Migrate Spike code to ONAP

[aai/spike.git] / src / test / java / org / onap / aai / spike / test / util / TestFileReader.java

diff --git a/src/test/java/org/onap/aai/spike/test/util/TestFileReader.java b/src/test/java/org/onap/aai/spike/test/util/TestFileReader.java
new file mode 100644 (file)
index 0000000..1f9e57f
--- /dev/null
+++ b/src/test/java/org/onap/aai/spike/test/util/TestFileReader.java
@@ -0,0 +1,88 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 Amdocs
+ * ================================================================================
+ * 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.onap.aai.spike.test.util;
+
+import static org.junit.Assert.fail;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class TestFileReader {
+
+    public static String getFileAsString(String resourceFilename) throws IOException, URISyntaxException {
+        return getContentUtf8(getPath(resourceFilename));
+    }
+
+    /**
+     * This helper method reads the contents of a file into a simple string.
+     *
+     * @param file - The file to be imported.
+     * @return - The file contents expressed as a simple string.
+     * @throws IOException if there is a problem reading the file
+     */
+    public static String readFileToString(File file) throws IOException {
+
+        BufferedReader br = new BufferedReader(new FileReader(file));
+        try {
+            StringBuilder sb = new StringBuilder();
+            String line = br.readLine();
+
+            while (line != null) {
+                sb.append(line);
+                line = br.readLine();
+            }
+
+            return sb.toString().replaceAll("\\s+", "");
+        } finally {
+            try {
+                br.close();
+            } catch (IOException e) {
+                fail("Unexpected IOException: " + e.getMessage());
+            }
+        }
+    }
+
+    private static Path getPath(String resourceFilename) throws URISyntaxException {
+        URL resource = ClassLoader.getSystemResource(resourceFilename);
+        if (resource != null) {
+            return Paths.get(resource.toURI());
+        }
+
+        // If the resource is not found relative to the classpath, try to get it from the file system
+        // directly.
+        File file = new File(resourceFilename);
+        if (!file.exists()) {
+            throw new RuntimeException("Resource does not exist: " + resourceFilename);
+        }
+        return file.toPath();
+    }
+
+    private static String getContentUtf8(Path filePath) throws IOException {
+        return new String(Files.readAllBytes(filePath));
+    }
+}