X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2FStreamUtils.java;fp=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2FStreamUtils.java;h=1cfa5b2206fe0c83ff044d6871277b9c4cdf92f0;hb=77a5498dd5d10d2442127022efd6501a7dbddbae;hp=0000000000000000000000000000000000000000;hpb=61780b581925666edd4bd7743a00dca7170f1d35;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.util/src/org/argeo/util/StreamUtils.java b/org.argeo.util/src/org/argeo/util/StreamUtils.java
new file mode 100644
index 000000000..1cfa5b220
--- /dev/null
+++ b/org.argeo.util/src/org/argeo/util/StreamUtils.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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.argeo.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.io.Writer;
+
+/** Utilities to be used when APache COmmons IO is not available. */
+class StreamUtils {
+	private static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
+
+	/*
+	 * APACHE COMMONS IO (inspired)
+	 */
+
+	/** @return the number of bytes */
+	public static Long copy(InputStream in, OutputStream out)
+			throws IOException {
+		Long count = 0l;
+		byte[] buf = new byte[DEFAULT_BUFFER_SIZE];
+		while (true) {
+			int length = in.read(buf);
+			if (length < 0)
+				break;
+			out.write(buf, 0, length);
+			count = count + length;
+		}
+		return count;
+	}
+
+	/** @return the number of chars */
+	public static Long copy(Reader in, Writer out) throws IOException {
+		Long count = 0l;
+		char[] buf = new char[DEFAULT_BUFFER_SIZE];
+		while (true) {
+			int length = in.read(buf);
+			if (length < 0)
+				break;
+			out.write(buf, 0, length);
+			count = count + length;
+		}
+		return count;
+	}
+
+	public static void closeQuietly(InputStream in) {
+		if (in != null)
+			try {
+				in.close();
+			} catch (Exception e) {
+				//
+			}
+	}
+
+	public static void closeQuietly(OutputStream out) {
+		if (out != null)
+			try {
+				out.close();
+			} catch (Exception e) {
+				//
+			}
+	}
+
+	public static void closeQuietly(Reader in) {
+		if (in != null)
+			try {
+				in.close();
+			} catch (Exception e) {
+				//
+			}
+	}
+
+	public static void closeQuietly(Writer out) {
+		if (out != null)
+			try {
+				out.close();
+			} catch (Exception e) {
+				//
+			}
+	}
+}