Added code contributed by BJ Hargrave to begin a Servlet 2.1 API bundle (FELIX-40).
git-svn-id: https://svn.apache.org/repos/asf/incubator/felix/trunk@355208 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/javax.servlet/src/main/java/javax/servlet/ServletInputStream.java b/javax.servlet/src/main/java/javax/servlet/ServletInputStream.java
new file mode 100644
index 0000000..ba3ac20
--- /dev/null
+++ b/javax.servlet/src/main/java/javax/servlet/ServletInputStream.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 1999,2005 The Apache Software Foundation.
+ *
+ * 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 javax.servlet;
+
+import java.io.InputStream;
+import java.io.IOException;
+
+/**
+ *
+ * Provides an input stream for reading binary data from a client
+ * request, including an efficient <code>readLine</code> method
+ * for reading data one line at a time. With some protocols, such
+ * as HTTP POST and PUT, a <code>ServletInputStream</code>
+ * object can be used to read data sent from the client.
+ *
+ * <p>A <code>ServletInputStream</code> object is normally retrieved via
+ * the {@link ServletRequest#getInputStream} method.
+ *
+ *
+ * <p>This is an abstract class that a servlet container implements.
+ * Subclasses of this class
+ * must implement the <code>java.io.InputStream.read()</code> method.
+ *
+ *
+ * @author Various
+ * @version $Version$
+ *
+ * @see ServletRequest
+ *
+ */
+
+public abstract class ServletInputStream extends InputStream {
+
+
+
+ /**
+ * Does nothing, because this is an abstract class.
+ *
+ */
+
+ protected ServletInputStream() { }
+
+
+
+
+ /**
+ *
+ * Reads the input stream, one line at a time. Starting at an
+ * offset, reads bytes into an array, until it reads a certain number
+ * of bytes or reaches a newline character, which it reads into the
+ * array as well.
+ *
+ * <p>This method returns -1 if it reaches the end of the input
+ * stream before reading the maximum number of bytes.
+ *
+ *
+ *
+ * @param b an array of bytes into which data is read
+ *
+ * @param off an integer specifying the character at which
+ * this method begins reading
+ *
+ * @param len an integer specifying the maximum number of
+ * bytes to read
+ *
+ * @return an integer specifying the actual number of bytes
+ * read, or -1 if the end of the stream is reached
+ *
+ * @exception IOException if an input or output exception has occurred
+ *
+ */
+
+ public int readLine(byte[] b, int off, int len) throws IOException {
+
+ if (len <= 0) {
+ return 0;
+ }
+ int count = 0, c;
+
+ while ((c = read()) != -1) {
+ b[off++] = (byte)c;
+ count++;
+ if (c == '\n' || count == len) {
+ break;
+ }
+ }
+ return count > 0 ? count : -1;
+ }
+}
+
+
+