1 files changed, 178 insertions, 0 deletions
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/common/util/ZipUtil.java b/common-app-api/src/main/java/org/openecomp/sdc/common/util/ZipUtil.java
new file mode 100644
index 0000000000..ac25c40cf7
--- /dev/null
+++ b/common-app-api/src/main/java/org/openecomp/sdc/common/util/ZipUtil.java
@@ -0,0 +1,178 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.common.util;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import org.apache.commons.io.output.ByteArrayOutputStream;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ZipUtil {
+
+	private static Logger log = LoggerFactory.getLogger(ZipUtil.class.getName());
+
+	private ZipUtil() {
+	}
+
+	public static Map<String, byte[]> readZip(byte[] zipAsBytes) {
+
+		ZipInputStream zis = null;
+		zis = new ZipInputStream(new ByteArrayInputStream(zipAsBytes));
+
+		return readZip(zis);
+	}
+
+	public static Map<String, byte[]> readZip(ZipInputStream zis) {
+
+		Map<String, byte[]> fileNameToByteArray = new HashMap<String, byte[]>();
+
+		byte[] buffer = new byte[1024];
+		try {
+			// get the zipped file list entry
+			ZipEntry ze = zis.getNextEntry();
+
+			while (ze != null) {
+
+				String fileName = ze.getName();
+
+				if (false == ze.isDirectory()) {
+
+					ByteArrayOutputStream os = new ByteArrayOutputStream();
+					try {
+						int len;
+						while ((len = zis.read(buffer)) > 0) {
+							os.write(buffer, 0, len);
+						}
+
+						fileNameToByteArray.put(fileName, os.toByteArray());
+
+					} finally {
+						if (os != null) {
+							os.close();
+						}
+					}
+				}
+				ze = zis.getNextEntry();
+
+			}
+
+			zis.closeEntry();
+			zis.close();
+
+		} catch (IOException ex) {
+			ex.printStackTrace();
+			return null;
+		} finally {
+			if (zis != null) {
+				try {
+					zis.closeEntry();
+					zis.close();
+				} catch (IOException e) {
+					// TODO: add log
+				}
+
+			}
+		}
+
+		return fileNameToByteArray;
+
+	}
+
+	public static void main(String[] args) {
+
+		String zipFileName = "/src/test/resources/config/config.zip";
+
+		zipFileName = "C:\\Git_work\\D2-SDnC\\catalog-be\\src\\test\\resources\\config\\config.zip";
+
+		Path path = Paths.get(zipFileName);
+
+		try {
+			byte[] zipAsBytes = Files.readAllBytes(path);
+			// encode to base
+
+			ZipUtil.readZip(zipAsBytes);
+
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+
+	}
+
+	public static byte[] zipBytes(byte[] input) throws IOException {
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		ZipOutputStream zos = new ZipOutputStream(baos);
+		ZipEntry entry = new ZipEntry("zip");
+		entry.setSize(input.length);
+		zos.putNextEntry(entry);
+		zos.write(input);
+		zos.closeEntry();
+		zos.close();
+		return baos.toByteArray();
+	}
+
+	public static byte[] unzip(byte[] zipped) {
+		ZipInputStream zipinputstream = null;
+		ByteArrayOutputStream outputStream = null;
+		try {
+			byte[] buf = new byte[1024];
+
+			zipinputstream = new ZipInputStream(new ByteArrayInputStream(zipped));
+			ZipEntry zipentry = zipinputstream.getNextEntry();
+			outputStream = new ByteArrayOutputStream();
+			int n;
+			while ((n = zipinputstream.read(buf, 0, 1024)) > -1) {
+				outputStream.write(buf, 0, n);
+			}
+
+			return outputStream.toByteArray();
+		} catch (Exception e) {
+			throw new IllegalStateException("Can't unzip input stream", e);
+		} finally {
+			if (outputStream != null) {
+				try {
+					outputStream.close();
+				} catch (IOException e) {
+					log.debug("Failed to close output stream", e);
+				}
+			}
+			if (zipinputstream != null) {
+				try {
+					zipinputstream.closeEntry();
+					zipinputstream.close();
+				} catch (IOException e) {
+					log.debug("Failed to close zip input stream", e);
+				}
+			}
+		}
+	}
+
+}