init code

[vfc/nfvo/wfengine.git] / wso2 / common-util / src / main / java / org / openo / baseservice / util / impl / SystemEnvVariablesDefImpl.java

diff --git a/wso2/common-util/src/main/java/org/openo/baseservice/util/impl/SystemEnvVariablesDefImpl.java b/wso2/common-util/src/main/java/org/openo/baseservice/util/impl/SystemEnvVariablesDefImpl.java
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+++ b/wso2/common-util/src/main/java/org/openo/baseservice/util/impl/SystemEnvVariablesDefImpl.java
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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.openo.baseservice.util.impl;
+
+import org.openo.baseservice.util.inf.SystemEnvVariables;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * System environment variable helper implementation.<br/>
+ * <p>
+ * </p>
+ * 
+ * @author
+ * @version   24-Jun-2016
+ */
+public class SystemEnvVariablesDefImpl implements SystemEnvVariables {
+
+    private static final Logger LOG = LoggerFactory.getLogger(SystemEnvVariablesDefImpl.class);
+
+    @Override
+    public String getAppRoot() {
+        String appRoot = null;
+        appRoot = System.getProperty("catalina.base");
+        if(appRoot != null) {
+            appRoot = getCanonicalPath(appRoot);
+        }
+        return appRoot;
+    }
+
+    /**
+     * Gets the canonical path<br/>
+     * 
+     * @param inPath input path
+     * @return the canonical path.
+     * @since  
+     */
+    private String getCanonicalPath(final String inPath) {
+        String path = null;
+        try {
+            if(inPath != null) {
+                final File file = new File(inPath);
+                path = file.getCanonicalPath();
+            }
+        } catch(final IOException e) {
+            LOG.error("file.getCanonicalPath() IOException:", e);
+        }
+        return path;
+    }
+
+}