options: '${options}'`);
}
return handleOperation(destroy.shift(), {options, baseUrl});
},
addHandler(operation, handler) {
queue[operation].push(handler);
},
resetQueue() {
initQueue();
}
};
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