init code

[vfc/nfvo/wfengine.git] / wso2 / rest-client / src / main / java / org / openo / baseservice / roa / util / restclient / RestfulConfigure.java

diff --git a/wso2/rest-client/src/main/java/org/openo/baseservice/roa/util/restclient/RestfulConfigure.java b/wso2/rest-client/src/main/java/org/openo/baseservice/roa/util/restclient/RestfulConfigure.java
new file mode 100644 (file)
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--- /dev/null
+++ b/wso2/rest-client/src/main/java/org/openo/baseservice/roa/util/restclient/RestfulConfigure.java
@@ -0,0 +1,162 @@
+/*
+ * 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.openo.baseservice.roa.util.restclient;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+
+import org.openo.baseservice.roa.util.ReaderHelper;
+import org.openo.baseservice.util.impl.SystemEnvVariablesFactory;
+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;
+        }
+        BufferedReader reader = null;
+        final StringBuilder jsonstr = new StringBuilder();
+        JSONObject jo = null;
+        try {
+            reader = new BufferedReader(new FileReader(file));
+            final ReaderHelper rHelpper = new ReaderHelper(reader);
+            String tempString = null;
+            while((tempString = rHelpper.getLine()) != null) {
+                jsonstr.append(tempString);
+            }
+            jo = JSONObject.fromObject(jsonstr.toString());
+        } catch(final IOException e) {
+            LOG.error("load file exception:" + e);
+        } finally {
+            if(reader != null) {
+                try {
+                    reader.close();
+                } catch(final IOException e) {
+                    LOG.error("close error.", e);
+                }
+            }
+        }
+        return jo;
+    }
+}