remove all apache.commons

spring-cloud-alibaba-starters/spring-cloud-alibaba-commons/src/main/java/com/alibaba/cloud/commons/FileUtils.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2013-2019 the original author or 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
+ *
+ *      https://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 com.alibaba.cloud.commons;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.Charset;
+
+/**
+ * FileUtils. copy from apache commons.io.
+ * @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
+ */
+public class FileUtils {
+
+	/**
+	 * Reads the contents of a file into a String. The file is always closed.
+	 *
+	 * @param file the file to read, must not be {@code null}
+	 * @param encoding the encoding to use, {@code null} means platform default
+	 * @return the file contents, never {@code null}
+	 * @throws java.io.IOException in case of an I/O error
+	 * @throws java.nio.charset.UnsupportedCharsetException thrown instead of
+	 *     {@link java.io .UnsupportedEncodingException} in version 2.2 if the encoding is
+	 *     not supported.
+	 * @since 2.3
+	 */
+	public static String readFileToString(final File file, final String encoding)
+			throws IOException {
+		return readFileToString(file, Charsets.toCharset(encoding));
+	}
+
+	/**
+	 * Reads the contents of a file into a String using the default encoding for the VM.
+	 * The file is always closed.
+	 *
+	 * @param file the file to read, must not be {@code null}
+	 * @return the file contents, never {@code null}
+	 * @throws IOException in case of an I/O error
+	 * @since 1.3.1
+	 * @deprecated 2.5 use {@link #readFileToString(File, java.nio.charset.Charset)}
+	 * instead (and specify the appropriate encoding)
+	 */
+	@Deprecated
+	public static String readFileToString(final File file) throws IOException {
+		return readFileToString(file, Charset.defaultCharset());
+	}
+}