1 files changed, 297 insertions, 0 deletions
diff --git a/juju/juju-vnfmadapter/Juju-vnfmadapterService/service/src/main/java/org/openo/nfvo/jujuvnfmadapter/common/EntityUtils.java b/juju/juju-vnfmadapter/Juju-vnfmadapterService/service/src/main/java/org/openo/nfvo/jujuvnfmadapter/common/EntityUtils.java
new file mode 100644
index 0000000..9899c34
--- /dev/null
+++ b/juju/juju-vnfmadapter/Juju-vnfmadapterService/service/src/main/java/org/openo/nfvo/jujuvnfmadapter/common/EntityUtils.java
@@ -0,0 +1,297 @@
+/*
+ * 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.nfvo.jujuvnfmadapter.common;
+
+import java.io.File;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeoutException;
+
+import org.apache.commons.lang3.StringUtils;
+import org.openo.nfvo.jujuvnfmadapter.service.constant.Constant;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import net.sf.json.JSONObject;
+
+/**
+ * <br/>
+ * <p>
+ * </p>
+ * 
+ * @author
+ * @version NFVO 0.5 Aug 30, 2016
+ */
+public class EntityUtils {
+
+    private static final Logger LOG = LoggerFactory.getLogger(EntityUtils.class);
+
+    public static final String RESULT_CODE_KEY = "retCode";
+
+    public static final String MSG_KEY = "msg";
+
+    public static final String DATA_KEY = "data";
+
+    public static final String STATUS = "status";
+
+    /**
+     * Constructor<br/>
+     * <p>
+     * </p>
+     */
+    private EntityUtils() {
+        // Empty Constructor
+    }
+
+    /**
+     * <br>
+     * 
+     * @param jsonObject
+     * @param clazz
+     * @return T
+     * @throws Exception
+     */
+    @SuppressWarnings("unchecked")
+    public static <T> T toEntity(JSONObject jsonObject, Class<?> clazz) throws Exception { // NOSONAR
+        T instance = (T)clazz.newInstance();
+        Field[] fields = clazz.getDeclaredFields();
+        for(int i = 0; i < fields.length; i++) {
+            fields[i].setAccessible(true);
+            fields[i].set(instance, jsonObject.get(fields[i].getName()));
+        }
+        return instance;
+    }
+
+    /**
+     * format the obj to str style as json format.
+     * <br/>
+     * 
+     * @param obj
+     * @param clazz
+     * @return
+     * @since NFVO 0.5
+     */
+    public static String toString(Object obj, Class<?> clazz) {
+        JSONObject jsonObj = new JSONObject();
+        try {
+            Field[] fields = clazz.getDeclaredFields();
+            for(int i = 0; i < fields.length; i++) {
+                fields[i].setAccessible(true);
+                jsonObj.put(fields[i].getName(), obj != null ? fields[i].get(obj) : "");
+            }
+        } catch(Exception e) {
+            LOG.error("to string error:", e);
+        }
+        return jsonObj.toString();
+    }
+
+    /**
+     * <br>
+     * <p>
+     * </p>
+     * 
+     * @author
+     */
+    public static class ExeRes {
+
+        public static final int SUCCESS = 0;
+
+        public static final int FAILURE = -1;
+
+        private int code;
+
+        private String body;
+
+        /**
+         * @return Returns the code.
+         */
+        public int getCode() {
+            return code;
+        }
+
+        /**
+         * @param code The code to set.
+         */
+        public void setCode(int code) {
+            this.code = code;
+        }
+
+        /**
+         * @return Returns the body.
+         */
+        public String getBody() {
+            return body;
+        }
+
+        /**
+         * @param body The body to set.
+         */
+        public void setBody(String body) {
+            this.body = body;
+        }
+
+        @Override
+        public String toString() {
+            try {
+                return EntityUtils.toString(this, this.getClass());
+            } catch(Exception e) {
+                LOG.error("to string error:", e);
+                return "code:" + this.getCode() + ",body:" + this.getBody();
+            }
+        }
+
+    }
+
+    /**
+     * <br>
+     * 
+     * @param command
+     * @return String
+     */
+    public static String formatCommand(List<String> command) {
+        StringBuilder builder = new StringBuilder();
+        if(command != null) {
+            for(String cmd : command) {
+                builder.append(cmd).append(" "); // NOSONAR
+            }
+        }
+        return builder.toString();
+
+    }
+
+    /**
+     * <br>
+     * 
+     * @param dir
+     * @param command
+     * @return
+     */
+    public static ExeRes execute(String dir, String... command) {
+        List<String> commands = new ArrayList<>(command.length);
+        for(String arg : command) {
+            commands.add(arg);
+        }
+        return execute(dir, commands);
+
+    }
+
+    /**
+     * execute local command
+     * <br/>
+     * 
+     * @param dir the command path
+     * @param command
+     * @return response msg
+     * @since NFVO 0.5
+     */
+    public static ExeRes execute(String dir, List<String> command) {
+        ExeRes er = new ExeRes();
+        StringBuilder sb = new StringBuilder();
+        try {
+            if(SwitchController.isDebugModel()) {
+                String resContent = new String(FileUtils.readFile(new File(JujuConfigUtil.getValue("juju_cmd_res_file")), "UTF-8"));
+                er.setBody(resContent);
+                return er;
+            }
+            ProcessBuilder pb = new ProcessBuilder(command);
+            if(StringUtils.isNotBlank(dir)) {
+                pb.directory(new File(dir));
+            }
+            pb.redirectErrorStream(true);
+            Process p = pb.start();
+
+            // wait the process result
+            buildProcessResult(er, p);
+
+            InputStream in = p.getInputStream();
+            byte[] buffer = new byte[1024];
+            int length;
+            while((length = in.read(buffer)) > 0) {
+                sb.append(new String(buffer, 0, length));
+            }
+            in.close();
+            er.setBody(sb.toString());
+        } catch(Exception e) {
+            er.setCode(ExeRes.FAILURE);
+            er.setBody(e.getMessage());
+            LOG.error("execute the command failed:{}", command, e);
+        }
+        return er;
+    }
+
+    /**
+     * <br/>
+     * 
+     * @param er
+     * @param p
+     * @throws TimeoutException
+     * @throws InterruptedException
+     * @since NFVO 0.5
+     */
+    private static void buildProcessResult(ExeRes er, Process p) throws TimeoutException, InterruptedException {
+        Worker worker = new Worker(p);
+        worker.start();
+        try {
+            worker.join(Constant.PROCESS_WAIT_MILLIS);
+            if(worker.exitValue != null) {
+                int exit = worker.exitValue;
+                if(exit != 0) {
+                    er.setCode(ExeRes.FAILURE);
+                    LOG.warn("the process exit non-normal");
+                } else {
+                    er.setCode(ExeRes.SUCCESS);
+                }
+            } else {
+                er.setCode(ExeRes.FAILURE);
+                LOG.warn("the process execute timeout.");
+                throw new TimeoutException();
+            }
+        } catch(InterruptedException e) {
+            worker.interrupt();
+            Thread.currentThread().interrupt();
+            throw e;
+        }
+    }
+
+    private static class Worker extends Thread {
+
+        private final Process process;
+
+        private Integer exitValue;
+
+        private Worker(Process process) {
+            this.process = process;
+        }
+
+        /**
+         * <br/>
+         * 
+         * @since NFVO 0.5
+         */
+        @Override
+        public void run() {
+            try {
+                exitValue = process.waitFor();
+            } catch(InterruptedException e) {
+                return;
+            }
+        }
+
+    }
+}