1 files changed, 177 insertions, 0 deletions
diff --git a/catalog-core/catalog-mgr/src/main/java/org/openo/commontosca/catalog/common/FileUtil.java b/catalog-core/catalog-mgr/src/main/java/org/openo/commontosca/catalog/common/FileUtil.java
new file mode 100644
index 00000000..ce90f34c
--- /dev/null
+++ b/catalog-core/catalog-mgr/src/main/java/org/openo/commontosca/catalog/common/FileUtil.java
@@ -0,0 +1,177 @@
+/**
+ * Copyright 2016 [ZTE] and others.
+ *
+ * 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.commontosca.catalog.common;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class FileUtil {
+
+    public static final Logger LOG = LoggerFactory.getLogger(FileUtil.class);
+
+    private static final int BUFFER_SIZE = 2 * 1024 * 1024;
+
+    private static final int TRY_COUNT = 3;
+
+    private FileUtil() {
+
+    }
+
+    /**
+     * create dir
+     * 
+     * @param dir
+     */
+    public static boolean createDirectory(String dir) {
+        File folder = new File(dir);
+        int tryCount = 0;
+        while (tryCount < TRY_COUNT) {
+            tryCount++;
+            if (!folder.exists() && !folder.mkdirs()) {
+                continue;
+            } else {
+                return true;
+            }
+        }
+
+        return folder.exists();
+    }
+
+    public static boolean deleteFile(File file) {
+        String hintInfo = file.isDirectory() ? "dir " : "file ";
+        boolean isFileDeleted = file.delete();
+        boolean isFileExist = file.exists();
+        if (!isFileExist) {
+            if (isFileDeleted) {
+                LOG.info("delete " + hintInfo + file.getAbsolutePath());
+            } else {
+                isFileDeleted = true;
+                LOG.info("file not exist. no need delete " + hintInfo + file.getAbsolutePath());
+            }
+        } else {
+            LOG.info("fail to delete " + hintInfo + file.getAbsolutePath());
+        }
+        return isFileDeleted;
+    }
+
+    /**
+     * unzip zip file
+     * 
+     * @param zipFileName
+     * @param unzip dir
+     * @throws IOException
+     */
+    public static ArrayList<String> unzip(String zipFileName, String extPlace) throws IOException {
+        ZipFile zipFile = null;
+        ArrayList<String> unzipFileNams = new ArrayList<String>();
+
+        try {
+            zipFile = new ZipFile(zipFileName);
+            Enumeration<?> fileEn = zipFile.entries();
+            byte[] buffer = new byte[BUFFER_SIZE];
+
+            while (fileEn.hasMoreElements()) {
+                InputStream input = null;
+                BufferedOutputStream bos = null;
+                try {
+                    ZipEntry entry = (ZipEntry) fileEn.nextElement();
+                    if (entry.isDirectory()) {
+                        continue;
+                    }
+
+                    input = zipFile.getInputStream(entry);
+                    File file = new File(extPlace, entry.getName());
+                    if (!file.getParentFile().exists()) {
+                        createDirectory(file.getParentFile().getAbsolutePath());
+                    }
+
+                    bos = new BufferedOutputStream(new FileOutputStream(file));
+                    while (true) {
+                        int length = input.read(buffer);
+                        if (length == -1) {
+                            break;
+                        }
+                        bos.write(buffer, 0, length);
+                    }
+                    unzipFileNams.add(file.getAbsolutePath());
+                } finally {
+                    closeOutputStream(bos);
+                    closeInputStream(input);
+                }
+            }
+        } finally {
+            closeZipFile(zipFile);
+        }
+        return unzipFileNams;
+    }
+
+    /**
+     * close InputStream
+     * 
+     * @param inputStream
+     */
+    private static void closeInputStream(InputStream inputStream) {
+        try {
+            if (inputStream != null) {
+                inputStream.close();
+            }
+        } catch (Exception e) {
+            LOG.info("close InputStream error!");
+        }
+    }
+
+    /**
+     * close OutputStream
+     * 
+     * @param outputStream
+     */
+    private static void closeOutputStream(OutputStream outputStream) {
+        try {
+            if (outputStream != null) {
+                outputStream.close();
+            }
+        } catch (Exception e) {
+            LOG.info("close OutputStream error!");
+        }
+    }
+
+    /**
+     * close zipFile
+     * 
+     * @param zipFile
+     */
+    private static void closeZipFile(ZipFile zipFile) {
+        try {
+            if (zipFile != null) {
+                zipFile.close();
+                zipFile = null;
+            }
+        } catch (IOException e) {
+            LOG.info("close ZipFile error!");
+        }
+    }
+}