Initial copy of buildMetadata

tools/java/common/src/com/google/i18n/phonenumbers/FileUtils.java

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+/*
+ *  Copyright (C) 2011 The Libphonenumber Authors
+ *
+ *  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.
+ *  under the License.
+ */
+
+package com.google.i18n.phonenumbers;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+/**
+ * Helper class containing methods designed to ease file manipulation and generation.
+ *
+ * @author Philippe Liard
+ */
+public class FileUtils {
+  /**
+   * Silently closes a resource (i.e: don't throw any exception).
+   */
+  private static void close(Closeable closeable) {
+    if (closeable == null) {
+      return;
+    }
+    try {
+      closeable.close();
+    } catch (IOException e) {
+      System.err.println(e.getMessage());
+    }
+  }
+
+  /**
+   * Silently closes multiple resources. This method doesn't throw any exception when an error
+   * occurs when a resource is being closed.
+   */
+  public static void closeFiles(Closeable ... closeables) {
+    for (Closeable closeable : closeables) {
+      close(closeable);
+    }
+  }
+}