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/*
* Copyright 2016 Huawei Technologies Co., Ltd.
*
* 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.
*/
package org.onap.vfc.nfvo.multivimproxy.common.util.restclient;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import net.sf.json.JSONObject;
/**
* Rest client options.<br/>
* <p>
* </p>
*
* @author
* @version 28-May-2016
*/
public class RestfulConfigure {
private static final Logger LOG = LoggerFactory.getLogger(RestfulConfigure.class);
private RestfulOptions options = null;
/**
* Constructor<br/>
* <p>
* Use the default path initialization http Rest options.
* </p>
*
* @since
*/
public RestfulConfigure() {
final String config = "/etc/conf/restclient.json";
final String approot = SystemEnvVariablesFactory.getInstance().getAppRoot();
final StringBuilder extendSetting = new StringBuilder();
if(approot != null) {
extendSetting.append(approot);
extendSetting.append(config);
} else {
extendSetting.append(System.getProperty("user.dir"));
extendSetting.append(config);
}
final String configfile = extendSetting.toString();
initRestConf(configfile);
}
/**
* Constructor<br/>
* <p>
* Use the specified file to initialize http Rest options.
* </p>
*
* @since
* @param configfile
*/
public RestfulConfigure(final String configfile) {
initRestConf(configfile);
}
public RestfulOptions getOptions() {
return options;
}
private void initRestConf(final String configfile) {
options = getDefaultOptions();
final JSONObject obj = loadJsonFromFile(configfile);
if(obj != null) {
if(obj.has(RestfulClientConst.SERVER_KEY_NAME)) {
final JSONObject server = obj.getJSONObject(RestfulClientConst.SERVER_KEY_NAME);
setStringOption(server, RestfulClientConst.HOST_KEY_NAME);
setIntOption(server, RestfulClientConst.PORT_KEY_NAME);
}
setIntOption(obj, RestfulClientConst.CONN_TIMEOUT_KEY_NAME);
setIntOption(obj, RestfulClientConst.THREAD_KEY_NAME);
setIntOption(obj, RestfulClientConst.IDLE_TIMEOUT_KEY_NAME);
setIntOption(obj, RestfulClientConst.TIMEOUT_KEY_NAME);
setIntOption(obj, RestfulClientConst.MAX_CONN_PER_ADDR_KEY_NAME);
setIntOption(obj, RestfulClientConst.MAX_RESPONSE_HEADER_SIZE);
setIntOption(obj, RestfulClientConst.MAX_REQUEST_HEADER_SIZE);
} else {
LOG.error("failed to load json from " + configfile);
}
}
private void setStringOption(final JSONObject json, final String key) {
if(json.has(key)) {
options.setOption(key, json.getString(key));
}
}
private void setIntOption(final JSONObject json, final String key) {
if(json.has(key)) {
options.setOption(key, json.getInt(key));
}
}
private RestfulOptions getDefaultOptions() {
options = new RestfulOptions();
options.setOption(RestfulClientConst.CONN_TIMEOUT_KEY_NAME, 3000);
options.setOption(RestfulClientConst.THREAD_KEY_NAME, 200);
options.setOption(RestfulClientConst.IDLE_TIMEOUT_KEY_NAME, 30000);
options.setOption(RestfulClientConst.TIMEOUT_KEY_NAME, 30000);
options.setOption(RestfulClientConst.MAX_CONN_PER_ADDR_KEY_NAME, 50);
options.setOption(RestfulClientConst.MAX_RESPONSE_HEADER_SIZE, 20 * 1024);
options.setOption(RestfulClientConst.MAX_REQUEST_HEADER_SIZE, 20 * 1024);
return options;
}
private JSONObject loadJsonFromFile(final String filePath) {
final File file = new File(filePath);
if((!file.exists()) || (!file.isFile())) {
LOG.error(filePath + "isn't exist.");
return null;
}
final StringBuilder jsonstr = new StringBuilder();
try (BufferedReader reader = new BufferedReader(new FileReader(file))){
final ReaderHelper rHelpper = new ReaderHelper(reader);
String readLine = null;
while(null != (readLine = rHelpper.getLine())) {
jsonstr.append(readLine);
}
} catch(final IOException e) {
LOG.error("load file exception:" + e);
}
return JSONObject.fromObject(jsonstr.toString());
}
}
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